SDR CALA2025121012017

Service difficulty report · Warning Message · Airbus A320232

Difficulty date: December 10, 2025
Submitted: December 11, 2025
Operation: Air carrier
Aircraft: N490UA
Make and model: Airbus A320232
Aircraft serial: 1728
Aircraft time: 71,686 hours, 31,466 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Warning Message
Condition: False Activation
Stage of operation: IN
How discovered: V
Nature of condition: N
Precautionary procedure: K

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

What was found

ECAM WARNING, APU EMERGENCY SHUTDOWN. THIS MESSAGE IS GENERATED WHEN THE EMER BUTTON AT THE 108VU (EXT PWR PLUG IN) IS PUSHED OR MALFUNCTIONED. T/S ECAM WARNING APU EMERGENCY SHUTDOWN ON GROUND IAW 49-00-00-810-923-A. RESET C/BS, OPS TESTS PASSED.

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