# NTSB investigations: Lycoming IO-320 series, 1999

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 NYC00LA055](https://openairdocs.org/ntsb/NYC00LA055.md): Piper PA-30 · Morristown, NJ · Accident · No injuries · Limited investigation · Final report · Dec 19, 1999 · N7397Y · Substantial damage
  > The pilot's failure to obtain proper takeoff airspeed and his failure to follow published emergency procedures. Factors related to the accident were the pilot's inadequate preflight and water contamination of the fuel system.
- [NTSB DEN00LA013](https://openairdocs.org/ntsb/DEN00LA013.md): Bellanca 8KCAB · Grand Junction, CO · Accident · No injuries · Limited investigation · Final report · Oct 27, 1999 · N8707V · Substantial damage
  > A failure of the left main landing gear attachment (u-bolt) due to fatigue.
- [NTSB CHI99LA345](https://openairdocs.org/ntsb/CHI99LA345.md): Bellanca 8KCAB · Troy, MO · Accident · No injuries · Limited investigation · Final report · Sep 18, 1999 · N53895 · Substantial damage
  > the failure of the pilot to maintain directional control during landing. Factors in the accident were the proper alignment not attained by the pilot and the trees.
- [NTSB FTW99FA222](https://openairdocs.org/ntsb/FTW99FA222.md): Piper PA30 · Holdenville, OK · Accident · 1 fatal · Field investigation · Final report · Aug 16, 1999 · N7178Y · Destroyed
  > the pilot's failure to maintain aircraft control during takeoff initial climb. Factors were the loss of right engine power for undetermined reasons, and the pilot's lack of total experience in the make and model of aircraft.
- [NTSB FTW99LA154](https://openairdocs.org/ntsb/FTW99LA154.md): Piper PA-30B · Mcalester, OK · Accident · No injuries · Limited investigation · Final report · May 28, 1999 · N7991Y · Substantial damage
  > The pilot inadvertently stalling the airplane while attempting to avoid power lines. Factors were the loss of power on both the left and right engines as a result of water contamination in the fuel system, the pilot's inadequate preflight procedures, and the…
- [NTSB FTW99LA145](https://openairdocs.org/ntsb/FTW99LA145.md): Bellanca 8KCAB · Lufkin, TX · Accident · No injuries · Limited investigation · Final report · May 21, 1999 · N5500C · Substantial damage
  > The loss of control due to the separation of the left main landing gear as a result of the fatigue failure of the U-bolt which attaches the landing gear to the airframe.
- [NTSB ATL99LA091](https://openairdocs.org/ntsb/ATL99LA091.md): Piper PA-30 · Brooksville, FL · Accident · No injuries · Limited investigation · Final report · May 15, 1999 · N8055Y · Substantial damage
  > The certified flight instructor's failure to recover from a porpoise during landing and his failure to maintain directional control.
- [NTSB MIA99LA074](https://openairdocs.org/ntsb/MIA99LA074.md): Bellanca 7KCAB · Crystal River, FL · Accident · No injuries · Limited investigation · Final report · Feb 3, 1999 · N68573 · Substantial damage
  > The failure of the pilot to maintain directional control during takeoff and his failure to abort the takeoff after directional control was lost.
- [NTSB IAD99LA026](https://openairdocs.org/ntsb/IAD99LA026.md): Piper PA-30 · Fairfield, VA · Accident · Serious injuries · Limited investigation · Final report · Jan 5, 1999 · N3TH · Destroyed
  > The owner's failure to comply with the Airworthiness Directive and the subsequent fuel system filter blockage by ice leading to fuel starvation and power loss of the right engine. Additionally, the pilot's improper selection of the left auxiliary fuel tank…

## 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") = 1999
  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=1999

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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.