Service difficulty report · Shutoff Valve · Boeing 72725C

Difficulty date
August 12, 2003
Submitted
September 5, 2003
Operation
Air carrier
Aircraft
N937UP
Make and model
Boeing 72725C
Aircraft serial
19302
Aircraft time
63,770 hours, 48,317 cycles
Part
Shutoff Valve
Condition
Defective
Location
Nr 2 Engine
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

INSPECTION TYPE: C, DURING TEST OF ENG NR 2 HYD SHUTOFF VALVE FAILED TO OPERATE CORRECTLY. TROUBLESHOOTING CARRIED OUT IAW WDM 29-11-01 AND ENG NR 2, SYS A HYD SHUT OFF VALVE FOUND TO BE DEFECTIVE. INSTALLED REPLACEMENT HYD SHUT OFF VALVE IAW MM 29-11-21 REF NRC 681341 FOR CANNON PLUG INST & TEST. LEAK CHECK CARRIED OUT IAW MM 29-11-21 STEP 5. NO LEAKS FOUND AND REMAINING STEPS COMPLETED IAW MM 29-11-21.

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