Individually Owned: 150,657
Corporate Owned: 137,281
Stan Stamper Municipal Airport
Aircraft Accident/Incident Report
Hugo, Oklahoma 74743
Sunday, April 29, 2012 CDT
NTSB Narrative Summary Released at Completion of Accident
A check airman was giving the pilot-in-command (PIC) an annual check ride with night vision goggles in the emergency medical service helicopter. After a satisfactory slope landing, the PIC repositioned the helicopter to a flat area and performed a hovering autorotation, which resulted in a hard landing. The check airman then demonstrated a second hovering autorotation, and the PIC performed another hovering autorotation that was satisfactory. The check airman continued the annual check ride. After the flight, during a post-flight examination, substantial damage was discovered to the tail boom and the aft portion of the fuselage. The damage was consistent with a hard landing, presumably incurred during the first hovering autorotation in which the helicopter landed hard. In a statement provided to the NTSB, the check airman said that he should have guarded the collective more to limit the amount of control input during the practice autorotation maneuvers.
NTSB Probable Cause Narrative
The pilot’s inadequate collective control inputs while performing a hovering autorotation, which resulted in a hard landing. Contributing to the accident was the check airman's delayed remedial action.
Event Information
| Type of Event | Accident |
| Event Date | 4/29/2012 |
| Event Day of the Week | Sunday |
| Time of Event | 40 |
| Event Time Zone | Central Daylight Time |
| Event City | Hugo |
| Event State | OKLAHOMA |
| Event Country | -- |
| Zipcode of the event site | 74743 |
| Event Date Year | 2012 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 340201N |
| Event Location Longitude | 0953219W |
| Event Location Airport | Stan Stamper Municipal Airport |
| Event Location Nearest Airport ID | HHW |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 572 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 35 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 164 |
| Weather Observation Facility ID | KPRX |
| Elevation of weather observation facility | 547 |
| Distance of event from weather observation facility (units?) | 24 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Night |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| 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) | 22 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 170 |
| 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) | 29.93 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | KPRX 290555Z AUTO 16007KT 10SM CLR 21/18 A2994 RMK |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 29949 |
| NTSB Notification Source | FAA ASW Regl Opns Center - Ft |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jun 5 2012 12:16PM |
| User who most recently changed record | bowl |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N406EM |
| NTSB Number | CEN12CA269 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | EUROCOPTER |
| Aircraft Model | AS 350 B2 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 9042 |
| Certified Max Gross Weight | 4961 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 2 |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Apr 25 2012 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 6530 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | C126 |
| Aircraft Owner Name | WELLS FARGO EQUIPMENT FINANCE INC |
| Aircraft Owner Street Address | C/O EAGLEMED LLC |
| Aircraft Owner City | WICHITA |
| Aircraft Owner State | KS |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 67209-2926 |
| Operator is an individual? | No |
| Operator Name | EAGLE MED LLC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 6601 W PUEBLO DR |
| Operator City | WICHITA |
| Operator State | KS |
| Operator Country | USA |
| Operator Zip code | 67209-2926 |
| Operator Code | 7EMA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | 7EMA575M |
| 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 | Yes |
| Departure Airport Code | HHW |
| Departure City | Hugo |
| Departure State | OK |
| Departure Country | USA |
| Departure Time | 26 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | HHW |
| Destination City | Hugo |
| Destination State | OK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | May 30 2012 3:29PM |
| User who most recently changed record | latt |
| 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 | Yes |
| Medical Flight | -- |