Final NTSB investigations: Lycoming GO-435C&D series
119 cases on aircraft whose registry engine model is Lycoming GO-435C&D 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 | 13 |
| 1966 | 8 |
| 1967 | 11 |
| 1968 | 7 |
| 1969 | 4 |
| 1970 | 4 |
| 1971 | 5 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 3 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 2 |
| 1981 | 4 |
| 1982 | 2 |
| 1983 | 2 |
| 1984 | 3 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 1 |
| 1994 | 2 |
| 1997 | 1 |
| 1999 | 2 |
| 2001 | 2 |
| 2002 | 5 |
| 2003 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2016 | 2 |
| 2024 | 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.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41521'))
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."completionStatus" = 'Completed'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41521'))
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 ERA24LA161Accident · No injuriesClass 3 · LimitedFinal reportNavion Navion B · Sanford, FLA sudden loss of all engine power during takeoff for undetermined reasons.NTSB ERA16LA333Accident · No injuriesLimited investigationFinal reportRyan Navion · Hurt, VAIncorrect installation of the oil temperature probe and an inadequate annual inspection that failed to detect leaking oil around the loose probe, which resulted in a catastrophic engine failure due to oil starvation.NTSB CEN16LA296Accident · Minor injuriesLimited investigationFinal reportRyan Navion B · Manitowoc, WIA leak in the gascolator due to degraded rubber gaskets, which allowed air to enter the fuel system and resulted in fuel starvation and a total loss of engine power during takeoff.NTSB ERA13LA121Accident · No injuriesLimited investigationFinal reportPiper PA-32-260 · Yonkers, NYA partial loss of engine power for reasons that could not be determined because examination of the engine and associated components did not reveal any mechanical malfunction or failure that would have precluded normal operation.NTSB ERA11LA359Accident · Serious injuriesLimited investigationFinal reportNavion Navion B · Red Oak, NCThe pilot's inadvertent movement of the fuel tank selector handle to the off position, resulting in a total loss of engine power due to fuel starvation.NTSB ERA10CA425Accident · No injuriesData collectionFinal reportRyan Navion B · Fort Myers, FLThe binding of the trim wheel on the instrument panel and the pilot’s improper decision to depart with a known mechanical deficiency.NTSB ERA09CA351Accident · No injuriesData collectionFinal reportDreyer Starduster · Cowlesville, NYA total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate preflight fuel inspection.NTSB LAX03LA118Accident · Minor injuriesLimited investigationFinal reportRyan Navion · Mammoth Lakes, CAthe pilot's inadequate compensation for the wind conditions and failure to maintain directional control during the landing roll. A factor was the gusty crosswind.NTSB MIA02LA130Accident · No injuriesLimited investigationFinal reportBeech B50 · Clanton, ALThe pilot's failure to maintain directional control of the airplane during an aborted landing that resulted in a ground swerve and the airplane exiting the runway and collided with a fence, incurring damage.NTSB MIA02LA116Accident · No injuriesLimited investigationFinal reportNavion Nav4 · Raleigh, NCthe pilot's inadequate preflight planning, improper fuel consumption calculations, and selection of the auxiliary fuel tank for landing, which resulted in a loss of engine power due to fuel starvation, and forced landing in trees. A factor in this accident…NTSB DEN02LA048Accident · No injuriesLimited investigationFinal reportHelio H-391B · Cheyenne, WYthe pilot's failure to maintain directional control.NTSB ATL02FA076Accident · No injuriesField investigationFinal reportFlugzeugbau EA-300L · Lakeland, FLThe Extra 300L pilot's failure to maintain a visual lookout resulting in a midair collision while landing. Contributing to the accident was the Extra 300L