Service difficulty report · Battery Pack · Boeing 737790

Difficulty date
November 21, 2017
Submitted
November 27, 2017
Operation
Air carrier
Aircraft
N557WN
Make and model
Boeing 737790
Aircraft serial
30166
Aircraft time
55,588 hours, 25,843 cycles
Part
Battery Pack
Part number
D71701100
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

EMERGENCY LIGHT BATTERY PACK FAILED A CAPACITY CHECK AT LOCATION M01673. R & R THE BATTERY PACK IAW MM.