Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Henryetta, Oklahoma 74880
Wednesday, February 23, 2011 16:20 CST
NTSB Narrative Summary Released at Completion of Accident
The helicopter was facing into the wind and hovering, with an external load, over an open field adjacent to the work area. The pilot made a 180-degree right pedal turn to enter the work area, approximately 120 feet above the ground. While trimming for the left quartering tailwind, he heard a loud "pop" and felt a "thump" in his seat. He was unable move the cyclic control to the left, and the helicopter started a right banking turn. The helicopter rolled sharply to the right and impacted the ground. A postaccident examination of the helicopter revealed no discrepancies. Flight control continuity was established from the cockpit to the flight controls. When the flight controls were manipulated, no obstructions or binding were noted.
NTSB Probable Cause Narrative
Failure of the cyclic control system for reasons undetermined.
Event Information
| Type of Event | Accident |
| Event Date | 2/23/2011 |
| Event Day of the Week | Wednesday |
| Time of Event | 1620 |
| Event Time Zone | Central Standard Time |
| Event City | Henryetta |
| Event State | OKLAHOMA |
| Event Country | -- |
| Zipcode of the event site | 74880 |
| Event Date Year | 2011 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 352234N |
| Event Location Longitude | 0960249W |
| 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 | 1610 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 355 |
| Weather Observation Facility ID | OKM |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | 20 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 4600 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 15 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.87 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KOKM 232010Z AUTO 20008KT 10SM SCT046 24/15 |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 28583 |
| NTSB Notification Source | NTSB Communications Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Aug 16 2011 10:06AM |
| User who most recently changed record | andj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N112AS |
| NTSB Number | CEN11LA200 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 133: Rotorcraft Ext. Load |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | HUGHES |
| Aircraft Model | 369D |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 900808D |
| Certified Max Gross Weight | 3000 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | 1 |
| 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 | Feb 16 2011 12:00AM |
| Airframe hours since last inspection | 29 |
| Airframe Hours | 27823 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Aerial Solutions, Inc. |
| Aircraft Owner Street Address | 7074 Ramsey Ford Rd. |
| Aircraft Owner City | Tabor City |
| Aircraft Owner State | NC |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 28463-9130 |
| Operator is an individual? | No |
| Operator Name | Aerial Solutions, Inc. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Tabor City |
| Operator State | NC |
| Operator Country | USA |
| Operator Zip code | 28463-9130 |
| Operator Code | SJKL |
| 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 | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | External Load |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | -- |
| Departure City | Henryetta |
| Departure State | OK |
| Departure Country | USA |
| Departure Time | 1600 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | NONE |
| Destination City | Henryetta |
| Destination State | OK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 8 2011 2:09PM |
| User who most recently changed record | scoa |
| 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 | -- |