Service difficulty report · Apu · Boeing 7673S2F

Difficulty date
October 19, 2022
Submitted
November 14, 2022
Operation
Air carrier
Aircraft
N101FE
Make and model
Boeing 7673S2F
Aircraft serial
42706
Aircraft time
17,716 hours, 7,191 cycles
Part
Apu
Part number
380029812
Part serial
P1252
Condition
Inoperative
Location
Apu Bay
Part time
26,921 hours, 25,076 cycles
Stage of operation
TO
How discovered
V
Nature of condition
P
Precautionary procedure
C

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

What was found

APU SHUTDOWN- FAULT LIGHT AFTER T.O. APPROXIMATELY 2000 FEET. APU IS REQUIRED PER MEL 24-00-01-01-B. ATTEMPT RESTART AS PER QRH. RESTART SUCCESSFUL. ON ARRIVAL APU SHUTDOWN AND FAULT INDICATED AGAIN. PERFORMED APU BITE PROCEDURE IAW FIM 49-11 FAULT TREE 987 SHOWS HIGH OIL TEMP. TROUBLESHOT IAW FIM 49-11 FAULT TREE 996 AND RESET APU ECU. RAN APU PER B767 JRH FOR ONE HOUR FOUND NO FAULT. APU STARTED NML AND ALL PARMETERS NML. ACFT OK FOR SERVICE.

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