Service difficulty report · Bleed Valve · Boeing 72722

Difficulty date
August 4, 2001
Submitted
August 6, 2001
Operation
Air carrier
Aircraft
N707DH
Make and model
Boeing 72722
Aircraft serial
18321
Engine
Pwa JT8D7B
Part
Bleed Valve
Condition
Failed
Location
Nr 1 Engine
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
E

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

What was found

T/O THRUST LEFT MANIFOLD DUCT PRESSURE ROSE TO 100PSI DEFERRED PER MAINT. CONTROL 36-11-1 MB. WHEN ATTEMPTING TO START ENGINES TO CHECK PRESSURIZATION, NR 1 ENG WOULD NOT START. NO DUCT PRESSURE DROP AND START VALVE OPEN LIGHT DID NOT ILLUMINATE. RESET C/B- NO HELP. R&R BLEED CONTROL VALVE NR 1 ENG. OPS CK'S GOOD IAW M/M 36-10-1. NO LEAKS NOTED.

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