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AIRWORTHINESS
                       United Kingdom
                       Civil Aviation Authority                                             DIRECTIVE
                                                                                              AD No: G-2004-0010
                                                                                                  Issue Date: 8 April 2004
This AD is issued by the UK CAA acting for and on behalf of the European Aviation Safety Agency as the Primary Aviation Authority (ICAO
Annex 8 Authority of State of Design) for the affected product(s).

Approved by the European Aviation Safety Agency under approval number 2004-3674 on 7 April 2004.

In accordance with Article 9(7)(b) of the Air Navigation Order 2000 as amended the following action required by this Airworthiness Directive
(AD) is mandatory for applicable aircraft registered in the United Kingdom.
No person may operate an aircraft to which an AD applies except in accordance with the requirements of that AD unless otherwise agreed
with the Authority of the State of Registry.


Type Approval Holders Name:                                                   Type/Model Designation(s):

ROLLS-ROYCE PLC                                                               RB211 TRENT 768-60, 772-60, 772B-60

Type Certificate Data Sheet No: 1050

Superseded AD: G-2003-0014


                         ATA 72 – ENGINE – HP COMPRESSOR – TEST/MODIFICATION


Manufacturer(s): Rolls-Royce plc

Applicability: Models RB211 Trent 768-60, 772-60 and 772B-60 engines installed on Airbus A330 aeroplanes.

Reason: There have been a number of low power surges in service on Trent 700 engines. These surges
occurred with the aeroplane on the ground as take-off power was being set or during taxi. The cause of the
surges has been identified as excessive wear on the HPC casing front location feature. This causes increased
HPC tip clearances resulting in loss of surge margin. Engines affected by this problem are also at risk of failure
to respond due to surge on acceleration during descent, prior to flap selection.

Routine ground testing for adequate surge margin will assure safe in-flight operation and embodiment of the
redesigned HPC casing front location feature will remove the problem.

This AD supersedes AD G-2003-0014 by introducing the accomplishment of the engine control software to
automatically maximise HPC surge margin in descent as an Interim Action with an associated compliance date.
The requirements of this AD are otherwise unchanged from those of AD G-2003-0014.

Effective Date: 4 December 2003 (the effective date of AD G-2003-0014).

Compliance/Action:
1) In-Service Test
Carry out a surge test in accordance with Rolls-Royce Alert Service Bulletin RB211-71-AD509 revision 3 or later
CAA approved revision, Section 3 Accomplishment Instructions before the engine exceeds 2000 cycles since
new or 1000 cycles since HP Compressor overhaul, and subsequently at intervals of not more than;
(a) 130 cycles
or
(b) 160 cycles if Rolls-Royce Alert Service Bulletin RB211-73-AE224 original issue or later CAA approved
revision, or later standard of engine control software is embodied.

Note: For the purposes of this Airworthiness Directive, testing carried out in accordance with superseded AD 005-
09-2001 or AD G-2003-0014 (Rolls-Royce Alert Service Bulletin RB211-71-AD509 revision 3, revision 2, revision
1 or original issue) is deemed to be valid.


                                                                                                             continued on next page
1041

G-2004-0010                                                                                        page 2 of 2



2) Interim Action
Fit an EEC incorporating a revised standard of engine control software as specified in Rolls-Royce Alert Service
Bulletin RB211-73-AE224 original issue or later CAA approved revision, or later standard of engine control
software, before 1 July 2005.

3) Terminating Action
Fit redesigned HP compressor stage 1 casing and intermediate case outer location ring in accordance with Rolls-
Royce Service Bulletin RB211-72-D574 original issue or later CAA approved revision, Section 3 Accomplishment
Instructions within 4500 cycles of the Effective Date of this Airworthiness Directive or before 30 June 2012
whichever is the sooner. Incorporation of this modification removes the requirement to carry out 1) In-Service
Test and 2) Interim Action and therefore constitutes the terminating action for this Airworthiness Directive.


