Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Milford, Iowa 51351
Wednesday, May 6, 1992 7:35 CDT
NTSB Narrative Summary Released at Completion of Accident
THE PILOT OF THE ACCIDENT HELICOPTER REPORTED A COMPLETE LOSS OF ENGINE POWER WHILE PERFORMING AERIAL APPLICATION OF AGRICULTURAL CHEMICALS. THE FAILURE OCCURRED AS HE WAS TURNING TO REVERSE DIRECTION BETWEEN SWATH RUNS. THE PILOT STATED HE RETURNED TO LEVEL FLIGHT AND ENTERED AUTOROTATION. HE STATED HIS MAIN ROTOR RPM WAS LOW WHEN HE APPLIED COLLECTIVE PITCH TO CUSHION THE AUTOROTATIVE LANDING AND THE HELICOPTER LANDED HARD. DURING TOUCHDOWN THE SKID LANDING GEAR COLLAPSED AND THE HELICOPTER ROLLED ONTO ITS RIGHT SIDE. NO MECHANICAL DEFECTS WERE DISCOVERED WHEN THE ENGINE WAS EXAMINED AFTER THE ACCIDENT.
NTSB Probable Cause Narrative
A TOTAL LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON AS THE HELICOPTER WAS PERFORMING AERIAL APPLICATION MANEUVERS.
Event Information
| Type of Event | Accident |
| Event Date | 5/6/1992 |
| Event Day of the Week | Wednesday |
| Time of Event | 735 |
| Event Time Zone | Central Daylight Time |
| Event City | MILFORD |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 51351 |
| Event Date Year | 1992 |
| Event Date Month | 5 |
| 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 | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 20 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| 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 | FAA |
| NTSB Docket Number (internal use) | 2761 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 47546 |
| Date of most recent change to record | Dec 11 2000 2:54PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8286 |
| NTSB Number | CHI92DCD04 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 137: Agricultural |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | HILLER |
| Aircraft Model | UH-12E |
| Aircraft Series Identifier | UH-12E |
| Aircraft Serial Number | 1543 |
| Certified Max Gross Weight | 6800 |
| 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 | 3 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Sep 16 1991 12:00AM |
| Airframe hours since last inspection | 63 |
| Airframe Hours | 4278 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | BONANZA VALLEY AVIATION |
| Aircraft Owner Street Address | RR 1 BOX 24 |
| Aircraft Owner City | BENSON |
| Aircraft Owner State | MI |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 56215 |
| Operator is an individual? | -- |
| Operator Name | WARREN JACKSON |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | RR 1 BOX 24 |
| Operator City | BENSON |
| Operator State | MI |
| Operator Country | |
| Operator Zip code | 56215 |
| Operator Code | PVMG |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Agriculture |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Unknown |
| Indicates Domestic or International Flight | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown |
| Type of Flying (Per_Bus / Primary) | Aerial Application |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 715 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| 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 | -- |