Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
March 19, 2020
Submitted
March 24, 2020
Operation
Air carrier
Aircraft
N424WN
Make and model
Boeing 7377H4
Aircraft serial
29828
Aircraft time
61,632 hours, 36,258 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

EXTERIOR EMERGENCY LIGHTS INOP AT LEFT OVERWING EXIT AND LEFT AND RIGHT AFT FAIRINGS LOCATION. REMOVED AND REPLACED BATTERY PACK ON W/O W141352 OPERATIONAL TEST NORMAL AS PER B737 AMM 33-51-00-710-801.

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