# NTSB investigations: Lycoming IO-320 series, 1991

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 DEN92LA019](https://openairdocs.org/ntsb/DEN92LA019.md): Bellanca 7KCAB · Aurora, CO · Accident · No injuries · Limited investigation · Final report · Dec 24, 1991 · N53883 · Substantial damage
  > The pilot failed to maintain control of the aircraft. A factor was: improper supervision by the flight instructor.
- [NTSB ATL92LA001](https://openairdocs.org/ntsb/ATL92LA001.md): Champion 7KCAB · Cartersville, GA · Accident · No injuries · Limited investigation · Final report · Oct 3, 1991 · N5282X · Substantial damage
  > The failure of the pilot to maintain control of the aircraft during the landing roll and the improper remedial action taken by the pilot to regain control of the airplane.
- [NTSB DEN91FA126](https://openairdocs.org/ntsb/DEN91FA126.md): Piper PA-30 · Ft. Carson, CO · Accident · 1 fatal · Field investigation · Final report · Sep 11, 1991 · N7730Y · Destroyed
  > The loss of power to both engines due first to fuel starvation followed by fuel exhaustion, the pilot's failure to refuel, and the inadvertent stall. A factor was: the pilot's improper use of powerplant controls.
- [NTSB LAX91LA293](https://openairdocs.org/ntsb/LAX91LA293.md): Bellanca 8KCAB · Shoshone, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 1991 · N29BB · Destroyed
  > An electrical short of the battery cable.
- [NTSB NYC91LA172](https://openairdocs.org/ntsb/NYC91LA172.md): Bellanca 8KCAB · Pomeroy, OH · Accident · Serious injuries · Limited investigation · Final report · Jul 5, 1991 · N68560 · Substantial damage
  > An inflight collision with terrain after the pilot became incapacitated due to an allergic reaction to bee stings. A factor related to the accident was the failure of the pilot to recognize the situation in time to make the recovery.
- [NTSB CHI91LA209](https://openairdocs.org/ntsb/CHI91LA209.md): Champion 7KCAB · Hill City, SD · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1991 · N1844G · Substantial damage
  > Poor preflight planning by the pilot and over confidence in the aircrafts ability. Factors related to the accident were a high density altitude and a proper climb rate not attained.
- [NTSB CHI91LA165](https://openairdocs.org/ntsb/CHI91LA165.md): Piper PA-30 · Big Rapids, MI · Accident · No injuries · Limited investigation · Final report · May 23, 1991 · N7209Y · Substantial damage
  > Excessive application of the flight controls by the student pilot. A factor related to the accident is delayed remedial action by the flight instructor.
- [NTSB SEA91FA073](https://openairdocs.org/ntsb/SEA91FA073.md): Piper PA-30 · Butte, MT · Accident · 1 fatal · Field investigation · Final report · Mar 29, 1991 · N7133Y · Substantial damage
  > Inadequate inflight decisions, fuel starvation, and failure to perform alternative IFR approach procedures. Factors include operation with known deficiencies in equipment, disorientation, and lack of familiarity with the geographic area.
- [NTSB NYC91LA085](https://openairdocs.org/ntsb/NYC91LA085.md): Cessna 172P · Miamisburg, OH · Accident · Minor injuries · Limited investigation · Final report · Mar 9, 1991 · N64937 · Substantial damage
  > The instructor pilot's failure to maintain control of the airplane during landing in a strong crosswind.

## 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") = 1991
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41509'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41509&year=1991

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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.