# NTSB SEA03FA100: Aviat A-1, N104CA, Atlanta, ID, June 12, 2003 - Type: NTSB accident investigation - Classification: Accident · Fatal · Field investigation · Final report - Date: June 12, 2003, 13:09 local (19:09 UTC) - Place: Atlanta, ID - Coordinates: 43.800277, -115.133331 - Nearby events: https://openairdocs.org/map.md?lat=43.8003&lon=-115.1333&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 2 fatal - Status: Completed, report December 30, 2003 - Report: Approved by Office Director - Parties: Lycoming Engines, FAA-FSDO - NTSB case key (mKey): 57226 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA03FA100 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/57226/pdf - Page: https://openairdocs.org/ntsb/SEA03FA100 ## Probable cause Clearance from trees was not maintained during the initial climb. A proper touchdown point was not attained, the pilot's lack of familiarity with the geographic area and trees were factors. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, takeoff - initial climb - object - tree(s) (contributing factor) - clearance - not maintained, pilot in command (cause) - lack of familiarity with geographic area, pilot in command (contributing factor) - proper touchdown point - not attained, pilot in command (contributing factor) - aborted landing, pilot in command ## Analysis A witness reported that the aircraft circled the area before approaching runway 34. The witness stated that the aircraft was coming in too fast and too high when it pulled up. The aircraft circled around and started the approach again. The aircraft touched down about mid-field on the 2,650 foot gravel airstrip when the witness heard a backfire and the aircraft was observed to veer to the right of the runway. The aircraft lifted off subsequently colliding with an approximate 80 foot tall pine tree located about 400 feet from the end of the runway with its right wing. The aircraft then descended to the ground coming to rest upright about 76 feet from the tree. Airport facilities directories and guide books describing the cautions for operating into this airstrip were found in the wreckage. The advisories recommend to land runway 34 and depart runway 16. Other cautions state to "use at own risk" and "Can be hazardous. Not recommended except experienced pilots with local knowledge." Mountainous terrain surrounded the airstrip and tall trees were located in close proximity to the airstrip. This was the first time the pilot had been into this airstrip. Post-crash inspection of the aircraft and engine did not find evidence of a mechanical failure or malfunction. ## Factual narrative HISTORY OF FLIGHT On June 12, 2003, approximately 1309 mountain daylight time, an Aviat (Husky) A-1, N104CA, registered to Stikair Inc., operated by the pilot as a 14 CFR Part 91 personal flight, collided with a tree during a go-around attempt at the Atlanta Airport, Atlanta, Idaho. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft was substantially damaged and the private pilot and his passenger were fatally injured. The flight last departed from Camas County Airstrip (U86), Fairfield, Idaho, about 45 minutes prior to the accident. A witness to the accident reported to the Elmore County Sheriff's Department that he was watching the aircraft from his residence in Atlanta. The witness reported that he observed the aircraft circle the area before approaching runway 34. The witness stated that the aircraft was "coming in too fast and too high" when it pulled up. The aircraft circled around and started the approach again. During this approach, the aircraft touched down about mid-field. The witness heard a backfire and the aircraft veered to the right of the runway. The aircraft lifted off subsequently colliding with trees at the end of the runway. The witness observed the plane come down with the tail of the aircraft straight up. A local resident, who was the first person at the accident site, reported that the weather at the time was clear skies. The wind was calm and the temperature was about 75 to 80 degrees F. PERSONNEL INFORMATION At the time of the accident, the pilot held a private pilot certificate for single-engine land aircraft. The pilot's flight logbook indicated a total flight time of approximately 520 hours in all aircraft, with approximately 426 hours as pilot-in-command. Approximately 23 hours total flight time had been accumulated in the accident aircraft with approximately 11 hours as pilot-in-command. The flight logbook indicated that the first flight in the accident aircraft was on January 14, 2003. A series of dual instruction flights were logged up to May 5, 2003, when the entry indicated that the pilot was signed off for solo operations. The pilot held a class III FAA medical certificate dated April 28, 2003, with a restriction that corrective lenses must be worn. The pilot's body weight at the time was listed as 204 pounds. AIRCRAFT INFORMATION The 1996 Aviat Aircraft Inc., A-1, "Husky", serial number 1338, had been maintained in accordance with an annual/100 hour inspection program. The maintenance logbooks indicated that the last annual/100 hour inspection was accomplished on July 8, 2002, at a total airframe time of 238.7 hours. The tachometer recorded at the time of the accident indicated a total time of 283.8 hours. The Lycoming O-360-A1P engine serial number L-35261-36A was equipped with a Hartzell propeller. AERODROME INFORMATION The Idaho Airport Facilities Directory indicated that the Atlanta Airstrip (55H) is located at Latitude 43 degrees 48.1 minutes North, Longitude 115 degrees 08.8 minutes West. The airstrip's elevation is 5,500 feet mean sea level. The airstrip is 2,650 feet in length and 60 feet wide with a turf surface. Runway alignment is 34/16. The remarks section indicated "High timbered ridges limit maneuvering area." "Recommend land rwy 34, depart rwy 16. Approach up Boise River - making right circling pattern over