# NTSB investigations, OK: Airframe/component/system failure/malfunction 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 · 57 cases ## Latest cases - [NTSB DFW08FA038](https://openairdocs.org/ntsb/DFW08FA038.md): Cessna T210M · Tulsa, OK · Accident · 2 fatal · Field investigation · Final report · Nov 28, 2007 · N3NG · Destroyed > The pilot's failure to maintain clearance from the power transmission line(s). Contributing to the accident were the loss of aircraft electrical power, diverted attention, and the night conditions. - [NTSB DFW07LA108](https://openairdocs.org/ntsb/DFW07LA108.md): Cessna A188A · Clinton, OK · Accident · Serious injuries · Limited investigation · Final report · May 11, 2007 · N4413Q · Substantial damage > Separation of the exhaust stack and resulting vapor lock. A contributing factor was the none suitable terrain for the forced landing. - [NTSB DFW07FA004](https://openairdocs.org/ntsb/DFW07FA004.md): Aero Commander 690A · Antlers, OK · Accident · 4 fatal · Field investigation · Final report · Oct 15, 2006 · N55JS · Destroyed > The pilot's failure to reduce airspeed while operating in an area of moderate turbulence, resulting in an in-flight break up. Contributing factors were the pilot's decision to exceed the maximum takeoff weight, and the prevailing turbulence. - [NTSB DFW05FA242](https://openairdocs.org/ntsb/DFW05FA242.md): Akro Tech Aviation Inc. Giles G-300 · Yukon, OK · Accident · 1 fatal · Field investigation · Final report · Sep 18, 2005 · N300NW · Destroyed > The catastrophic separation of the canopy as result of the failure of the forward canopy hinge while performing aerobatics and the subsequent incapacitation of the pilot. - [NTSB DFW05CA194](https://openairdocs.org/ntsb/DFW05CA194.md): Cessna 175A · Graham, OK · Accident · No injuries · Data collection · Final report · Jul 28, 2005 · N6776E · Substantial damage > The impending loss of engine power as result of the failure of the generator mounting gasket resulting in engine oil starvation. A contributing factor was the lack of suitable terrain for the precautionary landing. - [NTSB DFW05IA156](https://openairdocs.org/ntsb/DFW05IA156.md): British Aerospace Avro 146-RJ85A · Oklahoma City, OK · Incident · Minor injuries · Incident investigation · Final report · Jun 10, 2005 · N530XJ · Minor damage > Failure of a high pressure hydraulic line from fatigue as a result of a manufacturing defect. - [NTSB DFW05LA019](https://openairdocs.org/ntsb/DFW05LA019.md): Bell 206L1 · Sapulpa, OK · Accident · Minor injuries · Limited investigation · Final report · Nov 9, 2004 · N1075P · Substantial damage > The loss of tail rotor drive as a result of a blanket coming in contact with the tail rotor blades, after the baggage compartment door unlatched during flight. A contributing factor was the "dusk" light condition that prevailed at the time of the accident. - [NTSB FTW04LA148](https://openairdocs.org/ntsb/FTW04LA148.md): Bruce Moore Skybolt · Altus, OK · Accident · No injuries · Limited investigation · Final report · May 23, 2004 · N25BM · Substantial damage > The partial in-flight separation of the wing fabric and rib structure due to an inadequate material installed by the airplane builder. - [NTSB FTW04IA078](https://openairdocs.org/ntsb/FTW04IA078.md): Beech C90 · Oklahoma City, OK · Incident · No injuries · Incident investigation · Final report · Feb 19, 2004 · N21 · Minor damage > The failure of the right main landing gear to extend due to an improperly installed attachment bolt by other maintenance personnel. - [NTSB FTW03FA145](https://openairdocs.org/ntsb/FTW03FA145.md): Bell Shelby Aero 47G2 · Ardmore, OK · Accident · 2 fatal · Field investigation · Final report · May 7, 2003 · N1774 · Destroyed > The pilot's failure to control the rate of descent, which