# NTSB investigations: Lycoming IO-720 series: In flight collision with object

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 FTW97LA105](https://openairdocs.org/ntsb/FTW97LA105.md): Piper PA-36-375 · Danevang, TX · Accident · No injuries · Limited investigation · Final report · Feb 18, 1997 · N7167E · Substantial damage
  > The utility's company failure to notify affected parties of the downed line, and the pilot's failure to maintain clearance with the downed wire. A factor was the downed wire.
- [NTSB CHI92DCD03](https://openairdocs.org/ntsb/CHI92DCD03.md): Piper PA-36-375 · Deloit, IA · Accident · Minor injuries · Final report · Apr 29, 1992 · N3986E · Substantial damage
  > Inadequate visual lookout by the pilot in command while performing aerial application maneuvers. A factor in the accident is the pilot's diverted attention.
- [NTSB DEN91FA039](https://openairdocs.org/ntsb/DEN91FA039.md): Piper PA-24-400 · Snowmass, CO · Accident · 2 fatal · Field investigation · Final report · Feb 8, 1991 · N8510P · Destroyed
  > The pilot's failure to maintain a proper altitude in mountainous terrain.
- [NTSB SEA88LA174](https://openairdocs.org/ntsb/SEA88LA174.md): Piper PA-24-400 · Gasquet, CA · Accident · No injuries · Limited investigation · Final report · Sep 9, 1988 · N8541P · Substantial damage
  > The pilot stated that as he turned final approach, intense sunglare was encountered. The plt executed a go-around 'in the blind,' and collided with trees in approach path. The acft remained flyable and the pilot diverted to medford, Oregon.
- [NTSB SEA88LA018](https://openairdocs.org/ntsb/SEA88LA018.md): Piper PA-24-400 · Winnemucca, NV · Accident · No injuries · Limited investigation · Final report · Nov 11, 1987 · N400TT · Substantial damage
  > The plt was attempting to land close to the approach end of the rwy. He made the approach with full flaps at 85 mph the rate of descent became excessive and before recovery was affected the acft collided with a fence near the rwy threshold. The acc site was…
- [NTSB CHI86LA153](https://openairdocs.org/ntsb/CHI86LA153.md): Piper PA-36-375 · Breckenridge, MN · Accident · No injuries · Limited investigation · Final report · Jun 13, 1986 · N6184A · Substantial damage
  > Aircraft collided with a truck while engaged in aerial application work. Pilot was unable to maintain control and the aircraft collided with terrain after an uncontrolled descent. Investigation revealed that the aileron had separated due to the collision.
- [NTSB MKC84LA176](https://openairdocs.org/ntsb/MKC84LA176.md): Piper PA-36-375 · Storm Lake, IA · Accident · Minor injuries · Limited investigation · Final report · Jun 19, 1984 · N3953E · Substantial damage
  > While on the 2nd swath run, the plt maneuvered the acft to cross under power lines bordering the edge of the corn field. He said he misjudged the distance to clear the power lines. The vertical stabilizer & rudder struck the lines & were torn from the acft.…
- [NTSB FTW82FRJ12](https://openairdocs.org/ntsb/FTW82FRJ12.md): Piper PA-36-375 · Wildsville, LA · Accident · 1 fatal · Final report · Jun 21, 1982 · N90297 · Destroyed
  > The pilot took off on a local flight to spray a bean field. About 1000 ft from the end of the field was a 300 ft radio tower. The aircraft was observed to circle the bean field and circle the radio tower twice. During a procedure turn, the aircraft struck the…

## 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 ('41546')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41546&occurrence=220

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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.