pilot's failure to follow written instructions contained in the NOTAM, and ATC instructions resulting in…NTSB SEA02FA036Accident · Serious injuriesField investigationFinal reportAero Commander 520 · Puyallup, WAThe pilot's failure to maintain aircraft control during takeoff. Trees were a factor.NTSB ATL01LA072Accident · No injuriesLimited investigationFinal reportRyan Navion B · Palm Beach, FLLoss of engine power for undetermined reasons.NTSB ANC01LA066Accident · No injuriesLimited investigationFinal reportHelio H-391B · Anvik, AKThe pilot's continued operation of the accident airplane with known equipment deficiencies, and an improper installation of the float assembly by maintenance personnel. A factor in the accident was the pilot's delay in aborting the takeoff.NTSB SEA99LA124Accident · No injuriesLimited investigationFinal reportNavion B · Stanley, IDAn improperly planned approach and gusting wind conditions. A tailwind was a factor.NTSB SEA99LA088Accident · No injuriesLimited investigationFinal reportRyan Navion B · Klamath Falls, ORThe pilot's failure to reinstall the engine oil filler cap during preflight, resulting in engine oil loss and the necessity for an immediate landing.NTSB LAX97FA330Accident · 2 fatalField investigationFinal reportRyan Navion B · Pacoima, CAthe dual student's improper positioning of the fuel selector and the CFI's inadequate supervision, which led to a takeoff with the auxiliary fuel tank selected and resulted in fuel starvation. A contributing factor was the position of the nomenclature on the…NTSB ANC94LA117Accident · No injuriesLimited investigationFinal reportStinson 108-1 · Anchorage, AKThe binding in the mechanical fuel selector valve, and lack of suitable terrain for a forced landing.NTSB ATL94LA054Accident · No injuriesLimited investigationFinal reportHelio HE391B · Saluda, SCThe pilot's and mechanic's failure to adequately inspect the aircraft fuel system which resulted in fuel starvation.NTSB ANC90LA178Accident · No injuriesLimited investigationFinal reportHelio H-391B · Circle, AKPilot-in-command's failure to maintain airplane control and the pilot's failure to identify the stall.NTSB CHI90LA031Accident · No injuriesLimited investigationFinal reportHelio H-391B · Plainwell, MIFailure of the crosswind landing gear system to engage on the left main gear due to improper rigging adjustment by maintenance personnel. Factors related to the accident were: unfavorable wind conditions (gusts and quartering crosswind) and soft terrain in…NTSB BFO89FA069Accident · 3 fatalField investigationFinal reportBeech B50 · Church Creek, MDVFR flight into IMC and pilot disorientation, which resulted in the loss of aircraft control. Contributing to the accident was the pilot's lack of instrument experience, darkness, and the adverse weather condition.NTSB MIA89LA038Accident · No injuriesLimited investigationFinal reportRyan Navion B · Vero Beach, FLThe plt stated that drg flt, the eng lost power & he was unable to restart it. Drg a forced landing in a field, the acft struck three cows that were in a ravine & moved in front of the acft as it was apchg to land. A post acdnt exam of the acft revealed there…NTSB BFO88LA032Accident · No injuriesLimited investigationFinal reportDreyer-Starduster SA-300 · Richlands, VAAfter touchdown, during the landing roll, the acft veered sharply to the left. The plt attempted to correct this action by applying right rudder and the acft veered 45 degrees to the right. The acft traveled off the right side of the rwy and came to rest on…NTSB FTW87FA177Accident · Minor injuriesField investigationFinal reportAero Commander 520 · Carrollton, TXAcft was destroyed when it struck pwr lines and the grnd during a single eng go-around. Following a left eng shut down due to severe vibrations, the plt overflew one arpt to return to his home base. En route, he elected not to go to full pwr due to a 3 min…NTSB LAX87DUG01Accident · No injuriesFinal reportAero Commander 520 · Lucerne Valley, CADuring a pleasure flt, the