Reference Publications: Rolls-Royce Alert Service Bulletin RB211-71-AD509 revision 3 or later approved
issue, Rolls-Royce Alert Service Bulletin RB211-73-AE224 original issue or later CAA approved revision, Rolls-
Royce Service Bulletin RB211-72-D574 original issue or later CAA approved revision may be obtained from
Publication Services, Rolls-Royce plc, PO Box 31, Derby, DE24 8BJ, United Kingdom. Phone: +44 (0) 1332
242424 Fax: +44 (0) 1332 249936.


Remarks: Enquiries regarding this AD may be directed to Civil Aviation Authority, Safety Regulation Group,
Propulsion Department, Aviation House, Gatwick Airport South, West Sussex, RH6 0YR, United Kingdom.
Phone: +44 (0) 1293 573199 Fax: +44 (0) 1293 573979 E-mail: tony.boud@srg.caa.co.uk.
1042

Lufttüchtigkeitsanweisung
                                                                                          LTA-Nr.: D-2003-414R1
                                                                                                             ersetzt: D-2003-414
       Luftfahrt-Bundesamt
                                                                    Datum der Bekanntgabe: 10.06.2004
Muster: Rolls-Royce                                         AD der ausländischen Behörde:
RB211 Trent 800                                             CAA AD G-2004-0008 vom 29.04.2004
Geräte-Nr.:                                                 Technische Mitteilungen des Herstellers:
6334                                                        Rolls-Royce Alert Service Bulletin RB211-72-AD344 Revision 7
                                                            Rolls-Royce Alert Service Bulletin RB211-72-AD347 Revision 6
                                                            Rolls-Royce Service Bulletin RB211-72-D672

  Betroffenes Luftfahrtgerät:
  Rolls-Royce
  RB211 Trent 800

  - Baureihen:            RB211 TRENT 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, 895-17

  - Werk-Nrn.:            Gemäß den Angaben der AD der ausländischen Behörde.

  Betrifft:
  ATA 72 – ENGINE - FAN BLADE - LUBRICATION / MODIFICATION

  Maßnahmen:
  Detaillierte Informationen über die durchzuführenden Maßnahmen sind der oben genannten AD der
  ausländischen Behörde und der oben genannten Technischen Mitteilung des Herstellers zu entnehmen.

  Fristen:
  Alle anzuwendenden Fristen sind der o.g. AD der ausländischen Behörde zu entnehmen.
  Die Laufzeit aller anzuwendenden Fristen beginnt mit dem Datum der Inkraftsetzung der o. g. AD der
  ausländischen Behörde.


  Hinweis:
  Seit dem 28.09.2003 ist die Verordnung (EG) Nr. 1702/2003 der Europäischen Union in Kraft.
  Demnach sind gemäß Artikel 2 dieser Verordnung Lufttüchtigkeitsanweisungen des Entwicklungsstaates
  für ausländische Lfz-Muster unmittelbar gültig. Solange die Europäische Agentur für Flugsicherheit (EASA)
  noch kein eigenes Veröffentlichungsverfahren für Luttüchtigkeitsanweisungen bekanntgegeben hat,
  werden solche ausländischen Lufttüchtigkeitsanweisungen ohne inhaltliche Änderungen per "Deckblatt-
  LTA" durch das Luftfahrt-Bundesamt angeordnet.

  Diese Lufttüchtigkeitsanweisung entspricht hinsichtlich der durchzuführenden Maßnahmen und Fristen der
  CAA AD G-2004-0008 vom 29.04.2004
  Durch die vorgenannten Mängel ist die Lufttüchtigkeit des Luftfahrtgerätes derart beeinträchtigt, daß es nach Ablauf der genannten Fristen
  nur in Betrieb genommen werden darf, wenn die angeordneten Maßnahmen ordnungsgemäß durchgeführt worden sind. Im Interesse der
  Sicherheit des Luftverkehrs, das in diesem Fall das Interesse des Adressaten am Aufschub der angeordneten Maßnahmen überwiegt, ist es
  erforderlich, die sofortige Vollziehung dieser LTA anzuordnen.

