Service difficulty report · Power Supply · Boeing 777223

Difficulty date
August 29, 2017
Submitted
September 6, 2017
Operation
Air carrier
Aircraft
N794AN
Make and model
Boeing 777223
Aircraft serial
30256
Aircraft time
67,723 hours, 8,624 cycles
Part
Power Supply
Part number
D71702001
Part serial
45321
Condition
No Test
Location
Emergency Lights
Part time
23,924 hours, 2,722 cycles
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 OVERHEAD POWER SUPPLY M33407 AT THE L4 DOOR FAILED TO TEST. REMOVED AND REPLACED THE POWER SUPPLY IAW AMM 33-51-06. OPERATIONAL CHECKED GOOD.