# NTSB investigations, PA: Abrupt maneuver

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 ERA21FA334](https://openairdocs.org/ntsb/ERA21FA334.md): North American SNJ-2 · Wilkes-Barre, PA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N52900 · Destroyed
  > A partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…
- [NTSB ERA20FA074](https://openairdocs.org/ntsb/ERA20FA074.md): Robinson R66 · Mechanicsburg, PA · Accident · 2 fatal · Class 3 · Field · Final report · Jan 10, 2020 · N450MC · Destroyed
  > A severe left roll excursion after the onset of pitch and roll oscillations, which were not arrested by the pilot for undetermined reasons. This resulted in main rotor blade contact with the airframe and a subsequent inflight breakup of the helicopter.
- [NTSB GAA18CA083](https://openairdocs.org/ntsb/GAA18CA083.md): Michael Adamczyk Zenith CH750 · Franklin, PA · Accident · No injuries · Data collection · Final report · Dec 9, 2017 · N750AD · Substantial damage
  > The pilot’s excessive application of aft stick during takeoff, which resulted in an aerodynamic stall. Contributing to this accident was the pilot’s inexperience in the airplane.
- [NTSB ERA17LA328](https://openairdocs.org/ntsb/ERA17LA328.md): Piper J3C · Hanover Township, PA · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 2017 · N38365 · Substantial damage
  > The pilot's failure to maintain roll control while maneuvering, which resulted in a collision with trees and terrain.
- [NTSB ERA17FA017](https://openairdocs.org/ntsb/ERA17FA017.md): Piper PA28 · Austin, PA · Accident · 3 fatal · Field investigation · Final report · Oct 16, 2016 · C-GYSN · Destroyed
  > The pilot's loss of control while maneuvering in night instrument conditions that included light-to-heavy rain with severe turbulence, updrafts and downdrafts, and hail. Contributing to the accident was the pilot experiencing spatial disorientation, his lack…
- [NTSB GAA16CA315](https://openairdocs.org/ntsb/GAA16CA315.md): Seela Gerald L Glasair SH 2F · State College, PA · Accident · No injuries · Data collection · Final report · Jun 8, 2016 · N666GJ · Substantial damage
  > The pilot's hard landing in gusting wind conditions. Contributing to the accident were the pilot's unfamiliarity with the newly purchased airplane's throttle resulting in an unstable approach, and the pilot's ability to compensate for the wind.
- [NTSB ERA15LA311](https://openairdocs.org/ntsb/ERA15LA311.md): Thomas A Siminski Zenith CH 750 · Allentown, PA · Accident · Serious injuries · Limited investigation · Final report · Aug 14, 2015 · N1750Z · Substantial damage
  > A partial loss of engine power due to the No. 1 spark plug being liberated from the cylinder head due to the stripped threads in the cylinder head. Contributing to the accident was the pilot’s decision to attempt to return to the airport while at a low…
- [NTSB ERA14CA463](https://openairdocs.org/ntsb/ERA14CA463.md): Beech D55 · Hazleton, PA · Accident · No injuries · Data collection · Final report · Sep 27, 2014 · N222JJ · Substantial damage
  > The brake application for unknown reasons resulting in rupture of the left main landing gear tire and tube, and subsequent loss of directional control.
- [NTSB ERA13LA263](https://openairdocs.org/ntsb/ERA13LA263.md): Wilson William M Cricket MC12 · Doylestown, PA · Accident · 1 fatal · Limited investigation · Final report · Jun 1, 2013 · N2SZ · Substantial damage
  > The pilot's failure to abort the takeoff after detecting the airplane’s degraded performance. Contributing to the accident were the likely loss of power from the left engine for reasons that could not be determined during the postaccident examination of the…
- [NTSB ERA12LA557](https://openairdocs.org/ntsb/ERA12LA557.md): Piper PA-31-325 · Washington, PA · Accident · No injuries · Limited investigation · Final report · Sep 9, 2012 · N3591P · Substantial damage
  > The airplane’s encounter with a flock of geese during takeoff, which resulted in the airplane’s hard impact with the runway while the pilot maneuvered in an attempt to avoid the geese.
- [NTSB NYC08FA189](https://openairdocs.org/ntsb/NYC08FA189.md): Grumman American AA-1C · Philadelphia, PA · Accident · 2 fatal · Field investigation · Final report · May 22, 2008 · N9555U · Destroyed
  > The flight instructor's failure to maintain airspeed which resulted in an inadvertent stall.

## 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 c."eventStateOrRegion" = 'PA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '270' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/270/sequence?state=PA

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