  Rechtsbehelfsbelehrung:
  Gegen diese Verfügung kann innerhalb eines Monats nach Bekanntgabe Widerspruch eingelegt werden. Der Widerspruch ist schriftlich oder
  zur Niederschrift beim Luftfahrt-Bundesamt, Hermann-Blenk-Str. 26, 38108 Braunschweig einzulegen.

                                       LTAs werden auch im Internet unter http://www.lba.de publiziert
                                                                     ***




  (LTA-Nr.: D-2003-414 vom 25.12.2003)            Aktenzeichen: (10)M121-502.1/D-2003-414R1                                   Seite 1 von 1
1043

AIRWORTHINESS
                       United Kingdom
                       Civil Aviation Authority                                              DIRECTIVE
                                                                                               AD No: G-2004-0008
                                                                                                  Issue Date: 29 April 2004
This AD is issued by the UK CAA acting for and behalf of the European Aviation Safety Agency as the Primary Aviation Authority (ICAO Annex
8 Authority of State of Design) for the affected product(s).

Approved by the European Aviation Safety Agency under Approval Number 2004-2827 on 23 March 2004.

In accordance with Article 9(7)(b) of the Air Navigation Order 2000 as amended the following action required by this Airworthiness Directive
(AD) is mandatory for applicable aircraft registered in the United Kingdom.
No person may operate an aircraft to which an AD applies except in accordance with the requirements of that AD unless otherwise agreed
with the Authority of the State of Registry.

Type Approval Holders Name:                                                   Type/Model Designation(s):

ROLLS-ROYCE PLC                                                               RB211 TRENT 875-17, 877-17, 884-17,
                                                                              884B-17, 892-17, 892B-17, 895-17
Type Certificate Data Sheet No: 1051

Superseded ADs: 001-02-2001 and G-2003-0015


             ATA 72 – ENGINE – FAN BLADE – INSPECTION/LUBRICATION/MODIFICATION


Manufacturer(s):             Rolls-Royce plc


Applicability: Models RB211 Trent 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, 895-17 engines, fitted
with fan blades to Rolls-Royce Service Bulletin RB211-72-C629 (part numbers; FK30842, FK 30840, FK30838),
RB211-72-C905 (part numbers; FW12960, FW13175, FW12961, FW12962), RB211-72-D390 (part number;
FW18548), OR RB211-72-E044 (part number; FW23552) standards installed on Boeing 777 aeroplanes
certificated in any category.


Reason: There has been one incident of fan blade failure and several instances of fan blade roots found cracked
on Trent 800 engines in service. The cracking has been shown to be the result of significant operating stress
levels and a breakdown of lubrication between the fan blade root and the fan disc slot. Cracking can be avoided
by maintaining lubrication of the fan blade roots. A risk analysis has concluded that mandatory action instructing
fan blade root lubrication is necessary to avoid an unacceptable risk of a multiple fan blade failure, which would
be a potentially hazardous event.

Airworthiness Directive (AD) G-2003-0015 introduced reduced intervals between re-lubrications (iaw Rolls-Royce
Service Bulletin RB211-72-AD347) for SB72-C905, SB72-D390 and SB72-E044 standard fan blades. This
change was prompted by observations of poor blade root condition on service run engines, which showed that
the rate of deterioration of lubrication was higher than previously believed. A Terminating Action for SB72-C629
and SB72-C905 standard of fan blades was also introduced.

This AD (G-2004-0008) supersedes AD’s G-2003-0015 and 001-02-2001, and has been issued for the following
reasons:
   a) To introduce re-lubrication of fan blade roots to Rolls-Royce Service Bulletin RB211-72-C905, 72-D390
       and 72–E044 standards, which have never been removed since delivery of the new engine, to have a
       1200 cycle threshold as stated in Rolls-Royce Service Bulletin RB211-72-AD347 R6.
    b)    To introduce the amended Mandatory repeat inspection requirements of Rolls-Royce Service Bulletin
          RB211-72-AD344 R7, applicable to Rolls-Royce Service Bulletin RB211-72-C629 and –C905 standard
          fan blades, thereby superseding the requirements of AD 001-02-2001.