valley to check traffic at Greene Airport. Depart with a right turnout down Boise River." A "Fly Idaho! A guide to Adventure in the Idaho Backcountry" was found in the wreckage. This guide book provided an aerial colored photograph of the airstrip and surrounding mountainous terrain. The guidebook also provided a lower aerial view of the airstrip for final approach to runway 34. This view clearly depicts the rising terrain directly off the departure end of runway 34 and the close proximity of trees near the airstrip. This guidebook also indicated the airport cautions as indicated in the Idaho Airport Facilities Directory. The Airguide Publications Flight Guide, Volume 1, was also found in the wreckage. This guide for the Atlanta Airstrip identified a caution, "Own risk. Can be hzrds (hazardous). Not rcmndd xcpt exp (recommended except experienced) pilots with local knowledge." WRECKAGE AND IMPACT INFORMATION On site documentation of the wreckage was conducted on June 13, 2003, by investigators from the National Transportation Safety Board, Federal Aviation Administration and Lycoming Engines. The wreckage was located with the aid of a hand help global positioning system (GPS) on flat rough terrain at 43 degrees 48.920 minutes North latitude, 115 degrees 08.005 minutes West longitude. The elevation rose slightly from the end of the airstrip (5,500 foot elevation) to the accident site. A magnetic bearing of 40 degrees was measured from the end of the airstrip to the wreckage. The distance from the end of the airstrip to an approximate 80 foot high pine tree was approximately 400 feet. At the base of this tree, Plexiglas, red paint chips, a green lens cap from the right wing tip, and freshly broken tree limbs measuring in diameter of approximately four inches were noted. The uppermost section of this tree indicated fresh breaks. Approximately 76 feet was measured from the base of the 80-foot tree to the wreckage on a magnetic bearing of 30 degrees. The aircraft was oriented on a magnetic heading of 060 degrees. The right main landing gear was collapsed outward. The left main landing gear was collapsed under the belly. Both the pilot's and passenger seat legs were crushed downward. The left wing remained attached to the wing root. The wing was collapsed downward and the outboard surface was laying on the ground. No leading edge damage was noted. The wing lift struts were bent, but remained attached at the attach points to the wing and side of the fuselage. Both the flap and aileron remained attached to their respective hinges. The right wing was reported to have been partially attached at the wing root, but was separated and moved to provide access to the occupants. Control cables were cut and fuel lines were plugged to stop fuel leakage. The wing lift struts remained attached at the wing attach points. The struts were bent and had been separated from the structure at the fuselage attach points. Two approximate six inch in diameter circular indents were noted along the leading edge near the wing tip. The first indent was just inboard of the wingtip cap, the other indent was approximately two feet inboard of the first indent. The two indentations crushed the structure aft approximately 18 inches. Both the flap and aileron remained attached to their respective hinges. The fuselage remained intact with the engine secured at the firewall. The empennage to include the horizontal stabilizer with rudder attached and horizontal stabilizers with elevators attached were undamaged. Flight control continuity was established to all flight control surfaces. The propeller assembly remained attached to the crankshaft flange. Blade "A" displayed "S" bending deformation. Chordwise scratches were noted on the blade back. Severe leading and trailing edge gouges were noted. Blade "B" was partially buried in the soil. The blade was uncovered and found that the outboard approximate six inches of the tip was torn off. The tip section was found underneath the engine cowling. Chordwise scratches and gouges were also noted to the blade. Engine control continuity was established to the throttle, mixture control, propeller and carburetor heat. MEDICAL AND PATHOLOGICAL INFORMATION A local resident who was the first person to arrive at the accident site reported that both occupants were still alive. The passenger succumbed to his injuries just before the Life Flight helicopter arrived. The pilot succumbed to his injuries early t ## Aircraft - Registration: [N104CA](https://openairdocs.org/aircraft/N104CA), registered now, S/N 1338, built 1996 (OpenAirDocs) - Reported make and model: Aviat Aircraft Inc. A-1 - Registry model: [Aviat A-1](https://openairdocs.org/model/aviat-a-1) (registry code 2210400) (OpenAirDocs) - Registry engine: [Lycoming 0-360-A1D](https://openairdocs.org/engine/lycoming-0-360-a1d) (registry code 41504, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1338 - Airframe hours: 283.8 - Engines: Lycoming O-360-A1P 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Stikair Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 8, 2002, 45.1 hours before - Departed: U86, Fairfield, ID - Destination: 55H, Atlanta, ID - Airport: 55H, Atlanta, runway 34, 2,650 × 60 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: fatal; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review June 14, 2002; seat: front; flight hours: 520 total, 23 in this make and model, 426 as pilot in command, 24 in the last 90 days, 11 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 81 °F ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20030612012529A](https://openairdocs.org/incident/20030612012529A), Jun 12, 2003: Chris A1, Atlanta, ID, Substantial damage, 2 fatal. (-23) Aircraft collided with a tree during a go-around attempt. Witnesses reported that the aircraft circled the airport twice above the terrain, then approach… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.