SDR P5CA2016042100083

Service difficulty report · Warning Message · Boeing 7673Y0

Difficulty date: April 19, 2016
Submitted: April 22, 2016
Operation: Air carrier
Aircraft: N642GT
Make and model: Boeing 7673Y0
Aircraft serial: 26207
Aircraft time: 77,515 hours, 19,480 cycles
System (JASC): 2421 · AC Generator-Alternator
Part: Warning Message
Condition: False Activation
Location: Apu Gen
Stage of operation: TX
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

APU GENERATOR FELL OFF LINE TWICE WHEN PRESSURIZING SYS. PERFORMED APU OPS CHECK IAW AMM 49-11-00. OPS CHECKED GOOD AT THIS TIME, LP 800458-3. CW APU ECU SELF AND BITE TEST IAW AMM 49-61-05, NO FAULTS NOTED. CW BPCU BITE TEST IAW AMM 24-22-00 NO FAULTS NOTED. PERFORMED OPS CHECK OF APU GENERATOR, NO FAULTS NOTED IAW AMM 24-21-00. ACFT OK FOR CONTINUED ETOPS SERVICE.

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