                                                                                                               continued on next page
1044

G-2004-0008                                                                                          page 2 of 4



Effective Date: 12 May 2004

Compliance/Action:

1)   Inspection of Fan Blade Root (in accordance with R-R Alert Service Bulletin RB211-72-AD344 R7)

     Fan blades to Rolls-Royce Service Bulletin RB211-72-C629 or RB211-72-C905 standards;
     Inspect according to aeroplane type and engine rating combinations, on or before the threshold lives and
     subsequent repeat intervals not exceeding the intervals specified in Tables 1,2,3 and 4 below. Note that fan
     blades to Rolls-Royce Service Bulletin RB211-72-D390 (full form root profile) and RB211-72-D672 (laser
     shock peen) are not subject to this inspection. Fan blades are to be inspected in accordance with Rolls-
     Royce Alert Service Bulletin RB211-AD344 Revision 7, Section 3 Accomplishment Instructions.

     TABLE 1 BLADES NOT FEATURING SB72-C905

      B777               GROSS WEIGHT        ENGINE                              INSPECTION
      AEROPLANE          (1000 lbs)          RATING                 THRESHOLD                   REPEAT
      CATEGORY                                                       (CYCLES)                  (CYCLES)
      (1A)                      660          892, 884B
      -300                     632,5                                     600                       80
      (1B)                      656          895
      -200ER
      (2)                       648                                     1200                      100
      -200ER                                 892,892B
                               632,5
      (3A)                      580          892, 884B                  2000                      600
       -300
      (3B)                      555          884                        2000                      600
      -200ER
      (3C)                      545          877                        2000                      600
      -200                      535          875



     TABLE 2 BLADES NOT FEATURING SB72-C905 BUT RELUBRICATED AT 600 CYCLES FREQUENCY OR LESS

      B777               GROSS WEIGHT        ENGINE                              INSPECTION
      AEROPLANE          (1000 lbs)          RATING                 THRESHOLD                   REPEAT
      CATEGORY                                                       (CYCLES)                  (CYCLES)
      (1A)                      660          892, 884B
       -300                    632,5                                     600                       80
      (1B)                      656          895
      -200ER
      (2)                       648          892,892B                   1200                      100
      -200ER
                               632,5


      (3A)                      580          892, 884B                  2400                      600
       -300
      (3B)                      555          884                        2400                      600
      -200ER
      (3C)                      545          877                        2400                      600
      -200                      535          875




                                                                                         continued on next page
1045

G-2004-0008                                                                                            page 3 of 4


TABLE 3 BLADES WHICH (a) INCLUDED SB72-C905 FROM NEW OR (b) WERE REWORKED TO SB72-
C905 AT LESS THAN 600 CYCLES SINCE NEW OR PREVIOUS REWORK TO SB72-C629 OR (c)
REWORKED TO SB72-C905 WITH VERIFIABLE RE-LUBRICATION AT INTERVALS NOT EXCEEDING 600
CYCLES

 B777 AEROPLANE            GROSS WEIGHT         ENGINE                              INSPECTION
 CATEGORY                  (1000 lbs)           RATING                THRESHOLD                   REPEAT
                                                                       (CYCLES)                  (CYCLES)
 (1A)                              660          892, 884B
 -300                             632,5                                    600                      100
 (1B)                              656          895
 -200ER
 (2)                               648          892,892B                  1200                      125
 -200ER
                                  632,5
 (3A)                              580          892, 884B                 2400                     600**
  -300
 (3B)                              555          884                       2400                     600**
 -200ER
 (3C)                              545          877                       2400                     600**
 -200
                                   535          875


TABLE 4 BLADES REWORKED TO SB72-C905 AT GREATER THAN 600 CYCLES SINCE NEW OR PREVIOUS RE-
WORK TO SB72-C629

 B777 AEROPLANE            GROSS WEIGHT         ENGINE                              INSPECTION
 CATEGORY                  (1000 lbs)           RATING                THRESHOLD                   REPEAT
                                                                       (CYCLES)                  (CYCLES)
 (1A)                              660          892, 884B
 -300                             632,5                                    600                      100
 (1B)                              656          895
 -200ER
 (2)                               648          892,892B                  1200                      125
 -200ER
                                  632,5
 (3A)                              580          892, 884B                 2000                      600
  -300
 (3B)                              555          884                       2000                      600
 -200ER
 (3C)                              545          877                       2000                      600
 -200
                                   535          875


