Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
March 26, 2024
Submitted
March 28, 2024
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
30,909 hours, 9,648 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
O
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

WHILE PERFORMING TASK CARD 78233008 FOUND MULTIPLE EMERGENCY LIGHT BATTERY PACKS REQUIRE REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED MULTIPLE INOP EMERGENCY LIGHT BATTERY PACKS REF AMM 33-51-06. OPERATIONAL CHECK GOOD, NO DEFECTS NOTED.