SDR ARWA20020302

Service difficulty report · Relief Valve · Doug DC85F54

Difficulty date: March 5, 2002
Submitted: March 14, 2002
Operation: Air carrier
Aircraft: N426FB
Make and model: Doug DC85F54
Aircraft serial: 45667
Aircraft time: 70,546 hours, 23,641 cycles
Engine: Pwa JT3D3B
System (JASC): 7261 · Turbine Engine Oil System
Part: Relief Valve
Part number: 779606
Part serial: 26167
Condition: Faulty
Location: Nr 2 Engine
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: E, A

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

What was found

DURING CLIMBOUT THROUGH 15,000 FT, NR 2 ENGINE OIL PRESSURE BEGAN FLUCTUATING, NR 2 OIL PRESSURE LIGHT ILLUMINATED. ACCOMPLISHED APPROPRIATE CHECK LISTS AND SHUT DOWN ENGINE AT 00:15Z, OIL WINDMILLED AT 12 PSI. AIRCRAFT RETURNED TO PTY AND LANDED UNEVENTFUL. REMOVED AND REPLACED NR 2 ENGINE OIL PRESSURE RELIEF VALVE IAW MM 79-20-5, OPS CHECK PER MM 79-20-0, FOUND NORMAL.