# NTSB investigations: Lycoming 0-540 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.

Page 1 of 3 · 122 cases

## Latest cases

- [NTSB CEN26LA042](https://openairdocs.org/ntsb/CEN26LA042.md): Piper PA-28-235 · Castle Rock, CO · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Nov 11, 2025 · N9143W · Substantial damage
  > On November 10, 2025, about 1815 mountain standard time, a Piper PA-28-235 airplane, N9143W, was substantially damaged when it was involved in an accident near Castle Rock, Colorado. The pilot and one passenger reported no injuries. A second passenger…
- [NTSB CEN25LA001](https://openairdocs.org/ntsb/CEN25LA001.md): Cessna TR182 · Englewood, CO · Accident · No injuries · Class 4 · Limited · Final report · Oct 1, 2024 · N756JY · Substantial damage
  > The collapse of the right main landing gear during landing rollout.
- [NTSB CEN24LA206](https://openairdocs.org/ntsb/CEN24LA206.md): Piper PA-24-250 · Colorado Springs, CO · Accident · Minor injuries · Class 3 · Limited · Final report · May 31, 2024 · N7500P · Substantial damage
  > The pilot’s failure to use the carburetor heat during a descent that resulted in the loss of engine power due to carburetor icing.
- [NTSB CEN23LA274](https://openairdocs.org/ntsb/CEN23LA274.md): Piper PA-24-250 · Durango, CO · Accident · No injuries · Class 4 · Limited · Final report · Jul 2, 2023 · N7525P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB CEN23LA253](https://openairdocs.org/ntsb/CEN23LA253.md): Piper PA-24-250 · Watkins, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 10, 2023 · N6886P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to utilize the prelanding checklist to ensure the landing gear was extended before landing.
- [NTSB CEN23LA132](https://openairdocs.org/ntsb/CEN23LA132.md): Maule M-7-235B · Hotchkiss, CO · Accident · No injuries · Class 4 · Limited · Final report · Mar 13, 2023 · N235TT · Substantial damage
  > The pilot’s loss of control during landing rollout on a snow-covered, turf airstrip.
- [NTSB CEN22FA208](https://openairdocs.org/ntsb/CEN22FA208.md): Piper PA-32-260 · Broomfield, CO · Accident · 2 fatal · Class 3 · Field · Final report · May 22, 2022 · N85CT · Substantial damage
  > The pilot’s failure to abort the takeoff due to degraded engine performance. Contributing to the accident was the reduced performance of the engine, the reason for which could not be determined.
- [NTSB CEN22LA165](https://openairdocs.org/ntsb/CEN22LA165.md): Piper PA-28-235 · Calhan, CO · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 3, 2022 · N9119W · Substantial damage
  > The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion.
- [NTSB CEN21LA261](https://openairdocs.org/ntsb/CEN21LA261.md): Piper PA32 · Lafayette, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 11, 2021 · N3793W · Substantial damage
  > The flight crew’s improper fuel management that resulted in fuel starvation and the loss of engine power.
- [NTSB GAA19CA471](https://openairdocs.org/ntsb/GAA19CA471.md): Piper PA28 · Falcon, CO · Accident · No injuries · Data collection · Final report · Jul 31, 2019 · N8641W · Substantial damage
  > The pilot's failure to maintain a proper approach path and his delayed decision to go around, which resulted in impact with a construction barrier before the runway. Contributing to the accident was the pilot's decision to land on a runway closed for landing.
- [NTSB CEN19LA183](https://openairdocs.org/ntsb/CEN19LA183.md): Piper PA24 · Greeley, CO · Accident · No injuries · Class 3 · Limited · Final report · Jun 24, 2019 · N5866P · Substantial damage
  > The pilot’s improper landing flare, which resulted in failure of the right main landing gear and a subsequent loss of control.
- [NTSB GAA17CA016](https://openairdocs.org/ntsb/GAA17CA016.md): Robinson Stewart J Bearhawk · Calhan, CO · Accident · No injuries · Data collection · Final report · Oct 7, 2016 · N507SR · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion.
