Service difficulty report · Isolation Valve · Boeing 76731B

Difficulty date
April 12, 2021
Submitted
April 16, 2021
Operation
Air carrier
Aircraft
N1361A
Make and model
Boeing 76731B
Aircraft serial
26265
Aircraft time
94,062 hours, 20,816 cycles
Engine
Ge CF680C2B6F
Part
Isolation Valve
Part number
2780539103
Part serial
1030
Condition
Malfunctioned
Location
Lt Bleed Sys
Stage of operation
TX
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

"L BLD ISLN VAL" EICAS DURING PREFLIGHT.(<P>REMOVED AND REPLACED L ISO VALVE IAW AMM 36-11-04, OPS AND LEAK CHECKS GOOD AT THIS TIME.</P>)

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