SDR Q2SA751005

Service difficulty report · Bleed Valve · Boeing 747228F

Difficulty date
July 27, 2008
Submitted
August 6, 2008
Operation
Air carrier
Aircraft
N751SA
Make and model
Boeing 747228F
Aircraft serial
22678
Aircraft time
106,522 hours, 205,590 cycles
Engine
Ge CF650E2
Engine time
56,138 hours, 18,791 cycles
Part
Bleed Valve
Condition
Malfunctioned
Location
Nr 4 Engine
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

VERBAL REPORT, AT 5,000FT CLIMB OUT FROM PHIK, NR 4 ENGINE HIGH NACELLE TEMP AND FIRE WARNING INDICATIONS WENT OFF. REDUCED THRUST FOR 15 SECONDS, WARNING LIGHT WENT OUT. CLOSED BLEED VALVE AND TEMPERATURE DECREASED. AIRCRAFT OPERATED WITH REDUCED THRUST AND RETURNED TO PHIK. NO FUEL WAS DUMPED. INSPECTION FOUND FAULT ENGINE BLEED AIR PRESSURE RELIEF VALVE. ALL AD`S ARE CUTTING FOR THIS ENGINE.