SDR GTIA2025103039159

Service difficulty report · A/C Pack · Airbus A321271NX

Difficulty date: October 27, 2025
Submitted: October 30, 2025
Operation: Air carrier
Aircraft: N702NK
Make and model: Airbus A321271NX
Aircraft serial: 11328
Aircraft time: 7,836 hours, 3,072 cycles
System (JASC): 2150 · Cabin Cooling System
Part: A/C Pack
Condition: Odor
Location: Nr 2
Stage of operation: DE
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

DURING DESCENT, FA REPORTED FUME EVENT STRONG SOCK/MILDEW SMELL. PERFORMED UNKNOWN FUME ABN PROC, SUSPECT PACK #2.-REF TSM 05-50-00-810-831-A, PACK #2 CONFIRMED AS THE CAUSE OF ODOR. PERFORMED TYPE 3 LEVEL A DECONTAMINATION IAW AMM 21-00-00. R/R RECIRCULATION FILTERS IAW AMM 21-21-41. SEE LP 3577457-2 FOR PACK #2 DEFERRAL.

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