# SDR UIEA2019091705518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2019
- Submitted: September 18, 2019
- Operation: Air carrier
- Aircraft: [N409MC](https://openairdocs.org/aircraft/N409MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30558
- Aircraft time: 80,228 hours, 12,596 cycles
- System (JASC): [2510 · Flight Compartment Equipment](https://openairdocs.org/jasc/2510)
- Part: Seat
- Part number: 3A0900056011
- Part serial: 20749
- Condition: Defective
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019091705518

## Discrepancy

AIR TURN BACK (ATB) - F/O SEAT WILL NOT LOCK IN FWD OR AFT POSITION, OR ANY POSITION IN BETWEEN. EITHER WITH MANUAL LEVERS OR ELECTRICALLY. LP 674182 - REMOVED AND REPLACED F/O'S SEAT IAW AMM 25-11-01, OPS CHECK GOOD.

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