Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
May 10, 2025
Submitted
May 12, 2025
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
32,319 hours, 9,921 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Zone 200
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

EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1670 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED NEW POWER SUPPLY M1670 IAW B737 AMM 33-5106-960-806. TEST GOOD. (S/N 126432)