Individually Owned: 150,657
Corporate Owned: 137,281
Henderson Executive Airport
Aircraft Accident/Incident Report
Henderson, Nevada 89052
Tuesady, January 27, 2009 11:10 PST
NTSB Narrative Summary Released at Completion of Accident
During a post-maintenance test flight following the replacement of both the engine-driven hydraulic pump and the hydraulic power pack, both main landing gear failed to fully extend. The overhauled pump and the serviceable power pack were replaced as corrective action to address a repetitive problem with the airplane's hydraulically driven landing gear and flap actuating systems. Although the landing gear had been extended with the emergency extension hand pump during the preceding post-maintenance test flight (when the gear failed to fully extend using the normal system), it failed to do so during the accident flight. The pilot therefore landed with the main gear partially extended, resulting in the airplane departing the runway and impacting rough terrain. A series of post-accident inspections and tests did not reveal any evidence of anomalies, malfunctions, or leaks associated with the airplane's hydraulic plumbing, hydraulic fittings, or engine-driven hydraulic pump. The hydraulic power pack, which controls the function of the flap system, as well as both the normal and emergency gear extension and retraction systems, was also tested and disassembled for internal inspection. Although the power pack , which was described by the testing technician as an older unit needing overhaul, displayed a number of minor discrepancies during the testing and inspection process, it successfully passed a functional test sequence. The technician also stated that the power pack may have failed to operate the flaps, the normal landing gear extension, and emergency landing gear extension modes because of particulate contamination of the fluid restricting the movement or alignment of a poppet valve. He stated that any such contamination might be dislodged by the impact forces created during the accident sequence, and then flushed from the system by the flow of fluid during the functional bench test sequence.
NTSB Probable Cause Narrative
An undetermined failure of the hydraulic power pack to fully extend the main landing gear through both the normal and emergency systems.
Event Information
| Type of Event | Accident |
| Event Date | 1/27/2009 |
| Event Day of the Week | Tuesday |
| Time of Event | 1110 |
| Event Time Zone | Pacific Standard Time |
| Event City | Henderson |
| Event State | NEVADA |
| Event Country | -- |
| Zipcode of the event site | 89052 |
| Event Date Year | 2009 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 355822N |
| Event Location Longitude | 1150804W |
| Event Location Airport | Henderson Executive Airport |
| Event Location Nearest Airport ID | KHND |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 3300 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Pilot |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 10000 |
| Sky/Lowest/Cloud Conditions | Few |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 25999 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Aug 26 2009 6:19PM |
| User who most recently changed record | eckd |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N210TF |
| NTSB Number | WPR09LA100 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 210A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 21057793 |
| Certified Max Gross Weight | 2870 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jan 1 2008 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 4627 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Robert Hoffman |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Henderson |
| Aircraft Owner State | NV |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 89011 |
| Operator is an individual? | No |
| Operator Name | Mojave Aviation |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Henderson |
| Operator State | NV |
| Operator Country | USA |
| Operator Zip code | 89011 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Flight Test |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | KHND |
| Departure City | Henderson |
| Departure State | NV |
| Departure Country | USA |
| Departure Time | 1000 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | KHND |
| Destination City | Henderson |
| Destination State | NV |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 5 2009 2:56PM |
| User who most recently changed record | stam |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 35R |
| Runway Length | 5001 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |