Individually Owned: 151,845
Corporate Owned: 143,699
Aircraft Accident/Incident Report
Jetmore, Kansas 67854
Tuesady, July 27, 1999 17:30 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot said he was going to practice an auto rotation. He said he '...rolled the throttle back to idle position and dropped the collective...[and]noted a red light on the dash and could hear the engine had quit running.' He said the subsequent auto rotation '...terminated in a hard landing.' The on-scene investigation revealed flight and powerplant control operational continuity and fuel in the accident helicopter's fuel tanks. The engine was test run and its low idle was 1,300 rpm. According to a representative from a company that maintains and rebuilds helicopters like that of the accident helicopter, '...it is possible for an engine to die when a rapid roll-off of [the] throttle is accomplished and too low an idle RPM setting exists.' The FAA Approved Flight Manual said that the pilot should 'Split the needles by lowering the collective while maintaining throttle setting. The throttle correlation will establish a high idle RPM (approximately 2500 RPM) and will prevent the engine from loading up or stalling on recovery.'
NTSB Probable Cause Narrative
The pilot's use of improper procedures by not following the helicopter manufacturer's recommended engine RPM reduction procedures during autorotations. A factor was the pilot not attaining the proper rotor RPM during the autorotation practice.
Event Information
| Type of Event | Accident |
| Event Date | 7/27/1999 |
| Event Day of the Week | Tuesday |
| Time of Event | 1730 |
| Event Time Zone | Central Daylight Time |
| Event City | JETMORE |
| Event State | KANSAS |
| Event Country | -- |
| Zipcode of the event site | 67854 |
| Event Date Year | 1999 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1756 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 190 |
| Weather Observation Facility ID | DCC |
| Elevation of weather observation facility | 2594 |
| Distance of event from weather observation facility (units?) | 25 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 8000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 36 |
| Dew Point at event time (in degress fahrenheit) | 17 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1157 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jul 28 1999 12:00AM |
| NTSB Notification Time | 1112 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 23 2001 9:35AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N88007 |
| NTSB Number | CHI99LA257 |
| Missing Aircraft Indicator | N |
| 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 | Schweizer |
| Aircraft Model | 269C |
| Aircraft Series Identifier | 269C |
| Aircraft Serial Number | S1546 |
| Certified Max Gross Weight | 2150 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| 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 | AAIP |
| Date of Last Inspection | Jul 7 1999 12:00AM |
| Airframe hours since last inspection | 8 |
| Airframe Hours | 907 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | SILVER HAWK SECURITY, INC. |
| Aircraft Owner Street Address | P.O. BOX 333 |
| Aircraft Owner City | LINCOLN |
| Aircraft Owner State | NE |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 68516 |
| Operator is an individual? | -- |
| 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? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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 | No |
| Departure Airport Code | HYS |
| Departure City | HAYES |
| Departure State | KS |
| Departure Country | |
| Departure Time | 1645 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Descent |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 23 2001 11:29AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |