# NTSB investigations: Lycoming HIO-360 series, 1997

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 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 SEA98LA021](https://openairdocs.org/ntsb/SEA98LA021.md): Enstrom F-28F · John Day, OR · Accident · No injuries · Limited investigation · Final report · Dec 6, 1997 · N171HH · Substantial damage
  > a loss of engine power for undetermined reasons.
- [NTSB NYC98LA025](https://openairdocs.org/ntsb/NYC98LA025.md): Hughes 269B · Cleveland, OH · Accident · No injuries · Limited investigation · Final report · Oct 31, 1997 · N2273W · Substantial damage
  > the pilot's failure to recover from settling-with-power. Factors relating to the accident were: the pilot's downwind approach and low airspeed.
- [NTSB NYC98FA018](https://openairdocs.org/ntsb/NYC98FA018.md): Enstrom F-28C · Fairview, PA · Accident · No injuries · Field investigation · Final report · Oct 24, 1997 · N1944J · Substantial damage
  > inadequate maintenance, which led to detonation and a melted piston, and subsequent power loss.
- [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 ATL97LA114](https://openairdocs.org/ntsb/ATL97LA114.md): Hughes 269A · Dandridge, TN · Accident · No injuries · Limited investigation · Final report · Aug 10, 1997 · N7050D · Substantial damage
  > the pilot's failure to properly plan the approach for landing, which led to a loss of tail rotor authority and directional control, while close to the ground. The tailwind was a related factor.
- [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 ATL97LA067](https://openairdocs.org/ntsb/ATL97LA067.md): Hughes 269A · Lake Wales, FL · Accident · No injuries · Limited investigation · Final report · May 1, 1997 · N37754 · Substantial damage
  > loss of engine power for undetermined reason(s); and the flight instructor's improper flare and improper use of the flight controls, while flaring for an autorotative landing.
- [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 MIA97LA103](https://openairdocs.org/ntsb/MIA97LA103.md): Hughes TH-55 · Cullman, AL · Accident · Serious injuries · Limited investigation · Final report · Mar 28, 1997 · N818D · Substantial damage
  > a loss of engine power for undetermined reasons and the pilot-in-command's failure to maintain control of the helicopter. Factors in this accident were: an improper autorotation as a result of improper collective use and resulting failure to maintain main…
- [NTSB IAD97GA054](https://openairdocs.org/ntsb/IAD97GA054.md): Schweizer 269C · Cleveland, OH · Accident · No injuries · Final report · Mar 20, 1997 · N892CP · Substantial damage
  > The engine failure from the rod cap bolt being sheared and the separation of the number two cylinder separating from the crankcase.
- [NTSB MIA97LA084](https://openairdocs.org/ntsb/MIA97LA084.md): Hughes 269A · Homosassa, FL · Accident · No injuries · Limited investigation · Final report · Feb 7, 1997 · N9061R · Substantial damage
  > the unqualified person's poor judgment, by taking the helicopter without the owner's permission and attempting an unauthorized flight at night; and his failure (or inability) to maintain control the helicopter. Darkness was a related factor.

## 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 year(c."eventDate") = 1997
  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&year=1997

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