# NTSB investigations: Lycoming HIO-360 series: Airframe/component/system failure/malfunction 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 LAX07LA106](https://openairdocs.org/ntsb/LAX07LA106.md): Enstrom F-28F · Monmouth, OR · Accident · No injuries · Limited investigation · Final report · Mar 6, 2007 · N785M · Substantial damage > The failure of the main drive belt tension assembly shaft due to high cycle, low stress fatigue. - [NTSB LAX06LA290](https://openairdocs.org/ntsb/LAX06LA290.md): Schweizer 269C-1 · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Sep 10, 2006 · N323CP · Substantial damage > Inadequate maintenance adjustment and missing mixture spring, which resulted in a loss of engine power during approach. - [NTSB CHI06TA033](https://openairdocs.org/ntsb/CHI06TA033.md): Schweizer 269C · Manhattan, KS · Accident · No injuries · Final report · Nov 18, 2005 · N400PD · Substantial damage > The binding of the main rotor blade's tachometer cable during cruise flight resulting in an observed split tachometer indication/aural alarm and perceived mechanical emergency and the unsuitable terrain the pilot encountered during the emergency landing. A… - [NTSB IAD05LA046](https://openairdocs.org/ntsb/IAD05LA046.md): Schweizer 269C · Leet, WV · Accident · Serious injuries · Limited investigation · Final report · Mar 19, 2005 · N61193 · Substantial damage > A fatigue fracture of the main transmission drive pinion. Also causal was the manufacturer's failure to remove the affected pinions from service during the period that transpired between the initial failures and the accident flight. - [NTSB CHI04LA032](https://openairdocs.org/ntsb/CHI04LA032.md): Hughes TH-55A · West Lafayette, IN · Accident · Serious injuries · Limited investigation · Final report · Nov 18, 2003 · N9240D · Substantial damage > The fractured cluster fitting resulting in a loss of directional control during initial climb and the improper repair of cluster fitting by unknown personnel. The night conditions were a contributing factor. - [NTSB CHI04IA018](https://openairdocs.org/ntsb/CHI04IA018.md): Enstrom F-28C · Lapeer, MI · Incident · No injuries · Incident investigation · Final report · Oct 22, 2003 · N77HX · Minor damage > Complete failure of the right anti-torque cable while on final approach for landing. A factor was the diminished tail rotor control resulting from the broken cable. - [NTSB CHI02LA293](https://openairdocs.org/ntsb/CHI02LA293.md): Hughes 269A · Council Bluffs, IA · Accident · No injuries · Limited investigation · Final report · Sep 24, 2002 · N1040S · Substantial damage > The premature fracture of the cyclic/mixture bracket resulting in the inability to conduct a landing flare. - [NTSB DEN02LA098](https://openairdocs.org/ntsb/DEN02LA098.md): Schweizer 269C · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Aug 20, 2002 · N7508L · Substantial damage > maintenance personnel's failure to secure the landing skid oleo strut bolt during the last 50-hour inspection, causing the left rear skid to collapse and the tail rotor to strike the ground. - [NTSB NYC01LA167](https://openairdocs.org/ntsb/NYC01LA167.md): Hughes 269A · Clay, NY · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 2001 · N7028V · Substantial damage > Failure of the left aft cluster fitting due to a fatigue crack. Factors in the accident were the mechanic's failure to identify the crack at the last annual inspection, and the pilot's failure to identify the crack during the last daily inspection - [NTSB SEA98FA055](https://openairdocs.org/ntsb/SEA98FA055.md): Enstrom F28F · Baker, OR · Accident · No injuries · Field investigation · Final report · Mar 30, 1998 · N171HH · Substantial damage > Fatigue failure of the steel tubing pylon structure. Factors include inadequate inspection by maintenance personnel of damage after a previous accident. - [NTSB FTW98TA104](https://openairdocs.org/ntsb/FTW98TA104.md): Hughes 269C · Brackettville, TX · Accident · Minor injuries · Final report · Jan 22, 1998 · N1093N · Substantial damage > failure of splines on the drive shaft coupling after separation of the forward bubber boot and loss of lubrication (grease), which resulted in a disconnect of the rotor drive system and an autorotation/forced landing. Lack of suitable terrain in the forced… - [NTSB FTW96LA095](https://openairdocs.org/ntsb/FTW96LA095.md): Schweizer 269C · San Ygnacio, TX · Accident · No injuries · Limited investigation · Final report · Jan 12, 1996 · N3623T · Substantial damage > Failure of the rotor drive system clutch assembly (separation of the swedge ball from the end of the clutch control cable), which resulted in disengagement of the rotor drive system, while the helicopter was in lateral movement at low altitude. - [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 FTW89LA010](https://openairdocs.org/ntsb/FTW89LA010.md): Hughes 269C · Dickens, TX · Accident · No injuries · Limited investigation · Final report · Oct 27, 1988 · N7463F · Destroyed > The pilot was inspecting a herd of cattle when he thought the helicopter was developing a problem with the engine and main rotor. He started an autorotation, lost tail rotor control, and went into a left spin which continued to contact with the ground.… - [NTSB SEA88LA073](https://openairdocs.org/ntsb/SEA88LA073.md): Hughes 269C · Sitka, AK · Accident · No injuries · Limited investigation · Final report · Apr 12, 1988 · N92PC · Substantial damage > During sling operations, the long line became separated and entangled in the tail rotor at about 300 feet AGL. The pilot landed the helicopter onto a beach area where it rolled over onto its left side striking the main rotor. No accident report has been filed… - [NTSB NYC87MA024](https://openairdocs.org/ntsb/NYC87MA024.md): Enstrom F-28F · Manhattan, NY · Accident · 1 fatal · Major investigation · Final report · Oct 22, 1986 · N8617B · Destroyed > The aircraft was contracted by nbc to make daily highway traffic observations in the new york city area. The pilot and passenger, an nbc radio traffic reporter, were flying in a northerly direction along Manhattan's west side at an altitude of about 75 feet.… - [NTSB CHI86LA127](https://openairdocs.org/ntsb/CHI86LA127.md): Hughes 269A · Ft. Wayne, IN · Accident · Minor injuries · Limited investigation · Final report · Apr 23, 1986 · N8752F · Destroyed > Approx 10-15 minutes after takeoff the student pilot lost control of the helicopter and crash landed into trees. Following the accident, the only unusual thing FAA personnel could locate was a failed horizontal stabilizer spar. Post-crash examination of the… - [NTSB SEA85LA079](https://openairdocs.org/ntsb/SEA85LA079.md): Hughes 269C · Elma, WA · Accident · No injuries · Limited investigation · Final report · Mar 20, 1985 · N9592F · Substantial damage > Just prior to lift-off a vibration accompanied by lateral rocking occurred. Although the plt brought the power to idle. The helicopter had already started to come apart. During engine examination it was found that the ground resonance occurred due to under to… - [NTSB LAX82DA283](https://openairdocs.org/ntsb/LAX82DA283.md): Enstrom F28C · Phoenix, AZ · Accident · No injuries · Final report · Jul 31, 1982 · N5688N · Substantial damage > The helicopter made a forced landing in a cotton field after tail rotor driveshaft failure. Examination showed a ductileshear overload failure. No evidence of fatigue was reported. ## 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" = 130)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41524&occurrence=130 --- 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.