# SDR SWAA2021102633220

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2021
- Submitted: October 26, 2021
- Operation: Air carrier
- Aircraft: N8622A
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36919
- Aircraft time: 27,166 hours, 12,286 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Transmitter
- Part number: S256A40453
- Part serial: 5191
- Condition: Faulty
- Location: Le Flaps
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021102633220

## Discrepancy

ON SELECTION OF FLAPS TO 1*; NEEDLE STOPPED SHORT OF FLAPS 1 INDICATION. LE FLAPS TRANSIT AMBER LIGHT REMAINED ILLUMINATED. LED DEVICES OVERHEAD INDICATED FULL EXT. LE FLAPS TRANSIT AMB LIGHT EXTINGUISHED DURING ALTERNATE FLAP EXTENSION TO FLAPS 15. NO INDICATION OF ASYMMETRY OBSERVED. / COMPLIED WITH FSCEU BITE CHECK PER FIM 27-51-TASK 801. FAULT CODES 27-52260 SEE NEXT LOG PER FINAL RESOLUTION 1656345 - PER FIM 27-51 TASK 820 FOUND RH FLAP TRANSMITTER INOP. R/R RH FLAP TRANSMITTER EPR AMM 27-58-01 OPS CHECK OK PN OFF; S256A404-53 SN OFF; 5191 PN ON; 18-1738-12 SN ON; 3049

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.