Individually Owned: 151,845
Corporate Owned: 143,699
Missoula Airport
Aircraft Accident/Incident Report
Missoula, Montana 59801
Monday, January 27, 1986 13:52 MST
NTSB Narrative Summary Released at Completion of Accident
THE HELICOPTER, EQUIPPED WITH LANDING SKID SNOW PADS, WAS PARKED ON A NARROW RAMP EXTENSION TO A ROOF TOP HELIPAD THAT WAS SURROUNDED BY A CONCRETE CURB. UPON TAKEOFF TO A HOVER, THE RIGHT SNOW PAD STRUCK AND BECAME MOMENTARTILY CAUGHT ON BOLTS PROTRUDING FROM THE TOP OF THE CURB LOCATED ON THE RIGHT SIDE OF THE HELICOPTER, RESULTING IN A RIGHT ROLLING ACTION OF THE HELICOPTER. THE LIFT FORCES BENT THE SNOW PAD, SUDDENLY DISENGAGING IT FROM THE BOLTS, AT WHICH TIME THE ACFT SUDDENLY ACCELERATED TOWARD A BUILDING. AS THE PILOT WAS ATTEMPTING TO REGAIN CONTROL TO AVOID IMPACT WITH THE BUILDING, THE TAIL ROTOR STRUCK THE ROOF TOP AND ANTI-TORQUE CONTROL WAS LOST. THE ACFT SPUN TO THE RIGHT UNTIL IMPACT ON THE HELIPAD.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 1/27/1986 |
| Event Day of the Week | Monday |
| Time of Event | 1352 |
| Event Time Zone | Mountain Standard Time |
| Event City | MISSOULA |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59801 |
| Event Date Year | 1986 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MISSOULA |
| Event Location Nearest Airport ID | MSO |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 5 |
| Degrees magnetic from airport | 305 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 1350 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 125 |
| Weather Observation Facility ID | MSO |
| Elevation of weather observation facility | 3226 |
| Distance of event from weather observation facility (units?) | 4 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 5500 |
| Lowest Non-Ceiling Height | 5500 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 15 |
| Air Temperature at event time (in degrees celsius) | -3 |
| Dew Point at event time (in degress fahrenheit) | -7 |
| Wind Direction (degrees magnetic) | 260 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 1566 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 498 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jan 27 1986 12:00AM |
| NTSB Notification Time | 1500 |
| Fiche Number and/or location -used to find docket information | 30790 |
| Date of most recent change to record | Jan 10 2001 2:24PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5019K |
| NTSB Number | DEN86FA069 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BELL |
| Aircraft Model | 206L-1 |
| Aircraft Series Identifier | 206L-1 |
| Aircraft Serial Number | 45229 |
| Certified Max Gross Weight | 4150 |
| 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 | 7 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Nov 5 1985 12:00AM |
| Airframe hours since last inspection | 75 |
| Airframe Hours | 2978 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | |
| Aircraft Owner Street Address | |
| Aircraft Owner City | |
| Aircraft Owner State | |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | |
| Operator is an individual? | -- |
| Operator Name | MINUTEMAN AVIATION |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 5225 HWY 10 WEST, BOX 16 |
| Operator City | MISSOULA |
| Operator State | MT |
| Operator Country | |
| Operator Zip code | 59802 |
| Operator Code | MINA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | External Load |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1352 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | |
| Destination City | CLEARWATER JCT |
| Destination State | MT |
| Destination Country | |
| Specific Phase of Flight | Descent |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 10 2001 2:56PM |
| 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 | -- |