Service difficulty report · Power Supply · Boeing 7377H4

Difficulty date
September 10, 2026
Submitted
September 15, 2026
Operation
Air carrier
Aircraft
N943WN
Make and model
Boeing 7377H4
Aircraft serial
36913
Aircraft time
53,229 hours, 32,710 cycles
Part
Power Supply
Condition
Intermittent
Location
Zone 200
Stage of operation
IN
How discovered
V
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

EMERGENCY EXIT LIGHTS AT 19DEF AND 22DEF ILLUMINATE ON AND TURN OFF WTHIN A COUPLE OF SECONDS. REMOVED AND REPLACED EMERENCY LIGHT POWER SUPPLY AND BATTERY PACK IAW AMM 33-51-06-960-806.

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