NTSB investigations: Amateur-built UNKNOWN ENG, 1986
27 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG. 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 | 12 |
| 1966 | 20 |
| 1967 | 16 |
| 1968 | 7 |
| 1969 | 11 |
| 1970 | 14 |
| 1971 | 16 |
| 1972 | 10 |
| 1973 | 12 |
| 1974 | 17 |
| 1975 | 13 |
| 1976 | 20 |
| 1977 | 19 |
| 1978 | 25 |
| 1979 | 18 |
| 1980 | 20 |
| 1981 | 19 |
| 1982 | 29 |
| 1983 | 21 |
| 1984 | 26 |
| 1985 | 22 |
| 1986 | 27 |
| 1987 | 31 |
| 1988 | 29 |
| 1989 | 15 |
| 1990 | 28 |
| 1991 | 20 |
| 1992 | 22 |
| 1993 | 27 |
| 1994 | 26 |
| 1995 | 31 |
| 1996 | 30 |
| 1997 | 22 |
| 1998 | 30 |
| 1999 | 34 |
| 2000 | 49 |
| 2001 | 45 |
| 2002 | 64 |
| 2003 | 67 |
| 2004 | 58 |
| 2005 | 70 |
| 2006 | 59 |
| 2007 | 74 |
| 2008 | 63 |
| 2009 | 62 |
| 2010 | 62 |
| 2011 | 44 |
| 2012 | 58 |
| 2013 | 43 |
| 2014 | 46 |
| 2015 | 40 |
| 2016 | 39 |
| 2017 | 43 |
| 2018 | 34 |
| 2019 | 40 |
| 2020 | 28 |
| 2021 | 36 |
| 2022 | 41 |
| 2023 | 41 |
| 2024 | 34 |
| 2025 | 32 |
| 2026 | 25 |
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 year(c.\"eventDate\") = 1986
AND 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"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 year(c."eventDate") = 1986
AND 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" 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 CHI87LA045Accident · No injuriesLimited investigationFinal reportHiller UH-12B · Capac, MITen minutes after takeoff and just prior to letdown from 350 feet AGL a main rotor blade drag strut failed due to progressive fatigue through a threaded portion of the strut. Only partial control of the helicopter was possible after the failure. The pilot…NTSB CHI87LA032Accident · No injuriesLimited investigationFinal reportBurkhart Grob 109B · Gregory, MIWhile landing, the aircraft bounced twice, so the pilot decided to go around and make a second attempt. On climb out, the landing gear struck 65 ft tall trees at the end of the runway. The aircraft then stalled and collided with the terrain. Reportedly, the…NTSB CHI87IA026Incident · No injuriesIncident investigationFinal reportBoeing 757-251 · Washington, DCDrg an en route climb, aileron control (ctl) bcm progressively more stiff. At cruise alt, the autoplt disengaged & the ailerons would not move. Aileron ctl was restored after a dscnt below the freezing level. The acft was flown below the freezing lvl for the…NTSB ATL86FA266Accident · 1 fatalField investigationFinal reportPiper TG8-J3C-65 · Apex, NCThe plt was practicing takeoffs and landings in his newly acquired J3 at a private airstrip when the eng sputtered and then quit. The plt lost control of the acft and hit a 't' hanger prior to hitting the ground. The acft caught fire and was destroyed,…NTSB NYC86FNC09Accident · Minor injuriesFinal reportCessna 205 · Twin Mountain, NHDuring a 'bomb drop' contest at an organized 'fly-in', the pilot was maneuvering at low airspeed so his passenger could drop a water-filled balloon on a target which had been placed on runway 27. The acft suddenly banked to the right and pitched down striking…NTSB FTW86FRD25Accident · 1 fatalFinal reportWSK PZL Mielec PZL-M18 · Mer Rouge, LAThe pilot pulled up steeply at the end of a spray run and started a turn-around. During this time he allowed the airspeed to bleed off to the point at which the aircraft stalled and entered a spin without sufficient altitude to recover before ground impact…NTSB ANC86LA164Accident · No injuriesLimited investigationFinal reportCessna 195A · Willow, AKThe pilot reported that while demonstrating high speed taxi, the airplane veered to the left, entered an open trench, and was damaged. An exam of the flight control and brake systems revealed no pre-accident mechanical malfunction or failure.NTSB CHI86LA219Accident · Minor injuriesLimited investigationFinal reportHughes 500 (369HS) · West Lafayette, INThe helicopter was at a low altitude hover video taping an athletic event when the aft flex coupling on the tail rotor failed. The plt was unable to regain control and during descent the main rotor blades struck the roof of a residence. The helicopter then…NTSB MKC86FCD03Accident · Serious injuriesFinal reportRoger Warnell KR-1 · Waterloo, IAThe pilot reported that he had carburetor problems. The engine quit and the pilot made a forced landing about one mile from airport. This was the pilots first flight in this aircraft.NTSB LAX86FVD09Accident · No injuriesFinal reportJaks Volksplane VP-2 · Ukiah, CAAt the end of a local flight, during the landing roll, the plt was distracted and allowed the acft to veer to the right side of the rwy. The plt applied the brakes when the left main landing gear collapsed.NTSB LAX86FA307Accident · 1 fatalField investigationFinal reportCherry HP16 · Llano, CAThe glider pilot departed on a local flight and the wreckage of his glider was spotted a little over an hour later. There were no known witnesses to the accident which occurred in VFR daylight conditions.NTSB MKC86LA157Accident · No injuriesLimited investigationFinal reportRandolph R.Clark KR-2 · Russell, KSThe pilot had just completed some adjustments to the carburetor and was making a high-speed taxi test when he became airborne. He applied more power to avoid stalling and immediately thereafter, the engine started running rough. He then decided to make a…NTSB NYC86DNC06Accident · Minor injuriesFinal reportHansen Hawk 304 · Wolfeboro, NHThe experimental aircraft equipped with a buick V-8 aluminum block engine experienced power loss on approach for landing. The pilot decided that the distance and terrain was too great for a glide to the airport, and an emergency water landing in a nearby lake…NTSB NYC86LA160Accident · No injuriesLimited investigationFinal reportHiller 12C · Lehighton, PAThe pilot of the Hiller 12C reported an overheated engine followed by an engine failure. During the forced landing the main rotor flexed and cut the tail boom off the the aircraft. The aircraft was examined. 