Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
May 7, 2024
Submitted
May 9, 2024
Operation
Air carrier
Aircraft
N8520Q
Make and model
Boeing 7378H4
Aircraft serial
42532
Aircraft time
24,575 hours, 12,166 cycles
Part
Battery Pack
Part number
UNKNOWN
Condition
Inoperative
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

SEVERAL EMERGENCY LIGHTS WILL NOT ILLUMINATE THROUGHOUT THE AIRCRAFT<[01] REMOVED AND REPLACED BATTERY PACKS AT THE FOLLOWING POSITIONS; M1671;M1672;M1675 AND M2335 PER AMM 33-51-06

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