resulted in an improper touchdown of the helicopter. A contributing factor was the loss of throttle control for undetermined reasons. - [NTSB FTW03FA053](https://openairdocs.org/ntsb/FTW03FA053.md): Cessna 172N · Lindsay, OK · Accident · 1 fatal · Field investigation · Final report · Nov 29, 2002 · N5155E · Destroyed > The in-flight separation of the right wing due to the missing nut that secures the right wing's strut to fuselage fitting to the fuselage. - [NTSB FTW03FA028](https://openairdocs.org/ntsb/FTW03FA028.md): Hughes 269A · Fort Gibson, OK · Accident · 1 fatal · Field investigation · Final report · Nov 1, 2002 · N8885F · Destroyed > The in-flight separation of the tail boom resulting from the failure of the fuselage to tail boom attachment fitting lugs, due to fatigue. - [NTSB FTW02LA205](https://openairdocs.org/ntsb/FTW02LA205.md): Piper PA-28-161 · Purcell, OK · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 2002 · N96PF · Destroyed > The in-flight cabin fire as result of non-compliance with an AD and a Service Bulletin. A contributing factor to the accident was night conditions. - [NTSB FTW02LA190](https://openairdocs.org/ntsb/FTW02LA190.md): Beech BE-300 · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Jun 22, 2002 · N224CR · Substantial damage > The pilot's inadequate preflight of the airplane resulting in the in-flight separation of the left engine inboard access door. - [NTSB FTW02IA097](https://openairdocs.org/ntsb/FTW02IA097.md): Canadair CL-600-2B19 · Tulsa, OK · Incident · No injuries · Incident investigation · Final report · Mar 14, 2002 · N960CA · No damage > The failure of the horizontal stabilizer control system for undetermined reasons. - [NTSB FTW00LA010](https://openairdocs.org/ntsb/FTW00LA010.md): Piper PA-18-150 · Granite, OK · Accident · Serious injuries · Limited investigation · Final report · Oct 11, 1999 · N4473A · Substantial damage > Corrosion failure of the fuselage support tubing below the right wing forward attach fitting due to inadequate maintenance. - [NTSB FTW99LA272](https://openairdocs.org/ntsb/FTW99LA272.md): Cessna 150F · Poteau, OK · Accident · 1 fatal · Limited investigation · Final report · Oct 1, 1999 · N8092S · Substantial damage > The instructor pilot's inadequate in-flight decision making, which resulted in the continued flight with a disabled generator and subsequent total failure of the electrical system. Factors were the installation of the inadequate generator fuse by unknown… - [NTSB FTW99FA123](https://openairdocs.org/ntsb/FTW99FA123.md): Cessna 402C · Goldsby, OK · Accident · 1 fatal · Field investigation · Final report · Apr 27, 1999 · N819BW · Destroyed > The fatigue failure of the right wing spar as a result of inadequate quality control during manufacture of the spar. A factor was the inadequate inspection of the right wing by maintenance personnel, which failed to detect the crack. - [NTSB FTW98LA234](https://openairdocs.org/ntsb/FTW98LA234.md): Harding Revolution MINI-500B · Grove, OK · Accident · Minor injuries · Limited investigation · Final report · May 20, 1998 · N6144S · Destroyed > The improper alignment of the main drive belt by the owner/pilot/mechanic, which resulted in the failure of the main drive belt. A factor was the lack of suitable terrain for the forced landing. - [NTSB FTW98IA130](https://openairdocs.org/ntsb/FTW98IA130.md): Saab-Scania 340B · Lawton, OK · Incident · No injuries · Incident investigation · Final report · Feb 22, 1998 · N396AE · Minor damage > the collapse of the left main landing gear during landing roll as result of a shorted weight-on-wheels relay. Contributing factors were the insufficient information available to the flight crew in the company's quick reference handbook (QRH), and the… - [NTSB