Service difficulty report · Power Supply · Boeing 757236

Difficulty date
August 6, 2019
Submitted
August 8, 2019
Operation
Air carrier
Aircraft
N948FD
Make and model
Boeing 757236
Aircraft serial
25059
Aircraft time
41,081 hours, 34,534 cycles
Part
Power Supply
Part number
BPS73
Part serial
24843
Condition
No Test
Location
Emergency Lights
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

DURING CHECK, FOUND THE RT EMERGENCY EXIT LOCATOR SIGN LIGHT ONLY ILLUMINATIED FOR 10 SECONDS WHEN THE EMERGENCY SWITCH ON OR PERFORMED THE EMERGENCY LIGHT TEST. REMOVED AND REPLACED THE EMERGENCY LIGHT POWER SUPPLY M730 IAW AMM 33-51-07-2. IAW AMM 33-51-07-2, PERFORMED POWER SUPPLY TEST, RESULT WAS SATISFACTORILY. ENSURED THE EMERGENCY LIGHTS GO OFF AFTER APPROXIMATELY ONE MINUTE. OK TO SERVICE.