# SDR DALA2017013100856

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2017
- Submitted: February 2, 2017
- Operation: Air carrier
- Aircraft: N945DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53559
- Aircraft time: 39,834 hours, 33,054 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Switch
- Condition: Failed
- Location: Parking Brake
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017013100856

## Discrepancy

ON APPROACH, AFTER LANDING GEAR LOWERED, THE PARKING BRAKE ILLUMINATED, QRH PROCEDURE COMPLIED WITH.  TROUBLESHOT. REMOVED AND REPLACED SWITCH S1-130 AND AACU IAW MM  OPERATION CHECKS GOOD.

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