 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A g-iv diverted to an airport with a longer runway when the nose gear failed to give a down and locked indication. They landed without incident at the diversion airport but found the overcenter strut had failed to correctly position itself. A pin was inserted after forcing it overcenter and the aircraft was taxied to parking.
| Attributes | |
| ACN | 1137838 |
| Time | |
| Date | 201312 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Gulfstream IV / G350 / G450 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
When the landing gear handle was lowered for landing; the landing gear didn't move and we got lh hydraulic low quantity and fail amber cas messages. We consulted the appropriate checklist and blew the gear down. The mains indicated down and locked but the nose gear did not. I called company and [we decided to] divert to ZZZ. We ran through checklists; consulted with acp; maintenance and the manufacturer. We tried alternate procedures provided by the manufacturer but the nose gear still indicated not down. We performed fly bys at both airports and gear appeared to be down but the taxi light on nose gear did not illuminate. When all options were exhausted we decided to land with the concurrence of all. Flight attendant had been kept in loop and he did a great job with [passengers.] I went aft and briefed the passengers. We then landed without problem but since the nose gear wasn't [locked] down couldn't pin gear. Eventually; the over center strut was forced into position manually and the gear was pinned. We were then able to taxi to parking without assistance. The passengers deplaned normally.past training was a big help but you are never totally ready for something like this. The first officer did a great job in right seat.
Original NASA ASRS Text
Title: A G-IV diverted to an airport with a longer runway when the nose gear failed to give a down and locked indication. They landed without incident at the diversion airport but found the overcenter strut had failed to correctly position itself. A pin was inserted after forcing it overcenter and the aircraft was taxied to parking.
Narrative: When the landing gear handle was lowered for landing; the landing gear didn't move and we got LH Hydraulic low quantity and fail amber CAS messages. We consulted the appropriate checklist and blew the gear down. The mains indicated down and locked but the nose gear did not. I called company and [we decided to] divert to ZZZ. We ran through checklists; consulted with ACP; Maintenance and the Manufacturer. We tried alternate procedures provided by the Manufacturer but the nose gear still indicated not down. We performed fly bys at both airports and gear appeared to be down but the taxi light on nose gear did not illuminate. When all options were exhausted we decided to land with the concurrence of all. FA had been kept in loop and he did a GREAT job with [passengers.] I went aft and briefed the passengers. We then landed without problem but since the nose gear wasn't [locked] down couldn't pin gear. Eventually; the over center strut was forced into position manually and the gear was pinned. We were then able to taxi to parking without assistance. The passengers deplaned normally.Past training was a big help but you are never totally ready for something like this. The First Officer did a great job in right seat.
Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.