SDR UPS99431141

Service difficulty report · Bleed Valve · Boeing 747212B

Difficulty date: November 22, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N522UP
Make and model: Boeing 747212B
Aircraft serial: 21936
System (JASC): 7532 · Compressor Bleed Valve
Part: Bleed Valve
Condition: Failed
Location: Nr 4 Engine
Stage of operation: TO
Nature of condition: N
Precautionary procedure: E, C

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

What was found

INSPECTION TYPE:N/A, AT 1000 FEET ENGINE NR 4 SHOWED ENGINE FIRE. SHUT ENGINE DOWN PER UPS OPERATING PROCEDURES. REMOVED AND REPLACED NR 4 ENGINE HIGH STAGE BLEED VALVE AND CONTROLLER PER MM 36-11-17 AND 36-11-06, OPS CHECKS NORMAL PER MM 71-00-00. INSPECTED TIRES AND BRAKES AFTER COOL DOWN, CKS NORMAL.

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