# SDR SWAA980084

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N390SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26593
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Mechanism
- Condition: Out Of Adjust
- Location: Nlg/Lt Mlg Door
- Stage of operation: CL
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA980084

## Discrepancy

AFTER TAKEOFF, CREW REPORTED A VERY PRONOUNCED SIDE TO SIDE VIBRATION, YAW DAMPER WAS THEN TURNED OFF, NO HELP.  DIVERTED TO PHX AND MADE AN UNEVENTFUL LANDING.  REPLACED RUDDER PCU AND YAW DAMPER COUPLING AS A PRECAUTION PER BOEING M/M.  AFTER FURTHER TROUBLESHOOTING AND TEST FLIGHTS, DURING GROUND GEAR RETRACTION TEST, FOUND NOSE GEAR AND LEFT MAIN GEAR DOORS OUT OF ADJUSTMENT.

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