# NTSB investigations: Lycoming VO-540 series, FL 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. ## Latest cases - [NTSB ERA26LA331](https://openairdocs.org/ntsb/ERA26LA331.md): Bell 47G-4A · Alcoma, FL · Accident · No injuries · Class 3 · Limited · Preliminary report · Sep 6, 2026 · N797WS · Substantial damage > On September 5, 2026, at 1422 eastern daylight time, a Bell 47G-4A, N797WS, was substantially damaged when it was involved in an accident near Alcoma, Florida. The pilot was not injured. The helicopter was operated as a Title 14 Code of Federal Regulations… - [NTSB ATL02LA044](https://openairdocs.org/ntsb/ATL02LA044.md): Hiller UH12E · Miami, FL · Accident · Minor injuries · Limited investigation · Final report · Feb 11, 2002 · N103HA · Substantial damage > Fatigue cracking in the main rotor hub that resulted in the separation of the main rotor system. A factor was corrosive deposits on the exposed portion of the plate set pin. - [NTSB ATL96LA104](https://openairdocs.org/ntsb/ATL96LA104.md): Hiller UH-12E · Cottondale, FL · Accident · No injuries · Limited investigation · Final report · Jul 11, 1996 · N102HT · Substantial damage > failure of the main rotor drive torsional coupling and inner gimbal ring, which resulted in jamming of the flight controls during an attempted autorotation. - [NTSB MIA94LA216](https://openairdocs.org/ntsb/MIA94LA216.md): Bell 47G-2A · Moore Haven, FL · Accident · No injuries · Limited investigation · Final report · Sep 23, 1994 · N30JJ · Destroyed > The pilot-in-command's failure to maintain a visual lookout while maneuvering on a swath run, resulting in an in-flight collision with wires, and subsequent in-flight collision with terrain. - [NTSB MIA94LA029](https://openairdocs.org/ntsb/MIA94LA029.md): Hiller UH-12E · Moore Haven, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 26, 1993 · N130HA · Substantial damage > Failure of the pilot-in-command to maintain aircraft control following loss of engine power for undetermined reasons. - [NTSB MIA88LA225](https://openairdocs.org/ntsb/MIA88LA225.md): Hiller UH-12E · Clewiston, FL · Accident · No injuries · Limited investigation · Final report · Jul 18, 1988 · N108HA · Substantial damage > The plt stated the fuel gages indicated 20 gals when he took off on spraying flt. He had just completed the spray run & started to pull up from about 10 ft & 25 mph. At that time the eng quit '& sounded just like it would if it ran out of gas'. There was not… - [NTSB MIA88LA183](https://openairdocs.org/ntsb/MIA88LA183.md): Hiller UH-12E · Gretna, FL · Accident · No injuries · Limited investigation · Final report · Jun 1, 1988 · N4029R · Substantial damage > While on an aerial application flt, the plt stated he maneuvered the helicopter to release the remaining chemical. He then heard a loud 'screeching' noise followed by silence as the eng quit. The helicopter landed hard breaking the skids. It came to rest on… - [NTSB MIA88LA018](https://openairdocs.org/ntsb/MIA88LA018.md): Bell 47J-2 · Key Colony Bch., FL · Accident · No injuries · Limited investigation · Final report · Oct 24, 1987 · N73201 · Substantial damage > The plt stated that he did not check the fuel system for contaminates after refueling but an eighteen minute flt after refueling was uneventful. He then landed the helicopter, remained on the ground aprx 20 minutes, performed a walk around insp, again without… - [NTSB MIA87LA224](https://openairdocs.org/ntsb/MIA87LA224.md): Bell 47J-2A · Orlando, FL · Accident · No injuries · Limited investigation · Final report · Aug 7, 1987 · N8523F · Substantial damage > During the apch to land the tail rotor drive assy failed resulting in a momentary loss of control. The plt then autorotated & landed on the company helipad, during which the helicopter sustained substantial damage. Examination of the tail rotor drive assy… - [NTSB MIA82DA181](https://openairdocs.org/ntsb/MIA82DA181.md): Bell 47G4 · Madison, FL · Accident · Minor injuries · Final report · Sep 13, 1982 · N1151W · Substantial damage > The eng did not respond when power was added beginning a swath run. The plt hit the dump button to jettison the load & collided with the ground. Eng teardown revealed no evidence of failure or malfunction prior to the accident. - [NTSB MIA82DA133](https://openairdocs.org/ntsb/MIA82DA133.md): Bell 47G-4 · N. Greenville, FL · Accident · No injuries · Final report · Jun 11, 1982 · N1151W · Substantial damage > The pilot took off at about 1922 to dispense a non-toxic liquid chemical and fertilizer on a nearby melon field. After one normal swath run on a northerly heading, he pulled up and began a procedure turn to the left (west). He stated the afternoon sun… - [NTSB MIA82DA125](https://openairdocs.org/ntsb/MIA82DA125.md): Bell 47J-2A · Marathon, FL · Accident · No injuries · Final report · May 29, 1982 · N73268 · Destroyed > The pilot reported that an intermittent vibration was felt during the magneto check before takeoff. During a second magneto check at high power, the nose of the helicopter came up, a loud explosive noise was heard, and a fire erupted near the left fuel tank.… - [NTSB MIA79FLD39](https://openairdocs.org/ntsb/MIA79FLD39.md): Bell 47J-2A · Kissimmee, FL · Accident · No injuries · Closed · Feb 14, 1979 · N8567F · Substantial damage - [NTSB MIA79FA095](https://openairdocs.org/ntsb/MIA79FA095.md): Hiller UH-12E · Homestead, FL · Accident · Serious injuries · Closed · Jan 29, 1979 · N527HA · Destroyed - [NTSB MIA71DKT37](https://openairdocs.org/ntsb/MIA71DKT37.md): Brantly 305 · Boca Raton, FL · Accident · No injuries · Closed · Nov 5, 1970 · N2226U · Substantial damage - [NTSB MIA67A0102](https://openairdocs.org/ntsb/MIA67A0102.md): Bell 47J-2 · Starke, FL · Accident · Minor injuries · Closed · Mar 31, 1967 · N73258 · Substantial damage - [NTSB MIA67A0095](https://openairdocs.org/ntsb/MIA67A0095.md): Bell 47J-2A · Miami Beach, FL · Accident · Minor injuries · Closed · Mar 20, 1967 · N73990 · Substantial damage ## 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."eventStateOrRegion" = 'FL' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41534', '41582')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41534&state=FL --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.