# SDR AALA202111224383

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2021
- Submitted: November 22, 2021
- Operation: Air carrier
- Aircraft: [N859NN](https://openairdocs.org/aircraft/N859NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 29555
- Aircraft time: 33,287 hours, 13,733 cycles
- System (JASC): [2760 · Drag Control System](https://openairdocs.org/jasc/2760)
- Part: Module
- Part number: 658420921
- Part serial: D03130
- Condition: Faulty
- Location: Zone 100 - Fuse
- Stage of operation: LD
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202111224383

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON LANDING SPEED BRAKE DID NOT AUTOMATICALLY DEPLOY. REPLACED AUTO SPEED BRAKE CONTROL ACCESSORY MODULE PER AMM 27-62-35.

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