Service difficulty report · A/C Pack · Airbus A321231

Difficulty date
December 15, 2025
Submitted
December 19, 2025
Operation
Air carrier
Aircraft
N664NK
Make and model
Airbus A321231
Aircraft serial
7021
Aircraft time
31,690 hours, 14,096 cycles
Part
A/C Pack
Condition
Contaminated
Location
Nr 1
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

FUME EVENT, AIRCRAFT WAS DEICED YESTERDAY MAYBE TWICE, PACK 1 IS GIVING OFF A MODERATE DEICE FLUID ODOR REGARDLESS IF ENGINE OR APU IS RUNNING. THE PACK 1 FUMES CHECK LIST WAS PERFORMED, PACK 1 WAS TURN OFF ODOR DISAPPEARED. ODOR WAS ISOLATED TO THE FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED. -PERFOMED AAM 21-00-00-615-802-A, LEVEL A DECONTAMINATION OF ECS. USED AEROLYZER IAW STEP 4B(13)(A). NO ODOR PRESENT. R &R RECIRCULATION FAN FILTERS IAW AMM 21-21-41-400-001 AS A PRECAUTION. LEVEL A DECONTAMINATION C/W IAW TSM 05-50-00-810-831-A, AND AMM 21-00-00-615-802-A, NO ODOR PRESENT. ACFT OK FOR SVC,

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