# SDR SWIA2026082876970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N778SK](https://openairdocs.org/aircraft/N778SK), registered now
- Make and model: Cndair CL6002C11
- Aircraft serial: 10242
- Aircraft time: 50,204 hours, 34,411 cycles
- System (JASC): [3320 · Passenger Compartment Lighting](https://openairdocs.org/jasc/3320)
- Part: Ballast
- Part number: BR9500106
- Condition: Failed
- Location: Zone 200
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA2026082876970

## Discrepancy

PASSENGER LIGHT OVER 1 A BEGAN FLICKERING AND SMOKE BEGAN TO COME OUT OF THE LIGHT AREA.  (FLIGHT 4324)TROUBLESHOT SMOKE IN CABIN IAW FIM 21-22-00-810-806. PERFORMED OPS CHECK OF AC DISTRIBUTION SYSTEM IN REFERENCE TO AMM 21-51-00 PER FIM. NO SMOKE OR ABNORMAL SMELLS NOTED. FOUND SIDEWALL LIGHT OVER 1A TO BE INOP. DROPPED PANEL WITH LIGHT POWER UNITS/DIMMERS OVER SEAT 1A IN OVERHEAD BIN AND FOUND ONE TO BE AN OBVIOUS CAUSE OF THE LIGHT FLICKERING AND SMOKE. FOUND POWER UNIT/DIMMER HAS EXTERNAL EVIDENCE OF BURNING AND INTERNAL HARDWARE MELTED/BURNT CAN BE SEEN THROUGH COOLING HOLES. REMOVED AND REPLACED SIDEWALL LIGHTS POWER UNIT/DIMMER IN OVERHEAD BIN OVER SEAT 1A IN REFERENCE TO AMM 33-21-09. OPS CHECK GOOD. A/C OK FOR CONTINUED SERVICE.

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