# NTSB investigations: Lycoming HIO-360 series, 1993 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 CHI94LA013](https://openairdocs.org/ntsb/CHI94LA013.md): Hughes 269A · Coldwater, MI · Accident · No injuries · Limited investigation · Final report · Oct 12, 1993 · N7032U · Substantial damage > the fatigue failure of the tailboom support strut attachment lug. - [NTSB MIA94LA002](https://openairdocs.org/ntsb/MIA94LA002.md): Schweizer 269C · Opa-Locka, FL · Accident · No injuries · Limited investigation · Final report · Oct 6, 1993 · N95AF · Substantial damage > Improper servicing of three of the four main landing gear dampers by company maintenance personnel, and innadequate remedial action by the pilot as ground resonance began. - [NTSB ATL94LA002](https://openairdocs.org/ntsb/ATL94LA002.md): Hughes 269B · Linville, NC · Accident · No injuries · Limited investigation · Final report · Oct 5, 1993 · N9333F · Substantial damage > The pilot's failure to maintain airspeed that would have avoided a loss of tail rotor effectiveness (lte), and his improper compensation for tailwind condition. A factor was the lack of information in the pilot's operating handbook regarding the conditions… - [NTSB SEA93FA178](https://openairdocs.org/ntsb/SEA93FA178.md): Enstrom F-28C · Seattle, WA · Accident · No injuries · Field investigation · Final report · Aug 18, 1993 · N86198 · Substantial damage > Shorted magneto condensers. Factors include a hidden obstruction in the landing area, and a reduction in rotor RPM from attempting to avoid the obstruction. - [NTSB MIA93LA177](https://openairdocs.org/ntsb/MIA93LA177.md): Schweizer 269C · Punta Gorda, FL · Accident · No injuries · Limited investigation · Final report · Aug 18, 1993 · N95AF · Substantial damage > The pilot-in-command's improper use of the flight controls (cyclic and collective pitch) during a simulated autorotation with turn, resulting in an in flight collision with terrain with the tail skid and tailrotor blades. - [NTSB NYC93GA151](https://openairdocs.org/ntsb/NYC93GA151.md): Enstrom F-28C · Gallipolis, OH · Accident · Serious injuries · Final report · Aug 12, 1993 · N51786 · Substantial damage > The pilot's improper use of the collective and throttle which resulted in a low rotor rpm condition and a loss of control, and an inflight collision with the terrain. - [NTSB DEN93LA070](https://openairdocs.org/ntsb/DEN93LA070.md): Enstrom F-28C · Boulder, CO · Accident · No injuries · Limited investigation · Final report · Jun 27, 1993 · N625H · Substantial damage > A failure by the pilot flying to adequately compensate for wind conditions which led to a loss of tail rotor control. A factor was: inadequate supervision by the pilot in command. - [NTSB LAX93FA260](https://openairdocs.org/ntsb/LAX93FA260.md): Hughes 269A · Henderson, NV · Accident · 1 fatal · Field investigation · Final report · Jun 19, 1993 · N9048R · Destroyed > the pilot's improper use of the collective control and his failure to maintain adequate RPM during an autorotative descent during a practice power off landing. A factor which contributed to the accident related to the pilot's lack of recent experience… - [NTSB NYC93FA115](https://openairdocs.org/ntsb/NYC93FA115.md): Enstrom F28C · Gordon, KY · Accident · 1 fatal · Field investigation · Final report · Jun 17, 1993 · N200NH · Destroyed > The pilot's failure to see and avoid the wire. - [NTSB CHI93LA208](https://openairdocs.org/ntsb/CHI93LA208.md): Hughes 269 · Valley City, ND · Accident · No injuries · Limited investigation · Final report · Jun 15, 1993 · N213MS · Substantial damage > the pilot-in-command's failure to maintain clearance from a tree during an aerial application manuever. - [NTSB CHI93DEE01](https://openairdocs.org/ntsb/CHI93DEE01.md): Mark Streitz Skybolt · Joliet, IL · Accident · No injuries · Final report · Jun 5, 1993 · N94MS · Substantial damage > the failure of the number two connecting rod bolt. - [NTSB LAX93LA227](https://openairdocs.org/ntsb/LAX93LA227.md): Hughes 269C · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · May 26, 1993 · N58407 · Substantial damage > the student pilot's failure to maintain the altitude while maneuvering toward the parking area. The student pilot's lack of total experience was a factor in this accident. - [NTSB MIA93LA061](https://openairdocs.org/ntsb/MIA93LA061.md): Hughes 269A · Jacksonville, FL · Accident · No injuries · Limited investigation · Final report · Feb 4, 1993 · N711CH · Substantial damage > The failure of the pilot-in-command to monitor fuel quantity due to inattentiveness. Contributing to the accident was the improper use of the collective flight control during the soft field autorotation. - [NTSB BFO93FA019](https://openairdocs.org/ntsb/BFO93FA019.md): Hughes 269C · Tonawanda, NY · Accident · 2 fatal · Field investigation · Final report · Jan 11, 1993 · N1088Z · Destroyed > Improper inflight planning/decision by the pilot and his failure to maintain clearance from an obstacle during flight. Factors related to the accident include poor visibility and weather conditions at dusk, and the pilot's excessive airspeed for the… - [NTSB LAX93LA087](https://openairdocs.org/ntsb/LAX93LA087.md): Hughes 269C · Folsom, CA · Accident · Serious injuries · Limited investigation · Final report · Jan 2, 1993 · N7462F · Destroyed > The pilot failing to maintain an adequate visual lookout resulting in the helicopter colliding with electrical transmission wires. ## 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") = 1993 AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41524')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41524&year=1993 --- 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.