Service difficulty report · Power Supply · Boeing 737890

Difficulty date
June 14, 2025
Submitted
June 18, 2025
Operation
Air carrier
Aircraft
N590AS
Make and model
Boeing 737890
Aircraft serial
35687
Aircraft time
62,500 hours, 18,969 cycles
Part
Power Supply
Part number
D71702001
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

WHILE ACCOMPLISHING T/C 78233001 FOUND L-2 DOOR INTERIOR AND EXTERIOR LIGHTS FIALED BOTH BATTERY LIFE TESTS. GROUNDED - YES. REMOVED AND REPLACED M1673 EMERGANC LIGHT BATTERY PACK REF 33-51-06-960-805. NO OTHER DISCREPANCIES NOTED.