Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Phoenix, Arizona 85034
Tuesady, June 10, 2003 18:45 MST
NTSB Narrative Summary Released at Completion of Accident
The helicopter landed hard and rolled over during a power recovery from a practice autorotation. The certified flight instructor (CFI) stated that he and the student experienced a "total rotor stall" due to a failure to do a power recovery. He and the student had performed a series of autorotations prior to the eventful one. The entry and glide were "very well managed, the student nailed his rpm control and pitch in the glide." During the level off from the flare, the student was beginning to raise the collective as power was restored. The CFI told the student to begin rolling on the throttle, simultaneously reaching for the throttle himself to assist the student in rolling it on. However, the student firmly gripped the throttle and rolled it off. The instructor reported that he could not override the student's input prior to a main rotor rpm decay that caused the helicopter to land hard. Due to gusty wind conditions, the helicopter was blown off course and came to rest on its left side in a mature cactus (cholla) bed. Flight and throttle control continuity was established and no preimpact anomalies were found.
NTSB Probable Cause Narrative
The student pilot's improper use of the throttle control, the certified flight instructor (CFI) inadequate supervision, and the student's control interference, which resulted in a loss of main rotor rpm.
Event Information
| Type of Event | Accident |
| Event Date | 6/10/2003 |
| Event Day of the Week | Tuesday |
| Time of Event | 1845 |
| Event Time Zone | Mountain Standard Time |
| Event City | Phoenix |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 85034 |
| Event Date Year | 2003 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 334118N |
| Event Location Longitude | 1120457W |
| 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 | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1853 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | KDVT |
| Elevation of weather observation facility | 1478 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| 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) | 33 |
| Dew Point at event time (in degress fahrenheit) | -1 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 14 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29.77 |
| Density Altitude (feet) | 4123 |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| 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) | 16367 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Jun 10 2003 12:00AM |
| NTSB Notification Time | 1930 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 29 2004 1:02PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | SDL-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7508D |
| NTSB Number | LAX03LA191 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Robinson |
| Aircraft Model | R-22 Beta |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 3330 |
| Certified Max Gross Weight | 1370 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 8 2003 12:00AM |
| Airframe hours since last inspection | 12.5 |
| Airframe Hours | 1269 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Delta Leasing, Inc. DBA |
| Aircraft Owner Street Address | 2370 S Airport Blvd |
| Aircraft Owner City | Chandler |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 85249 |
| Operator is an individual? | No |
| Operator Name | Quantum Helicopters |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2370 S Airport Blvd |
| Operator City | Chandler |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 85249 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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 | KSDL |
| Departure City | Scottsdale |
| Departure State | AZ |
| Departure Country | USA |
| Departure Time | 1730 |
| Departure Time Zone | MST |
| 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? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Aug 6 2004 6:13PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |