SDR HALA2013122000180

Service difficulty report · Pressure Switch · Boeing 7673CB

Difficulty date: December 20, 2013
Submitted: December 23, 2013
Operation: Air carrier
Aircraft: N590HA
Make and model: Boeing 7673CB
Aircraft serial: 33467
Aircraft time: 43,631 hours, 7,837 cycles
System (JASC): 4950 · APU Bleed Air System
Part: Pressure Switch
Part number: 5198588
Part serial: 5935
Condition: Malfunctioned
Location: Apu
Part time: 413 hours, 58 cycles
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

AFTER TAKEOFF, APU FAULT LIGHT ILLUMINATED, APU SHUTDOWN, COMPLIED WITH QRH PROCEDURE. APU WOULD NOT RESTART. R & R APU GEN OIL PRESSURE DIFFERENTAL PRESSURE SWITCH IAW AMM 49-27-16. OPS, LEAK AND SECURITY CHECK GOOD. OK FOR SERVICE. PLACARD REMOVED, MIC SHEET CLEARED.

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