# NTSB investigations: Lycoming O&VO-360 series, OK NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 2 · 83 cases ## Latest cases - [NTSB CEN26LA021](https://openairdocs.org/ntsb/CEN26LA021.md): Beech C23 · Tulsa, OK · Accident · No injuries · Class 4 · Limited · Final report · Oct 15, 2025 · N2130W · Substantial damage > The pilot’s improper landing flare which resulted in a hard bounced landing. - [NTSB CEN24LA091](https://openairdocs.org/ntsb/CEN24LA091.md): Piper PA-24 · Hugo, OK · Accident · No injuries · Class 3 · Limited · Final report · Jan 17, 2024 · N7059P · Substantial damage > The binding of a main landing gear push-pull cable, which rendered the landing gear inoperative in a partially retracted position. Contributing to the accident was the pilot’s delay in executing a landing, which led to a total loss of engine power due to fuel… - [NTSB CEN23LA157](https://openairdocs.org/ntsb/CEN23LA157.md): Acro Sport II · Skiatook, OK · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 11, 2023 · N39GC · Substantial damage > The pilot's failure to maintain directional control during landing in a gusting crosswind. - [NTSB CEN20CA249](https://openairdocs.org/ntsb/CEN20CA249.md): Mooney M20C · Lahoma, OK · Accident · No injuries · Class 4 · Data collection · Final report · Jun 1, 2020 · N6728U · Substantial damage > The loss of engine power due to fuel exhaustion and the pilot’s improper fuel planning before the flight. - [NTSB CEN16LA164](https://openairdocs.org/ntsb/CEN16LA164.md): Mooney M20C · Sand Springs, OK · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 2016 · N6870N · Substantial damage > A total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's inadequate preflight inspection. - [NTSB CEN14FA010](https://openairdocs.org/ntsb/CEN14FA010.md): Cessna 177 · Clayton, OK · Accident · 1 fatal · Field investigation · Final report · Oct 18, 2013 · N30495 · Substantial damage > Controlled flight into terrain for reasons that could not be determined from the available evidence. - [NTSB CEN13CA475](https://openairdocs.org/ntsb/CEN13CA475.md): Piper PA-28-180 · Poteau, OK · Accident · No injuries · Data collection · Final report · Aug 10, 2013 · N7811W · Substantial damage > The pilot’s application of excessive left rudder during the takeoff roll, resulting in a loss of directional control, his failure to correct the excursion with opposite rudder, and his failure to abort the takeoff in a timely manner. - [NTSB CEN11CA609](https://openairdocs.org/ntsb/CEN11CA609.md): Mooney M20C · Allen, OK · Accident · Minor injuries · Data collection · Final report · Aug 30, 2011 · N5501Q · Substantial damage > A total loss of engine power in flight due to fuel starvation as a result of the pilot’s inadequate fuel management. - [NTSB CEN10LA572](https://openairdocs.org/ntsb/CEN10LA572.md): Cessna 172RG · Tulsa, OK · Accident · Serious injuries · Limited investigation · Final report · Sep 28, 2010 · N5145U · Destroyed > A shorted terminal lug on the landing gear hydraulic pump which resulted in a cabin fire. Contributing to the accident was the lack of clear installation procedures for the hydraulic pump. - [NTSB CEN10FA385](https://openairdocs.org/ntsb/CEN10FA385.md): Cessna 177B · Owasso, OK · Accident · 3 fatal · Field investigation · Final report · Jul 12, 2010 · N345MT · Substantial damage > The pilot’s failure to maintain adequate airspeed during an engine-out approach to the runway, resulting in an aerodynamic stall and spin. Contributing to the accident was the pilot’s inadequate preflight planning, which resulted in a loss of engine power due… - [NTSB CEN10CA311](https://openairdocs.org/ntsb/CEN10CA311.md): Piper PA-44-180 · Okmulgee, OK · Accident · No injuries · Data collection · Final report · Jun 1, 2010 · N9290P · Substantial damage > The student pilot’s inadvertent retraction of the nose landing gear and the flight instructor's delayed response. - [NTSB CEN09CA133](https://openairdocs.org/ntsb/CEN09CA133.md): Brantly B-2B · Cement, OK · Accident · Minor injuries · Data collection · Final report · Jan 14, 2009 · N2252U · Substantial damage > The pilot's failure to maintain