# NTSB investigations, 1989: Altitude deviation,uncontrolled

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 MKC90LA001](https://openairdocs.org/ntsb/MKC90LA001.md): Alon Aircoupe · Greers Ferry, AR · Accident · No injuries · Limited investigation · Final report · Oct 1, 1989 · CGODM · Substantial damage
  > The pilot's misjudgement of performance data which resulted in the inability to gain sufficient airspeed for takeoff.
- [NTSB ANC89LA112](https://openairdocs.org/ntsb/ANC89LA112.md): Cessna 185F · Dillingham, AK · Accident · No injuries · Limited investigation · Final report · Jul 1, 1989 · N6305E · Substantial damage
  > Improper planning/decision by the pilot & a strong downdraft.
- [NTSB SEA89LA110](https://openairdocs.org/ntsb/SEA89LA110.md): Cessna 172 · Chemult, OR · Accident · Serious injuries · Limited investigation · Final report · Jun 12, 1989 · N1365E · Destroyed
  > Improper inflight planning/decision by the pilot, which resulted in a sudden altitude deviation, and his delay in initiating remedial action to maintain clearance from the trees. Contributing factors were the downdrafts, high density altitude, the pilot…
- [NTSB SEA89LA105](https://openairdocs.org/ntsb/SEA89LA105.md): Piper PA-32-300 · Skagway, AK · Accident · No injuries · Limited investigation · Final report · Jun 8, 1989 · N7994F · Substantial damage
  > The failure of the pilot to use proper inflight planning to identify wind conditions (downdrafts) during the flight. As a result, the pilot was unable to maintain altitude and the airplane collided with mountainous terrain.
- [NTSB ANC89LA085](https://openairdocs.org/ntsb/ANC89LA085.md): Cessna 180-J · Glennallen, AK · Accident · No injuries · Limited investigation · Final report · Jun 5, 1989 · N52010 · Substantial damage
  > Pilot used poor judgement and planning for his takeoff.
- [NTSB ANC89FA049](https://openairdocs.org/ntsb/ANC89FA049.md): Cessna A-185-F · Puntilla Lake, AK · Accident · Minor injuries · Field investigation · Final report · Mar 6, 1989 · N1292F · Substantial damage
  > The pilot's failure to obtain an adequate airspeed, the turn to reverse course maneuver performed at the reduced airspeed and poor preflight planning. Contributing to the accident were the mountainous terrain and the downdraft conditions.
- [NTSB NYC89FA093](https://openairdocs.org/ntsb/NYC89FA093.md): Piper PA-31-350 · Toms River, NJ · Accident · No injuries · Field investigation · Final report · Mar 2, 1989 · N40978 · Substantial damage
  > Failure of the pilot to maintain airspeed and control of the aircraft, and his exceeding the design stress limits of the aircraft. Factors related to the accident were: autoplt malfunction due to improper installation by maintenance personnel and the pilot's…

## 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") = 1989
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 110)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=110&year=1989

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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.