# SDR UIEA2024011600016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2024
- Submitted: January 16, 2024
- Operation: Air carrier
- Aircraft: [N1321A](https://openairdocs.org/aircraft/N1321A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 27957
- Aircraft time: 94,895 hours, 23,305 cycles
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Switch
- Part number: 233N321431
- Part serial: D01061
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2024011600016

## Discrepancy

AFTER  ENG START AND PUSH BACK , TURNED ON WING AND TAXI LIGHT AND STARTED LH PACK, COCKPIT FILLED WITH ACIDIC/ SMOKEY SMELL. TAXIED OUT BUT RETURNED TO GATE, SMELL DID NOT GO AWAY.(<P>PER CONVERSATION WITH CREW AND DVI OF LIGHT CONTROL PANELS, FOUND RUNWAY TURNOFF SWITCH BURNT AND ARCHING. R/R LIGHTING CONTROL PANEL ASSY PER AMM 33-13-00, OPS CHECK GOOD. NO FURTHER OVERHEATING/ ARCHING</P>)

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