SDR UIEA2019082605293

Service difficulty report · Ecu · Boeing 76731K

Difficulty date: August 26, 2019
Submitted: August 26, 2019
Operation: Air carrier
Aircraft: N1489A
Make and model: Boeing 76731K
Aircraft serial: 27206
Aircraft time: 105,534 hours, 20,623 cycles
System (JASC): 4940 · APU Start/Ignition System
Part: Ecu
Part number: 211734220
Part serial: 18825
Condition: Malfunctioned
Location: Apu
Stage of operation: CR
How discovered: O
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

APU RELIABILITY COLD START, 3 ATTEMPTS UNSUCCESSFUL. PERFORMED APU ECU BITE CHECK, FAULTED ECU. REMOVED AND REPLACED APU ECU WITH NEW. OPS CHECKED GOOD, PERFORMED 3 SUCCESSFUL STARTS. NO DEFECTS NOTED AT THIS TIME IAW AMM 49-61-05 AND AMM 49-11-00.

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