# SDR SWAA2019022830177

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2019
- Submitted: February 28, 2019
- Operation: Air carrier
- Aircraft: N413WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29819
- Aircraft time: 60,546 hours, 35,014 cycles
- System (JASC): [2760 · Drag Control System](https://openairdocs.org/jasc/2760)
- Part: Mixing Unit
- Part number: 251A174110
- Part serial: E0833
- Condition: Faulty
- Location: Spoiler Sys
- Stage of operation: LD
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2019022830177

## Discrepancy

DIVERSION, WITH SPEED BRAKE ARMED ON LANDING SB MOVED ONLY ONE INCH. UPON TAXI DISCOVERED SPEED BRAKE BINDING AND DIFFICULT TO MOVE. WORSE WHEN COLD RIGHT AFTER LANDING. R&R SPOILER MIXER PER AMM.

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