NTSB investigations: Amateur-built UNKNOWN ENG, 1987
31 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\") = 1987
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") = 1987
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 MIA88LA076Accident · Minor injuriesLimited investigationFinal reportCrusenberry Windwagon · Lantana, FLWhile on a high speed taxi test the acft inadvertently became airborne. While looking out the rt side of the acft the plt rolled it into a rt bank. He then leveled the wings after which the acft stalled, touched down and separated the main landing gear wheels…NTSB ATL88LA038Accident · No injuriesLimited investigationFinal reportCessna 172A · Dayton, OHThe plt rptd that the engine began to sputter and lose power shortly after takeoff. A forced ldg was subsequently made in a nearby river. The acft nosed over on ldg and came to rest partially submerged in about 4 feet of water. Post-crash exam of the airplane…NTSB LAX88DUM01Accident · Serious injuriesFinal reportDurbin Monnett Moni · Ramona, CAAcquaintances of the plt rprtd he had performed maintenance to repair an inoperative airspeed indicator. He then took off on a test flt. A witness, who was a plt, rprtd the eng started to 'cut out' at about 200 to 300 ft AGL, the tail 'waggled a couple of…NTSB SEA87LA196Accident · No injuriesLimited investigationFinal reportCessna 150F · Mount Vernon, WAThe aircraft's engine ceased operating due to fuel exhaustion about five miles short of the destination airport. A field was selected for the landing site. During the landing roll, the aircraft nosed over on freshly plowed terrain.NTSB LAX87DUG09Accident · No injuriesFinal reportGeiger Dragonfly · Chino, CAAt the end of a performance test flight, the plt stated that the acft was rotated to a landing attitude at a higher then normal altitude above the ground. The acft contacted the rwy and bounced three times, resulting in substantial damage.NTSB DEN87LA236Accident · No injuriesLimited investigationFinal reportLet L-13 · Buena Vista, COThe plt was ferrying the glider to Buena Vista, Colorado & had previously obtained permission to land on a closed rwy. After being towed to the Buena Vista area, he released the glider from the tow plane & flew in the local area for about 40 min. He then…NTSB MIA87FA234Accident · Serious injuriesField investigationFinal reportPiper PA-38-112 · Vero Beach, FLThe student plt was on an aprx 380 mi solo x-country flt fm Vero Beach (vrb) to naples (apf), brooksville (bkv) & back to vrb. He thought he had plenty of fuel for the flt & elected to dep w/o taking a credit card (for fuel). When he lndd at apf & bkv, he did…NTSB NYC87LA238Accident · Serious injuriesLimited investigationFinal reportBoeing B-17G · Beaver Falls, PADrg an apch in gusty winds, the plt noted a rgt x-wind. He stated that after touchdown, the roll-out was stabilized for a short distance, then the rgt wing began to lift. He applied full aileron & rudder to maint control, but was unable to stop on the…NTSB NYC87DHJ02Accident · 2 fatalFinal reportReder KR-2 · Mattituck, NYWitnesses observed the experimental homebuilt acft in a steep nose down attitude descent with its prop rotating. No witnesses were located who saw the acft prior to the descent, however, pilots in the area reported that winds were turbulent and gusty. The…NTSB LAX87DUG06Accident · Minor injuriesFinal reportCurtiss JN-4 · Riverside, CADuring a business flight, the engine experienced a loss of engine power. The pilot made a forced landing in an open area where during the touchdown, the aircraft was substantially damaged. The plt stalled the acft while still several ft off the ground. The…NTSB BFO87LA060Accident · Minor injuriesLimited investigationFinal reportFleet 16B · Spencer, WVShortly after takeoff on runway 16, the engine began misfiring. The pilot turned back toward the airport to make a landing. He circled the airport and then attemped to land on runway 34. The pilot stated he was over the approach end ofrunway 34, turning left…NTSB MIA87IA204Incident · No injuriesIncident investigationFinal reportBoeing 727-225 · Washington, DCDrg arr, the acft's radar showed tstms in the area of the arpt. As the flt contd, ATIS info chgd. When the plts ctcd Washington apch ctl with old ATIS info, the ctlr did not correct the flt. They were adzd of hvy rain, strong wnds & a PIREP of wndshr nr the…NTSB ATL87DLT03Accident · 1 fatalFinal reportBurkhart Grob G102-111B · Memphis, TNGlider tow rope released at about 200FT following t/o. glider made rt turn followed by stall/spiral which continued until ground impact. Tow pilot saw glider pilot's hat falling to ground just after tow rope was released by glider pilot. Glider canopy was…NTSB ATL87LA207Accident · Serious injuriesLimited investigationFinal reportAerostar RX-7 · Crestwood, KYThe balloon contacted power lines as it was beginning to climb after an aborted ldg attempt. Electrical arcing ignited the propane fuel supply on board. The sole-occupant student plt jumped from the burning balloon and fell approx 40 ft onto a fence. The…NTSB ATL87LA199Accident · No injuriesLimited investigationFinal reportBurkhart Grob G-103A · Mt. Airy, NCThe instructor stated this was the second flight of the day with the student. They had released from an air tow at 1,500 feet AGL. The instructor was demonstrating glide slope control for best final glide. When the sailplane was about 1,000 feet AGL and one…NTSB ATL87DEI06Accident · 2 fatalFinal