NTSB investigations: Lycoming 0-235 series, AK
360 cases on aircraft whose registry engine model is Lycoming 0-235 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1964 | 11 |
|---|---|
| 1965 | 4 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 7 |
| 1969 | 6 |
| 1970 | 9 |
| 1971 | 11 |
| 1972 | 9 |
| 1973 | 11 |
| 1974 | 7 |
| 1975 | 5 |
| 1976 | 9 |
| 1977 | 10 |
| 1978 | 11 |
| 1979 | 5 |
| 1980 | 7 |
| 1981 | 7 |
| 1982 | 7 |
| 1983 | 9 |
| 1984 | 15 |
| 1985 | 5 |
| 1986 | 9 |
| 1987 | 11 |
| 1988 | 8 |
| 1989 | 9 |
| 1990 | 7 |
| 1991 | 5 |
| 1992 | 8 |
| 1993 | 4 |
| 1994 | 10 |
| 1995 | 6 |
| 1996 | 3 |
| 1997 | 6 |
| 1998 | 4 |
| 1999 | 5 |
| 2000 | 5 |
| 2001 | 7 |
| 2002 | 5 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 3 |
| 2007 | 4 |
| 2008 | 5 |
| 2009 | 3 |
| 2010 | 3 |
| 2011 | 7 |
| 2012 | 5 |
| 2013 | 4 |
| 2014 | 3 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 3 |
| 2025 | 3 |
| 2026 | 2 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE c.\"eventStateOrRegion\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41505'))
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41505'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB ANC26LA059Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-12 · North Pole, AKNTSB ANC26LA042Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-14 · Nenana, AKNTSB ANC25LA109Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-12 · Kotlik, AKThe pilot’s failure to maintain airplane control during a go-around in variable wind conditions.NTSB ANC25LA089Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · Egegik, AKThe pilot’s excessive use of brakes during landing roll, which resulted in a nose-over.NTSB ANC25LA062Accident · No injuriesClass 4 · LimitedFinal reportChampion 7ECA · Wasilla, AKThe pilot’s excessive use of brakes during landing roll, which resulted in a nose-over.NTSB ANC23LA041Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · McGrath, AKThe pilot’s delayed decision to abort the takeoff, which resulted in a forced landing and impact with terrain.NTSB ANC23LA020Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-16 · Soldotna, AKA total loss of engine power for undetermined reasons.NTSB ANC23LA015Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · Anchorage, AKThe pilot's selection of an unsuitable landing site, resulting in the main landing gear wheels breaking through the snow, and a subsequent nose over.NTSB ANC23FA004Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-18 · Chickaloon, AKThe pilot's decision to fly at low altitude, which resulted in a collision with a cable.NTSB ANC22LA079Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · Tok, AKThe pilot’s improper application of the brakes, which resulted in a nose-over and substantial damage to the rudder and wings.NTSB ANC22FA066Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-12 · Arctic Village, AKThe pilot’s decision to depart in turbulent and gusting wind conditions, which resulted in a loss of control and impact with terrain.NTSB ANC22LA060Accident · No injuriesClass 4 · LimitedFinal reportTaylorcraft F21 · Kenai, AKThe pilot’s failure to maintain adequate distance from a tree while landing.NTSB ANC22LA026Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 152 · Anchorage, AKThe flight instructor’s failure to adequately monitor the student pilot which resulted in an impact with terrain and a nose-over.NTSB ANC21LA096Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-14 · Chickaloon, AKA total loss of engine power during takeoff for reasons that could not be determined based on the available information.NTSB ANC21LA077Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · Nikolai, AKThe pilot’s loss of control on go-around in gusting crosswind conditions. Contributing to accident was the pilot’s decision to attempt to land at a short off-airport landing site with a malfunctioning airspeed indicator.NTSB ANC21LA071Accident · Serious injuriesClass 4 · LimitedFinal