Service difficulty report · Unknown · Boeing 7379

Difficulty date
June 27, 2023
Submitted
June 29, 2023
Operation
Air carrier
Aircraft
N973AK
Make and model
Boeing 7379
Aircraft serial
43346
Aircraft time
4,906 hours, 1,397 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

PERFORMING T/C 05-020-01 FOUND ENG # 2 EEC C1 SMT WITH CORRELATED FAULT CODE 73-43983 "ELECTRONIC OVERSPEED THRUST CONTROL MALFUNCTION ACCOMADATION TEST FAILED (SINGLE CHANNEL) CHANNEL A. FAULT OCCURRED ON LEG-7, ENG START 25 JUN 2023. GROUNDED - YES. PERFORMED IFIM TASK G73-20-00-810-927, DURING INITIAL EVALUATION MAINT MESSAGE DOES NOT SHOW, PERFORMED TEST NO.32 ENGINE IDLE SYSTEM TEST, OPS NORMAL TEST PASSED. FAULT CLEARED AND DID NOT RETURN. OK FOR CONTINUED SERVICE.

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