- Difficulty date
- April 6, 2026
- Submitted
- April 9, 2026
- Operation
- Air carrier
- Make and model
- Boeing 7379
- Aircraft serial
- 44103
- Aircraft time
- 12,939 hours, 3,712 cycles
- Part
- Power Supply
- Part number
- D71702001
- Condition
- Inoperative
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- 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 T/C #33-010-00, FOUND SEAT ROWS 16 ABC AND 16 DEF VERTICAL LIGHTED ARROW EMERGENCY LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED BOTH VERTICAL LIGHTED ARROW EMERGENCY LIGHTS ON SEAT ROWS 16 ABC AND 16 DEF REF AMM 33-51-01. OPS CHK FAILED. LIGHTS STILL INOP. SUSPECT WIRING DEFECT. WB 1080701 04/06/2026. REPLACED BATTERY PACK POWER SUPPLY (M1694) REF AMM 33-51-06-960-802. EMERGENCY BATTERY TEST PASS.