reportPiper PA-14 · Tyonek, AKThe pilot’s failure to maintain directional control and adequate airspeed during takeoff which resulted in a collision with a river. Contributing to the accident was the pilot’s improper decision to load the airplane above its maximum allowable gross weight.NTSB ANC21LA040Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-105 Special · Gakona, AKThe pilot’s decision to initiate a flight with a failed mixture control cable which resulted in a total loss of engine power.NTSB ANC20LA059Accident · No injuriesClass 3 · LimitedFinal reportPiper PA 12 · Anchorage, AKThe fatigue fracture of the American Iron and Steel Institute (AISI) 1025 carbon steel rudder post, which resulted in structural failure of the rudder. Contributing to the fatigue failure was the post’s susceptibility to fatigue cracking under normal service…NTSB ANC20CA047Accident · No injuriesClass 4 · Data collectionFinal reportPiper PA 18 · McGrath, AKThe pilot's failure to maintain directional control during takeoff in gusting wind conditions, which resulted in a collision with trees and impacted with the ground.NTSB GAA19CA551Accident · No injuriesData collectionFinal reportPiper PA 12 · Healy, AKThe pilot's exceedance of the airplane's critical angle of attack while taking off from water in shifting wind conditions.NTSB GAA19CA497Accident · No injuriesData collectionFinal reportPiper PA 12 · McCarthy, AKThe pilot's overapplication of brakes during landing, which resulted in a nose-over.NTSB ANC18FA071Accident · 2 fatalField investigationFinal reportPiper PA-12-150 · Healy, AKAn impact with terrain for reasons that could not be determined based on the available information.NTSB GAA18CA535Accident · No injuriesData collectionFinal reportPiper PA 12 · Talkeetna, AKThe pilot’s failure to maintain pitch control on uneven terrain during the landing roll, which resulted in a nose-over.NTSB GAA18CA357Accident · No injuriesData collectionFinal reportBellanca 7ECA · Fairbanks, AKThe airplane’s collision with a bird while maneuvering.NTSB GAA18CA320Accident · No injuriesData collectionFinal reportPiper PA 12 · Nulato, AKThe pilot’s improper landing flare, which resulted in a hard landing on upsloping terrain, and his subsequent failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during an attempted go-around, which resulted in…NTSB GAA18CA090Accident · No injuriesData collectionFinal reportPiper PA22 · Yentna, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in a loss of directional control and subsequent nose-over.NTSB GAA17CA387Accident · No injuriesData collectionFinal reportPiper PA 12 · Chickaloon, AKThe pilot’s improper landing flare on a turf runway, which necessitated a go-around during which he failed to establish a climb.NTSB ANC17LA033Accident · No injuriesClass 2 · LimitedFinal reportPiper PA 12 · Skwentna, AKThe pilot's failure to properly secure the external load, which resulted in the load shifting during flight, interference with the water rudder cable, and a subsequent loss of controlNTSB GAA17CA188Accident · No injuriesData collectionFinal reportPiper PA 12 · Anchorage, AKThe pilot’s failure to maintain directional control during the taxi on skis on hard-packed snow in gusting wind conditions.NTSB GAA17CA051Accident · No injuriesData collectionFinal reportCessna 152 · Chickaloon, AKThe flight instructor's delay in aborting the takeoff from a turf runway, which resulted in a runway overrun.NTSB ANC16FA057Accident · 1 fatalField investigationFinal reportChampion 7ECA · Chugiak, AKThe pilot's failure to maintain proper airspeed and his exceedance of the airplane's critical angle of attack during a steep low-altitude turn following a loss of engine power, which resulted in an aerodynamic stall and subsequent loss of control at too low…NTSB GAA16CA008Accident · No injuriesData collectionFinal reportPiper PA · Glennallen, AKThe pilot's failure to maintain clearance from trees during the approach to land, resulting in a collision with