Corvallis Municipal Airport
Aircraft Accident/Incident Report

Corvallis, Oregon 97333
Monday, April 4, 2005 17:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The student was at the controls as the instructional flight approached the airport from the east on a practice VOR-A approach. Because the student misunderstood the instructor’s directions to touch down on the numbers of Runway 17, he proceeded to a grassy area between the approach ends of Runway 35 and Runway 27. During the last part of his approach to the grassy area, the student had the helicopter headed into the wind, but when he was about 30 to 40 feet above the ground, he initiated a right turn in order to air-taxi to the helicopter landing pad. During that turn, the helicopter was exposed to a direct tailwind of between five to seven knots, and during that sequence of events, the student failed to maintain directional control, and the aircraft began spinning to the right. Although the instructor pilot took control of the aircraft, her remedial action was not taken soon enough to recover control before the helicopter's left skid impacted the terrain. After the skid hit the terrain, the aircraft rolled over onto its left side, where it came to rest. There were no issues with the helicopter's flight control system, nor any problem with the engine's production of power.

NTSB Probable Cause Narrative

The student pilot's failure to maintain directional control while attempting to turn in the direction necessary to air-taxi to the landing pad, and the flight instructor's failure to take remedial action soon enough to correct the problems created when the student lost directional control. Factors include a tailwind encountered by the aircraft during the aforementioned turn.

Event Information

Type of Event Accident
Event Date 4/4/2005
Event Day of the Week Monday
Time of Event 1700
Event Time Zone Pacific Daylight Time
Event City Corvallis
Event State OREGON
Event Country --
Zipcode of the event site 97333
Event Date Year 2005
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 442950N
Event Location Longitude 1231723W
Event Location Airport Corvallis Municipal
Event Location Nearest Airport ID KCVO
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 244
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1715 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KCVO
Elevation of weather observation facility 244
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 7500
Lowest Non-Ceiling Height 4900
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.14
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 18382
NTSB Notification Source FAA Operations Center
NTSB Notification Date Apr 4 2005 12:00AM
NTSB Notification Time 1745
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 17 2006 2:52PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Visual Meteorological Cond
FAA District Office Portland FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N303PR
NTSB Number SEA05LA070
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 1039
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 100 Hour
Date of Last Inspection Mar 10 2005 12:00AM
Airframe hours since last inspection 83
Airframe Hours 9944
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Pacific Rim Aviation, LLC
Aircraft Owner Street Address 6427 SW Airport Rd.
Aircraft Owner City Corvallis
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97333
Operator is an individual? No
Operator Name Avia Aviation Services, Inc.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 5671 SW Plumley St.
Operator City Corvallis
Operator State OR
Operator Country USA
Operator Zip code 97333
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 Yes
Departure Airport Code KCVO
Departure City Corvallis
Departure State OR
Departure Country USA
Departure Time 1545
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code KCVO
Destination City Corvallis
Destination State OR
Destination Country USA
Specific Phase of Flight Maneuvering - turn to landing area (emergency)
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jun 21 2005 4:40PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --