Service difficulty report · Battery Pack · Boeing 73779P

Difficulty date
February 11, 2026
Submitted
February 12, 2026
Operation
Air carrier
Aircraft
N7858A
Make and model
Boeing 73779P
Aircraft serial
29361
Aircraft time
61,894 hours, 40,153 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

THE LEFT EMERGENCY LIGHTING BATTERY PACK AT ROW 20 FAILED A CAPACITY CHECK. REMOVED & REPLACED THE BATTERY PACK IAW MM 33-51-06.

More about the Boeing 737-79P