# SDR AALA2020021109042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2020
- Submitted: February 11, 2020
- Operation: Air carrier
- Aircraft: [N939AN](https://openairdocs.org/aircraft/N939AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30083
- Aircraft time: 57,383 hours, 23,886 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pressure Switch
- Part number: 211C223516
- Part serial: Y06563A
- Condition: Faulty
- Location: Lt Rudder Pedal
- Stage of operation: LD
- 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/AALA2020021109042

## Discrepancy

AIRCRAFT NOT GROUNDED: AUTO BRAKE DISARM LIGHT ILLUMINATED AT TOUCHDOWN WHILE SET AT 3. REMOVED AND REPLACED LH RUDDER PEDAL PRESSURE SWITCHES IAW MM 32-42-71.

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