reportSteen Skybolt · Wadsworth, OHThe accident occurred when the pilot was practicing aerobatics. The investigation disclosed that linkage control rods between the pilot's stick and the pitch elevator was broken. The evidence indicated that the failure was caused by a combination of…NTSB LAX87LA243Accident · No injuriesLimited investigationFinal reportBoeing 737-277 · Los Angeles, CAFailure of the qualified mechanic to insure the operation of the aircraft brakes prior to taxiing and his failure to utilize the emergency brake system to prevent the collision. Contributing to this accident was the decision of airline maintence supervisors…NTSB LAX87LA244Accident · No injuriesLimited investigationFinal reportNord 3202 · Bishop, CADuring a relocation flight of a newly purchased acft, the plt was making a cross wind landing when on touchdown the left wing raised. The plt corrected by applying left aileron, however, he also relaxed the back pressure on the control stick allowing the tail…NTSB CHI87IA163Incident · No injuriesIncident investigationFinal reportBoeing 757-251 · Detroit, MIA northwest airlines Boeing 757, operating as flight 336, scraped the tail cone area of the fuselage on the runway when the pilot failed to maintain sufficient ground clearance during rotation and takeoff from Detroit, Michigan. The Boeing 757 flight…NTSB MIA87LA164Accident · 1 fatalLimited investigationFinal reportCessna 402C · Missing Acft, BahamasOn 5/27/87 at about 0915 EDT, the plt departed palm beach intl arpt (pbi) on a flt to marsh harbour, great abaco island, Bahamas. When the Acft did not arrive at the destination, a search was initiated. The Acft was not fnd & was presumed to have been…NTSB DEN87LA124Accident · No injuriesLimited investigationFinal reportBrantly Helicopter 305 · Golden, COThe commercial plt was performing hover tests in his experimental helicopter at his private helipad, located 60 feet from his residence. The plt reported winds as variable gusting to 40 knots. The plt's attention was diverted and a wind gust pushed the…NTSB ANC87LA069Accident · No injuriesLimited investigationFinal reportFairchild C-119L · Shageluk, AKThe airplane was destabilized by a slight vertical air movement on approach. The pilot touched the airplane down short of the runway proper, collapsing the landing gear before sliding off the strip into adjacent tundra.NTSB LAX87DVA06Accident · 1 fatalFinal reportNorth American F-86F · Shafter, CAFollowing an airshow, the pilot transmitted while on final approach to the runway, that the engine had seized. The aircraft was landed with the landing gear retracted. During the flare the aircraft became uncontrollable, bounced several times on the runway,…NTSB LAX87DUG03Accident · Serious injuriesFinal reportFrimelt Werner Moni 164 · Lake Riverside, CAJust after take off of a homebuilt, experimental acft, a witness observed the acft at aprx 150 ft AGL initiate a 15 deg turn to the right. Immediately thereafter the acft pitched down slightly and began to lose altitude, then abruptly entered a spin and…NTSB FTW87DRA02Accident · No injuriesFinal reportHunter Executive · Arcola, TXThe acft was being test flown following the replacement of a tail rotor drive belt. Following a ground run up and ground taxi, several hovering flts were made successfully. As the non-helicopter rated plt was hovering back to the parking area, he heard the…NTSB DEN87LA104Accident · No injuriesLimited investigationFinal reportDevore Sunbird 100 · Albuquerque, NMAn experimental designed prototype acft was being flown on its first flt. The acft took off and flew in ground effect beyond the arpt boundary. At full pwr, the acft could not maintain altitude and descended uncontrolled to an impact with the terrain. The…NTSB DEN87LA097Accident · Minor injuriesLimited investigationFinal reportMclachlan Moni · Tooele, UTThe private plt was cruising the local area near his home in his homebuilt experimental moni. The newly installed engine began to run rough. This engine is not a traditional acft engine and was a two cycle, two cylinder engine manufactured in italy, with an…NTSB LAX87DUJ04Accident · 1 fatalFinal reportBenson B-8M · Fountain Hills, AZWitnesses stated that the homebuilt gyrocopter entered a steep climb and appeared to roll completely over. Halfway through the engine backfired and then quit. The aircraft went into a steep dive. The aircraft impacted the terrain near vertically.NTSB MIA87FA118Accident · 1 fatalField investigationFinal reportAero Mirage TC-2 · Williston, FLWitnesses stated that the acft made a 'fly by' at 300 ft to check and see if the gear was down. The ground personnel informed the plt that the gear appeared to be down. They stated that the acft then made a sharp left turn paralleling runway 14, they lost…NTSB NYC87FA114Accident · 2 fatalField investigationFinal reportBell 47G · Wassaic, NYThe Bell 47G helicopter was on a aerial survey of buried telephone cable when the red main rotor blade separated from the blade grips in flight. The main rotor hub with the main rotor blade separated from the transmission and the helicopter crashed. No…NTSB MKC87IA043Incident · No injuriesIncident investigationFinal reportEmbraer EMB-120 · Springfield, MOThe PIC of this air midwest flt 4408 said that, while on initial climb, power (np) on the left engine decayed to 60% and would not recover. The engine was feathered by condition lever but the torque rose to 140% while returning for a landing, according to the…