SDR CALA2025080607375

Service difficulty report · Warning Message · Airbus A319132

Difficulty date: August 3, 2025
Submitted: August 6, 2025
Operation: Air carrier
Aircraft: N889UA
Make and model: Airbus A319132
Aircraft serial: 2667
Aircraft time: 53,804 hours, 27,837 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Warning Message
Condition: False Activation
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

CLASSII APU MSG CLEARED WHEN APU MASTER SWITCH ON. FOUND MSG, FUEL LOW PRESS LOW FUEL PRESS SW (5030QM) ON LAST LEG REP. DUE TO HISTORY REQUEST MEL 4900A OK TO MEL COMPLIED WITH MEL 4900A DM MX NOTE FIN 5030QM IS SENSOR P/N FRH100014A (18-2822-3-0017). PERFORM REF LP 5761116, APU SELF TEST GOOD AMM 49-00-00-710-005-A.

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