# NTSB investigations: Lycoming HIO-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 WPR13CA160](https://openairdocs.org/ntsb/WPR13CA160.md): Hughes 269C · Rialto, CA · Accident · No injuries · Data collection · Final report · Mar 25, 2013 · N90570 · Substantial damage
  > The student pilot’s failure to maintain helicopter control while maneuvering in a hover.
- [NTSB WPR11LA462](https://openairdocs.org/ntsb/WPR11LA462.md): Hughes 269C · Ramona, CA · Accident · No injuries · Limited investigation · Final report · Sep 22, 2011 · N1088Y · Substantial damage
  > The flight instructor’s failure to follow the proper procedure while demonstrating a practice autorotation, which resulted in a total loss of engine power and subsequent hard landing.
- [NTSB LAX07CA267](https://openairdocs.org/ntsb/LAX07CA267.md): Hughes 269C · Ramona, CA · Accident · Minor injuries · Data collection · Final report · Sep 3, 2007 · N58332 · Substantial damage
  > a loss of engine power for undetermined reasons.
- [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 LAX05LA050](https://openairdocs.org/ntsb/LAX05LA050.md): Schweizer 269C · Ontario, CA · Accident · No injuries · Limited investigation · Final report · Dec 11, 2004 · N130JS · Substantial damage
  > a loss of engine power due to the Designated Pilot Examiner's failure to follow the flight manual procedures and directives regarding throttle settings to be used for practice autorotations.
- [NTSB LAX05LA039](https://openairdocs.org/ntsb/LAX05LA039.md): Schweizer 269C · Rialto, CA · Accident · No injuries · Limited investigation · Final report · Nov 22, 2004 · N45012 · Substantial damage
  > the pilot's failure to maintain adequate rotor rpm and altitude/clearance during the takeoff initial climb.
- [NTSB LAX03CA264](https://openairdocs.org/ntsb/LAX03CA264.md): Hughes 269C · Columbia, CA · Accident · No injuries · Data collection · Final report · Aug 25, 2003 · N58363 · Substantial damage
  > the student pilot's improper execution of the autorotation. Also causal, was the CFI's delayed remedial action and supervision of the flight.
- [NTSB LAX03FA134](https://openairdocs.org/ntsb/LAX03FA134.md): Hughes 269B · Auburn, CA · Accident · 2 fatal · Field investigation · Final report · Apr 11, 2003 · N16133 · Destroyed
  > the misjudged flare maneuver by an unknown crewmember during a likely practice autorotation that resulted in an in-flight collision with terrain.
- [NTSB LAX03FA060](https://openairdocs.org/ntsb/LAX03FA060.md): Schweizer 269C · Collinsville, CA · Accident · 1 fatal · Field investigation · Final report · Jan 4, 2003 · N98TH · Destroyed
  > A loss of engine power for undetermined reasons, and the pilot's failure to maintain main rotor rpm during the subsequent autorotation. A factor in the accident was the unsuitable nature of the terrain for a forced landing.
- [NTSB LAX03LA052](https://openairdocs.org/ntsb/LAX03LA052.md): Schweizer 269C · Los Banos, CA · Accident · No injuries · Limited investigation · Final report · Dec 18, 2002 · N642KC · Substantial damage
  > The improper engine overhaul by other maintenance personnel, which resulted in an exhaust valve failure and a total loss of engine power while in maneuvering flight.
- [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 LAX01LA121](https://openairdocs.org/ntsb/LAX01LA121.md): Schweizer 269C · Ojai, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 19, 2001 · N6123A · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB LAX01LA120](https://openairdocs.org/ntsb/LAX01LA120.md): Enstrom F-28C · Hollister, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 18, 2001 · N637H · Destroyed
  > the pilot's inadequate use of the antitorque controls and subsequent failure to maintain directional control of the helicopter during the takeoff initial climb.
- [NTSB LAX01LA053](https://openairdocs.org/ntsb/LAX01LA053.md): Hughes 269C · Carlsbad, CA · Accident · No injuries · Limited investigation · Final report · Dec 4, 2000 · N1097N · Substantial damage
  > The CFI's inadequate supervision and failure to maintain control of the helicopter during a practice autorotation. A contributing factor was the student's improper in-flight planning/decision.
- [NTSB LAX00LA226](https://openairdocs.org/ntsb/LAX00LA226.md): Hughes 269C · Santa Clarita, CA · Accident · No injuries · Limited investigation · Final report · Jun 14, 2000 · N9692F · Substantial damage
  > Settling with power precipitated by a wind direction change during the approach to land sequence and the check pilot's delayed remedial action to correct the event. Factors in the accident were crew resource management coordination concerning flight control…
- [NTSB LAX00LA181](https://openairdocs.org/ntsb/LAX00LA181.md): Hughes 269C · Rialto, CA · Accident · Minor injuries · Limited investigation · Final report · May 1, 2000 · N5395S · Substantial damage
  > The student's misjudged altitude and failure to maintain rotor rpm while practicing an autorotation, and, the instructor's delayed remedial corrective action and inadequate supervision of the flight.
- [NTSB LAX97LA224](https://openairdocs.org/ntsb/LAX97LA224.md): Enstrom F-28-F · Riverside, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 25, 1997 · N99YC · Substantial damage
  > failure by unknown maintenance personnel to retorque the nuts on the retainer cover.