2)     Re-lubricate fan blade root (in accordance with R-R Alert Service Bulletin RB211-72-AD347 R6)
     a) Fan blades to Rolls-Royce Service Bulletin RB211-72-C629, -C905, -D390, and -E044 standards;
       Re-lubricate fan blade roots in accordance with Rolls-Royce Alert Service Bulletin RB211-72-AD347
       Revision 6, Section 3 Accomplishment Instructions prior to achieving 600 cycles in service since new or last
       re-lubrication. Subsequently, re-lubricate at repeat intervals not exceeding 600 cycles in service.
     b) Fan blades to Rolls-Royce Service Bulletin RB211-72-C905, -D390, and -E044 standards which have never
        been removed from the engine since delivery of the new engine;
       Re-lubricate fan blade roots in accordance with Rolls-Royce Alert Service Bulletin RB211-72-AD347 revision
       6, section 3 Accomplishment Instructions on first removal or prior to achieving 1200 cycles in service since
       new. Subsequently, re-lubricate at repeat intervals not exceeding 600 cycles in service.
     c) Fan blades to Rolls-Royce Service Bulletin RB211-72-C905, -D390, and -E044 standards with lives in
        excess of 400 cycles since new (that are not covered by paragraph b), above) or since last re-lubrication at
        the Effective Date of this AD, a one-off increased interval is permitted as follows;
       Re-lubricate fan blade roots in accordance with Rolls-Royce Alert Service Bulletin RB211-72-AD347
       Revision 6, section 3 Accomplishment Instructions prior to achieving a further 200 cycles in service, but not
       to exceed 1200 cycles since new or since last re-lubrication. Subsequently, re-lubricate at repeat intervals
       not exceeding 600 cycles in service.
1046

continued on next page

G-2004-0008                                                                                          page 4 of 4



3)   Terminating Action (in accordance with Rolls-Royce Service Bulletin RB211-72-D672)

     Fan blades to Rolls-Royce Service Bulletin RB211-72-C629 and RB211-72-C905;
     Apply laser shock peen, Metco 58 and dry film lubricant (DFL) in accordance with Rolls-Royce Service
     Bulletin RB211-72-D672 Initial Issue, Section 3 Accomplishment Instructions at next shop visit where the fan
     blade is refurbished or overhauled, or prior to 31 December 2009, whichever occurs first. Incorporation of
     this modification removes the Mandatory requirements to carry out Part 1, root inspection, and Part 2, root
     re-lubrication, (refer to Remarks Section for details) detailed in the Compliance/Action section of this
     Airworthiness Directive, and therefore constitutes the terminating action for this AD.

Note: There is currently no terminating action for fan blades to Rolls-Royce Service Bulletins RB211-72-D390
      and RB211-72-E044 standards.
Note: Previous compliance with the inspection and lubrication tasks of ADs G-2003-0015, 001-03-2001 and 001-
      02-2001 are, for the purposes of this Airworthiness Directive, deemed to be equivalent inspection and
      lubrication tasks.




Reference Publications: Rolls-Royce Alert Service Bulletins RB211-72-AD344 Revision 7 and RB211-72-
AD347 Revision 6, and Rolls-Royce Service Bulletin RB211-72-D672 initial issue, may be obtained from
Publication Services, Rolls-Royce plc. PO Box 31, Derby, DE24 8BJ, United Kingdom. Phone: +44 (0) 1332
242424      Fax: +44 (0) 01332 249936
Note: Later EASA approved Service Bulletin issues than the issues quoted within are also considered to be
      acceptable to meet the requirements of this Airworthiness Directive.


Remarks: Note that while the Terminating Action terminates the requirements of this AD, the re-lubrication
remains a recommended action by the manufacturer for SB72-D672 standard fan blades.

