# NTSB investigations, 1990, NH

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 NYC91LA052](https://openairdocs.org/ntsb/NYC91LA052.md): Beech 35-C33 · Concord, NH · Accident · No injuries · Limited investigation · Final report · Dec 15, 1990 · N8696Q · Substantial damage
  > The improper starting procedure used by the pilot.
- [NTSB NYC91LA029](https://openairdocs.org/ntsb/NYC91LA029.md): Piper PA-32-301R · Alton, NH · Accident · 1 fatal · Limited investigation · Final report · Nov 16, 1990 · N8473H · Substantial damage
  > The total loss of engine power for undetermined reasons. Contributing to the severity of the accident was the unsuitable terrain in which the forced landing was made.
- [NTSB NYC91DNC02](https://openairdocs.org/ntsb/NYC91DNC02.md): Marier Early Bird Jenny · Concord, NH · Accident · Serious injuries · Final report · Nov 3, 1990 · N7165Y · Destroyed
  > The failure of the pilot to maintain adequate airspeed, which resulted in an inadvertent stall spin. A factor related to the accident was: the pilot's lack of experience in the make and model of aircraft.
- [NTSB NYC91FA001](https://openairdocs.org/ntsb/NYC91FA001.md): Cessna 172P · Gorham, NH · Accident · 3 fatal · Field investigation · Final report · Oct 2, 1990 · N98438 · Destroyed
  > Improper planning/decision by the pilot, and his failure to maintain proper altitude while flying over mountainous terrain. Factors related to the accident were: darkness, mountainous terrain, and pilot fatigue.
- [NTSB NYC90DNC01](https://openairdocs.org/ntsb/NYC90DNC01.md): Cessna 180E · Kingston, NH · Accident · Serious injuries · Final report · Sep 26, 1990 · N2620Y · Destroyed
  > An inflight collision with water while maneuvering for a forced landing. A factor to the accident was a power loss due to the pilot's improper use of the mixture control.
- [NTSB NYC90LA228](https://openairdocs.org/ntsb/NYC90LA228.md): Piper PA-12 · Franconia, NH · Accident · Minor injuries · Limited investigation · Final report · Sep 23, 1990 · N2770M · Substantial damage
  > The landing of the airplane in unsuitable terrain, due to the mechanical failure of the engine center muffler baffle, which blocked the exhaust flow, resulting in a loss of power.
- [NTSB NYC90LA202](https://openairdocs.org/ntsb/NYC90LA202.md): Waco DSO · Keene, NH · Accident · No injuries · Limited investigation · Final report · Aug 28, 1990 · N613N · Destroyed
  > Aborted takeoff with insufficient room available to stop. The pilot's delayed decision to abort the takeoff was a factor.
- [NTSB NYC90LA188](https://openairdocs.org/ntsb/NYC90LA188.md): Cessna 150M · Rochester, NH · Accident · No injuries · Limited investigation · Final report · Aug 4, 1990 · N45238 · Substantial damage
  > Undetermined.
- [NTSB NYC90LA069](https://openairdocs.org/ntsb/NYC90LA069.md): Cessna 172P · Sunapee Lake, NH · Accident · No injuries · Limited investigation · Final report · Feb 9, 1990 · N65057 · Substantial damage
  > Failure of the pilot to maintain adequate altitude above the lake, which resulted in unplanned contact with its frozen surface.

## 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") = 1990
  AND c."eventStateOrRegion" = 'NH' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=NH&year=1990

---
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.