Service difficulty report · Engine · Boeing 7377H4

Difficulty date
October 21, 2025
Submitted
October 27, 2025
Operation
Air carrier
Aircraft
N966WN
Make and model
Boeing 7377H4
Aircraft serial
36966
Aircraft time
44,979 hours, 27,828 cycles
Engine
Cfmint CFM567B242
Part
Engine
Condition
Shutdown
Location
Nr 1
Stage of operation
TX
How discovered
O
Nature of condition
Y, J
Precautionary procedure
O

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

What was found

NUMBER 1 ENGINE ON SHUTDOWN, ENG FAIL APPEARED ON DISPLAY. DISAPPEARED AFTER AROUND 10 SECONDS. PERFORMED EEC BITE NR 1 ENGINE, MSG 76-31361 SHOWS THE START LEVER DISAGREE ON SHUTDOWN. PERFORMED NR 1 ENGINE RUN PER MM 71-00-00. NO ABNORMAL PARAMETERS SHOWED ON SHUTDOWN. EEC BITE SHOWS NO FAULTS. ACFT OK FOR SERVICE.

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