SDR UIEA2019092605579

Service difficulty report · Oil System · Boeing 7673Y0

Difficulty date: September 26, 2019
Submitted: September 27, 2019
Operation: Air carrier
Aircraft: N1181A
Make and model: Boeing 7673Y0
Aircraft serial: 26206
Aircraft time: 86,269 hours, 21,435 cycles
System (JASC): 4990 · APU Oil System
Part: Oil System
Condition: Low
Location: Apu
Stage of operation: LD
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

APU WOULD NOT START AFTER LANDING. 2 ATTEMPTS, APU FAULT BOTH TIMES.(<P>PERFORMED BITE TEST OF APU ECU. LAST RUN, LOW OIL PRESS MESSAGE. CHECKED APU OIL LEVEL, FOUND TO BE LOW. SERVICED OIL IAW AMM 12-13-04 TO FULL. ECU BITE TEST IAW AMM 49-61-05. RAN APU, EXTERNAL LEAK CHECK OK, AND SUBSEQUENT BITE TEST OK.</P>)

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