# SDR DXTA2010011103940

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2010
- Submitted: January 11, 2010
- Operation: Air carrier
- Aircraft: [N938QS](https://openairdocs.org/aircraft/N938QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500183
- Aircraft time: 7,724 hours, 4,598 cycles
- System (JASC): [5280 · Landing Gear Doors](https://openairdocs.org/jasc/5280)
- Part: Door
- Condition: Damaged
- Location: Nlg
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2010011103940

## Discrepancy

AT FL410, OBSERVED A BUMP & SHUTTER APPEARING TO COME FROM NLG. RED GEAR UNLOCK ILLUM & REMAINED ON UNTIL MLG DOWN. ON POST FLT INSP FOUND RT NLG DOOR SHOWED EVIDENCE OF OVERSTRESS.  WHEN MLG SELECTED DOWN SYS OPS NORMAL, 3 GREEN DOWN & LOCKED & NO RED UNLOCKED.  INSTALLED NEW NLG DOOR ON RT SIDE IAW MM 52-80-20. OPS CHECK GOOD. REMOVED UPLOCK ROLLER BRACKETS. INSTALLED 2 NEW BRACKETS DUE TO DAMAGE.  SUSPECT BRACKETS DAMAGED FROM OTHER THAN THIS DISCREPANCY. INSTALLED NEW UPLOCK ROLLER. COMPLETED SEVERAL CYCLES. OPS GOOD. REMOVED MLG DOOR TORQUE TUBE & PILLOW BLOCKS. INSPECTED CLEANED & RELUBED PILLOW BLOCKS & TORQUED TORQUE TUBE & SAFETIED.  TUBE ROTATES FREELY IN BLOCKS.

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