# SDR SWAA991942

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N689SW
- Make and model: Boeing 737-3Q8
- Registry model: [Boeing 737-3Q8](https://openairdocs.org/model/boeing-737-3q8) (OpenAirDocs)
- Aircraft serial: 23387
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Line
- Part number: BACH8B04NN166T
- Condition: Ruptured
- Location: Nlg
- Stage of operation: TO
- Nature of condition: K, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA991942

## Discrepancy

AIR TURNBACK, NLG FAILED TO RETRACT DURING TAKEOFF.  FOUND RUPTURED NLG DOWNLOCK ACTUATOR HYDRAULIC PRESS LINE.  REMOVED AND REPLACED LINE PER MM.

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