Service difficulty report · Battery Pack · Boeing 7377AD

Difficulty date
July 27, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N798SW
Make and model
Boeing 7377AD
Aircraft serial
28436
Aircraft time
72,181 hours, 43,139 cycles
Part
Battery Pack
Condition
No Test
Location
Emergency Lights
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

NUMEROUS EMERGENCY LIGHTING BATTERY PACKS FAILED CAPACITY CHECK. 6 LEFT AND LEFT OVERWING; LEFT 14;17;20;23. L2 DOOR SMALL SIGN; R2 DOOR BIG SIGN ; / [01] REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY PACKS @ CONNECTORS; M1674; M1675;M1669;M1668;M1670;M1672; AND M1673 PER DWG NO. 33500005

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