Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
April 1, 2020
Submitted
April 6, 2020
Operation
Air carrier
Aircraft
N422WN
Make and model
Boeing 7377H4
Aircraft serial
29826
Aircraft time
62,594 hours, 36,797 cycles
Part
Battery Pack
Condition
Discharged
Location
Cabin
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

RT OVER WING EMERGENCY EXIT SIGN NOT ILLUMINATED WHEN SWITCHED TO ON. / R&R EMERGENCY LIGHT BATTERY PACK AND POWER SUPPLY AND LIGHT ASSEMBLY AT M1669. PER AMM 33-51-06.

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