The fan blade part numbers associated with the Service Bulletin standards addressed above are as follows;
 SB 72-C629 (Fan blade      SB 72-C905 (Fan blade        SB 72-D390 (Full form      SB 72-E044 (Fan blade root
 cutback root profile)      Metco58 anti-fret coating)   root profile fan blades)   revised shear key slot)
 FK30838                    FW12960                      FW18548                    FW23552
 FK30840                    FW12961
 FK30842                    FW12962
                            FW13175

Enquiries regarding this AD should be directed to Civil Aviation Authority, Safety Regulation Group, Propulsion
Department, Aviation House, Gatwick Airport South, West Sussex, RH6 0YR, United Kingdom. Phone: +44 (0)
1293 573199 Fax: +44 (0)1293 573979 E-mail: pete.woollacott@srg.caa.co.uk.
1047

Lufttüchtigkeitsanweisung
                                                                                          LTA-Nr.: D-2004-111R1
                                                                                                             ersetzt: D-2004-111
       Luftfahrt-Bundesamt
                                                                    Datum der Bekanntgabe: 10.06.2004
Muster: Eurocopter                                          AD der ausländischen Behörde:
AS 355                                                      DGAC AD F-2002-280-068R1 vom 17.03.2004
Geräte-Nr.:                                                 Technische Mitteilungen des Herstellers:
3056                                                        Eurocopter AS 355 Alert Service Bulletin No. 34.00.09

  Betroffenes Luftfahrtgerät:
  Eurocopter
  AS 355

  - Baureihen:            AS 355 E, F, F1, F2 und N

  - Werk-Nrn.:            alle, ausgestattet mit HSI KI 525 A

  Betrifft:
  Navigation (''navigation - horizontal situation indicator KI 525 A'')

  Maßnahmen:
  Detaillierte Informationen über die durchzuführenden Maßnahmen sind der oben genannten AD der
  ausländischen Behörde und der oben genannten Technischen Mitteilung des Herstellers zu entnehmen.

  Fristen:
  Alle anzuwendenden Fristen sind der o.g. AD der ausländischen Behörde zu entnehmen.
  Die Laufzeit aller anzuwendenden Fristen beginnt mit dem Datum der Inkraftsetzung der o. g. AD der
  ausländischen Behörde.


  Hinweis:
  Seit dem 28.09.2003 ist die Verordnung (EG) Nr. 1702/2003 der Europäischen Union in Kraft.
  Demnach sind gemäß Artikel 2 dieser Verordnung Lufttüchtigkeitsanweisungen des Entwicklungsstaates für
  ausländische Lfz-Muster unmittelbar gültig. Solange die Europäische Agentur für Flugsicherheit (EASA) noch
  kein eigenes Veröffentlichungsverfahren für Luttüchtigkeitsanweisungen bekanntgegeben hat, werden solche
  ausländischen Lufttüchtigkeitsanweisungen ohne inhaltliche Änderungen per "Deckblatt-LTA" durch das
  Luftfahrt-Bundesamt angeordnet.

  Diese Lufttüchtigkeitsanweisung entspricht hinsichtlich der durchzuführenden Maßnahmen und Fristen der
  DGAC AD F-2002-280-068R1 vom 17.03.2004
  Durch die vorgenannten Mängel ist die Lufttüchtigkeit des Luftfahrtgerätes derart beeinträchtigt, daß es nach Ablauf der genannten Fristen
  nur in Betrieb genommen werden darf, wenn die angeordneten Maßnahmen ordnungsgemäß durchgeführt worden sind. Im Interesse der
  Sicherheit des Luftverkehrs, das in diesem Fall das Interesse des Adressaten am Aufschub der angeordneten Maßnahmen überwiegt, ist es
  erforderlich, die sofortige Vollziehung dieser LTA anzuordnen.

  Rechtsbehelfsbelehrung:
  Gegen diese Verfügung kann innerhalb eines Monats nach Bekanntgabe Widerspruch eingelegt werden. Der Widerspruch ist schriftlich oder
  zur Niederschrift beim Luftfahrt-Bundesamt, Hermann-Blenk-Str. 26, 38108 Braunschweig einzulegen.