10 oz. Of a liquid was found in the fuel system. 7…NTSB SEA86LA152Accident · No injuriesLimited investigationFinal reportRockwell S2R · Caldwell, IDShortly after departure the pilot could not get any aileron response. A landing was attempted at a nearby airport where a go around became necessary. During the go around control of the aircraft was lost and it descended to ground impact. Investigation…NTSB NYC86FNA01Accident · No injuriesFinal reportSteen Skybolt UNK · Beverly, MAThe Steen Skybolt modified with a turbo-prop conversion experienced a power loss on takeoff after achieving an altitude of 200-300 ft AGL and made a hard landing on the runway remaining. The landing gear collapsed and aircraft received substantial damage. The…NTSB ATL86LA179Accident · Serious injuriesLimited investigationFinal reportAndrew D. Moore HP-18 · Chester, SCThe pilot related that while turning from base to final he heard a loud bang from the left side of the aircraft. The aircraft entered a steep left turn and crashed left of final approach course. Post crash examination of the aircraft revealed that the flap…NTSB FTW86LA113Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Palacios, TXDuring the ground run portion of the takeoff, the acft contacted a mud hole which resulted in it veering off the grass and into bushes alongside the strip. The plt did not select suitable terrain for the takeoff.NTSB ATL86LA165Accident · No injuriesLimited investigationFinal reportCessna 172M · Cobb, GAThe plt reported a rough running eng. He attempted a precautionary ldg during which the acft's nose wheel dug in the soft ground and the acft nosed over. Post accident inspection of the eng failed to disclose any failures/malfunction.NTSB MIA86LA168Accident · Minor injuriesLimited investigationFinal reportBell 47-D1 · Panama City Bch, FLThe pilot had intended to hover the helicopter and allow a 'clown' to touch the skids while a photographer recorded the event looking upward to give the appearance that the 'clown' was hanging from the skid. The 'clown' grabbed the left rear skid and the…NTSB MIA86FA126Accident · Serious injuriesField investigationFinal reportBlythe Quickie · Eustis, FLThe student pilot departed on a student cross-country flight with 2 gallons of fuel in the tank of the homebuilt quickie. About 30 to 45 minutes later the engine failed at 1800 ft MSL. The student attempted to stretch the glide to a road and struck trees and…NTSB MKC86FA083Accident · 1 fatalField investigationFinal reportGlasair 2 · Cheney, KSThe acft approached Cheney lake, west of wichita, Kansas at low altitude from the southeast. Several witnesses fishing from the bank saw the acft pass near the Cheney lake marina heading toward the lake. The acft then entered a spin and crashed into the lake…NTSB MIA86FA115Accident · 1 fatalField investigationFinal reportPitts Special · Homestead, FLThe plt was on a flt to practice aerobatic mnvrs in a designated practice area. A witness, who was driving nearby, stated that he saw the acft 'falling straight down' & crash in a tomato field. An investigation revealed evidence that the acft had impacted in…NTSB CHI86IA115Incident · No injuriesIncident investigationFinal reportBoeing 757-251 · Minneapolis, MNN508US was operating as nwa flt 150. The captain stated after the incident that the flt was uneventful until landing. Upon landing and spoiler deployment, the acft pitched up abruptly, to an attitude of 10 degrees. The landing was completed without incident.…NTSB CHI86FER02Accident · Minor injuriesFinal reportMonnett Moni · Winona, MNThe acft crash landed off the arpt due to a reported loss of power. The plt landed in a small field surrounded by hills. The acft sink rate during the landing was high and the acft was damaged. Inspection of the eng after the acc was not accomplished due to…NTSB DEN86FTI01Accident · Minor injuriesFinal reportMiller Sievers Special · Gillette, WYOn March 3, 1986 at approximately 1715 MST, an experimental Miller, sievers special, struck the ground during takeoff at the Gillette-campbell county airport, Gillette, Wyoming. The pilot stated that just after takeoff on runway 34, the aircraft appeared to…NTSB FTW86LQG07Accident · Serious injuriesFinal reportRaven Rally RX-7 · Lockney, TXThe student pilot stated that he did not checked the wind forecast when he called for a weather briefing about four hours before the accident. The surface winds increased to 30 gusting 40 KTS while he was airborne. He reported that when he landed, he was not…