Service difficulty report · Computer · Airbus A300F4605R

Difficulty date
March 11, 2021
Submitted
March 12, 2021
Operation
Air carrier
Aircraft
N657FE
Make and model
Airbus A300F4605R
Aircraft serial
748
Aircraft time
36,686 hours, 19,653 cycles
Part
Computer
Part number
B471AAM8
Part serial
477
Condition
Malfunctioned
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON DEPARTURE FROM KMEM ECAM DISPLAYED PITCH TRIM 2 FAULT, ATS LEVER TRIPPED , F/O LOST HIS FD. PERFORMED ECAM PROC AND COULD NOT RESET PITCH TRIM NR 2 ( NR1 PITCH TRIM ALREADY DEFERRED) OR ATS LEVER. PERFORMED QRH PROC. DECLARED EMERGENCY AND RETURNED TO KMEM. LAST FLIGHT LEG FOUND 3 SEPARATE FAULTS, ALL WITH NOSE GEAR RELAY AS PRIMARY SUSPECTED FAULT. PER TSM ASM 22-20-00, THE FAC, FCC, AND TCC ALL HARE THE NOSE GEAR DISCRETE FROM THIS RELAY. THIS WOULD EXPLAIN THE PITCH TRIM 2 FAULT, THE ATS LEVER TRIPPING, AND THE LOSS OF F/D. REMOVED AND REPLACED 96GB (NR 2 NOSE GEAR RELAY). REF: AWM 32-62-08 AND TSM 22-22-00. PERFORMED AFS/LAND TEST REF AMM 22-40-00-05. ALL CHECKS INCLUDING FLIGHT DIRECTOR, PITCH TRIM, AND AUTOTHROTTLE WERE GOOD.

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