SDR IPXA2023011659892

Service difficulty report · Ignition Sys · Boeing 76734AF

Difficulty date: January 15, 2023
Submitted: January 16, 2023
Operation: Air carrier
Aircraft: N352UP
Make and model: Boeing 76734AF
Aircraft serial: 37875
Aircraft time: 26,065 hours, 9,347 cycles
System (JASC): 4940 · APU Start/Ignition System
Part: Ignition Sys
Condition: Faulted
Location: Apu
Stage of operation: TX
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

INSPECTION TYPE: ETOP, APU FAULT AFTER LANDING ICNPERFORMED ECU BITE TEST PER FIM TASK 49-11-00-802-002, FOUND "IGN UNIT" FAULT. CYCLED APU PRIME CONTROL C/B, THEN ECU BITE TEST & APU OPS CHECKED OK PER AMM 49-61-00 & 49-21-00. A/C OK FOR SVC

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