SDR DALA2020050402338

Service difficulty report · O-Ring · Airbus A330302

Difficulty date: May 2, 2020
Submitted: May 4, 2020
Operation: Air carrier
Aircraft: N829NW
Make and model: Airbus A330302
Aircraft serial: 1721
Aircraft time: 18,198 hours, 2,245 cycles
Engine: Ge CF680E1A4
System (JASC): 7261 · Turbine Engine Oil System
Part: O-Ring
Condition: Damaged
Location: Nr 2 Engine
Stage of operation: IN
How discovered: O
Nature of condition: B
Precautionary procedure: K

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

What was found

AIRCRAFT 3329, HAD A BURNT OIL/VAPORS INTO AIR CONDITION SYSTEM ON TAKEOFF AND INITIAL CLIMB (DIRTY SOCK SMELL) AND AGAIN ON DESCENT BELOW 10,000 FEET. FOUND NBR 2 ENGINE, NBR 1 BEARING MANIFOLD LEAKING OIL. REPLACED O'RINGS ON BEARING MANIFOLD AND BOLTS, PERFORMED AIR SYSTEM BURN OUT AND REPLACED RIGHT PACK FLOW CONTROL VALVE AND WATER EXTRACTOR.

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