Service difficulty report · Power Supply · Boeing 747422

Difficulty date
July 21, 2017
Submitted
July 21, 2017
Operation
Air carrier
Aircraft
N117UA
Make and model
Boeing 747422
Aircraft serial
28810
Aircraft time
73,516 hours, 8,421 cycles
Part
Power Supply
Condition
Inoperative
Location
Cabin
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 LIGHTS L5195 AND L1166 AFT OF LT BODY FAIRING ARE INOP. RPL BATT POWER SUPPLY M7919 REF WD 33-51-42 P1 AND AMM33-51-04-9 02-001-002 AND OP TEST OK. VERIFIED OPERATION, SAFETY AND SECURITY.