# NTSB investigations: Lycoming HIO-360 series: Hard landing

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 CHI08CA020](https://openairdocs.org/ntsb/CHI08CA020.md): Schweizer 269C · Hazelton, IN · Accident · Serious injuries · Data collection · Final report · Dec 5, 2007 · N75068 · Substantial damage
  > The pilot's failure to maintain adequate main rotor speed during the intentional autorotation, and his subsequent inability to reduce the descent rate prior to impact. A contributing factor was the intentional autorotation initiated by the pilot.
- [NTSB CHI06CA131](https://openairdocs.org/ntsb/CHI06CA131.md): Schweizer 269C · Lees Summit, MO · Accident · No injuries · Data collection · Final report · May 12, 2006 · N7506L · Substantial damage
  > The flight instructor's delay in taking remedial action which led to the hard landing during the practice autorotation. The misjudged glide path, the dual student restricting the throttle control, and the trees were factors in the accident.
- [NTSB MIA06CA013](https://openairdocs.org/ntsb/MIA06CA013.md): Schweizer 269C-1 · Titusville, FL · Accident · No injuries · Data collection · Final report · Oct 29, 2005 · N1567C · Substantial damage
  > The pilot-in-command's improper flare during a practice autorotative landing, which resulted in a hard landing.
- [NTSB DFW05CA168](https://openairdocs.org/ntsb/DFW05CA168.md): Hughes 269C · Bruceville, TX · Accident · No injuries · Data collection · Final report · Jun 23, 2005 · N7487F · Substantial damage
  > The flight instructor's improper flare during autorotation, which resulted in a hard landing. Contributing factor was, the lack of suitable terrain.
- [NTSB DEN04CA092](https://openairdocs.org/ntsb/DEN04CA092.md): Schweizer 269C · Englewood, CO · Accident · No injuries · Data collection · Final report · Jun 13, 2004 · N2062N · Substantial damage
  > the settling with power situation encountered by the pilot. Contributing to the accident was the high density altitude.
- [NTSB NYC04LA051](https://openairdocs.org/ntsb/NYC04LA051.md): Schweizer 269C-1 · Byron, NY · Accident · Serious injuries · Limited investigation · Final report · Dec 27, 2003 · N358SS · Substantial damage
  > The pilot's improper use of the collective, and failure to maintain main rotor rpm, which resulted in low main rotor rpm and a hard landing.
- [NTSB ATL02LA141](https://openairdocs.org/ntsb/ATL02LA141.md): Hughes HU-269-A · Hamilton, AL · Accident · No injuries · Limited investigation · Final report · Jul 12, 2002 · N911LH · Substantial damage
  > The pilot's improper use of flight controls that resulted in an improper flare and a hard landing during a practice autorotation. A factor was the loss of rotor rpm.
- [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 LAX00TA355](https://openairdocs.org/ntsb/LAX00TA355.md): Hughes TH-55A · Phoenix, AZ · Accident · No injuries · Final report · Sep 29, 2000 · N331SD · Substantial damage
  > the flight instructor's misjudged flare during a simulated autorotation, which led to a hard landing.
- [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 NYC99LA217](https://openairdocs.org/ntsb/NYC99LA217.md): Hughes 269C · Utica, NY · Accident · No injuries · Limited investigation · Final report · Sep 1, 1999 · N58397 · Substantial damage
  > The pilot's failure to maintain control of the helicopter while maneuvering, which resulted in a hard landing. A factor in this accident was the pilot's lack of total experience in helicopters.
- [NTSB FTW98LA279](https://openairdocs.org/ntsb/FTW98LA279.md): Schweizer 269C · San Angelo, TX · Accident · No injuries · Limited investigation · Final report · May 20, 1998 · N41TH · Substantial damage
  > The improper touchdown executed by the flight instructor, which resulted in the tail rotor impacting the ground.
- [NTSB CHI98LA166](https://openairdocs.org/ntsb/CHI98LA166.md): Enstrom F28 · West Chicago, IL · Accident · No injuries · Limited investigation · Final report · May 14, 1998 · N86238 · Substantial damage
  > the student pilot attempting a tailwind landing and improper compensation for the wind resulting in too high of a sink rate and the hard landing.
- [NTSB ANC98LA037](https://openairdocs.org/ntsb/ANC98LA037.md): Enstrom F-28F · Haines, AK · Accident · Minor injuries · Limited investigation · Final report · Apr 12, 1998 · N199LB · Substantial damage
  > The pilot flaring too low during an improper practice autorotation.
- [NTSB MIA98LA127](https://openairdocs.org/ntsb/MIA98LA127.md): Schweizer 269-C · Ormond Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 8, 1998 · N7509E · Substantial damage
  > The CFI's inadequate supervision and poor communication which led the rated student pilot to roll the throttle off, and the CFI's subsequent failure to apply forward cyclic to increase airspeed which resulted in the subsequent hard landing and roll over.
- [NTSB CHI97LA118](https://openairdocs.org/ntsb/CHI97LA118.md): Hughes 269A · Council Bluffs, IA · Accident · No injuries · Limited investigation · Final report · Apr 27, 1997 · N1040S · Substantial damage
  > failure of the student pilot to maintain directional control, inadequate supervision by the flight instructor (CFI), and subsequent failure of the pilot(s) to properly flare the helicopter during a hover autorotation.
- [NTSB LAX95LA188](https://openairdocs.org/ntsb/LAX95LA188.md): Schweizer 269C · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · May 12, 1995 · N6120A · Substantial damage
  > The CFI's failure to apply adequate power during the flare which was a result of not maintaining the required engine and rotor rpm.
- [NTSB CHI94LA316](https://openairdocs.org/ntsb/CHI94LA316.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Sep 7, 1994 · N61245 · Substantial damage
  > the pilot-in-command's (CFI) delayed recovery from a practice autorotation. A factor associated with the accident was the student pilot's improper autorotation.
- [NTSB CHI94LA138](https://openairdocs.org/ntsb/CHI94LA138.md): Schweizer 269C · Fargo, ND · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 1994 · N3623Y · Substantial damage
  > the pilot in command's improper autorotation technique. A factor associated with the accident is the FAA Inspector's delayed remedial action.
- [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 FTW91LA150](https://openairdocs.org/ntsb/FTW91LA150.md): Hughes 269A-1 · No. Little Rock, AR · Accident · No injuries · Limited investigation · Final report · Aug 18, 1991 · N65372 · Substantial damage
  > The pilot's failure to maintain main rotor RPM, his delayed flare, and the improper touchdown.
- [NTSB LAX89LA309](https://openairdocs.org/ntsb/LAX89LA309.md): Hughes 269C · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Mar 30, 1989 · N58164 · Substantial damage
  > Improper flare by the student pilot, and improper supervision by the instructor pilot (CFI).
- [NTSB NYC88LA226](https://openairdocs.org/ntsb/NYC88LA226.md): Hughes 269A · Pittstown, NJ · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 1988 · N7028V · Substantial damage
  > The CFI was demonstrating a departure autorotation to a prospective student. A high rate of descent with low airspeed and low rotor RPM developed and the CFI attempted a power recovery with no results. The acft touched down hard, the skids collapsed and the…
- [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…

## 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" = 200))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41524&occurrence=200

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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.