SDR SRAA39602

Service difficulty report · Bleed Valve · Boeing 747212B

Difficulty date: March 7, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N745SJ
Make and model: Boeing 747212B
Aircraft serial: 20888
Engine: Pwa JT9D7J
System (JASC): 7532 · Compressor Bleed Valve
Part: Bleed Valve
Condition: Failed
Location: Nr 3 Engine
Stage of operation: CL
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

FLT 201 - AFTER TAKEOFF WHEN PACKS WERE TURNED ON, CREW NOTICED OILY FUMES IN COCKPIT, CLOSED NR 3 ENGINE BLEED VALVE AND FUMES STOPPED. PERFORMED ENGINE RUN-UP, FOUND NR 3 ENGINE N2 SPEED NOT AT IDLE. UP-TRIMMED GROUND IDLE AND OPS CHECKED GOOD ON GROUND, NO FUMES NOTED IN COCKPIT. (X)

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