SDR HALA2013013100014

Service difficulty report · Connector · Boeing 7673G5

Difficulty date: January 31, 2013
Submitted: February 1, 2013
Operation: Air carrier
Aircraft: N586HA
Make and model: Boeing 7673G5
Aircraft serial: 24259
Aircraft time: 101,816 hours, 19,057 cycles
System (JASC): 4997 · APU System Wiring
Part: Connector
Condition: Dirty
Location: Apu
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

AIR TURNBACK, APU AUTO SHUTDOWN, APU VERIFICATION UNSATISFACTORY. ECU BIT INDICATES "HIGH TEMP" WITH MINI FLAGS 11, 45 & 48. PERFORMED MEGGER TEST FOUND NR 2 THERMOCOUPLE CIRCUIT FAULTY WITH HIGH RESISTANCE. ISOLATED FAULT ON CONNECTOR D4082J, PIN 29 AND 30 CLEANED CONNECTOR CIRCUIT TEST NORMAL. ACCESS PANELS CLOSED. PERFORMED OPS CHECK OF APU IAW AMM 49. TEST NORMAL.

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