# NTSB investigations: Lycoming IO-540-AE1A5, 2012

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 WPR13CA064](https://openairdocs.org/ntsb/WPR13CA064.md): Robinson Helicopter R44 II · Roosevelt Lake, AZ · Accident · Serious injuries · Data collection · Final report · Dec 7, 2012 · N557AC · Substantial damage
  > The pilot's visual disorientation, which resulted in a collision with the lake.
- [NTSB WPR13FA054](https://openairdocs.org/ntsb/WPR13FA054.md): Robinson Helicopter R44 II · Corona, CA · Accident · 1 fatal · Field investigation · Final report · Nov 26, 2012 · N4204A · Substantial damage
  > The pilot's failure to maintain clearance between the helicopter’s main rotor blades and the metal canopy of a fuel island.
- [NTSB CEN13CA053](https://openairdocs.org/ntsb/CEN13CA053.md): Robinson Helicopter R44 II · Bryan, TX · Accident · No injuries · Data collection · Final report · Nov 6, 2012 · N131AA · Substantial damage
  > The pilot’s over-correction in an attempt to stabilize the helicopter during liftoff.
- [NTSB CEN13FA010](https://openairdocs.org/ntsb/CEN13FA010.md): Robinson Helicopter R44 II · Blanco, TX · Accident · 3 fatal · Field investigation · Final report · Oct 12, 2012 · N474FA · Substantial damage
  > The pilot's loss of helicopter control as a result of spatial disorientation due to dark night conditions and marginal visual flight rules weather conditions.
- [NTSB CEN12CA643](https://openairdocs.org/ntsb/CEN12CA643.md): Robinson Helicopter R44 II · Slaton, TX · Accident · No injuries · Data collection · Final report · Sep 18, 2012 · N957R · Substantial damage
  > The pilot’s misalignment of the helicopter during landing, which resulted in the helicopter’s fall from a raised platform.
- [NTSB WPR12LA267](https://openairdocs.org/ntsb/WPR12LA267.md): Robinson Helicopter R44 II · Scottsdale, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2012 · N808WH · Substantial damage
  > The flight instructor’s failure to maintain adequate rotor rpm during a practice autorotation, which resulted in a loss of helicopter control and subsequent hard landing.
- [NTSB CEN12LA359](https://openairdocs.org/ntsb/CEN12LA359.md): Robinson Helicopter R44 II · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Jun 10, 2012 · N744JS · Substantial damage
  > The sudden decrease in headwind during takeoff in a gusty wind and near a passing train, which resulted in a loss of lift and main rotor rpm. Contributing to the accident was the pilot's decision to operate the helicopter near its maximum performance…
- [NTSB WPR12CA162](https://openairdocs.org/ntsb/WPR12CA162.md): Robinson Helicopter R44 II · Henderson, NV · Accident · No injuries · Data collection · Final report · Apr 9, 2012 · N55NZ · Substantial damage
  > The pilot did not maintain directional and yaw control of the helicopter during approach and landing, which resulted in a dynamic rollover.
- [NTSB ANC12CA018](https://openairdocs.org/ntsb/ANC12CA018.md): Robinson Helicopter R44 II · Beluga, AK · Accident · No injuries · Data collection · Final report · Jan 21, 2012 · N4510T · Substantial damage
  > Ground personnel's movement of cargo in windy conditions, which allowed a previously secured cargo sack to blow into the main rotor blades.

## 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") = 2012
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41899'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41899&year=2012

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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.