FTW98LA124](https://openairdocs.org/ntsb/FTW98LA124.md): Piper PA-22-108 · Frederick, OK · Accident · No injuries · Limited investigation · Final report · Feb 3, 1998 · N4654Z · Substantial damage > The loss of wheel brakes due to the failure of the brake actuating cable. A factor was the tailwind. - [NTSB FTW97LA156](https://openairdocs.org/ntsb/FTW97LA156.md): Rockwell 114 · Oklahoma City, OK · Accident · No injuries · Limited investigation · Final report · Apr 7, 1997 · N4861W · Destroyed > The exhaust manifold cracking due to the pilot's inadequate maintenance modification of the exhaust system which resulted in a fire. A factor was the lack of suitable terrain for the forced landing. - [NTSB FTW97FA135](https://openairdocs.org/ntsb/FTW97FA135.md): Teschendorf Cassutt Sport · Stilwell, OK · Accident · 1 fatal · Field investigation · Final report · Mar 20, 1997 · N86T · Destroyed > failure of the right wing spar and/or debonding of the right wing skin, which resulted in separation of the wing skin and a portion of the right wing, during high speed flight. Factors related to the accident were: previous wing damage and inadequate… - [NTSB FTW97LA007](https://openairdocs.org/ntsb/FTW97LA007.md): Hispano Aviacion HA-200 Saeta · Elk City, OK · Accident · No injuries · Limited investigation · Final report · Oct 5, 1996 · N3179K · Substantial damage > The loss of aircraft control due to a fuel imbalance as a result of a partial failure of the fuel jettison system. A factor was that fuel could not be transferred from the left wing tip fuel tank to the rear fuselage fuel tank. - [NTSB FTW95LA258](https://openairdocs.org/ntsb/FTW95LA258.md): Beech 35 · Kingston, OK · Accident · Serious injuries · Limited investigation · Final report · Jun 23, 1995 · N5273C · Substantial damage > A malfunction of the propeller governor due to a loose control cable. - [NTSB FTW95LA212](https://openairdocs.org/ntsb/FTW95LA212.md): Piper PA-23-160 · Owasso, OK · Accident · No injuries · Limited investigation · Final report · May 20, 1995 · N3245P · Substantial damage > The failures of the landing gear hydraulic pump and the emergency gear extension system as result of inadequate maintenance by maintenance personnel. - [NTSB FTW94FA044](https://openairdocs.org/ntsb/FTW94FA044.md): Upton Mustang M-II · Guthrie, OK · Accident · 1 fatal · Field investigation · Final report · Dec 5, 1993 · N4YP · Destroyed > Was the in flight failure of the left aileron for reasons undetermined. - [NTSB FTW92IA184](https://openairdocs.org/ntsb/FTW92IA184.md): Boeing 737-222 · Oklahoma City, OK · Incident · No injuries · Incident investigation · Final report · Jul 15, 1992 · N12235 · No damage > Hydraulic fluid exhaustion due to the chafed 'a' system hydraulic line and the improper installation by unknown maintenance personnel of the 'b' system line. - [NTSB FTW92LA072](https://openairdocs.org/ntsb/FTW92LA072.md): Ryan Navion A · Oklahoma City, OK · Accident · Serious injuries · Limited investigation · Final report · Feb 23, 1992 · N39JH · Substantial damage > The propeller hydraulic control pitch setting being incorrect for undetermined reasons. A factor in the accident was the pilot's failure to identify and correct the pitch setting as the propeller went to a higher setting. - [NTSB FTW90DPJ12](https://openairdocs.org/ntsb/FTW90DPJ12.md): Massegee Rebel 300 · El Reno, OK · Accident · No injuries · Final report · Sep 17, 1990 · N469RR · Destroyed > Failure of the elevator control rod at the bell crank. - [NTSB FTW90DPJ11](https://openairdocs.org/ntsb/FTW90DPJ11.md): Dooley Mustang MII · Cashion, OK · Accident · No injuries · Final report · Sep 15, 1990 · N7015A · Destroyed > The separation of a 14 inch section of one propeller blade due to previous damage. - [NTSB FTW90DPJ05](https://openairdocs.org/ntsb/FTW90DPJ05.md): Bell 