Service difficulty report · Battery · Boeing 767322

Difficulty date
February 9, 2026
Submitted
February 13, 2026
Operation
Air carrier
Aircraft
N651UA
Make and model
Boeing 767322
Aircraft serial
25389
Aircraft time
132,854 hours, 20,315 cycles
Part
Battery
Part number
AD20131A
Condition
Inoperative
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

SEAT ROW 43-48 LT, AISLE EMERGENCY LIGHTS INOPERATIVE. USING WIRING DIAGRAM N0706-D73 REV-. CONNECTOR D1982 PINS 9+11 TO GROUND IS 1.6 OHMS- NORMAL. TRIED NEW BATTERY PACK & POWER SUPPLY UNIT, NO HELP, RETURNED ORIGINAL UNITS. CHECKED SMALL FLOOR ACCESS PANEL FOR CONNECTION, NORMAL, CONNECTOR D9182 NOT D1982. REPLACED EMERGENCY LIGHT BATTERY PACK AT M9047 IAW AMM 33-51-07-022-001, AND 33-51-07-422-012. OPS CHECKED GOOD.