SDR ASAA2024091552584

Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date: September 15, 2024
Submitted: September 18, 2024
Operation: Air carrier
Aircraft: N481AS
Make and model: Boeing 737990ER
Aircraft serial: 44106
Aircraft time: 34,001 hours, 10,544 cycles
System (JASC): 3350 · Emergency Lighting
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

ABOVE ROWS 29DEF, 25DEF, 11ABC AND 7ABC EMERGENCY EXIT LIGHTS NOT WORKING. GROUNDED - YES. GENERATED HAECO NON-ROUTINE'S G2033113, G2033116; G2033115: REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLIES (M2335, M2627, M1670) INSTALL TEST GOOD REF B737-900 AMM 33-51-06-960-806.