# SDR AALA202504220285

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2025
- Submitted: April 22, 2025
- Operation: Air carrier
- Aircraft: [N936NN](https://openairdocs.org/aircraft/N936NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31176
- Aircraft time: 33,728 hours, 14,755 cycles
- System (JASC): [3241 · Brake Anti-Skid Section](https://openairdocs.org/jasc/3241)
- Part: Control Unit
- Part number: 429352
- Condition: Faulted
- Location: Zone 100
- Stage of operation: NR
- 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/AALA202504220285

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: WHEN ANTI-SKID SELECTOR IS IN THE RTO POSITION, AUTO BRAKE DISARMLIGHT ILLUMINATES.  REMOVED AND REPLACED (AACU)- ANTISKID AUTOBRAKE CONTROL UNIT. PER AMM 32-42-21.

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