What was found
NUMEROUS EMERGENCY LIGHTS FAILED OPS CHECK THROUGHOUT CABIN. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLIES M1694, M1695, M1670, AND M1671, OPS TEST CHECKS GOOD IAW B737NG AMM 33-51-06. (S/N 133609)
- Difficulty date
- July 6, 2025
- Submitted
- July 10, 2025
- Operation
- Air carrier
- Aircraft
- N263AK
- Make and model
- Boeing 737990ER
- Aircraft serial
- 62471
- Aircraft time
- 27,639 hours, 9,032 cycles
- System (JASC)
- 3350 · Emergency Lighting
- 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.