# NTSB investigations: Lycoming IO-540 series, CO

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 CEN25LA398](https://openairdocs.org/ntsb/CEN25LA398.md): Piper PA-60-601P · Del Norte, CO · Accident · No injuries · Class 4 · Limited · Final report · Sep 27, 2025 · N3635A · Substantial damage
  > The loss of directional control during landing roll due to a flat tire.
- [NTSB CEN23FA285](https://openairdocs.org/ntsb/CEN23FA285.md): Piper PA-60-601P · Burlington, CO · Accident · 1 fatal · Class 3 · Field · Final report · Jul 6, 2023 · N100PB · Destroyed
  > The pilot’s visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control in flight and subsequent impact with terrain.
- [NTSB CEN22LA065](https://openairdocs.org/ntsb/CEN22LA065.md): Piper PA-24-250 · Delta, CO · Accident · No injuries · Class 4 · Limited · Final report · Dec 8, 2021 · N543AS · Substantial damage
  > Fuel starvation resulting in a loss of engine power.
- [NTSB CEN18LA348](https://openairdocs.org/ntsb/CEN18LA348.md): Piper PA32R · Falcon, CO · Accident · No injuries · Limited investigation · Final report · Aug 23, 2018 · N2880W · Substantial damage
  > The pilot's decision to depart with an inoperative left magneto, which resulted in degraded climb performance in high-density altitude conditions and a subsequent emergency landing.
- [NTSB CEN14CA318](https://openairdocs.org/ntsb/CEN14CA318.md): Meyer Geoffrey A Goat · Wolcott, CO · Accident · No injuries · Data collection · Final report · Jun 16, 2014 · N987SL · Substantial damage
  > The failure of an oil line leading to the oil pressure transducer which resulted in oil starvation and subsequent loss of engine power.
- [NTSB CEN13CA435](https://openairdocs.org/ntsb/CEN13CA435.md): Cessna 182S · Steamboat Springs, CO · Accident · No injuries · Data collection · Final report · Jul 24, 2013 · N5467C · Substantial damage
  > The pilot's delay in reacting to the adverse wind conditions.
- [NTSB CEN13FA182](https://openairdocs.org/ntsb/CEN13FA182.md): Aero Commander 500B · Broomfield, CO · Accident · Minor injuries · Field investigation · Final report · Mar 1, 2013 · N93AA · Substantial damage
  > Loss of engine power due to fuel exhaustion. Contributing to the accident was the failure of the fuel gauge to indicate the actual amount of fuel on board the airplane and the design of the airplane's fuel system, which precluded a visual confirmation of the…
- [NTSB CEN11CA492](https://openairdocs.org/ntsb/CEN11CA492.md): Cessna 182S · Meeker, CO · Accident · No injuries · Data collection · Final report · Jul 19, 2011 · N314FR · Substantial damage
  > The pilot's inadvertent flight into a downdraft, which resulted in an in-flight collision with trees.
- [NTSB CEN11CA325](https://openairdocs.org/ntsb/CEN11CA325.md): Robinson Helicopter R44 II · Golden, CO · Accident · No injuries · Data collection · Final report · May 8, 2011 · N921JM · Substantial damage
  > The pilot’s decision to operate the helicopter at a high density altitude near terrain, which resulted in a settling with power condition.
- [NTSB CEN10LA487](https://openairdocs.org/ntsb/CEN10LA487.md): Shpakow Thomas SA 750 · Brighton, CO · Accident · No injuries · Limited investigation · Final report · Aug 14, 2010 · N28KT · Substantial damage
  > The radio-controlled airplane operator’s decision to maneuver his airplane outside of the designated operating area, resulting in a collision with a bi-plane. Contributing to the accident was the lack of a formally designated spotter.
- [NTSB CEN10FA162](https://openairdocs.org/ntsb/CEN10FA162.md): Maule M-6-235 · Bennett, CO · Accident · No injuries · Field investigation · Final report · Jan 30, 2010 · N7613X · Substantial damage
  > The pilot’s failure to maintain clearance from a utility line while maneuvering.
- [NTSB CEN09CA264](https://openairdocs.org/ntsb/CEN09CA264.md): Cessna 182T · Rangely, CO · Accident · No injuries · Data collection · Final report · Apr 22, 2009 · N345TJ · Substantial damage
