# SDR UPS01235105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2001
- Submitted: March 5, 2001
- Operation: Air carrier
- Aircraft: [N904UP](https://openairdocs.org/aircraft/N904UP), registered now
- Make and model: Boeing 727-51C
- Registry model: [Boeing 727-51C](https://openairdocs.org/model/boeing-727-51c) (OpenAirDocs)
- Aircraft serial: 18946
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Switch
- Condition: Out Of Adj
- Location: Mlg
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS01235105

## Discrepancy

INSPECTION TYPE:N/A ATB-AIR/GROUND SAFETY SENSOR FAILED IN GROUND ILLEG BUT LANDING GEAR RETRACTED NORMALLY.  REPOSITION MAIN GEAR SAFETY SWITCH ILLEG AND PERFORMED SWITCH OPS CHECK AS PER B727 M/M 32-0211.  NO DEFECTS NOTED.

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