Service difficulty report · Apu Bay · Airbus A321231

Difficulty date
December 21, 2025
Submitted
December 22, 2025
Operation
Air carrier
Aircraft
N664NK
Make and model
Airbus A321231
Aircraft serial
7021
Aircraft time
31,740 hours, 14,119 cycles
Part
Apu Bay
Condition
Contaminated
Location
Zone 300
Stage of operation
LD
How discovered
O
Nature of condition
C, B
Precautionary procedure
O

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

What was found

FA AND PAX IN ROW 25 SMELLED DIRTY SOCKS DURING TAKE OFF AND LANDING WAS REPORTED TO YHE PILOTS AFTER LANDING DURING TAXI IN PACK 2 AND XBLEED SHOT PER ELIMINATION OF FUMES PROCEDURE FUMES DISSIPATED -INDENTY CAUSE OF SMELL IAW TSM 05-50-00-810-831A, FOUND APU COMP. CONTAMINATED. PERFOM CLEANING OF APU IAW AMM 49-16-00 AND R/R RECIRCULATION FILTERS IAW AMM 21-21-41 AND PERFORMED PACK BURNOUT 21-00-00. PERFORMED INSP OF PACK 1 & 2 BAYS NO FINDINGS FOUND ON THEM ( NO TRACES OF OIL)

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