# NTSB investigations: Lycoming IO-540 series, CT

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 ERA25LA215](https://openairdocs.org/ntsb/ERA25LA215.md): Piper PA32-300 · Branford, CT · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2025 · N2242Z · Substantial damage
  > Maintenance personnel's improper installation and inspection of the crankshaft gear bolt during major overhaul, which resulted in the crankshaft gear disengaging from the accessory gears which led to a total loss of engine power.
- [NTSB ERA10LA113](https://openairdocs.org/ntsb/ERA10LA113.md): Foster John Glasair III · Oxford, CT · Accident · 1 fatal · Limited investigation · Final report · Jan 13, 2010 · N540WF · Substantial damage
  > The pilot's failure to maintain a proper approach path during visual conditions at dusk, which resulted in an in-flight collision with power lines.
- [NTSB NYC04LA106](https://openairdocs.org/ntsb/NYC04LA106.md): Cessna 182S · Plainville, CT · Accident · No injuries · Limited investigation · Final report · Apr 9, 2004 · N518CR · Substantial damage
  > The failure of the elevator servo which resulted in restricted elevator movement and the pilot's inability to initiate a landing flare.
- [NTSB IAD02LA069](https://openairdocs.org/ntsb/IAD02LA069.md): Cessna 182T · Plainville, CT · Accident · No injuries · Limited investigation · Final report · Jul 7, 2002 · N3541A · Substantial damage
  > The pilot's improper recovery from a bounced landing.
- [NTSB IAD01FA070](https://openairdocs.org/ntsb/IAD01FA070.md): Piper PA-32R-301 · Greenwich, CT · Accident · 1 fatal · Field investigation · Final report · Jun 22, 2001 · N13VH · Destroyed
  > The pilot's failure to maintain control of the airplane while maneuvering in instrument meteorological conditions, due to spatial disorientation. Factors in the accident were the fog, and the pilot's use of a sedating medication.
- [NTSB NYC00LA111](https://openairdocs.org/ntsb/NYC00LA111.md): Piper PA-32R-301 · East Haddam, CT · Accident · No injuries · Limited investigation · Final report · Mar 30, 2000 · N8041B · Substantial damage
  > The private pilots failure to obtain the proper touchdown point and the CFI's delay in remedial action.
- [NTSB NYC96LA064](https://openairdocs.org/ntsb/NYC96LA064.md): Piper PA-32-300 · Stratford, CT · Accident · No injuries · Limited investigation · Final report · Feb 16, 1996 · N8137D · Substantial damage
  > inadequate visual lookout by the pilot and the vehicle operator, resulting in their failure to see and avoid each other.
- [NTSB NYC91FA145](https://openairdocs.org/ntsb/NYC91FA145.md): Piper PA-32RT-300 · Wallingford, CT · Accident · 1 fatal · Field investigation · Final report · May 31, 1991 · N36069 · Destroyed
  > The pilot attempting a VFR flight in adverse weather conditions, at an altitude that was insufficient to clear trees along his route of flight. Factors related to the accident were the pilot's lack of instrument rating, and his overconfidence to fly in…
- [NTSB NYC85LA128](https://openairdocs.org/ntsb/NYC85LA128.md): Piper PA-32R-301 · Ellington, CT · Accident · No injuries · Limited investigation · Final report · May 19, 1985 · N300UM · Substantial damage
  > The acft colldied with a stump during a landing attempt at Ellington arpt. The acft had touched dwn about 25 ft short of the rwy. The left aileron was damaged but the acft made a go-around & returned to westover air base & landed. According to the plt,…
- [NTSB NYC85LA021](https://openairdocs.org/ntsb/NYC85LA021.md): Piper PA-32-300 · Oxford, CT · Accident · No injuries · Limited investigation · Final report · Nov 4, 1984 · N38996 · Substantial damage
  > After entering the traffic pattern for the selected runway, plt was informed of surface wind conditions and elected to continue and execute a downwind landing. Upon touchdown, plt raised flaps to assist braking action. During roll-out the plt decided…

## 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" = 'CT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41530&state=CT

---
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.