# NTSB investigations: Amateur-built UNKNOWN ENG

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 31 of 41 · 2,048 cases

## Cases, newest first

- [NTSB NYC93LA038](https://openairdocs.org/ntsb/NYC93LA038.md): Helio H-700 · Shelton, CT · Accident · 1 fatal · Limited investigation · Final report · Dec 6, 1992 · N50DV · Substantial damage
  > The pilot's failure to check the position of the landing gear before attempting a water landing.
- [NTSB LAX93LA047](https://openairdocs.org/ntsb/LAX93LA047.md): North American F-51D · Wellington, NV · Accident · 1 fatal · Limited investigation · Final report · Nov 21, 1992 · N117E · Destroyed
  > The pilot's improper handling of his airplane during the performance of an aerobatic maneuver with inadequate altitude.
- [NTSB LAX93LA039](https://openairdocs.org/ntsb/LAX93LA039.md): Glaser-Dirks DG400 · Calistoga, CA · Accident · No injuries · Limited investigation · Final report · Nov 14, 1992 · N360GG · Substantial damage
  > The failure of the brakes due to a separation of the brake cable for undetermined reasons. A factor in the accident was the tailwind condition during the landing rollout.
- [NTSB CHI93LA023](https://openairdocs.org/ntsb/CHI93LA023.md): Cessna 140 · Waverly, IA · Accident · No injuries · Limited investigation · Final report · Oct 27, 1992 · N4213N · Substantial damage
  > The pilot's excessive application of brakes during landing roll.
- [NTSB FTW93LA010](https://openairdocs.org/ntsb/FTW93LA010.md): Raven S-60A · Albuquerque, NM · Accident · Serious injuries · Limited investigation · Final report · Oct 8, 1992 · N8EN · 2 aircraft · Substantial damage
  > The pilot's failure to maintain visual lookout.
- [NTSB ANC92LA157](https://openairdocs.org/ntsb/ANC92LA157.md): Sikorsky S-58G · Port Alsworth, AK · Accident · No injuries · Limited investigation · Final report · Sep 5, 1992 · N822G · Destroyed
  > Inflight engine compartment fire and post landing fire of undetermined origin.
- [NTSB CHI92DEM05](https://openairdocs.org/ntsb/CHI92DEM05.md): Taylorcraft H-2 · Holland, MI · Accident · Serious injuries · Final report · Aug 22, 1992 · N15672 · Substantial damage
  > Not maintaining a sufficient airspeed during the reversal turn and encountering a stall/spin maneuver.
- [NTSB FTW92DPG12](https://openairdocs.org/ntsb/FTW92DPG12.md): Grumman G-164A · Mc Crory, AR · Accident · No injuries · Final report · Aug 10, 1992 · N6636Q · Substantial damage
  > The pilots failure to maintain directional control.
- [NTSB SEA92LA172](https://openairdocs.org/ntsb/SEA92LA172.md): Schweizer SGU 2-22CK · Ephrata, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1992 · N3907A · Substantial damage
  > The pilot misjudged the landing flare. Factors include a lack of total pilot expereince.
- [NTSB CHI92DEX04](https://openairdocs.org/ntsb/CHI92DEX04.md): Alkire Pietenpol · Delphi, IN · Accident · Minor injuries · Final report · Jul 31, 1992 · N2739 · Substantial damage
  > Separation of the propeller while in flight, and unsuitable terrain to effect a forced landing.
- [NTSB SEA92LA169](https://openairdocs.org/ntsb/SEA92LA169.md): Greth Cirrus VK30 · Rawlins, WY · Accident · No injuries · Limited investigation · Final report · Jul 29, 1992 · N303VK · Substantial damage
  > The pilot in command's failure to maintain control of the aircraft. Factors contributing to the accident were: crosswinds and gusts.
- [NTSB SEA92LA139](https://openairdocs.org/ntsb/SEA92LA139.md): Harriman N-3 Ultra PUP · Arlington, WA · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 1992 · N30843 · Destroyed
  > The partial loss of engine power, cause undetermined.
- [NTSB NYC92IA129](https://openairdocs.org/ntsb/NYC92IA129.md): Boeing 767-231ER · Jamica, NY · Incident · No injuries · Incident investigation · Final report · Jun 28, 1992 · N602TW · Minor damage
  > The failure of the fifth stage low pressure turbine vanes due to fatigue.