- [NTSB CEN14FA328](https://openairdocs.org/ntsb/CEN14FA328.md): Piper PA 28-235 · Georgetown, CO · Accident · 3 fatal · Field investigation · Final report · Jun 30, 2014 · N8814W · Destroyed
  > The pilot’s inability to maintain a climb while maneuvering the airplane in high-density altitude conditions that degraded the airplane’s climb performance and his exceedance of the airplane’s critical angle-of-attack, which led to an aerodynamic stall and…
- [NTSB CEN14FA230](https://openairdocs.org/ntsb/CEN14FA230.md): Piper PA 25-235 · Northglenn, CO · Accident · No injuries · Field investigation · Final report · May 5, 2014 · N4519Y · Destroyed
  > The pilot's decision to operate the banner-tow flight below the minimum safe altitude specified by federal regulation, which likely limited his ability to recover from a potential loss of airspeed due to a gusting wind condition. Also causal was the pilot’s…
- [NTSB CEN14CA160](https://openairdocs.org/ntsb/CEN14CA160.md): Piper PA 28-235 · De Beque, CO · Accident · Minor injuries · Data collection · Final report · Mar 14, 2014 · N9172W · Substantial damage
  > The pilot's failure to maintain control of the airplane while maneuvering at low altitude.
- [NTSB CEN13CA005](https://openairdocs.org/ntsb/CEN13CA005.md): Piper PA-24-250 · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Oct 5, 2012 · N6661P · Substantial damage
  > The pilot’s failure to maintain airspeed during the landing with known structural icing, which resulted in the airplane’s stall. Contributing to the accident was the pilot’s failure to divert to an area where conditions were not conducive to icing.
- [NTSB CEN12FA571](https://openairdocs.org/ntsb/CEN12FA571.md): Piper PA-24-250 · Milner, CO · Accident · 1 fatal · Field investigation · Final report · Aug 24, 2012 · N7774P · Substantial damage
  > The student pilot's impairment from alcohol, marijuana, and hypoxia, which adversely affected his ability to maintain control of the airplane.
- [NTSB CEN12LA473](https://openairdocs.org/ntsb/CEN12LA473.md): Cessna TR182 · Steamboat Springs, CO · Accident · No injuries · Limited investigation · Final report · Jul 24, 2012 · N73VX · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB CEN12CA157](https://openairdocs.org/ntsb/CEN12CA157.md): Cessna R182 · Colorado Springs, CO · Accident · Minor injuries · Data collection · Final report · Feb 4, 2012 · N2696C · Substantial damage
  > The pilot did not extend the landing gear before landing.
- [NTSB CEN11FA428](https://openairdocs.org/ntsb/CEN11FA428.md): Cessna R182 · Thornton, CO · Accident · 1 fatal · Field investigation · Final report · Jun 29, 2011 · N2344C · Substantial damage
  > The pilot's inadvertent encounter with a microburst while operating at a low altitude, which resulted in a loss of control from which the pilot could not recover. Contributing to the accident was the pilot’s inadequate preflight planning for the forecasted…
- [NTSB CEN10FA115](https://openairdocs.org/ntsb/CEN10FA115.md): Piper PA-25-235 · Boulder, CO · Accident · 3 fatal · Field investigation · Final report · Feb 6, 2010 · N8718L · 3 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other resulting in a midair collision. Contributing to the accident was the lack of perceived visual relative motion of the Piper and the Cirrus to the pilot of each airplane, the terrain background, and the…
- [NTSB CEN09LA171](https://openairdocs.org/ntsb/CEN09LA171.md): Piper PA-28C-235 · Falcon, CO · Accident · No injuries · Limited investigation · Final report · Feb 22, 2009 · N9487W · Substantial damage
  > A loss of engine power due to fuel starvation as a result of the pilot's inadequate fuel management.
- [NTSB DEN06LA070](https://openairdocs.org/ntsb/DEN06LA070.md): Cessna T-R182RG · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Apr 22, 2006 · N6170S · Substantial damage
  > the pilot inadvertently retracting the landing gear.
- [NTSB DEN06LA059](https://openairdocs.org/ntsb/DEN06LA059.md): Cessna TR182 · Fort Collins, CO · Accident · No injuries · Limited investigation · Final report · Apr 11, 2006 · N729SC · Substantial damage
  > the loss of engine power due to fuel exhaustion. Contributing factors were the pilot's improper preflight planning, the pilot's failure to refuel the airplane, and the lack of suitable terrain for the forced landing.
- [NTSB DEN06LA024](https://openairdocs.org/ntsb/DEN06LA024.md): Piper PA-28-235 · Peyton, CO · Accident · No injuries · Limited investigation · Final report · Dec 21, 2005 · N9318W · Substantial damage
  > the pilot's delay in applying carburetor heat that resulted in the partial loss of engine power due to carburetor ice. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB DEN04LA129](https://openairdocs.org/ntsb/DEN04LA129.md): Piper PA-24-250 · Sterling, CO · Accident · No injuries · Limited investigation · Final report · Aug 22, 2004 · N5975P · Destroyed
  > the failure of the landing gear extension system for undetermined reasons.
