SDR AALA202604139869

Service difficulty report · Control Valve · Airbus A319112

Difficulty date: April 9, 2026
Submitted: April 13, 2026
Operation: Air carrier
Aircraft: N751UW
Make and model: Airbus A319112
Aircraft serial: 1317
Aircraft time: 60,992 hours, 41,378 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Control Valve
Condition: Odor
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

AIRCRAFT WAS GROUNDED: DIRTY SOCK FUMES PERSISTED THROUGHOUT ENTIRE FLIGHT. THE WORST FUMES WERE BELOW 10,000 FEET. MAINTENANCE REPLACED L/H CONDENSER IAW AMM 21-52-32, L/H REHEATER IAW AMM 21-52-31, L/H OZONE FILTER IAW AMM 21-51-41 AND L/H FLOW CONTROL VALVE IAW AMM 21-51-51.

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