Service difficulty report · Battery Pack · Boeing 7374B7

Difficulty date
May 2, 2021
Submitted
May 3, 2021
Operation
Air carrier
Aircraft
N438US
Make and model
Boeing 7374B7
Aircraft serial
24568
Aircraft time
66,987 hours, 44,691 cycles
Part
Battery Pack
Part number
20131A
Part serial
101026
Condition
Discharged
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

LEFT OVER WING EMERGENCY EXIT IDENTIFIER INOP. REPLACED BATTERY PACK ON POWER SUPPLY M1134, OPS CHECK GOOD, REF B737-400 AMM 33-51-51

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