Hermiston Municipal Airport
Aircraft Accident/Incident Report

Hermiston, Oregon 97838
Thursday, October 14, 2004 9:00 PDT

NTSB Narrative Summary Released at Completion of Accident

After performing a number of low-level aerobatic maneuvers to the east of the airport, the pilot made a low-level pass over the runway from east to west. He then executed a rapid pull-up, and climbed on a near-vertical line. As the aircraft climbed, its airspeed decreased to the point that when the pilot executed a wingover maneuver at the top of the climb, the aircraft entered a spin. It then spun two or three times to the left, before its rotation rate began to decrease. As the rotation rate decreased, the pilot attempted to pull out of the dive, but the aircraft impacted the terrain and immediately burst into flames. There was no indication of any problems with the flight controls, nor any evidence that there had been a malfunction associated with the engine.

NTSB Probable Cause Narrative

The pilot's failure to maintain an airspeed above stall speed while executing a wingover maneuver at the top of a vertical climb, leading to an inadvertent spin, and the pilot's inadequate remedial action in attempting to recover from the spin. Factors include performing aerobatic maneuvers close to the terrain.

Event Information

Type of Event Accident
Event Date 10/14/2004
Event Day of the Week Thursday
Time of Event 900
Event Time Zone Pacific Daylight Time
Event City Hermiston
Event State OREGON
Event Country --
Zipcode of the event site 97838
Event Date Year 2004
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 454923N
Event Location Longitude 1191639W
Event Location Airport Hermiston Municipal Airport
Event Location Nearest Airport ID KHRI
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.5
Degrees magnetic from airport 220
Airport Elevation 644
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 853 Pacific Standard Time
Direction of event from weather observation facility (degrees) 40
Weather Observation Facility ID KHRI
Elevation of weather observation facility 644
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation PST
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) 11
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.21
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 18374
NTSB Notification Source FAA Operations Center
NTSB Notification Date Oct 14 2004 12:00AM
NTSB Notification Time 915
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 13 2005 12:54PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Portland FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N706C
NTSB Number SEA05LA006
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Caldwell
Aircraft Model Glasair II
Aircraft Series Identifier --
Aircraft Serial Number 307
Certified Max Gross Weight 1900
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Steven M. Caldwell
Aircraft Owner Street Address --
Aircraft Owner City Hermiston
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97838
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code HRI
Departure City Hermiston
Departure State OR
Departure Country USA
Departure Time 845
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code HRI
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 Jun 21 2005 3:47PM
User who most recently changed record STAM
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 --