# SDR DLM88010310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2001
- Submitted: February 23, 2001
- Operation: Air carrier
- Aircraft: N918DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49583
- Aircraft time: 35,541 hours, 29,909 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Uplock Switch
- Condition: Failed
- Location: Aft Airstair Dr
- Component: Switches
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88010310

## Discrepancy

AIR TURNBACK, AFT AIRSTAIR DOOR ILLUMINATED DURING CLIMBOUT.  VERIFIED DOOR CLOSED AND FWD TO MCO.  REPLACED UPLOCK SWITCHES S1-276 AND S1-277, LIGHT CHKS GOOD.

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