# NTSB GAA17CA497: Beech A36, N136BJ, Loman, ID, August 19, 2017 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 19, 2017, 16:15 local (22:15 UTC) - Place: Loman, ID - Coordinates: 44.142223, -115.314163 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.1422&lon=-115.3142&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report March 14, 2018 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 95849 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA17CA497 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95849/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=95849 - Page: https://openairdocs.org/ntsb/GAA17CA497 ## Probable cause The pilot’s inadequate compensation for a tailwind, which resulted in a runway overrun. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Beech A36, 43 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=1151604), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Beech A36, 5 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=1151604), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md) - [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Response/compensation (probable cause); cases with it: [Beech A36, 5 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=1151604), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md) - [Object/animal/substance: tree(s)](https://openairdocs.org/ntsb-findings/03022020): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Beech A36, 6 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md?model=1151604), [All aircraft, 933 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Approach: Other weather encounter](https://openairdocs.org/ntsb-events/400); cases with it: [Beech A36, 3 cases](https://openairdocs.org/ntsb-events/400/sequence.md?model=1151604), [All aircraft, 1,127 cases](https://openairdocs.org/ntsb-events/400/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Beech A36, 20 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=1151604), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Beech A36, 78 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=1151604), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis According to the pilot, as he approached the airport, he requested a wind and weather PIREP. An unknown person replied on the CTAF to expect winds out of the west. With the intent of landing on runway 2, the pilot overflew the airfield and observed a light crosswind from the west. He landed the high-performance airplane on a 2,580-ft-long turf surface. The pilot recalled a shift in wind direction during landing. The airspeed as he crossed the runway threshold was about 90 knots, and the airspeed "increased dramatically" during the landing flare and touchdown. The pilot applied the brakes; however, the airplane overran the departure end of the runway and collided with a tree. The airplane sustained substantial damage to the engine mounts and the fuselage. According to the pilot, witnesses to the accident recalled that the airplane landed in variable wind conditions and touched down with a 20- to 30-knot tailwind. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative According to the pilot, as he approached the airport, he requested a wind and weather PIREP. An unknown person replied on the CTAF, to expect winds out of the west. With the intent of landing on runway 2, the pilot overflew the airfield and observed a light crosswind from the west. He landed the high-performance airplane on 2,580 ft. turf surface. The pilot recalled a shift in wind direction during landing. The airspeed as he crossed the runway threshold was about 90 knots, and the airspeed, "increased dramatically" during the landing flare and touch down. The pilot applied the brakes, however, the airplane overran the departure end of the runway and collided with a tree. The airplane sustained substantial damage to the engine mounts and the fuselage. According to the pilot, witnesses to the accident recalled that the airplane landed in variable wind conditions and touched down with a 20-30 knot tailwind. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N136BJ](https://openairdocs.org/deregistered/N136BJ-2022-03-24), registration cancelled 2022-03-24, S/N E-1077, built 1977 (OpenAirDocs) - Reported make and model: BEECH A36 (UNDESIGNAT) - Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (registry code 1151604) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: E-1077 - Year built: 1977 - Airframe hours: 4090.8 - Engines: Continental IO-520-BB 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Comtemporary Communication Systems Inc - Registered owner: Comtemporary Communication Systems Inc - Airworthiness certificate: Standard, Utility - Last inspection: Annual, February 23, 2017 - Departed: 043, Yerington, NV - Destination: 0U1, Loman, ID - Airport: 0U1, Warm Springs Creek, runway 02, 2,850 × 135 ft, grass/turf - Equipment: Electronic primary flight display, Stall warning system, ADS-B, Auto-pilot, Electronic flight bag or handheld device, Electronic multifunction display ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 34; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review July 13, 2016; seat: left; restraint: 3-point; flight hours: 213.6 total, 48.7 in this make and model, 107.1 as pilot in command, 28.2 in the last 90 days, 8.8 in the last 30 days, 5.6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 5 knots, gusting 14 - Temperature: 79 °F, dew point 27 °F - Altimeter: 30.15 inHg - Observed at: KSNT, 17 nm away ## Docket (2 files) The files NTSB released with the investigation on January 30, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=95849. 2.5 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40459648&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Photos (item 2, .PDF, 1 photo, 255 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40459649&FileExtension=.PDF&FileName=Photos-Master.PDF 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.