# SDR SWAA2021090915168

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 2021
- Submitted: September 9, 2021
- Operation: Air carrier
- Aircraft: [N8658A](https://openairdocs.org/aircraft/N8658A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36899
- Aircraft time: 10,233 hours, 22,851 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Transmission
- Condition: Underserviced
- Location: Te Flaps
- Stage of operation: AP
- How discovered: O
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021090915168

## Discrepancy

ON APPROACH FLAPS WOULD NOT MOVE FROM 25 TO 30 WHILE UNDER THE PLACARD SPEED. NO FLAP TRASIT LIGHT OR SPLIT. DURING GO AROUND FLAPS RETRACTED NORMALLY. FLAPS EXTENDED NORMALLY ON NEXT APPROACH AND A NORMAL LANDING WAS MADE / PERFORMED FIM 27-51 TASK 836 NO FAULTS ON FSEU. BITE. PERFORMED SERVING OF ALL TRANSMISSION PER M.M. 12-22-51. NO PROBLEMS FOUND. PERFORMED FLAP LOAD RELIEF TEST PER FIM 27-51 TASK 831. NO FAULTS SYSTEM OPS CHECK GOOD.

---
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.