Service difficulty report · Battery Pack · Boeing 747443

Difficulty date
July 16, 2025
Submitted
July 17, 2025
Operation
Air carrier
Aircraft
N482MC
Make and model
Boeing 747443
Aircraft serial
32340
Aircraft time
94,591 hours, 12,590 cycles
Part
Battery Pack
Part number
20131A
Part serial
499383
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

RH EXTERIOR OVER WING AFT EMERGENCY LIGHT INOP. REMOVED AND REPLACED RH EMERGENCY LIGHT POWER SUPPLY IAW AMM 33-51-04-902-001-001. OPS CHK OK. NO FURTHER DEFECTS NOTED.