SDR ASAA2021120136769

Service difficulty report · Battery · Boeing 737990ER

Difficulty date: December 1, 2021
Submitted: December 3, 2021
Operation: Air carrier
Aircraft: N493AS
Make and model: Boeing 737990ER
Aircraft serial: 41727
Aircraft time: 20,471 hours, 6,498 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: ADD71701100
Condition: Inoperative
Location: Emergency Lights
Stage of operation: IN
How discovered: 9
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 EMERGENCY LIGHT RESTORATION THE FOLLOWING LIGHT FIALED R1 DOOR OVERHEAD. GROUNDED - YES. REMOVED AND REPLACED R1 DOOR OVERHEAD BATTERY PACK, OP'S CHECK GOOD IAW B737-900 AMM 33-51-06-960-805 STEPS 4.E.(1), (2), (3), (6) AND (4), (5), (6).