47G-4A · Bixby, OK · Accident · Minor injuries · Final report · Apr 14, 1990 · N2238W · Destroyed > Loss of control due to undetermined mechanical failure. - [NTSB FTW90DPJ03](https://openairdocs.org/ntsb/FTW90DPJ03.md): Piper PA36-400 · Temple, OK · Accident · Minor injuries · Final report · Mar 22, 1990 · N2331X · Substantial damage > Failure of an aileron attachment (bolt) due to fatigue. - [NTSB FTW89LA135](https://openairdocs.org/ntsb/FTW89LA135.md): Cessna 421 · Okmulgee, OK · Accident · Serious injuries · Limited investigation · Final report · Jul 13, 1989 · N699PC · Substantial damage > Failure of the nose gear extension assembly and the pilot's improper precautionary landing procedures that included securing the engines prior to a point where a safe landing was assured. - [NTSB FTW89DPJ08](https://openairdocs.org/ntsb/FTW89DPJ08.md): Grumman G-164 · Guymon, OK · Accident · Serious injuries · Final report · Jul 8, 1989 · N788Y · Substantial damage > Failure of the upper right engine mount (firewall attach bolt) due to fatigue, and failure of the lower right mounting bolt for an unknown reason, which allowed overload failure of the two remaining mounting bolts and separation of the engine. - [NTSB FTW89DPJ07](https://openairdocs.org/ntsb/FTW89DPJ07.md): Beech T-34 · Haskell, OK · Accident · 2 fatal · Final report · Jun 24, 1989 · N34CJ · Destroyed > Failure of the pilot to maintain adequate airspeed, which resulted in an inadvertent stall. Factors related to the accident were: a leak in the pitot system, failure of the pilot to obtain adequate maintenance/inspection of the pitot system, and his lack of… - [NTSB FTW89DPJ02](https://openairdocs.org/ntsb/FTW89DPJ02.md): Ercoupe 415C · Oklahoma City, OK · Accident · 2 fatal · Final report · Dec 21, 1988 · N99636 · Destroyed > During flight, the airplane appeared to go into a steep banked spiral from which it did not recover. It struck a two-car detached garage and then the ground. Inspection revealed that the fabric of both wings had been installed improperly, and part of the… - [NTSB FTW89FA023](https://openairdocs.org/ntsb/FTW89FA023.md): Beech A36 · Oklahoma City, OK · Accident · 2 fatal · Field investigation · Final report · Nov 20, 1988 · N6639R · Destroyed > The plt was briefed on flt prctns for IFR conds, tstms & ocnl mod rime icing. Drg the climb, he told ATC he was having trouble with his vacuum & was disoriented. ATC clrd him for altitudes he could use & bgn providing no-gyro vectors. A wxcheck revealed there… - [NTSB FTW88DPJ13](https://openairdocs.org/ntsb/FTW88DPJ13.md): Nord 1101 · Ardmore, OK · Accident · Serious injuries · Final report · Sep 24, 1988 · N5337M · Substantial damage > Immediately after liftoff, the airplane abruptly turned left, nosed down, and struck the ground. Examination of the electrical pitch control of the propeller revealed the propeller blades to be in the high pitch, low RPM position. Due to extreme damage of the… - [NTSB FTW88DPJ12](https://openairdocs.org/ntsb/FTW88DPJ12.md): Snyder Stolp SA-300 · Oklahoma City, OK · Accident · 1 fatal · Final report · Sep 17, 1988 · N57DH · Destroyed > Total failure of the rudder control due to failure of the metal welds on the cable attachment to the rudder pedal, due to improper welding by the manufacturer. - [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 FTW88IA147](https://openairdocs.org/ntsb/FTW88IA147.md): Piper PA-31-350 · Oklahoma City, OK · Incident · No injuries · Incident investigation · Final report · Aug 10, 1988 · N3589B · Minor damage > The flight was an instructional flight with three pilots onboard. The airplane departed on runway 17R and was 300 to 400 feet AGL when one blade of the right propeller separated from the hub, followed by the remainder of