proper airspeed and descent rate during approach, which resulted in a hard landing. Contributing to the accident were the nearby power lines. - [NTSB DEN08LA163](https://openairdocs.org/ntsb/DEN08LA163.md): Beech C23 · Duncan, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 28, 2008 · N6714E · Substantial damage > A total loss of engine power due to the fatigue failure of the engine crankshaft. Contributing to the accident were the improper maintenance to the engine crankshaft, improper reassembly of the engine, and failure to follow the engine manufacturer's overhaul… - [NTSB FTW03LA011](https://openairdocs.org/ntsb/FTW03LA011.md): Brantly Helicopter B-2B · Vinson, OK · Accident · No injuries · Limited investigation · Final report · Oct 12, 2002 · N9008H · Substantial damage > The pilot's inadvertent flight into adverse weather conditions during cruise resulting in his failure to maintain control of the helicopter, and his failure to maintain rotor rpm. Contributing factors relating to the accident included the frontal activity… - [NTSB FTW02LA224](https://openairdocs.org/ntsb/FTW02LA224.md): Cessna 172S · Marietta, OK · Accident · Serious injuries · Limited investigation · Final report · Aug 4, 2002 · N431ME · Substantial damage > The pilot's failure to maintain adequate airspeed which resulted in a stall. - [NTSB FTW01LA126](https://openairdocs.org/ntsb/FTW01LA126.md): Beech BE-76 · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · May 21, 2001 · N6003Y · Substantial damage > the dual student pilot's failure to maintain clearance from the hangar while taxing. - [NTSB FTW01LA113](https://openairdocs.org/ntsb/FTW01LA113.md): Cessna 172RG · Washington, OK · Accident · Minor injuries · Limited investigation · Final report · May 3, 2001 · N9696B · Substantial damage > the in-flight fire for an undetermined reason, which resulted in a forced landing. A contributory factor was the lack of suitable terrain for the forced landing. - [NTSB FTW01FA015](https://openairdocs.org/ntsb/FTW01FA015.md): Beech BE-76 · Tulsa, OK · Accident · 2 fatal · Field investigation · Final report · Oct 31, 2000 · N23823 · Destroyed > the instructor pilot's failure to maintain the airplane's minimum controllable airspeed during a single-engine go-around, which resulted in his loss of control of the airplane. Contributory factors were the engine fire, the pilot's failure to follow the… - [NTSB FTW00LA163](https://openairdocs.org/ntsb/FTW00LA163.md): Piper PA-28-180 · Tulsa, OK · Accident · Serious injuries · Limited investigation · Final report · Jun 1, 2000 · N7271W · Substantial damage > the loss of engine power for an undetermined reason. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB FTW99FA132](https://openairdocs.org/ntsb/FTW99FA132.md): Grumman American AA-5B · Claremore, OK · Accident · No injuries · Field investigation · Final report · May 8, 1999 · N4546J · Substantial damage > The fatigue fracture of the propeller bolts resulting from the improper installation of the propeller assembly. - [NTSB FTW99LA010](https://openairdocs.org/ntsb/FTW99LA010.md): Mooney M20A · Oklahoma City, OK · Accident · No injuries · Limited investigation · Final report · Oct 18, 1998 · N6534B · Substantial damage > The loss of engine power due to fuel starvation as result of the pilot's improper placement of the fuel tank selector switch. A factor was the lack of suitable terrain for the pilot to execute the forced landing. - [NTSB FTW98LA162](https://openairdocs.org/ntsb/FTW98LA162.md): Carter LONG-EZ · Lebanon, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 28, 1998 · N83LE · Substantial damage > The pilot's inadequate compensation for the tailwind and his ensuing failure to attain the proper touchdown point. Factors were the tailwind and the pilot's failure to adequately preflight the airplane which resulted in a partial loss of engine power due to… - [NTSB FTW97LA041](https://openairdocs.org/ntsb/FTW97LA041.md): Cessna 172RG · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Nov 1, 1996 · N9520B · Substantial damage > The failure of the main landing gear pivot gear assembly. - [NTSB