# 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 30 of 41 · 2,048 cases

## Cases, newest first

- [NTSB FTW95FA020](https://openairdocs.org/ntsb/FTW95FA020.md): Brantly Helicopter B-2 · Artesia, NM · Accident · 1 fatal · Field investigation · Final report · Oct 22, 1994 · N5905X · Destroyed
  > The pilot's impairment of judgment and performance due to drugs, and his failure to maintain clearance from a powerline.
- [NTSB SEA95LA007](https://openairdocs.org/ntsb/SEA95LA007.md): Bony MB-1 · Madras, OR · Accident · Minor injuries · Limited investigation · Final report · Oct 8, 1994 · N51MB · Destroyed
  > The jamming of the rudder during due to undetermined reasons. Contributing to the accident was the pilot-in-command's failure to maintain adequate flying speed while attempting to take remedial action.
- [NTSB SEA94LA244](https://openairdocs.org/ntsb/SEA94LA244.md): I.C.A. Brasov IS-28B2 · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Sep 10, 1994 · N28KG · Substantial damage
  > The student pilot's improper compensation for wind. The crosswind was a factor.
- [NTSB NYC94LA173](https://openairdocs.org/ntsb/NYC94LA173.md): Schleicher ASW15B · Dansville, NY · Accident · No injuries · Limited investigation · Final report · Sep 10, 1994 · N827 · Substantial damage
  > The pilot allowed the speed of the glider to get to low on final approach which resulted in a rapid descent, subsequent undershoot of the runway, and impact with a tree. A factor in this accident was a downdraft condition.
- [NTSB ANC94FA130](https://openairdocs.org/ntsb/ANC94FA130.md): Piper PA-18 · Gulkana, AK · Accident · 1 fatal · Field investigation · Final report · Sep 5, 1994 · N7867D · Substantial damage
  > The pilot's failure to maintain clearance from terrain.
- [NTSB LAX94LA337](https://openairdocs.org/ntsb/LAX94LA337.md): Balloon Works Firefly 8-24 · Sedona, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 1994 · N90299 · No damage
  > a tip over of the balloon and basket during a high wind landing due to the pilot's inability to compensate for the increased wind speed conditions during the final stages of the flight and landing.
- [NTSB CHI94LA279](https://openairdocs.org/ntsb/CHI94LA279.md): Hughes TH-55A · Houghton, MI · Accident · No injuries · Limited investigation · Final report · Aug 14, 1994 · N20SD · Substantial damage
  > failure of the pilot to maintain control of the aircraft.
- [NTSB LAX94LA293](https://openairdocs.org/ntsb/LAX94LA293.md): Burkhart Grob G103 · Tehachapi, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1994 · N38366 · Substantial damage
  > the pilot's failure to secure the canopy before takeoff, and his failure to maintain directional control during landing rollout.
- [NTSB CHI94LA238](https://openairdocs.org/ntsb/CHI94LA238.md): Piper PA-22 · Harvard, IL · Accident · No injuries · Limited investigation · Final report · Jul 15, 1994 · N8512C · Substantial damage
  > the pilot's excessive taxi speed. A factor in the accident was the wet grass runway.
- [NTSB LAX94LA273](https://openairdocs.org/ntsb/LAX94LA273.md): Adams Thorpe T-18 · Stockton, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 3, 1994 · N51079 · Substantial damage
  > A vapor lock induced engine failure due to inadequate thermal shielding of the fuel pump and lines. Soft terrain in the landing area was a factor.
- [NTSB CHI94LA198](https://openairdocs.org/ntsb/CHI94LA198.md): Beech 18 · Belleville, MI · Accident · No injuries · Limited investigation · Final report · Jun 13, 1994 · N231LJ · Substantial damage
  > the failure of the fuel line on the unique STC'd engine installation. A related factor is the improper installation of a fuel line by company maintenance personnel.
- [NTSB ATL94LA118](https://openairdocs.org/ntsb/ATL94LA118.md): Monnett Moni · Ashville, NC · Accident · 1 fatal · Limited investigation · Final report · Jun 10, 1994 · N112MX · Substantial damage
  > The failure of the pilot to maintain control of the aircraft. A factor in the accident was the thunderstorm off the departure end of the runway.
- [NTSB ATL94LA117](https://openairdocs.org/ntsb/ATL94LA117.md): Cessna 140 · Bainbridge, GA · Accident · Serious injuries · Limited investigation · Final report · Jun 10, 1994 · N89972 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB SEA94LA143](https://openairdocs.org/ntsb/SEA94LA143.md): Wray KR-2 · Puyallup, WA · Accident · No injuries · Limited investigation · Final report · May 28, 1994 · N786RW · Substantial damage
  > An improperly functioning fuel boost pump.
