Service difficulty report · Power Supply · Boeing 737436

Difficulty date
November 28, 2023
Submitted
December 29, 2023
Operation
Air carrier
Aircraft
N401YK
Make and model
Boeing 737436
Aircraft serial
25860
Aircraft time
63,649 hours, 43,540 cycles
Part
Power Supply
Part number
BPS73
Part serial
32476
Condition
Failed
Location
Unknown
Part time
8,910 hours, 10,511 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

OPERATIONAL TEST FOUND THE EMERGENCY LIGHT FAILURE, EQUIP.NO: M1675, S/N:32476. REPLACED THE EMERGENCY LIGHT POWER SUPPLY REF AMM 33-51-51-962-016.