FTW96LA249](https://openairdocs.org/ntsb/FTW96LA249.md): American General AG-5B · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Jun 15, 1996 · N115JE · Substantial damage > the pilot's improper planning/decision, which resulted in fuel exhaustion and loss of engine power, due to an inadequate supply of fuel. Darkness was a related factor. - [NTSB FTW95LA334](https://openairdocs.org/ntsb/FTW95LA334.md): Grumman American AA-5B · 0wasso, OK · Accident · No injuries · Limited investigation · Final report · Aug 6, 1995 · N4546J · Substantial damage > The pilot's delayed decision to abort the takeoff. The pilot's failure to properly calculate the performance data prior to takeoff was a factor. - [NTSB FTW95LA168](https://openairdocs.org/ntsb/FTW95LA168.md): Cessna 172 RG · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Apr 13, 1995 · N6394V · Substantial damage > The pilot's improper emergency procedure preventing emergency gear extension. A factor was the loss of electrical alternator power for undetermined reasons. - [NTSB FTW95LA172](https://openairdocs.org/ntsb/FTW95LA172.md): Brantly Helicopter B-2B · Elk City, OK · Accident · No injuries · Limited investigation · Final report · Mar 9, 1995 · N2266U · Substantial damage > The pilot's failure to maintain proper altitude during a hovering turn. A factor was the low temperature. - [NTSB FTW93LA204](https://openairdocs.org/ntsb/FTW93LA204.md): Cessna 177B · Shawnee, OK · Accident · No injuries · Limited investigation · Final report · Jul 4, 1993 · N18739 · Substantial damage > Fuel system exhaustion induced power loss for undetermined reasons. A factor was a lack of suitable terrain. - [NTSB FTW93LA199](https://openairdocs.org/ntsb/FTW93LA199.md): Maule MX-7-180 · Eufaula, OK · Accident · Serious injuries · Limited investigation · Final report · Jun 29, 1993 · N4UM · Substantial damage > The pilots improper compensation for the wind conditions. A factor was the crosswind - [NTSB FTW88LA152](https://openairdocs.org/ntsb/FTW88LA152.md): Brantly Helicopter B-2B · Sallisaw, OK · Accident · No injuries · Limited investigation · Final report · Aug 25, 1988 · N2264U · Substantial damage > Acft experienced a hard landing and rolled over following a loss of control in a hover. Plt delayed cutting the throttle in order to clear a ditch. Investigation revealed that the tail rotor driveshaft coupling retaining screw had separated. The separation… - [NTSB FTW85LA255](https://openairdocs.org/ntsb/FTW85LA255.md): Piper PA-28-181 · Tahlequah, OK · Accident · No injuries · Limited investigation · Final report · Jun 11, 1985 · N1601S · Substantial damage > The plt stated the acft was in flt slightly more than three hrs after it was refueled, before fuel exhaustion occurred. The acft reportedly was leaned during the flt. Post accident examination revealed no evidence of any fuel system leaks. Reason for the fuel… - [NTSB FTW85LA133](https://openairdocs.org/ntsb/FTW85LA133.md): Piper PA-28-181 · Bartlesville, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 3, 1985 · N7068C · Destroyed > After one uneventful full-stop landing the plt re-entered the pattern for a second landing. The plt truned to final at about 500 ft AGL and 65-70 KTS with the rwy lights in sight. Shortly thereafter, according to the plt, the landing light illuminated two… - [NTSB FTW85LA073](https://openairdocs.org/ntsb/FTW85LA073.md): Beech C23 · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Dec 10, 1984 · N2077L · Substantial damage > The acft experienced a power failure while in cruise flight at 1100 ft AGL. He stated that after switching tanks, the 'engine started twice bit failed to continue'. Investigation revealed that the left fuel tank was empty and the right tank had an… - [NTSB FTW83LA161](https://openairdocs.org/ntsb/FTW83LA161.md): Piper PA-28-180 · Guthrie, OK · Accident · No injuries · Limited investigation · Final report · Mar 18, 1983 · N6501J · Substantial damage > The pilot said he was waiting for an acft to clear the rwy. As he started to turn downfield for takeoff he pushed the throttle in, advancing the power instead of retarding it. The aircraft crossed the runway at an angle, became