Service difficulty report · Engine · Airbus A320232

Difficulty date
September 14, 2006
Submitted
September 19, 2006
Operation
Air carrier
Aircraft
N464UA
Make and model
Airbus A320232
Aircraft serial
1290
Aircraft time
21,894 hours, 8,044 cycles
Engine
Iae V2527A5
Engine time
39,722 hours, 14,184 cycles
Part
Engine
Condition
Shutdown
Location
Nr 1
Stage of operation
AP
How discovered
O
Nature of condition
J, Y
Precautionary procedure
O

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

What was found

CREW REPORTED NR 1 ENGINE AUTO SHUT DOWN ON APPROACH. POST FLIGHT SHOWS FUEL CTL FAULT. PERFORMED TROUBLE SHOOTING. DID NOT FIND FAULT CODE. FOUND CHANNEL (A) CANNON PLUG TO FMU, LOOSE NOT COMPLETELY INSERTED INTO CONNECTOR. REPLACED FMU. ACCOMPLISHED POWER ASSURANCE RUN ON NR 1 ENGINE. PARAMETERS WITHIN LIMITS. FMU CHANNEL A FAULT STARTED HITTING ON 9/6/06. IN FLIGHT SHUT DOWN ON THE 14TH. THE LOOSE CONNECTOR CAUSED CHANNEL "A" LOSS FOLLOW BY LOSS OF CHANNEL "B" OF THE FMU. THE LOGIC FOR LOSS OF THE FMU IS TO FAILSAFE TO MINIMUM FLOW, THIS WILL BE VERIFIED WITH THE FLIGHT DATA AND FMU INVESTIGATION.

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