- [NTSB LAX94LA222](https://openairdocs.org/ntsb/LAX94LA222.md): Hillberg EH-101 · Corona, CA · Accident · No injuries · Limited investigation · Final report · May 21, 1994 · N10TE · Substantial damage
  > the pilot's loss of control of the helicopter while hovering downwind. A lack of test-flight data to establish the aircraft's performance limitations was a factor in the accident.
- [NTSB LAX94LA221](https://openairdocs.org/ntsb/LAX94LA221.md): Bell 206A · Ukiah, CA · Accident · Minor injuries · Limited investigation · Final report · May 20, 1994 · N206HS · Destroyed
  > the pilot's inadequate compensation for the existing wind conditions which resulted in a loss of tail rotor effectiveness event and a subsequent loss of directional control.
- [NTSB SEA94LA119](https://openairdocs.org/ntsb/SEA94LA119.md): Hallstrom BD-5B · St. George, UT · Accident · 1 fatal · Limited investigation · Final report · May 17, 1994 · N224FH · Destroyed
  > Carburetor contamination and low output, and the pilot's improper decision to attempt to continue the approach. A factor was the pilot's lack of recent flight experience.
- [NTSB CHI94LA145](https://openairdocs.org/ntsb/CHI94LA145.md): Piper PA-24-250 · Rochelle, IL · Accident · No injuries · Limited investigation · Final report · Apr 30, 1994 · N7605P · Substantial damage
  > the pilot's inadequate use of carburetor heat. Factors associated with the accident were carburetor icing conditions and rough terrain.
- [NTSB CHI94DEE01](https://openairdocs.org/ntsb/CHI94DEE01.md): Remote Sensing Cirrus VK-30 · Lk In The Hills, IL · Accident · 2 fatal · Final report · Apr 19, 1994 · N108P · Destroyed
  > fuel starvation resulting from the modification of the fuel system. A factor was the modification to the fuel system.
- [NTSB NYC94LA072](https://openairdocs.org/ntsb/NYC94LA072.md): Randolph Flagg Boredom Fighter · Norridgewock, ME · Accident · Serious injuries · Limited investigation · Final report · Mar 23, 1994 · N1932F · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CHI94IA095](https://openairdocs.org/ntsb/CHI94IA095.md): British Aerospace ATP · Mosinee, WI · Incident · Minor injuries · Incident investigation · Final report · Feb 26, 1994 · N854AW · Minor damage
  > the inadequate design of the PBSI electrical switch(es), and the operator's failure to expeditiously implement corrective Service Bulletins.
- [NTSB FTW94LA004](https://openairdocs.org/ntsb/FTW94LA004.md): Raven Rally RX7 · Albuquerque, NM · Accident · Minor injuries · Limited investigation · Final report · Oct 4, 1993 · N27953 · Substantial damage
  > Pilot's failure to maintain aircraft control. A factor was the gusty winds.
- [NTSB LAX93LA370](https://openairdocs.org/ntsb/LAX93LA370.md): Beech A-36 · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Sep 25, 1993 · N7246Z · Substantial damage
  > the CFI's inadequate supervision of the flight and his delay in taking remedial action; the dual student's premature liftoff and improper use of the flight controls. The high vegetation and soft terrain were factors in this accident.
- [NTSB FTW93LA263](https://openairdocs.org/ntsb/FTW93LA263.md): Wsk Pzl Mielec M-18A Dromader · Frogmore, LA · Accident · 1 fatal · Limited investigation · Final report · Sep 23, 1993 · N452TC · Destroyed
  > The pilot's failure to maintain clearance with the powerline. A factor was the dusk light condition.
- [NTSB MIA93LA196](https://openairdocs.org/ntsb/MIA93LA196.md): Sukhoi SU-26M · Natchez, MS · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 1993 · N26CY · Substantial damage
  > The pilot-in-command's failure to accurately calculate fuel consumption resulting in total loss of engine power due to fuel exhaustion while approaching the destination airport.
- [NTSB ANC93IA176](https://openairdocs.org/ntsb/ANC93IA176.md): Sikorsky C54A · Anita Bay, AK · Incident · No injuries · Incident investigation · Final report · Sep 12, 1993 · N44094 · Minor damage
  > The separation of the turbine blade from the power turbine disc.