the propeller. The PIC made an… - [NTSB FTW88DPJ07](https://openairdocs.org/ntsb/FTW88DPJ07.md): Northrop C-125A · Tulsa, OK · Accident · Minor injuries · Final report · Jun 29, 1988 · N3756Q · Substantial damage > The pilot did not hold a type rating or written authorization to act as pilot in command. The co-pilot did not hold a type rating or written authorization to act as second in command and his medical had expired. The aircraft did not have an airworthiness… - [NTSB FTW87LA124](https://openairdocs.org/ntsb/FTW87LA124.md): Cessna T210N · Tahlequah, OK · Accident · No injuries · Limited investigation · Final report · May 11, 1987 · N5342A · Substantial damage > The right brake disk separated from the hub when brakes were applied during landing rollout. The aircraft veered left off the runway and into a drainage ditch where the horizontal stabilizer contacted the ground, damaging both of its spars. - [NTSB FTW86LA037](https://openairdocs.org/ntsb/FTW86LA037.md): Boeing A75N1 · Yukon, OK · Accident · No injuries · Limited investigation · Final report · Jan 18, 1986 · N4935N · Substantial damage > The left brake locked after the aircraft rolled a short distance during landing. Aircraft slowed until about 20 mph forward speed and then flipped inverted and stopped. Post accident examination revealed the brake shoe return spring on the left brake was… - [NTSB FTW86LPJ06](https://openairdocs.org/ntsb/FTW86LPJ06.md): Aerospatiale SA319B · Tulsa, OK · Accident · No injuries · Final report · Jan 7, 1986 · N67102 · Substantial damage > The main rotor blades struck the tail boom after liftoff and vibration was violent. When the plt heard metal contact he pulled off the throttle and made an autorotation landing from about 4 ft AGL. - [NTSB FTW85LA320](https://openairdocs.org/ntsb/FTW85LA320.md): Cessna 172N · Sallisaw, OK · Accident · No injuries · Limited investigation · Final report · Aug 14, 1985 · N738XZ · Substantial damage > The plt stated he had an electrical failure and elected to make a precautionary landing at Sallisaw municipal arpt. Equipment was on the rwy and the plt elected to land on a grass strip next to the rwy. He touched down and during rollout thought he could not… - [NTSB FTW85FA131](https://openairdocs.org/ntsb/FTW85FA131.md): Piper PA-34-220T · Stigler, OK · Accident · 4 fatal · Field investigation · Final report · Mar 3, 1985 · N8160K · Destroyed > The plt filed a VFR flt plan after the wx improved from IFR to VFR with a chance of thunderstorms en route. Ocnl mod turbulence below 5000 ft was forcast due to strong/gusty low lvl wnds. While the acft was en route, a gnd witness heard the engs rev up more… - [NTSB FTW85FA112](https://openairdocs.org/ntsb/FTW85FA112.md): Cessna 402B · Altus, OK · Accident · 2 fatal · Field investigation · Final report · Feb 6, 1985 · N5780M · Destroyed > During an eng start, prior to the flt, the l eng backfired 2 or 3 times. A witness described the 1st backfired as 'the loudest I have ever heard.' When the acft took off, two persons living near the departure end of the rwy noted that the acft (believed to be… - [NTSB FTW85IA028](https://openairdocs.org/ntsb/FTW85IA028.md): Swearingen SA226TC · Tulsa, OK · Incident · No injuries · Incident investigation · Final report · Oct 26, 1984 · N511SS · Minor damage > During cruise, the crew experienced a loss of hydraulic pressure & smoke in the cockpit, then donned their oxygen masks. They used the emerg gear extension system & made a safe emerg landing. An exam revealed a cracked 2000 PSI aluminum hydraulic line had… Next page: https://openairdocs.org/ntsb.md?state=OK&occurrence=130&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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=130&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.