# NTSB investigations: Lycoming HIO-360 series: In flight collision with object 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 CHI06LA138](https://openairdocs.org/ntsb/CHI06LA138.md): Hughes 269A · Berlin Center, OH · Accident · 1 fatal · Limited investigation · Final report · May 28, 2006 · N69HU · Substantial damage > The pilot flew at a low altitude and failed to maintain clearance from the wire. A factor was the wire. - [NTSB DEN03LA018](https://openairdocs.org/ntsb/DEN03LA018.md): Enstrom F-28C · Morrison, CO · Accident · Minor injuries · Limited investigation · Final report · Nov 23, 2002 · N552CS · Substantial damage > the pilot not maintaining clearance from the telephone lines during landing. Factors contributing to the accident were the pilot not being able to see the telephone lines, the low altitude, and the dark night. - [NTSB LAX02LA169](https://openairdocs.org/ntsb/LAX02LA169.md): Enstrom F-28C · Stockton, CA · Accident · Serious injuries · Limited investigation · Final report · May 20, 2002 · N51716 · Substantial damage > The pilot's failure to maintain an adequate clearance from the water tower during takeoff. Also causal was the pilot's selection of a confined area for the landing and subsequent takeoff. - [NTSB CHI98LA332](https://openairdocs.org/ntsb/CHI98LA332.md): Schweizer 269C · Decker, IN · Accident · No injuries · Limited investigation · Final report · Sep 4, 1998 · N75068 · Substantial damage > The pilot's failure to maintain obstacle clearance resulting in a collision with a fence. - [NTSB ATL98LA021](https://openairdocs.org/ntsb/ATL98LA021.md): Hughes TH-55 · Bushnell, FL · Accident · No injuries · Limited investigation · Final report · Dec 9, 1997 · N74914 · Substantial damage > The pilot's failure to maintain clearance from the trees during a hover. A factor was the pilot's diverted attention. - [NTSB CHI98LA021](https://openairdocs.org/ntsb/CHI98LA021.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Oct 15, 1997 · N557DC · Substantial damage > the pilot's inadequate preflight planning which resulted in a low fuel state, and his inability to see the wire which the helicopter contacted. Factors associated to the accident were the precautionary landing, the dark night conditions, and the wire which… - [NTSB BFO96LA003](https://openairdocs.org/ntsb/BFO96LA003.md): Enstrom F28-280C · Blue Ash, OH · Accident · No injuries · Limited investigation · Final report · Oct 6, 1995 · N51786 · Substantial damage > the commercial pilot's failure to maintain clearance from obstacles during hover-taxi operations. Related factors the tailwind, the nearby obstacle, and the misjudged maneuver to avoid obstacles. - [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 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. - [NTSB SEA90LA016](https://openairdocs.org/ntsb/SEA90LA016.md): Hughes 269C · Estacada, OR · Accident · 1 fatal · Limited investigation · Final report · Nov 15, 1989 · N9592F · Destroyed > The pilot misjudged clearance between her external load and the obstruction. Factors related to the accident were: the obstruction, improper maintenance and modification of the external load line/hook by the operator, failure of the pilot to jettison the… - [NTSB CHI89FA112](https://openairdocs.org/ntsb/CHI89FA112.md): Hughes 269C · Lockport, IL · Accident · Minor injuries · Field investigation · Final report · Jun 18, 1989 · N26628 · Destroyed > Improper flight technique by the PIC during a takeoff from a confined area. - [NTSB SEA89LA052](https://openairdocs.org/ntsb/SEA89LA052.md): Schweizer 269C · Forrest Grove, OR · Accident · Minor injuries · Limited investigation · Final report · Mar 3, 1989 · N7505Y · Substantial damage > The pilot's misjudgment of his altitude and clearance while attempting to sling-load a trailer. - [NTSB CHI87LA072](https://openairdocs.org/ntsb/CHI87LA072.md): Enstrom F-28A · Martinsville, IN · Accident · No injuries · Limited investigation · Final report · Jan 31, 1987 · N9257 · Destroyed > While landing to the east the plt was blinded by the sun and the acft struck telephone 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 c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41524') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 220)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41524&occurrence=220 --- 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.