# SDR DXTA201307115442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2013
- Submitted: July 11, 2013
- Operation: Air carrier
- Aircraft: [N939QS](https://openairdocs.org/aircraft/N939QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500193
- Aircraft time: 10,436 hours, 6,258 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Unknown
- Condition: Unknown
- Location: Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA201307115442

## Discrepancy

AFTER TAKEOFF, INTERMITTENT NOSE GEAR THUMPING SOUND FROM THE NOSE GEAR WAS NOTICED.   UNLOCK LIGHT BLINKING.  AT A LESSER FREQUENCY HAPPENED SEVERAL TIMES DURING FLIGHT. ON DESCENT AT ABOUT FL220 IS STARTED NON STOP. GEAR EXTENDED AT ABOUT 17000FT TO STOP IT.

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