Service difficulty report · Isolation Valve · Boeing 7673BG

Difficulty date
February 9, 2024
Submitted
February 14, 2024
Operation
Air carrier
Aircraft
N566NC
Make and model
Boeing 7673BG
Aircraft serial
30566
Aircraft time
74,980 hours, 18,918 cycles
Part
Isolation Valve
Part number
UNKNOWN
Condition
Faulted
Location
Left
Stage of operation
NR
How discovered
O
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

LEFT ISOLATION VALVE EICAS MESSAGE. NO DUCT PRESSURE INDICATED AND ASSOCIATED L ISLN LIGHT. SWAPPED LEFT AND CENTER ISOLATION VALVES PER AMM 36-11-04 INSTALLATION TEST PASSED.

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