- [NTSB MIA93LA185](https://openairdocs.org/ntsb/MIA93LA185.md): Keuthan Buccaneer II · Cocoa, FL · Accident · Serious injuries · Limited investigation · Final report · Aug 27, 1993 · N693KA · Substantial damage
  > Failure of maintenance personnel to properly reinstall a bolt and nut in the elevator control linkage, which resulted in a disconnect of the linkage and loss of elevator control.
- [NTSB SEA93LA202](https://openairdocs.org/ntsb/SEA93LA202.md): Kope Zenith CH200 · Waterville, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 1993 · N456K · Substantial damage
  > A short in the electrical wiring to the fuel pump.
- [NTSB CHI93DEC01](https://openairdocs.org/ntsb/CHI93DEC01.md): Bradford Pietenpol Skyscout · Eaton Rapids, MI · Accident · Minor injuries · Final report · Aug 21, 1993 · N4301D · Substantial damage
  > the pilot's failure to maintain airspeed which resulted in an inadvertant stall. Factors related to the accident were the low altitude and the restricted movement of the carburetor needle.
- [NTSB FTW93LA241](https://openairdocs.org/ntsb/FTW93LA241.md): Cessna 140 · Bastrop, LA · Accident · No injuries · Limited investigation · Final report · Aug 16, 1993 · N2673N · Substantial damage
  > The pilot's failure to maintain directional control and his improper compensation for existing wind conditions. Factors were the crosswind and the pilot's lack of total experience in the type of aircraft.
- [NTSB SEA93LA174](https://openairdocs.org/ntsb/SEA93LA174.md): Brauch Glasair · Blanding, UT · Accident · 2 fatal · Limited investigation · Final report · Aug 7, 1993 · N365WB · Destroyed
  > The loss of engine power resulting from inadequate maintenance inspection by the pilot, a leak from loose fuel system line fittings, and fuel exhaustion. A factor relating to the accident was the rough/uneven terrain.
- [NTSB CHI93LA295](https://openairdocs.org/ntsb/CHI93LA295.md): Gardner SEA RAY · Oshkosh, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1993 · N703SR · Substantial damage
  > The pilot in command's not maintaining proper climb rate. A factor was the abrupt control interference by the passenger.
- [NTSB DEN93LA086](https://openairdocs.org/ntsb/DEN93LA086.md): Balloon Works 7B-15 · Colorado Sprgs, CO · Accident · Serious injuries · Limited investigation · Final report · Jul 24, 1993 · N9067Y · No damage
  > The passenger's failure to assume the proper landing position as instructed by the pilot in command. A factor was: the high wind.
- [NTSB SEA93LA150](https://openairdocs.org/ntsb/SEA93LA150.md): Hoopes Hummelbird · Salt Lake City, UT · Accident · No injuries · Limited investigation · Final report · Jul 8, 1993 · N2227S · Substantial damage
  > A fractured crankshaft.
- [NTSB DEN93FA075](https://openairdocs.org/ntsb/DEN93FA075.md): Wiley Pitts S-1-E · Walters, OK · Accident · 1 fatal · Field investigation · Final report · Jul 8, 1993 · N70BW · Destroyed
  > Performance of an aerobatic maneuver at an altitude insufficient for adequate terrain clearance.
- [NTSB NYC93LA119](https://openairdocs.org/ntsb/NYC93LA119.md): Start & Flug H-101 Salto · Columbus, OH · Accident · No injuries · Limited investigation · Final report · Jun 18, 1993 · N101AZ · Substantial damage
  > The pilot's selection of unsuitable terrain for landing. A factor related to the accident was the interruption of the glider pilot's planned approach by a powered airplane.
- [NTSB FTW93LA188](https://openairdocs.org/ntsb/FTW93LA188.md): Reims Cessna FA 150K · Willis, TX · Accident · No injuries · Limited investigation · Final report · Jun 13, 1993 · N922SZ · Substantial damage
  > Loss of partial engine power due to stuck exhaust valve and exhaust and intake valve binding with carbon buildup. A factor was the lack of suitable terrain
- [NTSB MIA93LA142](https://openairdocs.org/ntsb/MIA93LA142.md): Sayer, Trevor A. Rans S-12 · New Smyrna Bch, FL · Accident · No injuries · Limited investigation · Final report · Jun 12, 1993 · N162JT · Substantial damage
  > Failure of the pilot to maintain adequate airspeed and inadvertent stall/spin. Contributing to the accident was total loss of engine power due to fuel starvation. This was due to improper placement of a component of the fuel system by the builder/pilot.
