Service difficulty report · Valve · Boeing 767306

Difficulty date
March 16, 2018
Submitted
March 19, 2018
Operation
Air carrier
Aircraft
N1321A
Make and model
Boeing 767306
Aircraft serial
27957
Aircraft time
81,938 hours, 18,982 cycles
Part
Valve
Part number
7738556
Part serial
2008091134
Condition
Faulted
Location
Lt 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

LEFT ENGINE FAN AIR VALVE SWITCH DISAGREE. FOUND THE LEFT ENGINE FAN AIR VALVE FAULTING. REMOVED AND REPLACED FAN AIR VALVE IAW AMM 36-11-16, OP CHECKED OK.