SDR GTIA2025071038986

Service difficulty report · Ecs · Airbus A320271N

Difficulty date: July 8, 2025
Submitted: July 10, 2025
Operation: Air carrier
Aircraft: N970NK
Make and model: Airbus A320271N
Aircraft serial: 11067
Aircraft time: 9,828 hours, 4,223 cycles
System (JASC): 2120 · Air Distribution System
Part: Ecs
Condition: Contaminated
Location: Zone 100
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

DIRTY SOCK SMELL IN COCKPIT ONLY. TURNED OFF PACK 1 AND SMELL DISAPPATED. WE WERE ABOUT 8,000' ON DESCENT-PER TSM 05-50-00-810-831-A, LEVEL B DECONTAMINATION OF THE BLEED AIR DUCTS AND ECS IS REQUIRED. PERFORMED LEVEL B DECONTAMINATION OF THE BLEED AIR DUCTS AND ECS IAW AMMS 36-10-00-615-805-A AND 21-00-00-615-803-A. PERFORMED OPS TEST OF PACKS 1 AND 2 IAW AMM 21-51-00-710-002-A. NO ODORS DETECTED. A/C OK FOR CONT. SVC. MOC NOTIFIED.

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