- [NTSB DEN93LA065](https://openairdocs.org/ntsb/DEN93LA065.md): Cessna 182A · Stratton, CO · Accident · No injuries · Limited investigation · Final report · Jun 3, 1993 · N2131G · Substantial damage
  > The selection of unsuitable terrain for a precautionary landing by the pilot in command. A factor was: misjudging the deteriorating weather.
- [NTSB CHI93LA186](https://openairdocs.org/ntsb/CHI93LA186.md): Ercoupe 415C · Derby, KS · Accident · Minor injuries · Limited investigation · Final report · May 31, 1993 · N37139 · Substantial damage
  > The pilot in command's misjudged approach to landing.
- [NTSB LAX93LA228](https://openairdocs.org/ntsb/LAX93LA228.md): WSK PZL KR-03A · Avenal, CA · Accident · No injuries · Limited investigation · Final report · May 26, 1993 · N6644A · Substantial damage
  > The glider's encounter with the downdraft. Contributing to this accidents were the turbulence and the powerlines.
- [NTSB SEA93LA116](https://openairdocs.org/ntsb/SEA93LA116.md): Rambow Monnett Moni · Ritzville, WA · Accident · Serious injuries · Limited investigation · Final report · May 21, 1993 · N106NR · Substantial damage
  > The improper landing flare.
- [NTSB FTW93LA146](https://openairdocs.org/ntsb/FTW93LA146.md): Pzl-Mielec PZL-M-18 · De Witt, AR · Accident · Minor injuries · Limited investigation · Final report · May 1, 1993 · N28587 · Destroyed
  > Compensation for wind improper by pilot. Factors were tailwind and downdraft
- [NTSB FTW93LA124](https://openairdocs.org/ntsb/FTW93LA124.md): Violet Dragonfly · Carlsbad, NM · Accident · No injuries · Limited investigation · Final report · Apr 11, 1993 · N48RV · Substantial damage
  > The improper installation of the control stick assembly and the subsequent separation of the flight control stick assembly from the mount
- [NTSB MIA93LA088](https://openairdocs.org/ntsb/MIA93LA088.md): Christen Industries Pitts S1-T · Naples, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 21, 1993 · N218MC · Substantial damage
  > The installation of an improper designed intake tube and air filter by the nonmechanic rated pilot-in-command, which resulted in moisture build up and collapse of the air filter, which resulted in blockage of air flow to the engine and loss of engine power.…
- [NTSB LAX93LA148](https://openairdocs.org/ntsb/LAX93LA148.md): Langerud Varieze · Zenia, CA · Accident · 1 fatal · Limited investigation · Final report · Mar 2, 1993 · N91CL · Destroyed
  > The pilot's poor weather evaluation and continued flight into instrument meteorological conditions. The low ceiling was a factor.
- [NTSB LAX93LA135](https://openairdocs.org/ntsb/LAX93LA135.md): Downer Aircraft Industries KR-1 · Prescott, AZ · Accident · Serious injuries · Limited investigation · Final report · Feb 23, 1993 · N9HD · Destroyed
  > The total loss of engine power for undetermined reasons. A factor in the accident was the lack of a suitable landing area at the time of the power interruption.
- [NTSB LAX93LA124](https://openairdocs.org/ntsb/LAX93LA124.md): Bertone Challenger II · Boulder City, NV · Accident · 1 fatal · Limited investigation · Final report · Feb 18, 1993 · N4391V · Destroyed
  > The pilot's loss of airplane control due to physical impairment as a result of either drugs or other cardiovascular reasons, or both.
- [NTSB LAX93LA076](https://openairdocs.org/ntsb/LAX93LA076.md): Curtiss JN-4D · Livermore, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 26, 1992 · N5001 · Substantial damage
  > The shearing of the number 8 cylinder rocker arm support pedestal/coolant housing retaining bolts. Contributing to the accident was a loss of engine coolant.
- [NTSB NYC93LA047](https://openairdocs.org/ntsb/NYC93LA047.md): Beech C-24R · Meriden, CT · Accident · No injuries · Limited investigation · Final report · Dec 19, 1992 · N1848A · Substantial damage
  > The pilot's improper airplane preflight, resulting in no airspeed indication during takeoff, and the subsequent abort with insufficient runway available to stop prior to a collision with the terrain.

Next page: https://openairdocs.org/ntsb.md?engine=99999&page=31

## 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=30

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