# NTSB investigations: Lycoming HO-360 series, CA 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 WPR26LA009](https://openairdocs.org/ntsb/WPR26LA009.md): Mooney M20C · Watsonville, CA · Accident · No injuries · Class 4 · Limited · Final report · Oct 7, 2025 · N6814N · Substantial damage > The pilot’s decision to program avionics during taxi, resulting in an inadvertent throttle input and collision with a hangar. - [NTSB LAX08LA213](https://openairdocs.org/ntsb/LAX08LA213.md): Schweizer 269 C-1 · Sunol, CA · Accident · 2 fatal · Limited investigation · Final report · Jul 4, 2008 · N2011A · Destroyed > The pilots' failure to maintain adequate clearance from transmission wires during cruise flight. Contributing to the accident were the dark night and low fog. - [NTSB LAX06LA123](https://openairdocs.org/ntsb/LAX06LA123.md): Schweizer 269C-1 · Valencia, CA · Accident · 1 fatal · Limited investigation · Final report · Feb 25, 2006 · N61466 · Destroyed > The certified flight instructor's failure to maintain an adequate clearance from objects. - [NTSB LAX04LA331](https://openairdocs.org/ntsb/LAX04LA331.md): Schweizer 269C-1 · Burbank, CA · Accident · No injuries · Limited investigation · Final report · Sep 25, 2004 · N61413 · Substantial damage > the failure of maintenance personnel to correctly service the forward landing gear strut dampers in accordance with the manufacturer's maintenance instructions. - [NTSB LAX04CA233](https://openairdocs.org/ntsb/LAX04CA233.md): Schweizer 269C-1 · Brentwood, CA · Accident · No injuries · Data collection · Final report · Jun 5, 2004 · N9421K · Substantial damage > the student's improper use of the cyclic control, the flight instructor's inadequate supervision, and his delayed remedial action. A factor in the accident was the CFI's diverted attention. - [NTSB LAX04LA197](https://openairdocs.org/ntsb/LAX04LA197.md): Schweizer 269C-1 · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Apr 27, 2004 · N61415 · Substantial damage > the failure of maintenance personnel to ensure the proper charge of the aft landing gear dampers in accordance with the manufacturer's recommendations. - [NTSB LAX03LA010](https://openairdocs.org/ntsb/LAX03LA010.md): Schweizer 269C · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Oct 18, 2002 · N61416 · Substantial damage > The flight instructor's inadequate supervision and delayed remedial action, which resulted in a hard landing. - [NTSB LAX02LA228](https://openairdocs.org/ntsb/LAX02LA228.md): Schweizer 269C-1 · Concord, CA · Accident · No injuries · Limited investigation · Final report · Jul 15, 2002 · N20256 · Substantial damage > The main rotor mast support tube failure as a result of fatigue. - [NTSB LAX01LA219](https://openairdocs.org/ntsb/LAX01LA219.md): Hughes 269A · Paso Robles, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 2001 · N8724F · Substantial damage > the pilot's failure to maintain rotor rpm during a practice autorotational landing, which resulted in a hard landing. - [NTSB LAX00LA216](https://openairdocs.org/ntsb/LAX00LA216.md): Schweizer 269C-1 · Brentwood, CA · Accident · No injuries · Limited investigation · Final report · Jun 5, 2000 · N2029H · Substantial damage > The student's improper execution of a quick-stop maneuver in that he misjudged his altitude and failed to terminate at a stationary hover prior to descending to a low hover. This resulted in an excessive engine power requirement and the student improperly… - [NTSB LAX99LA166](https://openairdocs.org/ntsb/LAX99LA166.md): Schweizer 269C-1 · Concord, CA · Accident · No injuries · Limited investigation · Final report · Apr 30, 1999 · N6148V · Substantial damage > The inadequate supervision of the student pilot by the flight instructor during the practice autorotation, which resulted in a delayed flare and the tail rotor contacting the ground. A factor was a misinterpreted communication between the flight instructor… - [NTSB LAX91LA257](https://openairdocs.org/ntsb/LAX91LA257.md): Schweizer 269B · Cottonwood, CA · Accident · 1 fatal · Limited investigation · Final report · Jun 9, 1991 · N103AB · Destroyed > The pilot's inadequate visual lookout. The transmission wire was a factor in the accident. - [NTSB LAX90LA187](https://openairdocs.org/ntsb/LAX90LA187.md): Hughes 269C · Rialto, CA · Accident · No injuries · Limited