Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Idledale, Colorado 80453
Sunday, April 4, 2010 7:45 MDT
NTSB Narrative Summary Released at Completion of Accident
The helicopter flight instructor and private pilot were conducting an approach to a pinnacle landing pad. Two previous passes were made and both pilots estimated winds to be from the northeast at 8 knots. While approaching the landing pad from the southwest, the flight instructor noticed that the helicopter's rpms were slightly low and he reminded the private pilot to increase power until the rpms were in the green arc of the rpm gauge. The private pilot did not increase power sufficiently enough to place the rotor rpm in the green arc and the helicopter began to descend rapidly. The flight instructor took control of the helicopter, increased power, and attempted to reverse course and travel downhill. The helicopter landed hard, bounced, and rolled approximately 1 1/4 times before coming to rest on its right side and sustaining substantial damage to its fuselage and tail boom. An examination of the airframe by a Federal Aviation Administration inspector did not reveal any preimpact anomalies. Additionally, neither pilot reported a malfunction of the airframe or engine.
NTSB Probable Cause Narrative
The flight instructor's delayed remedial actions to regain rotor rpm, resulting in a rapid descent and hard landing.
Event Information
| Type of Event | Accident |
| Event Date | 4/4/2010 |
| Event Day of the Week | Sunday |
| Time of Event | 745 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Idledale |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80453 |
| Event Date Year | 2010 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 394013N |
| Event Location Longitude | 1051311W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 749 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 1 |
| Weather Observation Facility ID | KBJC |
| Elevation of weather observation facility | 5673 |
| Distance of event from weather observation facility (units?) | 15 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 8500 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | -- |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 2 |
| Dew Point at event time (in degress fahrenheit) | -7 |
| Wind Direction (degrees magnetic) | 350 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 16 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.8 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KBJC 041349Z 35016KT 30SM SCT085 02/M07 A298 |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26847 |
| NTSB Notification Source | NW ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Apr 20 2010 1:56PM |
| User who most recently changed record | bowl |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N67TK |
| NTSB Number | CEN10CA183 |
| 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 | SCHWEIZER |
| Aircraft Model | 269C |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | S1838 |
| Certified Max Gross Weight | 2050 |
| 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 | 100 Hour |
| Date of Last Inspection | Mar 30 2010 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1090 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | AERIAL RESOURCES LLC |
| Aircraft Owner Street Address | PO BOX 685 |
| Aircraft Owner City | FORT COLLINS |
| Aircraft Owner State | CO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 80522-0685 |
| Operator is an individual? | No |
| Operator Name | AERIAL RESOURCES LLC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | PO BOX 685 |
| Operator City | FORT COLLINS |
| Operator State | CO |
| Operator Country | USA |
| Operator Zip code | 80522-0685 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | KBJC |
| Departure City | BROOMFIELD |
| Departure State | CO |
| Departure Country | USA |
| Departure Time | 725 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | KBJC |
| Destination City | BROOMFIELD |
| Destination State | CO |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 19 2010 10:06AM |
| User who most recently changed record | aguj |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |