Service difficulty report · Power Supply · Boeing 757223

Difficulty date
April 29, 2015
Submitted
April 30, 2015
Operation
Air carrier
Aircraft
N567CA
Make and model
Boeing 757223
Aircraft serial
24608
Aircraft time
66,823 hours, 23,027 cycles
Engine
Rroyce RB211535E437
Part
Power Supply
Part number
BPS73
Part serial
27735
Condition
Intermittent
Location
Emergency Light
Part time
2,094 hours, 649 cycles
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WITH EMERGENCY LIGHT SWITCH ARMED, VARIOUS EMERGENCY LIGHTS IN THE CABIN GO ON AND OFF AT RANDOM TIMES, WITH SWITCH IN ON POSITION, ALL OVERHEAD EMERGENCY LIGHTS COME ON, BUT ONLY SOME FLOOR PATH LIGHTS WORK. R & R POWER SUPPLY ASSY IAW AMM 33-51-07. EMERGENCY LIGHTS OPERATIONALLY CHECK GOOD.