trees.NTSB GAA15LA284Accident · Serious injuriesLimited investigationFinal reportChampion 7ECA · Talkeetna, AKThe pilot's failure to properly calculate the fuel consumption rate and to properly monitor the fuel status in flight and his decision to continue the flight despite signs of an engine problem, which resulted in a total loss of engine power due to fuel…NTSB ANC14CA088Accident · No injuriesData collectionFinal reportPiper PA 12 · Holy Cross, AKThe pilot's selection of unsuitable terrain for takeoff/landing and failure to maintain control of the aircraft.NTSB ANC14CA072Accident · No injuriesData collectionFinal reportPiper PA 12 · Talkeetna, AKThe pilot's inadequate recovery from a bounced landing, resulting in a runway excursion and collision with trees.NTSB ANC14FA050Accident · 1 fatalField investigationFinal reportPiper PA 12 · Anchorage, AKThe incorrect (reverse) rigging of the elevator control cables, and the pilot’s inadequate preflight inspection, which failed to detect the misrigging.NTSB ANC13FA090Accident · 2 fatalField investigationFinal reportChampion 7ECA · Sutton, AKThe pilot’s failure to maintain airplane control while maneuvering at low altitude, which resulted in an aerodynamic stall/spin and collision with terrain. Contributing to the accident was the pilot’s use of marijuana, which likely degraded his psychomotor…NTSB ANC13CA109Accident · No injuriesData collectionFinal reportPiper PA 16 · Glennallen, AKThe pilot's loss of control during the initial climb after takeoff, resulting in a collision with trees.NTSB ANC13LA048Accident · Minor injuriesLimited investigationFinal reportPiper PA-16 · Juneau, AKThe total loss of engine power for reasons that could not be determined due to the inability to recover the airplane.NTSB ANC13CA034Accident · No injuriesData collectionFinal reportPiper PA-16 · Big Lake, AKThe pilot's decision to land on unsuitable terrain.NTSB ANC13LA008Accident · No injuriesLimited investigationFinal reportBellanca 7ECA · Kenai, AKThe loss of engine power due to carburetor icing and the pilot's failure to apply carburetor heat when he reduced engine power.NTSB ANC12CA112Accident · No injuriesData collectionFinal reportPiper PA-12 · Fairbanks, AKThe pilot’s improper fuel management, which resulted in a loss of engine power due to fuel starvation.NTSB ANC12LA096Accident · Serious injuriesLimited investigationFinal reportTaylorcraft F21 · Willow, AKThe pilot’s failure to maintain control of the airplane after a loss of engine power during takeoff due to carburetor ice.NTSB ANC12CA072Accident · No injuriesData collectionFinal reportPiper PA-12 · Quinhagak, AKThe pilot's failure to use continuous carburetor heat while operating in conditions conducive to carburetor icing, which resulted in the development of carburetor ice and a subsequent partial loss of engine power.NTSB ANC12CA043Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Anchorage, AKThe pilot’s failure to maintain directional control while landing in a gusting crosswind.NTSB ANC11CA097Accident · No injuriesData collectionFinal reportPiper PA-12 · Anchorage, AKThe pilot's misidentification of the runway environment in dusk light conditions.NTSB ANC11CA078Accident · No injuriesData collectionFinal reportPiper PA-11 · Chenga Bay, AKThe pilot's improper decision to land on an unsuitable landing surface which resulted in a nose over.NTSB ANC11FA065Accident · 1 fatalField investigationFinal reportPiper PA-12 · Delta, AKThe pilot's decision to make a low-altitude turn back to the airport following a loss of engine power, which resulted in an aerodynamic stall and loss of control. Contributing to the severity of the pilot's injuries was the separation of the pilot's seat…NTSB ANC11CA063Accident · No injuriesData collectionFinal reportPiper PA-12 · Gulkana, AKThe pilot's inadequate recovery from a bounced landing.NTSB ANC11CA036Accident · No injuriesData collectionFinal reportPiper J5A · Palmer, AKThe pilot's inadequate compensation for wind conditions.