Fatal NTSB investigations: Lycoming IO-360-A1B6D
55 cases on aircraft whose registry engine model is Lycoming IO-360-A1B6D. 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
| 1973 | 1 |
|---|---|
| 1975 | 2 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 6 |
| 1987 | 2 |
| 1988 | 3 |
| 1989 | 2 |
| 1991 | 1 |
| 1993 | 3 |
| 1994 | 1 |
| 1995 | 4 |
| 1997 | 1 |
| 2000 | 3 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 3 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 1 |
| 2011 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
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.\"highestInjuryLevel\" = 'Fatal'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41593'))
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."highestInjuryLevel" = 'Fatal'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41593'))
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 ERA26FA241Accident · 2 fatalClass 3 · FieldPreliminary reportCessna 177RG · Morrison, TNOn June 17, 2026, about 1215 central daylight time, a Cessna 177RG, N7637V, was substantially damaged when it was involved in an accident near Morrison, Tennessee. The pilot and pilot-rated passenger were fatally injured. The airplane was operated as a Title…NTSB WPR25FA146Accident · 1 fatalClass 3 · FieldFinal reportCessna 177RG · Grass Valley, CAAn improperly tightened B-nut fitting at the fuel flow divider, which resulted in a fuel leak and loss of engine power due to fuel starvation, and the inadequate maintenance inspection, which failed to detect and correct the discrepancy.NTSB ERA24FA001Accident · 2 fatalClass 3 · FieldFinal reportCessna 177RG · Lake Placid, NYA partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot’s inadequate preflight weight and balance planning and his aggressive low altitude maneuvering, which resulted in an aerodynamic stall and loss of control.NTSB WPR21FA340Accident · 1 fatalClass 3 · FieldFinal reportCessna 177RG · Lake Havasu City, AZA partial loss of engine power during the airplane's initial climb due to wear of internal engine components, which prevented the engine from developing full-rated power and resulted in a loss of altitude.NTSB CEN21FA125Accident · 2 fatalClass 3 · FieldFinal reportCessna 177RG · Galt, MOThe pilot’s decision to takeoff into instrument meteorological conditions consisting of low ceilings and icing and his failure to remain clear of terrain while attempting to remain below the clouds, which resulted in impact with terrain.NTSB CEN20LA227Accident · 1 fatalClass 2 · LimitedFinal reportVans RV8 · Mandan, NDThe pilot's failure to remove the seat belt used as a flight control lock from the aft cockpit control stick before takeoff, which resulted in a loss of control during takeoff and collision with terrain.NTSB ERA20FA124Accident · 1 fatalClass 3 · FieldFinal reportCessna 177RG · Sterling, MAA total loss of engine power during takeoff due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate preflight inspection.NTSB WPR18FA279Accident · 1 fatalClass 2 · FieldFinal reportCessna 177RG · La Verne, CAThe pilot's failure to maintain adequate airspeed and the exceedance of the airplane's critical angle of attack during a turn, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was an undetermined engine…NTSB ERA12FA084Accident · 3 fatalField investigationFinal reportCessna 177RG · Tallapoosa, GAThe failure of the No. 2 rod end cap bolt, which resulted in a total loss of engine power.NTSB ERA09FA343Accident · 1 fatalField investigationFinal reportCessna 177 RG · Gilford, NHA loss of engine power due to oil exhaustion from the fracture of the nipple for the engine oil cooler return line. Contributing to the accident was the mechanic's signoff and release of the airplane without performing the required engine run-up following an…NTSB CEN09LA054Accident · 1 fatalLimited investigationFinal reportCessna 177RG · Mena, ARThe pilot's failure to maintain clearance from rising terrain. Contributing to the accident was the pilot's continued flight into deteriorating weather conditions.NTSB ANC07FA054Accident · 2 fatalField investigationFinal reportCessna 177RG · Wasilla, AKThe flight instructor's failure to adequately supervise the private pilot (dual student), and his delayed go-around during approach to land. Contributing to the accident was the dual student's misjudged distance/altitude.NTSB LAX07LA122Accident · 1 fatalLimited investigationFinal reportScottish Bulldog 120 · So Lake Tahoe, CAThe pilot's failure to maintain clearance from objects and the mountainous terrain.NTSB LAX06LA058Accident · 1 fatalLimited investigationFinal reportCessna 177RG · Dixon, CAthe pilot's intentional flight at low altitude and failure to maintain obstacle clearance with a high tension static line. The glare from the setting sun was a factor.NTSB SEA05FA169Accident · 3 fatalField investigationFinal reportCessna 177RG · Cascade, IDThe pilot's failure to maintain clearance from a stand of conifer trees during low altitude maneuvering in mountainous terrain. Factors include the mountainous/hilly terrain, gusty winds, a high density altitude, and maneuvering