Service difficulty report · Shutoff Valve · Boeing 7673JHF

Difficulty date
June 18, 2021
Submitted
July 16, 2021
Operation
Air carrier
Aircraft
N643GT
Make and model
Boeing 7673JHF
Aircraft serial
37809
Aircraft time
21,298 hours, 5,535 cycles
Engine
Ge CF680C2B7F
Part
Shutoff Valve
Part number
8085561
Part serial
9805231
Condition
Inoperative
Location
Rt Engine
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

RIGHT ENGINE HPSOV INOP ( HIGH PRESSURE SHUTOFF VALVE(HPSOV) SYSTEMS CF6-80C2 . C CHECK, LP 1311040, ITEM M3: REMOVED AND REPLACED RIGHT ENGINE INTERMEDIATE PRESSURE CHECK VALVE IAW 36-11-06-404-009-001. HPSOV ACTIVATED IAW 36-11-07-424-016-001. OPS CHECKED GOOD DURING ENGINE RUN.

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