Service difficulty report · Ballast · Boeing 7377H4

Difficulty date
July 15, 2025
Submitted
July 17, 2025
Operation
Air carrier
Aircraft
N479WN
Make and model
Boeing 7377H4
Aircraft serial
33990
Aircraft time
69,309 hours, 41,828 cycles
Part
Ballast
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

CA SIDE WING EMERGENCY EXIT DOOR LIGHT INOP<[01] CA SIDE WINDOW LIGHT ABOVE EMERGENCY EXIT DOOR INOP OK TO CONTINUE PER MEL 33-2-03 SP1B AUTH#268976;[02] RELAMPED. NO JOY. REPLACED CAPTAIN SIDE OVERWING EXIT WINDOW LIGHT BALLAST. OPS CHECK OKAY. REF AMM 33-21-00.

More about the Boeing 737-7H4