                                       LTAs werden auch im Internet unter http://www.lba.de publiziert
                                                                     ***




  (LTA-Nr.: D-2004-111 vom 18.03.2004)            Aktenzeichen: (02)M123-502.1/D-2004-111R1                                   Seite 1 von 1
1048

D-2004-111R1

                         AIRWORTHINESS DIRECTIVE                                   Distribution:                  Issue date:                Page :

                                                                                        A                      March 17, 2004                  1/2
                                No F-2002-280-068 R1

       Direction      This Airworthiness Directive is published by the DGAC :                      Translation of « Consigne de Navigabilité » of same
       générale                                                                                                             number.
                               on behalf of EASA, the Primary Airworthiness Authority for the
       de                X     affected product.
                                                                                                    In case of difficulty, reference should be made to
       l’aviation                                                                                                    the French issue.
       civile                  as the Registration Airworthiness Authority for the affected
       France                  aircraft..


       GSAC                           No person may operate an aircraft to which an Airworthiness Directive applies,
       publication                     except in accordance with the requirements of that Airworthiness Directive,
                                           unless otherwise agreed with the Authority of the State of Registry.

       Corresponding foreign Airworthiness Directive(s):                Airworthiness Directive(s) replaced:
       Not applicable                                                   2002-280-068 original issue
       Person in charge of airworthiness:                               Type(s):
       EUROCOPTER                                                       AS 355 helicopters

       Type certificate(s) No. 168
       TCDS No 168
       ATA chapter:            Subject:

                34             Navigation - Horizontal situation indicator KI 525A


         1. EFFECTIVITY:

              AS 355 helicopter versions E, F, F1, F2 and N, equipped with HSI KI 525A.


         2. REASONS:

              This Airworthiness Directive (AD) is issued following the discovery of incorrect installation of HSI KI 525A,
              part number 066-3046-07 (non-compliance with equipment manufacturer ALLIEDSIGNAL Service Bulletin
              No. 341), which might result in navigation errors.

              Revision 1 of this AD covers the conversion of EUROCOPTER AS 355 Alert Telex No. 34.00.09 into an
              Alert Service Bulletin (ASB) with the same reference number, with no change to the technical content.


         3. MANDATORY ACTIONS AND COMPLIANCE TIMES:

              The following measures were rendered mandatory from the effective date of the original issue of this AD:

              3.1. No later than within the next 100 flying hours or within one month (whichever limit is reached first):

                     a) Check the part number of HSI KI 525A installed on aircraft.

                     b) If the part number read is 066-3046-07, comply with the instructions given in paragraph 2.B of the
                          referenced ASB.

                     c) If the part number read is different from 066-3046-07, leave as is.

              3.2. Before installing an HSI KI 525A, part number 066-3046-07, in place of an HSI KI 525A, part numbers
                   066-3046-00, -01, -04 or -05, on an aircraft, comply with the instructions defined in paragraph 2.B of
                   the referenced ASB.




n/DJ
1049

D-2004-111R1

          AIRWORTHINESS DIRECTIVE                     Distribution:            Issue date:             Page:

                No F-2002-280-068 R1                       A               March 17, 2004              2/2



4. REFERENCE PUBLICATION:

  EUROCOPTER AS 355 Alert Service Bulletin No. 34.00.09
  (Any subsequent approved revision of this ASB is acceptable).


5. EFFECTIVE DATES :

  Original issue :   June 08, 2002
  Revision 1     :   March 27, 2004.


6. REMARK:

  For any questions concerning the technical content of the requirements in this AD, please contact:

  EUROCOPTER (STXI) – Aéroport de Marseille Provence, 13725 Marignane Cedex – France
  Phone: +33 (0)4 42 85 97 97 – Fax: +33 (0)4 42 85 99 66
  E-mail: Directive.technical-support@eurocopter.com


7. APPROVAL:

  This Revision AD is approved under EASA reference No 2004-2116 dated March 09, 2004.
1050

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