- [NTSB MIA92FA142](https://openairdocs.org/ntsb/MIA92FA142.md): Hughes 369HS · Labelle, FL · Accident · 1 fatal · Field investigation · Final report · Jun 26, 1992 · N9089F · Destroyed
  > The pilot-in-command's improper application of collective pitch during an autorotative landing resulting in insufficient rotor RPM and in-flight collision with trees and the terrain. Contributing to the accident was the total loss of engine power due to fuel…
- [NTSB FTW92LA140](https://openairdocs.org/ntsb/FTW92LA140.md): Ardovino Mariucci CRI-CRI MC-12 · Arlington, TX · Accident · Minor injuries · Limited investigation · Final report · May 23, 1992 · N71AM · Substantial damage
  > Total power loss caused by blocked carburetor screen and ignition points open beyond manufacturer's specification. A factor was inadequate annual inspection and ignition point maintenance adjustment not performed.
- [NTSB FTW92LA132](https://openairdocs.org/ntsb/FTW92LA132.md): Schweizer G-164D · Welsh, LA · Accident · No injuries · Limited investigation · Final report · May 14, 1992 · N8331K · Substantial damage
  > The engine failure at liftoff due to the failure of multiple turbine blades and the pilot's inability to maintain directional control during the aborted takeoff.
- [NTSB LAX92LA208](https://openairdocs.org/ntsb/LAX92LA208.md): Corbus/Winters BD-5B · Fresno, CA · Accident · No injuries · Limited investigation · Final report · May 9, 1992 · N811Q · Substantial damage
  > The total loss of engine power during initial climb due to a fracture and failure of the engine starter ring gear. A contributing factor which was related to the mechanical failure was the airplane owner's inadequate maintenance.
- [NTSB ATL92LA086](https://openairdocs.org/ntsb/ATL92LA086.md): Glaser-Dirks DG-600/18M · Newnan, GA · Accident · 1 fatal · Limited investigation · Final report · Apr 22, 1992 · N107T · Substantial damage
  > The loss of engine power for undetermined reasons, and the pilot's failure to maintain airspeed, which resulted in an inadvertent stall at too low of an altitude to effect recovery.
- [NTSB CHI92LA126](https://openairdocs.org/ntsb/CHI92LA126.md): Cessna 170B · St. James, MO · Accident · Serious injuries · Limited investigation · Final report · Apr 11, 1992 · N1966C · Substantial damage
  > The pilot's failure to maintain clearance from terrain during the attempted takeoff and climb out. A related factor was the rising terrain.
- [NTSB DCA92RA020](https://openairdocs.org/ntsb/DCA92RA020.md): Convair 640 · Kafoutine, Senegal · Accident · 30 fatal · Foreign investigation · Feb 2, 1992 · N862FW
- [NTSB DEN92IA014](https://openairdocs.org/ntsb/DEN92IA014.md): Cessna 172RG · Broomfield, CO · Incident · No injuries · Incident investigation · Final report · Dec 5, 1991 · N9320D · Minor damage
  > Failure of the left main landing gear pivot assembly due to ductile torsional overstress.
- [NTSB NYC91LA247](https://openairdocs.org/ntsb/NYC91LA247.md): Mcdonnell Douglas MD-82 · East Boston, MA · Accident · Serious injuries · Limited investigation · Final report · Sep 28, 1991 · N819NY · Minor damage
  > The malfunction of an electrical component in the cockpit, which resulted in smoke and the subsequent emergency evacuation of the passengers from the airplane.
- [NTSB ATL91LA165](https://openairdocs.org/ntsb/ATL91LA165.md): Icard, Claude M. Sonerai II LT · Morganton, NC · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 1991 · N9QC · Substantial damage
  > The pilot's failure to maintain directional control of the airplane on the runway, and the inadvertent rotation of the airplane, resulting in an unplanned flight.
- [NTSB CHI91LA263](https://openairdocs.org/ntsb/CHI91LA263.md): Beech 36 · Davenport, IA · Accident · No injuries · Limited investigation · Final report · Aug 15, 1991 · N25496 · 2 aircraft · Substantial damage
  > The inadequate visual lookout and poor inflight planning and decision making by the pilot of N97867. Factors in the accident are inoperative exterior lights and radio communication not possible.
- [NTSB NYC91DNC04](https://openairdocs.org/ntsb/NYC91DNC04.md): Laurent A. Cloutier BD-5B · Gilford, NH · Accident · Minor injuries · Final report · Aug 3, 1991 · N245BD · Substantial damage
  > Engine failure due to a faulty oil pressure relief valve resulting in an emergency landing on unsuitable terrain.
