OpenAirDocs.org

NTSB investigations: Lycoming VO-435 series, 1987

10 cases on aircraft whose registry engine model is Lycoming VO-435 series. 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

19642026

Where

Open the map

Latest 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 ('41525'))
  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.

NTSB SEA88LA014Accident · No injuriesLimited investigationFinal reportBell 47G2 · Lebanon, ORThe student was performing an autorotation at about 50' AGL and the flare was begun. The instructor pilot noticed that the helicopter was not leveling and took control of the aircraft. The helicopter settled tail low onto the soft ground striking the tail…Oct 26, 1987 · N6141 · Substantial damageNTSB FTW88LA008Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Lapra, TXUpon entering a bank approx. 80 to 100 ft. off the ground, the aircraft experienced a power loss with vibration. During autorotation the aircraft contacted a tree causing substantial damage. Examination of the wreckage found the transmission clutch assembly…Oct 20, 1987 · N8403E · Substantial damageNTSB FTW87DPJ09Accident · Serious injuriesFinal reportG&C Helicopters EL Tomcat MK5A · Marlow, OKPilot failed to see and avoid tree at end of swath run during a spraying operation. After contacting the tree, the helicopter started to spin and struck the ground in an approximate 90 degree right bank and started to burn.Sep 23, 1987 · N17315 · Substantial damageNTSB ATL87LA249Accident · No injuriesLimited investigationFinal reportBell 47G3B1 · Enterprise, ALDuring a practice autorotation, the instructor pilot delayed in appling power to arrest the autorotative descent. The other pilot reported that the autorotation profile was was not the same as the previous successful autorotation. There were no reported…Sep 6, 1987 · N38CD · Substantial damageNTSB MIA87FA236Accident · 1 fatalField investigationFinal reportCessna 152 · Opa Locka, FLA student plt & instructor (CFI) in Cessna 152, N48864, took off & entered rgt traffic to practice lndgs on rwy 9R. Soonthereafter, a helicopter plt (h/p) in a bell 47G-2, N6728D, took off & entered rgt traffic to practice lndgs in a desig-nated helicopter…Aug 31, 1987 · N48864 · 2 aircraft · Substantial damageNTSB ATL87LA222Accident · Minor injuriesLimited investigationFinal reportBell 47G-2 · Huntsville, ALThe helicopter impacted the water during a low-altitude turn over a river. The plt made a low pass to the south over an island at about 30 ft AGL, to show the island to the policewoman/traffic observer onboard. As he was making a climbing right turn at about…Jul 23, 1987 · N972B · Substantial damageNTSB LAX87DVM03Accident · No injuriesFinal reportBell 47G-5 · Salinas, CAAt the end of an aerial application operation, enroute to the airport, the engine quit. The pilot autorotated the helicopter onto a soft field, where on touchdown, the helicopter was substantially damaged. Inspection of the helicopter revealed that the fuel…Jun 28, 1987 · N6288N · Substantial damageNTSB CHI87DEV02Accident · No injuriesFinal reportBell 47G2 · Peoria Heights, ILReturning from a powerline patrol flight, the engine surged twice and quit. The pilot executed an autorotation to the only available landing site, a high school football field. On touchdown the blades flexed and severed the tailboom. Investigation revealed…Jun 22, 1987 · N15395 · Substantial damageNTSB MIA87LA145Accident · No injuriesLimited investigationFinal reportBell 47G-2 · Rolling Fork, MSWhile landing downwind, at an alt of aprx 20 feet, the helicopter began to settle with power. The pilot then attempted to stop the descent, however, because of insufficient alt & airspeed, was unable. The helicopter then landed hard, rolled over, after which,…Apr 25, 1987 · N202CH · Substantial damageNTSB ANC87FA043Accident · No injuriesField investigationFinal reportBell 47G-2 · Anchorage, AKA flight instructor and his commercial rotorcraft student were practicing quick stops to a hover at low altitude over a snow covered non-maintained airstrip. The student, a commercially rated fixed wing pilot, had successfully completed three quick stops, but…Mar 7, 1987 · N6140C · Substantial damage