# NTSB investigations: Lycoming VO-435 series, 1983 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 LAX83FA448](https://openairdocs.org/ntsb/LAX83FA448.md): Bell 47G · Oceanside, CA · Accident · No injuries · Field investigation · Final report · Sep 19, 1983 · N62221 · Substantial damage > Shortly after takeoff, the eng lost power at an alt of aprx 400 ft AGL. An autorotative landing was made on uneven terrain beside a stream with weeds aprx 3 ft high. During touchdown, the main rotor struck the tail boom. An inspection of the engine revealed… - [NTSB MIA83LA212](https://openairdocs.org/ntsb/MIA83LA212.md): Bell 47J · Labelle, FL · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1983 · N5824 · Substantial damage > While at an altitude of about 150 ft, the eng lost power. The plt initiated an autorotation, but during the landing, the main rotor struck trees & the helicopter was substantially damaged. The plt estimated there was 15 gal of fuel on board during the… - [NTSB MIA83LA196](https://openairdocs.org/ntsb/MIA83LA196.md): Bell 47G-2 · Miami, FL · Accident · No injuries · Limited investigation · Final report · Aug 5, 1983 · N471KC · Substantial damage > The student was a rated single eng, multiengine, land plt, but did not have a helicopter rating. During a dual instructional flt, he had just completed the final phase of an autorotation & the skids were on the ground, when he abruptly pulled the collective… - [NTSB FTW83FA311](https://openairdocs.org/ntsb/FTW83FA311.md): Bell 47G-2 · Bethany, OK · Accident · Minor injuries · Field investigation · Final report · Jul 3, 1983 · N2495B · Destroyed > The helicopter collided with trees and rolled over during a forced landing after engine failure. The plt had been takingpassengers up for sight-seeing for several hours. After the last flt he and his wife had departed the city park to fly back to the acft… - [NTSB LAX83FUM07](https://openairdocs.org/ntsb/LAX83FUM07.md): Bell 47G-5 · Valley Center, CA · Accident · No injuries · Final report · Jun 14, 1983 · N2252W · Substantial damage > The acft was damaged during a forced landing following a power loss while engaged in aerial application. The pilot took off with 25 gallons of fuel which he said was usually enough for spraying 40-50 acres. This job was 19 acres but it was 10-12 miles away at… - [NTSB SEA83LA122](https://openairdocs.org/ntsb/SEA83LA122.md): Bell 47G-2 · Zillah, WA · Accident · No injuries · Limited investigation · Final report · Jun 11, 1983 · N41721 · Substantial damage > The rotorcraft made a hard landing after colliding with trees during an autorotation. The acft had experienced an enginefailure while on a repositioning flight between aerial application operations and was forced to land. The acft was autorotated into an… - [NTSB NYC83FHD01](https://openairdocs.org/ntsb/NYC83FHD01.md): Hiller UH-12D · Bricktown, NJ · Accident · No injuries · Final report · Jun 8, 1983 · N67155 · Substantial damage > The plt reported an erratic RPM drop & a partial loss of power during a swath run. This occurred when the helicopter was aprx 10 ft above trees at aprx 40 KTS. The acft began losing airspeed & altitude. During an emergency landing, the tail rotor & main rotor… - [NTSB ATL83LA220](https://openairdocs.org/ntsb/ATL83LA220.md): Texas Helicopter OH-13H/M74A · Ruleville, MS · Accident · No injuries · Limited investigation · Final report · Jun 8, 1983 · N1001G · Substantial damage > The plt reported that the engine lost power during a swath run. A run-on landing was made. Prior to stopping, the right skid & right spray boom hit a rice level, and subsequenily, the main rotor blade chopped the tail boom. No preimpact failures were found. - [NTSB ANC83FA092](https://openairdocs.org/ntsb/ANC83FA092.md): Bell B47G-2 · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Jun 7, 1983 · N6140C · Substantial damage > The helicopter experienced a tail rotor strike during a hard landing with a door open. According to the student pilot who is a commercial pilot working on an add-on helicopter rating, the left cockpit door unlatched and partially opened on the downwind leg… - [NTSB MKC83FA114](https://openairdocs.org/ntsb/MKC83FA114.md): Hiller UH-12E · Troy, KS · Accident · Serious injuries · Field investigation · Final report · May 24, 1983 · N3GK · Destroyed > The acft collided with a powerline while the pilot was locating a field to spray at a later date. The pilot saw telephone lines and flew over them but hit the powerlines which were 20 feet higher. The skids caught the wires and the helicopter nosed down,… - [NTSB NYC83FA106](https://openairdocs.org/ntsb/NYC83FA106.md): Bell 47G-2 · Waymart, PA · Accident · 2 fatal · Field investigation · Final report · Apr 30, 1983 · N2829B · Destroyed > This was an introductory instructional flt. Witnesses observed the helicopter flying straight & level prior to the accident. The helicopter had impacted a 60-FT tree at about the 40-FT level. No preimpact failure/falfunction of either the airframe or engine… - [NTSB LAX83FUA03](https://openairdocs.org/ntsb/LAX83FUA03.md): Bell 47G-5 · Irvine, CA · Accident · No injuries · Final report · Feb 10, 1983 · N1375X · Substantial damage > The helicopter landed hard in a field off the airport following an engine power loss. The acfr had lifted off and only traveled about 50 feet at 15 feet AGL when the power loss occurred. An engine teardown revealed that the rings on 3 cylinders had not seated… - [NTSB MIA83LA069](https://openairdocs.org/ntsb/MIA83LA069.md): Bell 47G2 · Riverview, FL · Accident · Minor injuries · Limited investigation · Final report · Jan 29, 1983 · N74822 · Substantial damage > According to the pilot he lost control of the acft after a bird hit him on the right temple while flying at about 15 feet above the water. The acft was traveling at about 50 mph when the bird flew in through left door opening. The pilot lost control of the… - [NTSB ANC83LA035](https://openairdocs.org/ntsb/ANC83LA035.md): Bell 47G-2 · Anchorage, AK · Accident · Minor injuries · Limited investigation · Final report · Jan 19, 1983 · N2822B · Substantial damage > The helicopter made a landing during which the tail boom was severed. This was a dual instructional flight and accordingto the instructor, a high reconnaissance was performed before selecting their approach to the pinnacle. The pinnacle is a 3000 foot landing… ## 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 year(c."eventDate") = 1983 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 ``` This list as a web page: https://openairdocs.org/ntsb?engine=41525&year=1983 --- 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.