airborne and hit a tree. The… - [NTSB FTW82DA327](https://openairdocs.org/ntsb/FTW82DA327.md): Hughes 269A · Forgan, OK · Accident · No injuries · Final report · Aug 14, 1982 · N8827F · Substantial damage > The purpose of the flight was to look for a missing person. The pilot reported that during an approach to land, he lost tail rotor control and the helicopter began to spin to the right. He set the helicopter down while it was turning, but the right skid hit a… - [NTSB FTW82DA317](https://openairdocs.org/ntsb/FTW82DA317.md): Beech C23 · Afton, OK · Accident · No injuries · Final report · Aug 6, 1982 · N6756B · Substantial damage > During arrival, the pilot landed on runway 36 with a reported tail wind of 10 KTS to 12 KTS. He stated that during the landing, his airspeed was a little too fast and the aircraft bounced. On the second bounce, the aircraft landed on its nose gear and the… - [NTSB FTW82FPJ18](https://openairdocs.org/ntsb/FTW82FPJ18.md): Piper 28-181 · Oklahoma City, OK · Accident · Serious injuries · Final report · Jul 26, 1982 · N8229V · Substantial damage > The pilot had difficulty locating the airport at his destination. He touched down at a point more than halfway down the 3000 foot runway and realizing he would be unable to stop the aircraft, attempted a go-around. The main landing gear struck a roadside… - [NTSB FTW82DA105](https://openairdocs.org/ntsb/FTW82DA105.md): Piper PA-28-180 · Norman, OK · Accident · No injuries · Final report · Mar 29, 1982 · N2153T · Substantial damage > The aircraft's engine quit 15 minutes short of the destination on a cross country flight. The aircraft had 36 gallons of fuel on departure at 1600 CST and the accident occurred at 1915. A forced landing was made on a street in Norman, Oklahoma. - [NTSB FTW82FPM06](https://openairdocs.org/ntsb/FTW82FPM06.md): Grumman AA-5B · Bristow, OK · Accident · Serious injuries · Closed · Nov 11, 1981 · N1581R · Destroyed - [NTSB FTW81FPM22](https://openairdocs.org/ntsb/FTW81FPM22.md): Cessna 177B · Tulsa, OK · Accident · No injuries · Closed · Sep 16, 1981 · N35166 · Substantial damage - [NTSB FTW81FPJ38](https://openairdocs.org/ntsb/FTW81FPJ38.md): Beech C23 · Oklahoma City, OK · Accident · Minor injuries · Closed · Sep 9, 1981 · N9733Q · Substantial damage - [NTSB FTW81FPJ37](https://openairdocs.org/ntsb/FTW81FPJ37.md): Aero Comdr 100 · Oklahoma City, OK · Accident · No injuries · Closed · Sep 5, 1981 · N3702X · Substantial damage - [NTSB FTW81FPJ36](https://openairdocs.org/ntsb/FTW81FPJ36.md): Piper PA-28 · Blanchard, OK · Accident · No injuries · Closed · Aug 22, 1981 · N8304D · Substantial damage - [NTSB FTW80FPJ26](https://openairdocs.org/ntsb/FTW80FPJ26.md): Cessna 177 · Watonga, OK · Accident · Minor injuries · Closed · Jun 25, 1980 · N2167C · Substantial damage - [NTSB FTW80FPJ16](https://openairdocs.org/ntsb/FTW80FPJ16.md): Brantly B-2 · Frederick, OK · Accident · No injuries · Closed · May 3, 1980 · N2112U · Destroyed - [NTSB FTW80DPJ01](https://openairdocs.org/ntsb/FTW80DPJ01.md): Brantly B-2B · Guymon, OK · Accident · No injuries · Closed · Oct 1, 1979 · N2191U · Substantial damage - [NTSB FTW79FPM14](https://openairdocs.org/ntsb/FTW79FPM14.md): Piper PA-28 · Tahlequah, OK · Accident · No injuries · Closed · Sep 13, 1979 · N7049W · Substantial damage - [NTSB FTW78FPJ29](https://openairdocs.org/ntsb/FTW78FPJ29.md): Bellanca 8GCBC · Hinton, OK · Accident · 1 fatal · Closed · Jul 1, 1978 · N86899 · Destroyed - [NTSB FTW77FPM14](https://openairdocs.org/ntsb/FTW77FPM14.md): Beech C23 · Afton, OK · Accident · No injuries · Closed · Jun 17, 1977 · N9294S · Substantial damage - [NTSB FTW77FPM08](https://openairdocs.org/ntsb/FTW77FPM08.md): Piper PA-28 · Henryetta, OK · Accident · No injuries · Closed · May 3, 1977 · N7789N · Substantial damage Next page: https://openairdocs.org/ntsb.md?engine=41514&state=OK&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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" = 'OK' 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 ('41514')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41514&state=OK --- 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.