Service difficulty report · Anti-Ice Valve · Boeing 7673BG

Difficulty date
May 20, 2024
Submitted
May 25, 2024
Operation
Air carrier
Aircraft
N566NC
Make and model
Boeing 7673BG
Aircraft serial
30566
Aircraft time
75,483 hours, 19,108 cycles
Engine
Pwa PW4060
Part
Anti-Ice Valve
Part number
2790583108
Part serial
1756AF
Condition
Failed
Location
Lt Engine
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

L ENG ANTI-ICE DOES NOT ALWAYS CLOSE, VALVE LIGHT STAYS ON, EXTINGUISHES LATER. REMOVED AND REPLACED LH ENGINE INLET TAI VALVE. PER AMM 30-21-03, OPS AND LEAK CHECK GOOD. UNIT UNKNOWN TO TRAX.

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