plt reported that the right engine caught on fire. The plt made a landing on dry lake bed and disembarked from the plane examination of the wreckage revealed that the path of the landing roll showed no signs of melted metal or…NTSB NYC86LA244Accident · Serious injuriesLimited investigationFinal reportRyan Navion · Beaver Falls, PAThe plt stated that the acft experienced engine problems during cruise flt and crashed about one mile northeast of Beaver Falls, PA. Post accident testing revealed that the engine was capable of developing power in accordance with the manufacturer's…NTSB DEN86LA040Accident · No injuriesLimited investigationFinal reportHelio H-391B · Bozeman, MTAccording to personnel in the area, the plt radioed he had smoke in the cockpit and was returning to gallantin field, his departure point. Later, the plt transmitted that the eng lost total pwr and he was making a forced landing. During the investigation, it…NTSB FTW84LA356Accident · Serious injuriesLimited investigationFinal reportGulfstream 520 · Goliad, TXAcft was found abandoned. Wreckage scene indicates collision with trees prior to collision with terrain. Acft suspected of being used for illegal cargo operations.NTSB MIA84LA227Accident · No injuriesLimited investigationFinal reportAero Commander 520 · Stuart, FLThe acft collided with a fence at the departure end of the rwy during takeoff. The acft tires were grossly under inflated and the turf rwy was wet and soft. One witness said the acft made an intersection takeoff without using the entire rwy length. After the…NTSB ANC84LA126Accident · No injuriesLimited investigationFinal reportGrumman G-44A · Shanin Lake, AKThe plt reported that shortly after takeoff the acft encountered severe wind shear. The plt lost directional control of the acft & it collided with a mud bank.NTSB FTW84FA047Accident · 2 fatalField investigationFinal reportAero Commander 520 · Clines Corners, NMThe non-instrument rated plt was on ferry flt from bartlesville, ok to ontario, CA. An en route stop was made at tucumcari, NM, where the acft was refueled & 14 qts of oil was added to the left eng. The line boy who serviced the acft saw no visible oil leaks…NTSB CHI83LA248Accident · No injuriesLimited investigationFinal reportHelio H-391B · Croton, MIThe acft collided with wires on an approach to a lake.NTSB ANC83LA011Accident · No injuriesLimited investigationFinal reportBeech 50 · Quinhagak, AKLeft engine lost power after takeoff. Pilot feathered left engine and returned to runway on one engine. Since he was overshooting he elected to land on grass wheels up to avoid overrun and collision with ditch. The following discrepancies were found: exhaust…NTSB LAX82FA357Accident · 3 fatalField investigationFinal reportAero Commander 520 · Agoura, CADuring departure, the pilot climbed in IFR conditions to 600O ft. after leveling, a frequency change was made and he was cleared to 8000 ft, which he acknowledged. About 2 min later, the controller radioed to the pilot that he was about 4 mi north of the…NTSB MIA82DKA03Accident · No injuriesClosedAero Comdr 520 · Cabo Rojo, PRNTSB ATL82FKQ03Accident · Serious injuriesClosedAero Cmndr 520 · Biloxi, MSNTSB SEA82FYE30Accident · No injuriesClosedHelio H-391B · Bellingham, WANTSB FTW81DQA19Accident · No injuriesClosedNavion B · Las Vegas, NMNTSB FTW79FPJ24Accident · Serious injuriesClosedNavion 8 · Edmond, OKNTSB FTW79DRD16Accident · Minor injuriesClosedAero Comm 520 · New Orleans, LANTSB FTW78FQD26Accident · Minor injuriesClosedNavion B · El Paso, TXNTSB MIA78DLG14Accident · No injuriesClosedNavion B · Abbeville, SCNTSB MKC78DCG06Accident · No injuriesClosedAero Comdr 520 · Lamar, MONTSB NYC78FGM07Accident · No injuriesClosedHelio Acft 391 · Bedford, PANTSB MKC77FER09Accident · No injuriesClosedAero Comdr 520 · St Paul, MNNTSB ANC77DAH05Accident · No injuriesClosedHelio Acft H-391B · Anchorage, AKNTSB LAX76FUQ28Accident · Minor injuriesClosedNavion B · Ojai, CANTSB MKC76FCG06Accident · No injuriesClosedBeech 50 · Kansas City, MO