Individually Owned: 150,657
Corporate Owned: 137,281
Clay County Regional Airport
Aircraft Accident/Incident Report
Mosby, Missouri 64024
Friday, April 18, 2008 17:05 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot had been practicing maneuvers in preparation to taking his commercial helicopter practical test. At the completion of these maneuvers, he planned on making a normal approach, terminating in a hover. While on base leg and descending through 1,300 feet, the pilot started slowing to 70 knots. He lowered the collective control and reduced power momentarily. When he opened the throttle again, there was no response from the engine. He initiated an autorotation. Shortly thereafter, he heard the engine running and the engine instruments were reading normal. He decided to attempt a landing on the nearby runway. When he increased the collective and applied forward cyclic, the engine lost power again. The helicopter was low and the pilot attempted to slow down by using aft cyclic control. The helicopter then impacted muddy terrain.
NTSB Probable Cause Narrative
A loss of engine power for reasons undetermined, and the pilot's decision to discontinue the autorotation when he thought engine power had been restored. Contributing to the accident were the low altitude and excessive airspeed.
Event Information
| Type of Event | Accident |
| Event Date | 4/18/2008 |
| Event Day of the Week | Friday |
| Time of Event | 1705 |
| Event Time Zone | Central Daylight Time |
| Event City | Mosby |
| Event State | MISSOURI |
| Event Country | -- |
| Zipcode of the event site | 64024 |
| Event Date Year | 2008 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 391995N |
| Event Location Longitude | 0941858W |
| Event Location Airport | Clay County Regional |
| Event Location Nearest Airport ID | GPH |
| 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 | 774 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1653 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 258 |
| Weather Observation Facility ID | MCI |
| Elevation of weather observation facility | 1026 |
| Distance of event from weather observation facility (units?) | 26 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1200 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 5 |
| Air Temperature at event time (in degrees celsius) | 8 |
| Dew Point at event time (in degress fahrenheit) | 6 |
| Wind Direction (degrees magnetic) | 280 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.73 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 24125 |
| NTSB Notification Source | FAA Central Region |
| NTSB Notification Date | Apr 18 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Aug 28 2008 3:01PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Kansas City, Missouri |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N56895 |
| NTSB Number | DEN08LA081 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Enstrom |
| Aircraft Model | F28C |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 471 |
| Certified Max Gross Weight | 2350 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Nov 1 2007 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 3147 |
| ELT Installed | No |
| ELT Activated | -- |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | Worley Bird Aviation, LLC |
| Aircraft Owner Street Address | 702 Quincy Blvd. |
| Aircraft Owner City | Smithville |
| Aircraft Owner State | MO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 64089 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | -- |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | GPH |
| Departure City | Mosby |
| Departure State | MO |
| Departure Country | USA |
| Departure Time | 1630 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | GPH |
| Destination City | Mosby |
| Destination State | MO |
| Destination Country | USA |
| Specific Phase of Flight | Descent - emergency |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 14 2008 4:29PM |
| User who most recently changed record | BOWL |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 18 |
| Runway Length | 5502 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |