Santa Rosa Airport
Aircraft Accident/Incident Report

Santa Rosa, California 95403
Tuesady, September 28, 2004 15:05 PDT

NTSB Narrative Summary Released at Completion of Accident

During a hover taxi on a company 14 CFR Part 135 pilot checkride, the helicopter did a series of fore and aft skid collisions with the taxiway, and the tail rotor separated from the helicopter. The purpose of the flight was for one of the company pilots to complete a initial instrument check ride. As the examinee taxied the helicopter for departure, the check pilot retarded the number 1 engine to a partial power setting. The examinee lowered the collective. The helicopter skids contacted the ground and it bounced into the air in a nose-low attitude. This was followed by a ground contact on the toes of the skids, and an additional bounce. During the second bounce, aft cyclic was applied, and the tail rotor contacted the ground and broke from the helicopter. The helicopter bounced and began turning to the right. The check pilot applied power to the number 1 engine and the forward portion of the skids contacted the ground while the helicopter turned to the right. The helicopter spun approximately 270 degrees about 10 feet above ground level. After 1 to 1 1/2 turns, the check pilot assumed control of the helicopter. He leveled the helicopter and applied full left pedal. The spin continued until he closed both throttles and performed a hovering autorotation. Neither the check pilot, nor the examinee reported any mechanical malfunctions with the helicopter prior to the accident. The chief pilot said the check airman responded in accordance with current company policy and procedures.

NTSB Probable Cause Narrative

the pilot-in-command's (examinee's) incorrect collective control response to a simulated power loss of the number 1 engine.

Event Information

Type of Event Accident
Event Date 9/28/2004
Event Day of the Week Tuesday
Time of Event 1505
Event Time Zone Pacific Daylight Time
Event City Santa Rosa
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95403
Event Date Year 2004
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 383032N
Event Location Longitude 1224846W
Event Location Airport Santa Rosa
Event Location Nearest Airport ID STS
Indicates whether the acc/inc occurred off or on an airport On Airport
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
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID STS
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16982
NTSB Notification Source FAA
NTSB Notification Date Sep 28 2004 12:00AM
NTSB Notification Time 1615
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2004 12:45PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-OAK-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N222UT
NTSB Number LAX04CA332
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Bell
Aircraft Model 222U
Aircraft Series Identifier --
Aircraft Serial Number 47559
Certified Max Gross Weight --
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 --
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name California Shock Trauma Air Rescue
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name CALIFORNIA SHOCK-TRAUMA AIR RESCUE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Hayward
Operator State CA
Operator Country USA
Operator Zip code --
Operator Code STRA
Owner has at least one certificate --
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 --
Departure Point Same as Event Yes
Departure Airport Code STS
Departure City Santa Rosa
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code APC
Destination City Napa
Destination State CA
Destination Country USA
Specific Phase of Flight Maneuvering
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Oct 22 2004 12:29PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --