# NTSB investigations: Lycoming IO-540-AE1A5

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.

Page 4 of 4 · 160 cases

## Cases, newest first

- [NTSB WPR09FA076](https://openairdocs.org/ntsb/WPR09FA076.md): Robinson Helicopter R44 II · West Valley City, UT · Accident · Serious injuries · Field investigation · Final report · Jan 9, 2009 · N168SH · Substantial damage
  > The pilot’s inadvertent VFR flight into IMC conditions, which resulted in his spatial disorientation and loss of control of the helicopter. Also causal was the flight instructor’s delay in taking remedial action.
- [NTSB DFW08FA218](https://openairdocs.org/ntsb/DFW08FA218.md): Robinson R44 II · Ridgedale, MO · Accident · 2 fatal · Field investigation · Final report · Aug 29, 2008 · N41411 · Destroyed
  > An in-flight loss of control for undetermined reasons.
- [NTSB DFW08TA092](https://openairdocs.org/ntsb/DFW08TA092.md): Robinson R44 · Topeka, KS · Accident · No injuries · Final report · Apr 5, 2008 · N402PD · Substantial damage
  > A malfunctioning magneto, resulting in a high engine rpm and low rotor warning indications. A contributing factor was the impact with a light pole, during the precautionary landing.
- [NTSB NYC08CA140](https://openairdocs.org/ntsb/NYC08CA140.md): Robinson R44 · Montgomery, NY · Accident · No injuries · Data collection · Final report · Mar 17, 2008 · N3027Y · Substantial damage
  > The pilot's loss of control during takeoff.
- [NTSB LAX08CA057](https://openairdocs.org/ntsb/LAX08CA057.md): Robinson R44 II · Bullhead City, AZ · Accident · No injuries · Data collection · Final report · Feb 3, 2008 · N44NV · Substantial damage
  > The pilot's misjudged landing flare, inadequate bounced landing recovery, and failure to maintain directional control during a bounced landing that resulted in the tail rotor blades colliding with a hangar. Contributing to the accident was the burned out…
- [NTSB CHI08CA023](https://openairdocs.org/ntsb/CHI08CA023.md): Robinson R44 Raven II · Morrison, MO · Accident · No injuries · Data collection · Final report · Oct 19, 2007 · N3246H · Destroyed
  > Loss of control on the ground due to aircraft control not being maintained by the pilot. Contributing factors were the gusting winds and the uneven ground.
- [NTSB SEA08CA002](https://openairdocs.org/ntsb/SEA08CA002.md): Robinson R44 II · Lake Powell, UT · Accident · Minor injuries · Data collection · Final report · Oct 2, 2007 · N644BS · Substantial damage
  > The pilot's inadequate preflight inspection and failure to remove a tie-down strap before departure.
- [NTSB NYC07CA236](https://openairdocs.org/ntsb/NYC07CA236.md): Robinson R44 II · Nashville, TN · Accident · No injuries · Data collection · Final report · Sep 22, 2007 · N3184T · Substantial damage
  > The pilot's failure to maintain control of the helicopter.
- [NTSB MIA07CA107](https://openairdocs.org/ntsb/MIA07CA107.md): Robinson R-44-II · Isla Grande, PR · Accident · No injuries · Data collection · Final report · Mar 16, 2007 · N72PK · Substantial damage
  > The pilot's inadvertent encounter with a loss of tail rotor effectiveness which resulted in damage to the helicopter during the subsequent hard landing.
- [NTSB MIA07LA059](https://openairdocs.org/ntsb/MIA07LA059.md): Robinson R-44-II · Miami, FL · Accident · No injuries · Limited investigation · Final report · Mar 15, 2007 · N196DM · Substantial damage
  > The pilot's failure to maintain sufficient rotor rpm during an autorotative landing, which resulted in a hard landing and separation of the tailboom.

## 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.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&page=4

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