SDR MEX2003387

Service difficulty report · Shutoff Valve · Boeing 7572Q8

Difficulty date
August 23, 2003
Submitted
September 10, 2003
Operation
Air carrier
Aircraft
N803AM
Make and model
Boeing 7572Q8
Aircraft serial
26268
Engine
Pwa PW2037
Part
Shutoff Valve
Condition
Malfunctioned
Location
Lt Engine
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

DURING PUSH BACK AND LEFT ENGINE STARTING, ENGINE VALVE LIGHTS TURNED ON, SPAR VALVE DID NOT GO OFF AND N2 WAS BETWEEN 25 PERCENT AND 30 PERCENT WITHOUT EGT INCREMENTATION. THE SPAR VALVE AND FUEL SHUTOFF VALVE WERE RESET IAW MM 73-10-01, ALL TEST CORRECT. DURING OVERNIGHT SERVICE THE LT ENGINE SHUTOFF VALVE AND APU SHUTOFF VALVE ACTUATORS WERE SWAPPED IAW MM 28-25-11, ALL CORRECT. (M)

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