# SDR AALA202108303946

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2021
- Submitted: August 30, 2021
- Operation: Air carrier
- Aircraft: [N943NN](https://openairdocs.org/aircraft/N943NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31177
- Aircraft time: 22,974 hours, 8,721 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Bleed Valve
- Condition: Loose
- Location: Nr 3 Brake
- Stage of operation: TX
- 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/AALA202108303946

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING TAXI, BRAKE PEDALS PUSHED TO THE FLOOR WITH EXCESSIVE CHATTERING AND LOSS OF STOPPING FORCE. TIGHTENED #3 BRAKE BLEED VALVE AND BLED ALL BRAKES IAW AMM 32-41-00, LEAK AND OPS CHECK GOOD.

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