# NTSB investigations: Piper PA-11: Loss of control in flight

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 ANC25LA103](https://openairdocs.org/ntsb/ANC25LA103.md): Piper PA-11 · Lake Louise, AK · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 10, 2025 · N5025H · Substantial damage
  > The pilot’s encounter with gusting crosswind conditions during takeoff, which resulted in a loss of control and subsequent impact with terrain.
- [NTSB GAA16CA495](https://openairdocs.org/ntsb/GAA16CA495.md): Piper PA 11 · Grand Isle, VT · Accident · No injuries · Data collection · Final report · Sep 19, 2016 · N4681M · Substantial damage
  > The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during a simulated engine failure and forced landing with a tailwind, which resulted in an aerodynamic stall.
- [NTSB CEN16LA310](https://openairdocs.org/ntsb/CEN16LA310.md): Piper PA-11 · Indianola, IA · Accident · 2 fatal · Limited investigation · Final report · Aug 5, 2016 · N4707M · Destroyed
  > The pilot's inadequate preflight planning, which resulted in the airplane being operated above its maximum gross weight, degraded its climb performance, and led to an aerodynamic stall during the initial climb.
- [NTSB ANC13CA043](https://openairdocs.org/ntsb/ANC13CA043.md): Piper PA-11 · Soldotna, AK · Accident · No injuries · Data collection · Final report · May 5, 2013 · N4772M · Substantial damage
  > The flight instructor's inadequate supervision of the student pilot during takeoff, which resulted in a loss of control.
- [NTSB ANC10FA076](https://openairdocs.org/ntsb/ANC10FA076.md): Piper PA-11 · Willow, AK · Accident · 2 fatal · Field investigation · Final report · Aug 25, 2010 · N78831 · Substantial damage
  > The pilot’s failure to maintain adequate airspeed, which resulted in an aerodynamic stall/spin and impact with the ground.
- [NTSB ERA09LA503](https://openairdocs.org/ntsb/ERA09LA503.md): Piper PA-11 · Quincy, FL · Accident · 1 fatal · Limited investigation · Final report · Sep 7, 2009 · N4778M · Substantial damage
  > The pilot’s improper use of flight controls following a partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot’s impairment from the use of an over-the-counter sedating antihistamine.
- [NTSB LAX08CA275](https://openairdocs.org/ntsb/LAX08CA275.md): Piper PA-11 · Sheridan, WY · Accident · No injuries · Data collection · Final report · Aug 21, 2008 · N1106T · Substantial damage
  > The pilot's inadequate compensation for the existing gusty wind conditions and likely windshear encounter and his failure to maintain an adequate airspeed that resulted in a stall/mush.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7101102', '7101106')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '240' 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/240/sequence?model=7101102

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