investigation · Final report · May 23, 1990 · N7441F · Substantial damage > Improper maintenance procedure by maintenance personnel to troubleshoot a reported deficiency and the pilot's decision to demonstrate the vibration, exceeding the design limits of the helicopter and inducing ground resonance. Contributing to the accident was… - [NTSB OAK76FVM01](https://openairdocs.org/ntsb/OAK76FVM01.md): Enstrom F28A · San Francisco, CA · Accident · No injuries · Closed · Jul 5, 1975 · N4893 · Substantial damage - [NTSB LAX74FUG09](https://openairdocs.org/ntsb/LAX74FUG09-134327.md): Pitts SPL S-1C · Highgrove, CA · Accident · 1 fatal · Closed · Sep 8, 1974 · N7021 · Substantial damage - [NTSB LAX74FUQ27](https://openairdocs.org/ntsb/LAX74FUQ27.md): Pitts Spcl S1C · Burbank, CA · Accident · No injuries · Closed · Jan 5, 1974 · N1XX · 2 aircraft · Minor damage - [NTSB LAX71FUG94](https://openairdocs.org/ntsb/LAX71FUG94.md): Hughes 269A · Ontario, CA · Accident · No injuries · Closed · Jun 20, 1971 · N8900F · Substantial damage - [NTSB LAX70FUG31](https://openairdocs.org/ntsb/LAX70FUG31.md): Hughes 269A · Arlington, CA · Accident · No injuries · Closed · May 5, 1970 · N8709F · Substantial damage - [NTSB LAX69F0137](https://openairdocs.org/ntsb/LAX69F0137.md): Hughes 269A · Chula Vista, CA · Accident · No injuries · Closed · Aug 28, 1968 · N8709F · Substantial damage - [NTSB LAX69F0106](https://openairdocs.org/ntsb/LAX69F0106.md): Hughes 269A · Industry, CA · Accident · Minor injuries · Closed · Aug 28, 1968 · N8927F · Substantial damage - [NTSB OAK69D0126](https://openairdocs.org/ntsb/OAK69D0126.md): Hughes 269A · Panoche, CA · Accident · No injuries · Closed · Aug 8, 1968 · N8751F · Substantial damage - [NTSB LAX69D0042](https://openairdocs.org/ntsb/LAX69D0042.md): Hughes 269A · Culver City, CA · Accident · No injuries · Closed · Jul 21, 1968 · N8923F · Substantial damage - [NTSB LAX68F0374](https://openairdocs.org/ntsb/LAX68F0374.md): Hughes 269A · Culver City, CA · Accident · No injuries · Closed · Apr 4, 1968 · N8923F · Substantial damage - [NTSB LAX68A0072](https://openairdocs.org/ntsb/LAX68A0072.md): Hughes 269A · Compton, CA · Accident · Minor injuries · Closed · Feb 4, 1968 · N8879F · Substantial damage - [NTSB LAX68A0033](https://openairdocs.org/ntsb/LAX68A0033.md): Hughes 269A · Santa Ana, CA · Accident · No injuries · Closed · Sep 17, 1967 · N8879F · Substantial damage - [NTSB LAX68A0028](https://openairdocs.org/ntsb/LAX68A0028.md): Hughes 269A · Walker Basin, CA · Accident · No injuries · Closed · Sep 3, 1967 · N8900F · Substantial damage - [NTSB LAX67A0052](https://openairdocs.org/ntsb/LAX67A0052.md): Hughes 269A · Van Nuys, CA · Accident · Minor injuries · Closed · Nov 21, 1966 · N8751F · Substantial damage - [NTSB LAX67A0030](https://openairdocs.org/ntsb/LAX67A0030.md): Hughes 269A · Lakewood, CA · Accident · No injuries · Closed · Sep 3, 1966 · N8923F · Substantial damage - [NTSB OAK66F0240](https://openairdocs.org/ntsb/OAK66F0240.md): Piper PA-24 · Lone Pine, CA · Accident · No injuries · Closed · Apr 3, 1966 · N5326P · Substantial damage - [NTSB LAX66A0046](https://openairdocs.org/ntsb/LAX66A0046.md): Hughes 269A · Lompoc, CA · Accident · No injuries · Closed · Dec 4, 1965 · N8900F · Substantial damage - [NTSB LAX65A0076](https://openairdocs.org/ntsb/LAX65A0076.md): Hughes 269A · San Diego, CA · Accident · Serious injuries · Closed · Mar 30, 1965 · N8911F · Destroyed - [NTSB OAK65A0056](https://openairdocs.org/ntsb/OAK65A0056.md): Hughes 269A · Novato, CA · Accident · No injuries · Closed · Feb 15, 1965 · N8878F · Substantial damage - [NTSB OAK65A0052](https://openairdocs.org/ntsb/OAK65A0052.md): Hughes 269A · Visalia, CA · Accident · No injuries · Closed · Jan 12, 1965 · N8888F · Substantial damage - [NTSB UNK65X0253](https://openairdocs.org/ntsb/UNK65X0253.md): Hughes 269A · Huntngtn Bh, CA · Accident · Serious injuries · Closed · Oct 12, 1964 · N8894F · Substantial damage - [NTSB UNK64X0488](https://openairdocs.org/ntsb/UNK64X0488.md): Hughes 269A · San Jose, CA · Accident · No injuries · Closed · Feb 8, 1964 · N8879F · 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" = 'CA' 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 ('41513')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41513&state=CA --- 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.