SDR WX0A2016072273178

Service difficulty report · Relief Valve · Doug MD88

Difficulty date: July 18, 2016
Submitted: July 22, 2016
Operation: Air carrier
Aircraft: N402NV
Make and model: Doug MD88
Aircraft serial: 49763
Aircraft time: 66,414 hours, 42,706 cycles
Engine: Pwa JT8D219
System (JASC): 7920 · Engine Oil Distribution (Airframe Furnished)
Part: Relief Valve
Part number: 811131
Part serial: KH338
Condition: Failed
Location: Rt Engine
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

EMERGENCY DECLARED, AFTER TAKEOFF, OIL PRESSURE CLIMBED ABOVE 55 PSI REACHING A PSI OF 80, FOLLOWED EMERGENCY QRH PROCEDURES. REPLACED NR 2 ENGINE OIL PRESSURE REGULATOR OPS AND LEAK CHECKS GOOD IAW MM 79-20-03-2-0. REMOVED & REPLACED NR 2 ENGINE OIL PRESSURE RELIEF VALVE REF AMM 79-20-03-02 SEE LP 703073 FOR LEAK & OPS CHECK .

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