- [NTSB LAX95LA332](https://openairdocs.org/ntsb/LAX95LA332.md): Enstrom F-28C · Livermore, CA · Accident · 1 fatal · Limited investigation · Final report · Sep 10, 1995 · N5689T · Destroyed
  > the pilot's inadequate preflight fuel load determination procedures which resulted in fuel exhaustion. In addition, the pilot's delayed and improper use of the collective and cyclic flight controls following the engine failure led to his failure to maintain…
- [NTSB LAX95LA271](https://openairdocs.org/ntsb/LAX95LA271.md): Hughes 269C · Redlands, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 27, 1995 · N747MK · Substantial damage
  > The company's maintenance personnel improper servicing of the landing skid actuators.
- [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 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 LAX92LA383](https://openairdocs.org/ntsb/LAX92LA383.md): Hughes 269C · Rialto, CA · Accident · No injuries · Limited investigation · Final report · Sep 12, 1992 · N58164 · Substantial damage
  > The pilot/passenger's failure to maintain adequate rotor RPM and the pilot-in-command's inadequate supervision of the flight.
- [NTSB LAX90LA065](https://openairdocs.org/ntsb/LAX90LA065.md): Hughes 269C · Rialto, CA · Accident · No injuries · Limited investigation · Final report · Jan 6, 1990 · N7456F · Destroyed
  > The lack of adequate supervision by the instructor pilot during a critical phase of flight when he allowed a student to perform in an unsafe manner without taking immediate corrective action.
- [NTSB LAX89LA152](https://openairdocs.org/ntsb/LAX89LA152.md): Hughes 269B · Long Beach, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 8, 1989 · N9456F · Substantial damage
  > Improper in-flight planning/decision by the pilot, which led to an inadequate supply of fuel to reach the airport and subsequent fuel exhaustion. The pilot's lack of flight time in this make and model of helicopter was considered to be a factor.
- [NTSB LAX89LA044](https://openairdocs.org/ntsb/LAX89LA044.md): Enstrom F-28C · Inyokern, CA · Accident · No injuries · Limited investigation · Final report · Nov 16, 1988 · N552CS · Destroyed
  > The pilot stated that, 'I landed in an open unpopulated area for the mechanic... To make adjustments on the main blade (we were tracking and balancing the blades). I never shut the engine down. I disengaged the clutch. After the adjustment was made, I…
- [NTSB LAX87LA339](https://openairdocs.org/ntsb/LAX87LA339.md): Hughes 269C · Freemont, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 1987 · N1101K · Substantial damage
  > The purpose of the flt was to provide instruction to a foreign national, who held a U.S. Private helicopter rating. The instructor (CFI) rprtd that during a practice autorotation, he announced twice for the student to flare as the helicopter was passing thru…
- [NTSB LAX85LA063](https://openairdocs.org/ntsb/LAX85LA063.md): Hughes 269C · Boulevard, CA · Accident · No injuries · Limited investigation · Final report · Dec 8, 1984 · N8663F · Substantial damage
  > Plt was executing low level photographic survey of valleys in mountainous terrain. Acft entered a narrow valley with steeply rising terrain ahead. When plt realized excessive rate of climb would be required to clear obstacles, he attempted a steep turn-around…
- [NTSB LAX83LA429](https://openairdocs.org/ntsb/LAX83LA429.md): Enstrom F-28C · Quincy, CA · Accident · No injuries · Limited investigation · Final report · Sep 8, 1983 · N619H · Substantial damage
  > The acft was on a flt to a radio transmitter site at about the 7000 ft level in mountainous terrain. During arrival to the helipad, the plt noticed that several vehicles were parked on the landing surface. While in a hover, he maneuvered the helicopter to an…
- [NTSB LAX82FA343](https://openairdocs.org/ntsb/LAX82FA343.md): Hughes 269C · North Highlands, CA · Accident · Serious injuries · Field investigation · Final report · Sep 13, 1982 · N8651F · Destroyed
  > The purpose of the flight was to conduct a rotorcraft/helicopter certified flight instructor (CFI) check ride for the pilot-in-command (PIC). The check pilot was an FAA inspector with no previous flight time in this make and model; however, he had 1816 hrs…
- [NTSB LAX82DVA06](https://openairdocs.org/ntsb/LAX82DVA06.md): Enstrom F-28C · Shaver Lake, CA · Accident · No injuries · Closed · Oct 22, 1981 · N56876 · Substantial damage
- [NTSB LAX80FVG26](https://openairdocs.org/ntsb/LAX80FVG26.md): Enstrom F28C · Sacramento, CA · Accident · No injuries · Closed · Apr 16, 1980 · N51764 · Substantial damage
- [NTSB LAX80DVA06](https://openairdocs.org/ntsb/LAX80DVA06.md): Enstrom F-28A · Woodlake, CA · Accident · No injuries · Closed · Dec 12, 1979 · N521H · Substantial damage
- [NTSB LAX74DUA19](https://openairdocs.org/ntsb/LAX74DUA19.md): Hughes 269A · Long Beach, CA · Accident · Minor injuries · Closed · Mar 11, 1974 · N9333F · Substantial damage
- [NTSB LAX74FUA09](https://openairdocs.org/ntsb/LAX74FUA09.md): Hughes 269B · Long Beach, CA · Accident · No injuries · Closed · Oct 17, 1973 · N9333F · Substantial damage
- [NTSB LAX69F0045](https://openairdocs.org/ntsb/LAX69F0045.md): Hughes 269B · Paramount, CA · Accident · Minor injuries · Closed · Jul 4, 1968 · N9456F · 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 ('41524'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41524&state=CA

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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.