  > The pilot's failure to maintain directional control while landing with a crosswind.
- [NTSB DFW08FA233](https://openairdocs.org/ntsb/DFW08FA233.md): Piper Aerostar PA-60-602P · Kremmling, CO · Accident · 2 fatal · Field investigation · Final report · Sep 19, 2008 · N97TS · Destroyed
  > The pilot’s failure to maintain aircraft control, resulting in an aerodynamic stall and spin.
- [NTSB DEN08FA141](https://openairdocs.org/ntsb/DEN08FA141.md): Cessna 182T · Georgia Pass, CO · Accident · 4 fatal · Field investigation · Final report · Aug 15, 2008 · N487TC · Destroyed
  > The pilot's failure to maintain aircraft control after inadvertantly encountering instrument meteorological conditions. Contributing to the accident were the pilot's failure to obtain a weather brief and the severe weather conditions.
- [NTSB DEN05FA066](https://openairdocs.org/ntsb/DEN05FA066.md): Piper PA-32RT-300 · Broomfield, CO · Accident · 1 fatal · Field investigation · Final report · Apr 7, 2005 · N3015L · Destroyed
  > the pilot's failure to maintain aircraft control during landing. Contributing factor's included the quartering tailwind, and the pilot's inadequate in-flight decision making.
- [NTSB DEN01LA043](https://openairdocs.org/ntsb/DEN01LA043.md): Maule M-7-235C · Durango, CO · Accident · No injuries · Limited investigation · Final report · Jan 19, 2001 · N246SV · Substantial damage
  > failure by the pilot to maintain directional control of the aircraft during landing roll. A factor was the pilot's lack of experience in aircraft make and model.
- [NTSB DEN00LA158](https://openairdocs.org/ntsb/DEN00LA158.md): Maule MX-7-235 · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Aug 29, 2000 · N111KD · Substantial damage
  > the pilot's failure to maintain directional control during landing roll. A contributing factor was the crosswind.
- [NTSB DEN99LA026](https://openairdocs.org/ntsb/DEN99LA026.md): Piper PA-46-350P · Granby, CO · Accident · No injuries · Limited investigation · Final report · Dec 15, 1998 · N9255B · Substantial damage
  > The in-flight encounter with clear air turbulence during descent.
- [NTSB FTW96LA369](https://openairdocs.org/ntsb/FTW96LA369.md): Piper PA-32R-300 · Salida, CO · Accident · No injuries · Limited investigation · Final report · Sep 2, 1996 · N7640F · Substantial damage
  > total failure of the induction air control linkage (bolt), which allowed the alternate air door to close and starve the engine of air.
- [NTSB DEN92LA065](https://openairdocs.org/ntsb/DEN92LA065.md): Piper PA-32RT-300 · Leadville, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 30, 1992 · N109RH · Destroyed
  > The pilot's failure to compensate for wind conditions and maintain directional control. Factors included: the pilot allowing the airplane to lift off prematurely, and gusty crosswinds.
- [NTSB DEN85FA214](https://openairdocs.org/ntsb/DEN85FA214.md): Piper PA-60-600 · Denver, CO · Accident · Serious injuries · Field investigation · Final report · Aug 11, 1985 · N3643R · Destroyed
  > Pilot in command stated that he waited aprx 90 seconds after a B-727 departed on rwy 8R due to possible wake turbulence. Plt continued to state that he used a short field takeoff procedure to climb above the flt path of the B-727. He stated that during…
- [NTSB DEN81FTE47](https://openairdocs.org/ntsb/DEN81FTE47.md): Bellanca DW1 · Loveland, CO · Accident · No injuries · Closed · Jun 26, 1981 · N8802B · Substantial damage
- [NTSB DEN81FTE16](https://openairdocs.org/ntsb/DEN81FTE16.md): Bellanca 17-31 · Englwood, CO · Accident · Serious injuries · Closed · Jan 19, 1981 · N245MB · Substantial damage

## 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" = 'CO' 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=CO

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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.