Suspected unnaproved PARTs

The submitters of the following Service Difficulty Reports (SDRs), received during the previous quarter, indicated that an unapproved part (SUP) was suspected. The list is provided here for information only and should not be construed as an identification of confirmed unapproved parts. In Canada, SUPs should be reported on a regular SDR form, indicating your suspicion of an unapproved part.

 NOTE:  Feed Back Issue 2/2003 contained errors in the Suspected Unapproved Parts. Below is the revised list that contains data related to Quarters 2 and 3.

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 MAKE/MODEL:  AEROSPATIALE AS 350A PART NAME:  BEARING PART NUMBER:  BOGUS PART CONDITION:  SEIZED SDR #:  20030319003

 DESCRIPTION  

THE DRIVE END BEARING SEIZED DURING FLIGHT AND SPUN IN THE BEARING LINER. THIS WORE THE OUTER DIAMETER OF THE BEARING RACE DOWN TO THE POINT THAT THE ARMATURE BEGAN RUBBING ON THE STATOR. THIS WEAR CONTINUED UNTIL SUFFICIENT TORQUE BUILT UP TO SHEAR THE DRIVE SHAFT AT THE QUILL SECTION. A TEARDOWN OF THE UNIT REVEALED THAT THE BEARINGS INSTALLED ARE BOGUS PARTS. THE CORRECT PART IS MADE BY THE OEM, APC, AND IS P/N 150SG1052B. THE BEARINGS FOUND WERE MARED "JAF 6203RS JAPAN". THE SEIZED BEARING SHED ITS SEALS, EXPOSING THE BALLS. IT IS OF DIFFERENT DESIGN COMPARED THE CORRECT PART. THE BOGUS BEARINGS HAVE TWO ROWS OF EIGHT BALLS, WHILE THE OEM PART HAS ONE ROW OF EIGHT BALLS. THIS UNIT WAS LAST OVERHAULED, ACCORDING TO THE COMPONENT HISTORY CARD, PRIOR TO MAY 1998. PER THE OWNER, THE UNIT WAS INSTALLED ON AN AIRCRAFT WHEN IT WAS IMPORTED, AND IT IS LIKELY THAT THE OVERHAUL WAS DONE IN PORTUGAL. THE BEARINGS ARE BEING HELD IN QUARANTINE PENDING TRANSPORT CANADA INSPECTION.

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 MAKE/MODEL:  BOEING 737 217 SDR #:  20030321011

 DESCRIPTION  

THE UNSCHEDULED REMOVAL OF A B737 RUDDER PCU WHICH OCCURRED ON FEB 25/26 2003 IN YVR WAS IN RESPONSE TO A REQUEST FROM MATERIAL SERVICES BASED ON A FAA UNAPPROVED PARTS NOTIFICATION NO 2001-0089 DATED AUG 12,2002. THE SUSPECT PCU P/N 1U1150-3 S/N 737 WAS LISTED IN THE NOTIFICATION. -.AIR CANADA SHOULD HAVE BEEN NOTIFIED OF THE SUSPECT UNITS BY TRANSPORT CANADA REF THE BAA CHAPTER 5 ITEM 510 511 513. -. THE REMOVAL OF THE RUDDER PCU P/N 1U1150-3 S/N 0737 DOES CROSS REFERENCE TO FTN ZKMZP8 AND DOES INDICATE THAT IT WAS INSTALLED ON A/C 511, BUT THE SEPTRE HISTORY INDICATES THE UNIT WAS REPAIRED ON MARCH 13, 2000. THIS INFORMATION WAS CONFIRMED IN ARTOS. THE FTN HISTORY IN ARTOS INDICATES THAT THE UNIT WAS INSTALLED ON A/C 511 ON MARCH 21, 2000 UNTIL THE PRESENT DATE.THE FAA NOTICE INDICATES THAT THE SUSPECT UNITS WERE IMPROPERLY OVERHAULED DURING A PERIOD OF JANUARY 3-8 2001. -. THE REPAIR STATIONS AND VENDORS MENTIONED IN THE NOTIFICATION ARE NOT ON OUR APPROVED LIST. ALSO OUR SHOP REPORT ESTABLISHED THAT THE PART HAD MFG CODES WE ARE PRESUMING THAT THE PART LISTED ON THE FAA LISTING HAS BE FORGED.

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 MAKE/MODEL:  CESSNA 150 PART NAME:  ALTERNATOR PART NUMBER:  DOFF10300F  PART CONDITION:  FAILED SDR #:  220030120006

 DESCRIPTION  

ON OVERHAUL OF THE ALTERNATOR THE RECTIFIER P/N ES4113, BRUSH P/N E4118, AND BEARING P/N ES4104. ALL THESE PART NUMBERS ARE NON-APPROVED. ALTERNATOR BUILD UP CARRIED OUT WITH APPROVED PARTS.

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 MAKE/MODEL:  DE HAVILLAND DHC-2MK1 PART NAME:  ELEVATOR  PART NUMBER:  C2T29A  PART CONDITION:  FAILED SDR #:  20030131001

 DESCRIPTION  

PART WAS ACTUALLY REMOVED FROM STOCK FOR INSTALLATION BUT WOULD NOT FIT.

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 MAKE/MODEL:  EUROCOPTER BO105 S CDN BS PART NAME: BOLT  PART NUMBER: LN93556X32  PART CONDITION: TOO LONG SDR #: 20030605012

 DESCRIPTION 

DURING INSPECTION TO COMPLY WITH AIRCRAFT SERVICES CAMPAIGN NOTICE 351-73-20-12 THE BOLT CONNECTING THE N2 CONTROL CABLES TO THE N2 LEVER ASSEMBLY WAS FOUND TO BE TOO LONG. THE EXTRA LENGTH HAD BEEN COMPENSATED FOR WITH THE USE OF EXTRA WASHERS UNDER THE BOLT HEAD. THE INCORRECT BOLT WAS REMOVED AND CORRECT BOLT P/N LN9355-6X32 INSTALLED AND TORQUE SEAL APPLIED TO THE END OF THE BOLT TO NUT-PLATE CONNECTION.