SDR UIEA2018042000748

Service difficulty report · Module · Boeing 76733A

Difficulty date: April 20, 2018
Submitted: April 23, 2018
Operation: Air carrier
Aircraft: N1997A
Make and model: Boeing 76733A
Aircraft serial: 27310
Aircraft time: 93,408 hours, 18,593 cycles
System (JASC): 4920 · APU Core Engine
Part: Module
Part number: 38850811
Part serial: R20131609
Condition: Malfunctioned
Location: Apu
Stage of operation: LD
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

APU FAULT MESSAGE DISPLAYED. INSPECTED APU INLET SCREEN, NO FINDINGS, CHECKED PRESSURE SUPPLY TUBE FOR THE SURGE CONTROL VALVE, NO FINDINGS IAW AMM 49-00-00, REMOVED AND REPLACED THE APU FLOW SENSING MODULE IAW AMM 49-53-08, OPS CHECKED GOOD.

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