at a low altitude.NTSB NYC05LA070Accident · 1 fatalLimited investigationFinal reportCessna 177RG · Warren, PAThe pilot's failure to follow the balked landing checklist while attempting to abort a landing. Factors in the accident were his failure to maintain directional control during the landing, and a gust of wind.NTSB MIA04FA076Accident · 2 fatalField investigationFinal reportCessna 177RG · Tampa, FLImproper maintenance by other maintenance personnel, and the reinstallation of an unserviced magneto during an engine overhaul, which resulted in the magneto malfunctioning, a loss of engine power, and the airplane being ditched into the water.NTSB LAX04FA042Accident · 1 fatalField investigationFinal reportCessna 177RG · Blk Canyon City, AZa loss of engine power due to the failure of the single-drive dual magneto that resulted from inadequate lubrication of the breaker cam. Also causal was the improper maintenance by other maintenance personnel during a recent inspection, which should have…NTSB LAX03FA161Accident · 2 fatalField investigationFinal reportCessna 177RG · Ely, NVthe airplane collided with terrain for undetermined reasons.NTSB CHI00FA123Accident · 1 fatalField investigationFinal reportCessna 177RG · Watertown, SDthe pilot failed to maintain aircraft control due to spatial disorientation. Factors relating to the accident were the dark night, clouds, and rain.NTSB MIA00FA126Accident · 1 fatalField investigationFinal reportCessna 177RG · Chipley, FLThe failure of the pilot to maintain runway alignment during the initial climb from the grass airstrip. Also, the excessive pull-up by the pilot and inadvertent stall. Findings in the investigation were 1) in-flight collision with the tops of trees and 2) the…NTSB MIA00FA117Accident · 1 fatalField investigationFinal reportCessna 177RG · Columbia, SCThe PIC's inadequate planning and preparation resulting in refueling not being performed and the subsequent fuel exhaustion and forced landing into trees. A factor in the accident was the erratic operation of the right fuel tank quantity indicating system.NTSB MIA97FA249Accident · 2 fatalField investigationFinal reportCessna 177RG · Sebring, FLcontinued flight by the pilot into adverse weather conditions, and his failure to maintain aircraft control, which resulted in an uncontrolled descent until impact in a lake. The adverse weather condition (thunderstorm) was a related factor.NTSB SEA95LA185Accident · 1 fatalLimited investigationFinal reportCessna 177RG · Thompson, UTthe pilot's continued flight into instrument meteorological conditions, and his failure to maintain altitude and clearance from the mountainous terrain. Factors contributing to the accident were the fog, low ceilings, and downdraft.NTSB SEA95FA103Accident · 2 fatalField investigationFinal reportCessna 177RG · Kent, WAThe pilot's misjudgment of distance and altitude during the approach. Factors in the accident were the dusk light condition and the shadows.NTSB FTW95FA150Accident · 1 fatalField investigationFinal reportCessna 177RG · Dalhart, TXThe pilot's VFR flight into IMC conditions and the ensuing spatial disorientation. Factors were the pilot's self-induced pressure to reach his destination, his failure to obtain a weather briefing for the flight, and the weather conditions.NTSB FTW95FA111Accident · 1 fatalField investigationFinal reportCessna 177RG · Larkspur, COThe pilot's decision to continue VFR flight into instrument meteorological conditions after being advised that VFR flight was not recommended. The weather and dark night were factors in the accident.NTSB LAX94FA318Accident · 4 fatalField investigationFinal reportCessna 177RG · So. Lake Tahoe, CAThe pilot's decision to take off from a high density altitude airport at an over allowable gross weight condition. Factors in the accident were the high density altitude, down drafts, and the pilot's lack of familiarity operting from high density altitude…NTSB FTW94FA057Accident · 3 fatalField investigationFinal reportCessna 177RG · Van Horn, TXThe pilot exceeded the design stress limits of the aircraft after a loss of control which resulted from VFR flight into instrument meteorological conditions. Factors were the weather, the pilot's lack of instrument training and experience, and his failure to…NTSB LAX94FA004Accident · 4 fatalField investigationFinal reportCessna 177RG · Petaluma, CAVFR flight by the pilot(s) into instrument meteorological conditions (IMC), and failure to maintain a proper altitude and/or clearance from terrain, while approaching the destination airport. Factors related to the accident were: the low ceiling and terrain.NTSB BFO93WA141Accident · 4 fatalForeign investigationCessna 177RG · Marseille, FranceNTSB SEA91FA183Accident · 4 fatalField investigationFinal reportCessna 177RG · Salmon, IDImproper inflight planning and decision by the pilot, and his failure to maintain sufficient altitude and clearance from mountainous/hilly terrain.NTSB SEA89FA180Accident · 2 fatalField investigationFinal reportCessna 177RG · Nyssa, ORFailure of the pilot to attain sufficient altitude before flying over mountainous/hilly terrain. Factors