Service difficulty report · Power Supply · Boeing 737924ER

Difficulty date
November 15, 2025
Submitted
November 17, 2025
Operation
Air carrier
Aircraft
N39475
Make and model
Boeing 737924ER
Aircraft serial
37100
Aircraft time
38,784 hours, 14,082 cycles
Part
Power Supply
Part number
D71702030
Condition
Inoperative
Location
Zone 200
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 - OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - SEATS 15A,20A,21A EMERGENCY AISLE LIGHT DO NOT ILLUMINATE SLAVED IN NEW POWER SUPPLY ON EMERGENCY EXIT LIGHT BATTERY PACK (M1670) (1673) (M2626) (2503) IAW AMM 33-51-06 NO JOY, OLD POWER SUPPLYS IN ORIGINAL SPOT, REPLACED POWER SUPPLY M1694 AT 20ABC FWD OF EMERGENCY EXIT HATCH IAW AMM 33-51-06-960-806. OPS CKD GOOD.