Service difficulty report · Battery · Boeing 75721B

Difficulty date
January 28, 2026
Submitted
January 28, 2026
Operation
Air carrier
Aircraft
N934FD
Make and model
Boeing 75721B
Aircraft serial
24331
Aircraft time
63,877 hours, 41,554 cycles
Part
Battery
Part number
20131A
Part serial
N781FX
Condition
Failed
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

ON SERVICE CHECK, NOTED CENTER GALLEY EXIT SIGN & R1 DOOR EXIT SIGN, & R1 DOOR SLIDE LIGHT NOT ILLUMINATING ON TEST. R & R FWD GALLEY EMERGENCY LIGHT POWER SUPPLY BATTERY IAW MM 33-51-07-2.CENTER GALLEY EXIT LIGHT R1 DOOR EXIT LIGHT & R1 DOOR SLIDE LIGHT OPS CHKD GOOD IAW MM 33-51-07-2.

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