# SDR 2026FA0000571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2026
- Submitted: July 7, 2026
- Operation: General aviation
- Aircraft: [N633UP](https://openairdocs.org/aircraft/N633UP), registered now
- Make and model: Boeing 747-8F
- Registry model: [Boeing 747-8F](https://openairdocs.org/model/boeing-747-8f) (OpenAirDocs)
- System (JASC): [2597 · Equipment/Furnishings Wiring](https://openairdocs.org/jasc/2597)
- Part: Cable
- Part number: 1A2580289
- Condition: Chafed
- Location: Zone 200
- Component: Seat
- Component part number: 3A2580042012
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000571

## Discrepancy

EXPERIENCE AN AIR TURN BACK WITH SMOKE IN THE COCKPIT DUE TO A DAMAGED ELECTRICAL CORD (P/N 1A258-0289) FOR THE FIRST OFFICERS POWERED SEAT, P/N 3A258-0042-01-2 (PICTURES ATTACHED).  DUE TO THE EVENT UPS HAS BEGAN A FLEET WIDE INSPECTION OF THE SEATS INSTALLED ON 747 AIRCRAFT. THE INSPECTION IS NOT COMPLETED ACROSS ALL 43 AIRCRAFT, BUT WE HAD TWO ADDITIONAL FINDINGS ON THE POWER CORD ALREADY.  I WANT TO STATE THESE ALL SEATS HAD BEEN INSTALLED FOR OVER 5 YEARS AND WE BELIEVE THIS TO BE AN IN SERVICE ISSUE.

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