Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
August 20, 2026
Submitted
August 25, 2026
Operation
Air carrier
Aircraft
N452WN
Make and model
Boeing 7377H4
Aircraft serial
29846
Aircraft time
73,395 hours, 44,294 cycles
Part
Battery Pack
Condition
No Test
Location
Zone 200
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

EMERGENCY EXIT LT EMERGENCY BATTERY PACK M1668 FAILED CAPACITY CHECK. R & R CABIN EMERGENCY BATTERY PACK PER AMM 33-51-06

More about the Boeing 737-7H4