# SDR 2000UALA00452

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2000
- Submitted: October 4, 2000
- Operation: Air carrier
- Aircraft: N320UA
- Make and model: Boeing 737322
- Aircraft serial: 23952
- Aircraft time: 38,754 hours, 20,751 cycles
- Engine: Ge CFM56*
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Safety Switch
- Part number: S106
- Condition: Failed
- Location: Mlg
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2000UALA00452

## Discrepancy

LANDING GEAR WOULD NOT RETRACT.  *S/D*  FOUND SAFTEY SWITCH-AIR SENSING (S106) OPEN.  REPLACED S106 SAFETY SWITCH, OPERATIONAL CHECK OK.

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