# SDR DALA1247489223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2012
- Submitted: September 13, 2012
- Operation: Air carrier
- Aircraft: N923DN
- 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: 53585
- Aircraft time: 33,664 hours, 23,345 cycles
- System (JASC): [5260 · Entrance Stairs](https://openairdocs.org/jasc/5260)
- Part: Bolt
- Condition: Broken
- Location: Catwalk
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1247489223

## Discrepancy

DURING SERVICE CHECK, MAINTENANCE FOUND CATWALK IS DOWN WHEN AFT STAIRS ARE DOWN AND WILL NOT GO UP IN STOWED POSTION.  REPLACED BROKEN BOLT AND TORQUE TUBE ADAPTER PER AMM.

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