SDR ASAA2024012348621

Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date: January 23, 2024
Submitted: March 27, 2024
Operation: Air carrier
Aircraft: N408AS
Make and model: Boeing 737990ER
Aircraft serial: 41732
Aircraft time: 41,130 hours, 12,961 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Part number: D71702001
Condition: Inoperative
Location: Exterior Lights
Stage of operation: IN
How discovered: C
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

R1 DOOR EXTERIOR EMER EXIT LIGHT DOES NOT ILLUMINATE ALL OTHER EMER LIGHTS ON THAT BATTERY PACK OPS CK GOOD. GROUNDED - YES. REMOVED, REPLACED & OPS TEST GOOD OF NEAR FWD ENTRY DOOR PWER SUPPLY BATTERY PACK IAW B737-900 AMM 33-51-06-960-805 STEPS 4E , 4, 6A, 61, 2 & F2 & 3.