- [NTSB FTW91FA123](https://openairdocs.org/ntsb/FTW91FA123.md): Hughes 269B · Brickeys, AR · Accident · 1 fatal · Field investigation · Final report · Jul 18, 1991 · N11XC · Destroyed
  > The failure of the clutch control cable due to fraying which initiated the forced landing and the operator's failure to perform recommended inspections on the aircraft. Factors were the pilot's failure to maintain rotor RPM and the unsuitable terrain.
- [NTSB CHI91LA214](https://openairdocs.org/ntsb/CHI91LA214.md): Ercoupe 415-C · Sparta, MI · Accident · No injuries · Limited investigation · Final report · Jul 5, 1991 · N87169 · Substantial damage
  > Inadequate preflight by the pilot and the pilot's failure to reach a proper touchdown point.
- [NTSB ATL91FA117](https://openairdocs.org/ntsb/ATL91FA117.md): Fuji LM 1 · Keystone Hghts, FL · Accident · 2 fatal · Field investigation · Final report · Jun 29, 1991 · N2109L · 2 aircraft · Destroyed
  > Failure of the number four pilot (in N2100J) to maintain adequate visual lookout and/or clearance from the number three aircraft (N2109L).
- [NTSB CHI91DEP10](https://openairdocs.org/ntsb/CHI91DEP10.md): Allan R. Goldman Dragonfly · Kenosha, WI · Accident · No injuries · Final report · Jun 16, 1991 · N222TH · Substantial damage
  > Inadequate aircraft design and insufficient information regarding wing versus canard angle for an amateur built aircraft.
- [NTSB CHI91DEP06](https://openairdocs.org/ntsb/CHI91DEP06.md): Avid Flyer Avid Flyer · Endeavor, WI · Accident · No injuries · Final report · Jun 7, 1991 · N369AF · Substantial damage
  > The pilot in command's inability to effectively eliminate carburetor ice to avoid an emergency landing.
- [NTSB NYC91LA143](https://openairdocs.org/ntsb/NYC91LA143.md): Cessna 120 · Wellsville, PA · Accident · No injuries · Limited investigation · Final report · May 28, 1991 · N2714N · Substantial damage
  > A power loss due to a fuel system blockage which resulted in a forced landing.
- [NTSB NYC91DGT04](https://openairdocs.org/ntsb/NYC91DGT04.md): George E Heide, JR. Moni Motorglider · Annville, PA · Accident · No injuries · Final report · May 20, 1991 · N107GH · Substantial damage
  > The pilot's intentional landing on unsuitable terrain due to a loss of altitude precipitated by a downdraft.
- [NTSB SEA91LA106](https://openairdocs.org/ntsb/SEA91LA106.md): Beech A36 · Rawlins, WY · Accident · No injuries · Limited investigation · Final report · May 16, 1991 · N6724T · Substantial damage
  > The pilot's lack of familiarity with the aircraft, his lack of understanding of the electrical system, and a premature precautionary landing. Contributing to the accident were an alternator failure and the resultant false readings of the powerplant…
- [NTSB ATL91LA093](https://openairdocs.org/ntsb/ATL91LA093.md): Cessna 172I · Clanton, AL · Accident · Minor injuries · Limited investigation · Final report · May 14, 1991 · N46240 · Substantial damage
  > Failure of the pilot to maintain control of the aircraft during a go-around. The pilot's lack of experience was a related factor.
- [NTSB MIA91LA127](https://openairdocs.org/ntsb/MIA91LA127.md): Travel Air 2000 · Homestead, FL · Accident · No injuries · Limited investigation · Final report · Apr 27, 1991 · N1572 · Substantial damage
  > An on ground encounter with weather conditions that were favorable for carburetor icing at a low power setting (glide power), and failure of the pilot to abort the takeoff after recognizing that the eng was not developing full power during the initial climb.
- [NTSB SEA91LA092](https://openairdocs.org/ntsb/SEA91LA092.md): Smelser KR-2 · Spokane, WA · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 1991 · N570TS · Substantial damage
  > A failure of the fuel drain valve which resulted in fuel exhaustion and a loss of engine power.
- [NTSB LAX91LA175](https://openairdocs.org/ntsb/LAX91LA175.md): Snider RV6 · Paulden, AZ · Accident · Serious injuries · Limited investigation · Final report · Apr 16, 1991 · N2165U · Substantial damage
  > The pilot's poor preflight preparation and his failure to ensure that the fuel selector was properly positioned for flight.
