SDR AALA201802229035

Service difficulty report · Apu · Airbus A321231

Difficulty date: February 21, 2018
Submitted: February 23, 2018
Operation: Air carrier
Aircraft: N155NN
Make and model: Airbus A321231
Aircraft serial: 6940
Aircraft time: 7,086 hours, 2,676 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Apu
Condition: Faulted
Stage of operation: NR
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

FLIGHT ATTENDANT REPORTED SMOKE IN THE CABIN. APU BLEED WAS TURNED OFF, SMOKE DISSIPATED. APU BLEED WAS TURNED ON AND FAULTED. AIRCRAFT WAS GROUNDED. ACCOMPLISHED APU BLEED TEST IAW TSM 36-12-00. TEST PASSED, OPS CHECKED GOOD. OPS CHECKED BOTH A/C PACKS, NO FAULTS NOTED. AIRCRAFT FOGGED DURING PACK OPERATION, NORMAL IAW TSM 21-00-00-801-804-A.

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