# SDR DLM90091866

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2009
- Submitted: December 1, 2009
- Operation: Air carrier
- Aircraft: N906DA
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53386
- Aircraft time: 38,959 hours, 20,871 cycles
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Door
- Condition: Out Of Rig
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM90091866

## Discrepancy

AFTER RAISING LANDING GEAR ON T/O EXPERIENCED VERY LOUD VIBRATION IN NOSE AREA.  SLOWED DOWN PUT GEAR DOWN AND NOISE DECREASED MAX SPEED 200 KTS VIBRATION VBS.  STILL BAD AT 160 KTS.  RIGGED NOSE DOORS PER M/M.  CYCLED GEAR SEVERAL TIMES, ALL INDICATIONS NORMAL.  OK FOR SERVICE.

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