- [NTSB DEN04CA121](https://openairdocs.org/ntsb/DEN04CA121.md): Piper PA-24-250 · Model, CO · Accident · Minor injuries · Data collection · Final report · Jul 22, 2004 · N7064P · Substantial damage
  > the pilot's improper in-flight planning and decision making resulting in a loss of engine power due to fuel exhaustion. A contributing factor was the trees.
- [NTSB DEN04CA073](https://openairdocs.org/ntsb/DEN04CA073.md): Piper PA-25-235 · Flagler, CO · Accident · No injuries · Data collection · Final report · May 22, 2004 · N8586L · Substantial damage
  > the pilot's improper in-flight planning/decision which led to fuel exhaustion and subsequent loss of engine power. Factors contributing to the accident were the low altitude, low airspeed, and the inoperative fuel quantity gauge.
- [NTSB DEN03LA080](https://openairdocs.org/ntsb/DEN03LA080.md): Maule MX-7-235 · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Apr 14, 2003 · N44UG · Substantial damage
  > the pilot's failure to maintain directional control of the aircraft during the landing roll out. Contributing factors were the unlocked tailwheel.
- [NTSB DEN02LA096](https://openairdocs.org/ntsb/DEN02LA096.md): Piper PA-25-235 · Boulder, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 2002 · N9791P · Destroyed
  > the pilot's inadequate preflight preparation, which resulted in fuel exhaustion and a subsequent loss of engine power, and his failure to maintain adequate airspeed during the forced landing, which resulted in an inadvertent stall/mush. Factors included the…
- [NTSB DEN02LA090](https://openairdocs.org/ntsb/DEN02LA090.md): Piper PA-32-260 · Victor, CO · Accident · Serious injuries · Limited investigation · Final report · Aug 11, 2002 · N222SH · Substantial damage
  > the pilot's failure to refuel, resulting in fuel exhaustion and a subsequent loss of engine power. Contributing factors were the pilot's use of inappropriate medication, and the unsuitable terrain on which to make a forced landing.
- [NTSB DEN02LA054](https://openairdocs.org/ntsb/DEN02LA054.md): Cessna TR182 · Glenwood Sprngs, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 2002 · N333AJ · Substantial damage
  > the pilot's failure to maintain clearance from a tree while conducting an aborted landing. Contributing factors were the pilot’s low approach airspeed, and his failure to maintain directional control during landing roll.
- [NTSB DEN02LA040](https://openairdocs.org/ntsb/DEN02LA040.md): Cessna TR182 · Kersey, CO · Accident · No injuries · Limited investigation · Final report · Apr 28, 2002 · N787PC · Substantial damage
  > The pilot's inadequate planning decision which led to fuel exhaustion and subsequent loss of engine power.
- [NTSB DEN02LA020](https://openairdocs.org/ntsb/DEN02LA020.md): Maule M-5-235C · Grand Junction, CO · Accident · No injuries · Limited investigation · Final report · Jan 13, 2002 · N382X · Substantial damage
  > the failure of the tail wheel left steering cable. A contributing factor was the pilot's loss of aircraft control (not possible) and the subsequent inadvertent ground loop.
- [NTSB DEN02LA015](https://openairdocs.org/ntsb/DEN02LA015.md): Piper PA-28-235 · Crested Butte, CO · Accident · No injuries · Limited investigation · Final report · Dec 18, 2001 · N8704W · Substantial damage
  > a wet brake that later froze resulting in a loss of directional control on landing. A contributing factor was the snow bank.
- [NTSB DEN01LA083](https://openairdocs.org/ntsb/DEN01LA083.md): Piper PA-24-250 · Telluride, CO · Accident · No injuries · Limited investigation · Final report · Apr 8, 2001 · N7736P · Substantial damage
  > the pilot's failure to maintain control of the airplane during initial climb. Factors include the gusty wind and high density altitude conditions.
- [NTSB DEN01LA031](https://openairdocs.org/ntsb/DEN01LA031.md): Cessna R182 · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Dec 13, 2000 · N2386C · Destroyed
  > the flight instructor's inadequate supervision of the dual student, which resulted in a hard landing. Contributing factors were the dual student flaring the airplane prematurely, resulting in an inadvertent stall/mush.
- [NTSB DEN00LA178](https://openairdocs.org/ntsb/DEN00LA178.md): Piper PA-28-235 · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Sep 26, 2000 · N9281W · Substantial damage
  > The pilot's failure to maintain adequate clearance from a vehicle parked beside the ramp while he was taxiing the aircraft from landing.
