Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
March 18, 2025
Submitted
March 24, 2025
Operation
Air carrier
Aircraft
N260AK
Make and model
Boeing 737990ER
Aircraft serial
36349
Aircraft time
31,454 hours, 10,093 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 EXIT LIGHT ASSY ABOVE OVERHEAD BIN AT 27 ABC INOP. GROUNDED - YES. REF FIM 33-50 TASK 801 VERIFIED EMERGENCY AISLE LIGHT AT SEAT ROW 27ABC IS INOP. RESISTANCE CHECKS SHOW WIRING IS WITHIN LIMITS & NO FUSES ARE DAMAGED REF WDM 33-51-13 PAGE 5 SHEET 3. R & R BATTERY PACK M2626, OPS CHECK GOOD REF AMM 33-51-06-960-805, AISLE LIGHT IS WORKING AS INTENDED. DURING TROUBLESHOOTING CONNECTOR D15778 FOR AISLE LIGHT WAS DAMAGED, REPLACED NEW CONNECTOR & PERFORMED EMERGENCY LIGHTS TEST NORMAL AMM 33-51-00-700-801, WDM 33-51-13P5S3 & SWPM 20-63-02.