# SDR UG8AGM06001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2006
- Submitted: January 30, 2006
- Operation: Air carrier
- Aircraft: N5101
- Make and model: Gulstm GV
- Aircraft serial: 550
- Aircraft time: 4,666 hours, 2,202 cycles
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: Actuator
- Part number: 1159H202603
- Condition: Bypassing
- Location: Nlg
- Part time: 4,666 hours, 2,202 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UG8AGM06001

## Discrepancy

ON APPROACH, NOSE LANDING GEAR DID NOT EXTEND NORMALLY.  EXTENDED GEAR USING EMERGENCY PROCEDURE.  ANALYSIS REVEALED NOSE LANDING GEAR UPLOCK ACTUATOR BYPASSING HYDRAULIC FLUID.  REMOVED AND REPLACED NOSE GEAR UPLOCK ACTUATOR.  PERFORMED OPERATIONAL TEST PER GULFSTREAM MAINTENANCE MANUAL.  OPERATIONAL TEST WAS GOOD AND AIRCRAFT RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.