# SDR SWAA2021022551084

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 2021
- Submitted: February 25, 2021
- Operation: Air carrier
- Aircraft: [N938WN](https://openairdocs.org/aircraft/N938WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36645
- Aircraft time: 39,410 hours, 23,935 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Sensor
- Condition: Faulty
- Location: Lt Wing Te Flaps
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021022551084

## Discrepancy

FLAPS DID NOT RAISE FROM FLAP #1 AFTER TAKEOFF. COMPLIED WITH QRH FOR FLAPS DISAGREE. PERFORMED ALTERNATE FLAP LADNING. NO LIMITS EXCEEDED / FOUND FSEU FAULT CODE 27-52260 (TE FLAP SENSOR RIGHT). R/R FLAP SKEW DETECTION SENSOR PER MM 27-59-01 REF LG PG 1354453 FOR ASSOCAITED FAULT. RAR # 89057 ASSISTED BY 66211 P/N OFF $256A404-3 S/NOFF 7033 P/N ON 9000421-2 S/NN 15686

---
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.