related to the accident were: dark night, rising/mountainous terrain, and probable impairment from a prescription drug.NTSB MIA89FA219Accident · 2 fatalField investigationFinal reportCessna 177RG · Janice, MSThe in flight loss of control by the non instrument rated pilot after encountering instrument meteorological conditions resulting in the airplane spiraling into a wooded area.NTSB LAX88FA314Accident · 1 fatalField investigationFinal reportCessna 177RG · San Luis Obispo, CAPilots erroneous interpretation of his missed approach clearance, and, his performance of the published missed approach procedure for the santa maria ILS instead of the San Luis Obispo localizer.NTSB LAX88FA272Accident · 3 fatalField investigationFinal reportCessna 177RG · Cedar Grove, CAPilots decision to attempt a flight through a mountainous area at an altitude insufficient to ensure terrain clearance.NTSB BFO88FA024Accident · 2 fatalField investigationFinal reportCessna 177RG · Ellamore, WVAprx 3 hrs and 26 minutes after takeoff from republic airport, the plt reported having engine problems. Unable to make it to an airport, the plt radioed that he was going to attempt to land on a road. The airplane struck trees and crashed in a wooded area…NTSB DEN88FA128Accident · 2 fatalField investigationFinal reportCessna 177RG · Afton, WYThe acft was not certified nor equipped for flt into icing conditions. The plt elected to depart even though he was advised by the crew of a C-182 that had just lndd to stay below the clouds because of icing. After tkof the acft cleared an 11000 ft mtn range…NTSB LAX87FA093Accident · 4 fatalField investigationFinal reportCessna 177RG · S Lake Tahoe, CAAfter departing at night from south lake Tahoe, CA, the plt contacted ARTCC & requested radar flt following. A short time later, he declared an emergency & said he was reversing course with a loss of eng power. Radar & radio contact with the acft were lost as…NTSB SEA87FA031Accident · 1 fatalField investigationFinal reportCessna 177RG · Republic, WAA witness observed the acft taxi out ot the rwy in light snow showers and taxi to the north end of the rwy. During the takeoff the area was covered with a heavy snow shower, with winds from the north gusting T0 20-25 mph. The acft was observed to depart to…NTSB LAX87FA014Accident · 2 fatalField investigationFinal reportCessna 177RG · Happy Jack, AZThe non-instrument rated private plt was informed that MVFR weather conditions existed along his planned route of flight. The plt took off & headed into the deteriorating wx. While cruising beneath clouds the acft collided with rapidly rising terrain. The plt…NTSB ANC86FA130Accident · 3 fatalField investigationFinal reportCessna 177RG · Hinchinbrook Is, AKAt 1323 adt, the plt rprtd near Hinchinbrook island & requested clearance for an ndb-a apch to the cordova mile 13 arpt. About 3 min later, cordova fss provided clearance for the apch 'from over Hinchinbrook.' Radar data showed that the acft flew to the…NTSB FTW86FA063Accident · 1 fatalField investigationFinal reportCessna 177RG · Dallas, TXThe pilot was advised by the FAA weather briefer, prior to flight, against making this flight due to present and forecast weather conditions. After arriving in the general area of his destination the plt observed the weather conditions and commented on thier…NTSB CHI86FA068Accident · 1 fatalField investigationFinal reportCessna 177RG · Valley View, ILThe plt was conducting a low pass, 40 ft AGL, on a river and struck a power line crossing his flt path. The strike caused loss of control and the acft impacted on the frozen surface of the river.NTSB ATL86FA049Accident · 1 fatalField investigationFinal reportCessna 177RG · Hazard, KYThe plt called the arpt on UNICOM and asked how to find the arpt, stated that he needed fuel and asked if fuel was available. He was given directions and asked if he had landed there before. He replied no, and inquired about the traffic pattern. It was…NTSB LAX86FA048Accident · 3 fatalField investigationFinal reportCessna 177RG · San Bernardino, CAThe instrument rated plt & his family flew from TX to CA. It was night time upon arrival and the plt did not communicate with any FAA facility. Earlier in the flt, during a refueling stop, the plt had telephoned a friend and his parents to arrange to be…NTSB LAX83FA091Accident · 3 fatalField investigationFinal reportCessna 177RG · Las Vegas, NVThe acft collided with a mountain during a night cross-country. The weather was VMC at takeoff but became IMC later nearthe mountains. A VFR flight plan was filed but never opened. The pilot continued flight into an area of known IMC conditions. He had…NTSB MKC82FA057Accident · 2 fatalField investigationFinal reportCessna 177RG · Ste. Genevieve, MODuring the day of the accident, the pilot received 7 weather briefings which described marginal VFR conditions for his route of flight. At about 1730 CST, he departed Kansas city on a VFR flight plan to farmington, MO. During the flight, he encountered…NTSB LAX81FA036Accident · 2 fatalClosedCessna 177RG · Flagstaff, AZNTSB NYC80FA038Accident · 3 fatalClosedCessna 177RG · Peterborough, NH