Service difficulty report · Shutoff Valve · Boeing 75724APF

Difficulty date
April 10, 2019
Submitted
April 12, 2019
Operation
Air carrier
Aircraft
N406UP
Make and model
Boeing 75724APF
Aircraft serial
23728
Aircraft time
32,569 hours, 22,270 cycles
Engine
Pwa PW2040
Part
Shutoff Valve
Part number
32896285
Part serial
788
Condition
Failed
Location
Lt Engine Bleed
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
B, G, A

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

What was found

DIVERSION - L ENG BLEED OFF ILLUMINATED AFTER EAI WAS SELECTED ON DURING FLIGHT AT CRUISE FL 300. L ENG WAS FOLLOWED BY R ENG. L AND R PACK OFF. ACCOMPLISHED CHECKLIST AND DESCENDED TO 10,000 AFTER LOSS OF PRESSURE.REPLACED LT ENG HI PRESS SHUTOFF VALVE REF 36-11-07 AND LT FAN AIR TEMP SENSOR REF 36-11-17-004 AND LT FAN AIR MOD VALVE REF 36-11-16-024. LEAK AND OPS NORMAL.

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