- [NTSB DEN99LA146](https://openairdocs.org/ntsb/DEN99LA146.md): Piper PA-32-260 · Aspen, CO · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 1999 · N991RC · Destroyed
  > The pilot's inadequate in flight planning. Factors were the high density altitude, the lack of suitable terrain for a forced landing, and the sign post that the right wing impacted.
- [NTSB FTW97LA202](https://openairdocs.org/ntsb/FTW97LA202.md): Piper PA-25-235 · Lamar, CO · Accident · No injuries · Limited investigation · Final report · May 27, 1997 · N4829Y · Substantial damage
  > Failure of the left magneto and crank shaft idler drive gears. Factors were failure to perform a 100 hour inspection and unsuitable terrain for a forced landing.
- [NTSB FTW97LA111](https://openairdocs.org/ntsb/FTW97LA111.md): Cessna TR182 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Mar 1, 1997 · N2396S · Substantial damage
  > Improper repair to the nose landing gear assembly. A factor was binding of the nose gear extension assembly due to the improper repair.
- [NTSB FTW96LA402](https://openairdocs.org/ntsb/FTW96LA402.md): Cessna TR182 · Telluride, CO · Accident · No injuries · Limited investigation · Final report · Aug 24, 1996 · N757QT · Substantial damage
  > failure of the generator control unit (GCU), which resulted in a total electrical failure and failure of the main landing gear to lock in place.
- [NTSB FTW96LA214](https://openairdocs.org/ntsb/FTW96LA214.md): Maule M-5-235C · Akron, CO · Accident · No injuries · Limited investigation · Final report · May 15, 1996 · N9194E · Substantial damage
  > the pilot's failure to maintain directional control.
- [NTSB FTW96LA031](https://openairdocs.org/ntsb/FTW96LA031.md): Cessna 182TR · Boulder, CO · Accident · Serious injuries · Limited investigation · Final report · Oct 30, 1995 · N7590R · Substantial damage
  > The pilot's failure to determine the amount of fuel aboard the aircraft during preflight, and his failure to refuel the aircraft.
- [NTSB FTW95LA314](https://openairdocs.org/ntsb/FTW95LA314.md): Cessna TR182 · Center, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 21, 1995 · N5153R · Substantial damage
  > Improper recovery from a bounced landing by the pilot-in-command. A factor was a premature landing flare.
- [NTSB FTW95LA304](https://openairdocs.org/ntsb/FTW95LA304.md): Piper PA-25-235 · Stratton, CO · Accident · No injuries · Limited investigation · Final report · Jul 15, 1995 · N9801P · Destroyed
  > The pilot's excessive rate of descent as he initiated the swath run and operation of the aircraft over the maximum allowable gross weight.
- [NTSB FTW95FA030](https://openairdocs.org/ntsb/FTW95FA030.md): Piper PA-28-235 · Aurora, CO · Accident · 2 fatal · Field investigation · Final report · Oct 26, 1994 · N8954W · Destroyed
  > THE CFI's FAILURE TO MAINTAIN AIRCRAFT CONTROL DUE TO SPATIAL DISORIENTATION. FACTORS WERE: A DARK, MOONLESS NIGHT WITH NO VISIBLE HORIZON AND RECENCY OF NIGHT EXPERIENCE BY THE FLIGHT INSTRUCTOR.
- [NTSB DEN92LA031](https://openairdocs.org/ntsb/DEN92LA031.md): Maule M-5-235C · Durango, CO · Accident · No injuries · Limited investigation · Final report · Feb 9, 1992 · N5637W · Substantial damage
  > The pilot's failure to maintain directional control. A factor was: crosswind.
- [NTSB DEN92LA006](https://openairdocs.org/ntsb/DEN92LA006.md): Piper PA-24-250 · Ellicott, CO · Accident · Minor injuries · Limited investigation · Final report · Oct 30, 1991 · N6815P · Substantial damage
  > A power loss for undetermined reasons, the pilot's poorly planned approach, and excessive airspeed. Factors were: the pilot's intentional flight into IMC, accumulation of wing ice and his becoming lost disoriented.
- [NTSB DEN90DTE08](https://openairdocs.org/ntsb/DEN90DTE08.md): Piper PA-25-235 · Idalia, CO · Accident · No injuries · Final report · Sep 11, 1990 · N9571P · Substantial damage
  > The encounter with an unfavorable wind, a dust devil. A factor was the inability of the pilot to maintain directional control.

Next page: https://openairdocs.org/ntsb.md?engine=41532&state=CO&page=2

## 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 ('41532'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&state=CO

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