- [NTSB SEA91LA083](https://openairdocs.org/ntsb/SEA91LA083.md): Aeronca 11AC · Port Orchard, WA · Accident · No injuries · Limited investigation · Final report · Apr 12, 1991 · N85948 · Substantial damage
  > The loss of engine power due to contaminated fuel system.
- [NTSB ATL91LA076](https://openairdocs.org/ntsb/ATL91LA076.md): David Lowe ULTRA-PUP · Waycross, GA · Accident · No injuries · Limited investigation · Final report · Apr 3, 1991 · N71427 · Substantial damage
  > The failure of the airplane battery, which prohibited the complete extension of the landing gear, resulting in a landing with the nose gear retracted. A factor in the accident was the soft terrain at the selected landing area.
- [NTSB LAX91LA120](https://openairdocs.org/ntsb/LAX91LA120.md): Boeing A75 · Marana, AZ · Accident · No injuries · Limited investigation · Final report · Mar 2, 1991 · N803RB · 2 aircraft · Substantial damage
  > The failure of the pilot in the trailing airplane to maintain clearance from the lead airplane.
- [NTSB SEA91LA031](https://openairdocs.org/ntsb/SEA91LA031.md): Beech 3NM · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Dec 9, 1990 · N9159B · Substantial damage
  > The failure of the right engine master rod.
- [NTSB MIA91IA032](https://openairdocs.org/ntsb/MIA91IA032.md): ATR ATR-42-300 · St. Thomas · Incident · No injuries · Incident investigation · Final report · Nov 26, 1990 · N971NA · Minor damage
  > The failure of the left main landing gear side brace lower arm due to fatigue resulting from corrosion formation, which resulted from improper design to prevent corrosion formation.
- [NTSB NYC91LA032](https://openairdocs.org/ntsb/NYC91LA032.md): Burkhart Grob G103A · Erwinna, PA · Accident · Serious injuries · Limited investigation · Final report · Nov 19, 1990 · N923BG · Substantial damage
  > The student pilot's improper landing technique and the instructor's inadequate supervision.
- [NTSB LAX91DUJ03](https://openairdocs.org/ntsb/LAX91DUJ03.md): Air Tractor AT-302 · Somerton, AZ · Accident · No injuries · Final report · Nov 16, 1990 · N4441S · Substantial damage
  > The failure of the number 3 exhaust valve which led to an engine failure and subsequent crash landing.
- [NTSB LAX91TL#02](https://openairdocs.org/ntsb/LAX91TL%2302.md): McDonnell Douglas 369E · Llano, CA · Accident · Minor injuries · Class 3 · Final report · Nov 10, 1990 · N234RF · Substantial damage
- [NTSB NYC91LA007](https://openairdocs.org/ntsb/NYC91LA007.md): Waco UPF-7 · Erwinna, PA · Accident · No injuries · Limited investigation · Final report · Oct 9, 1990 · N32091 · Substantial damage
  > The pilot's failure to maintain directional control during the take off roll.
- [NTSB MIA91FA001](https://openairdocs.org/ntsb/MIA91FA001.md): Erik K. Van Der Kaay Marco J-5 · Clearwater, FL · Accident · 1 fatal · Field investigation · Final report · Oct 2, 1990 · N10EK · Destroyed
  > The pilot's inadvertent deployment of the air brakes at a low altitude.
- [NTSB NYC90DHM26](https://openairdocs.org/ntsb/NYC90DHM26.md): Palen Sopwith Dolphin · Reinbeck, NY · Accident · No injuries · Final report · Sep 30, 1990 · N47166 · Substantial damage
  > Undetermined engine failure during low altitude operations.
- [NTSB CHI90LA274](https://openairdocs.org/ntsb/CHI90LA274.md): Burkhart Grob 109A · Waukesha, WI · Accident · Minor injuries · Limited investigation · Final report · Sep 26, 1990 · N912G · Substantial damage
  > The pilot's failure to maintain adequate clearance and visual lookout for the moving tractor.
- [NTSB ANC90LA135](https://openairdocs.org/ntsb/ANC90LA135.md): Aerospatiale SA-315B · Tok, AK · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N58000 · Substantial damage
  > Improper installation of the fuel filter element in the aircraft by company/maintenance personnel, and subsequent contamination of the fuel system by unfiltered fuel. Factors related to the accident were: inadequate design of the fuel filter assembly, which…

Next page: https://openairdocs.org/ntsb.md?engine=99999&page=32

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=99999&page=31

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