# Final NTSB investigations: Lycoming IO-540 series

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 21 · 1,014 cases

## Latest cases

- [NTSB WPR26LA200](https://openairdocs.org/ntsb/WPR26LA200.md): Maule M-7-260C · Kanab, UT · Accident · No injuries · Class 4 · Limited · Final report · May 21, 2026 · N261MM · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with gusting crosswind conditions.
- [NTSB CEN26LA122](https://openairdocs.org/ntsb/CEN26LA122.md): Cessna 182 · Golden, MO · Accident · No injuries · Class 4 · Limited · Final report · Feb 21, 2026 · N7276V · Substantial damage
  > The pilot’s failure to establish stabilized approach that would have allowed the airplane to touch down with adequate runway remaining. Contributing to the accident was the pilot’s failure to execute a go-around.
- [NTSB CEN26LA101](https://openairdocs.org/ntsb/CEN26LA101.md): Robinson Helicopter R44 II · Sullivan, MO · Accident · Minor injuries · Class 4 · Limited · Final report · Jan 29, 2026 · N916VK · Destroyed
  > The pilot’s failure to maintain clearance from powerlines during low-level operations.
- [NTSB WPR26LA083](https://openairdocs.org/ntsb/WPR26LA083.md): Robinson R44 · Parkman, WY · Accident · No injuries · Class 4 · Limited · Final report · Jan 19, 2026 · N996NR · 2 aircraft · Substantial damage
  > The pilots’ failure to maintain separation while conducting air work in a common operational area. Contributing to the accident was the pilots’ divided attention associated with the mission activity and unreliable radio communications.
- [NTSB WPR26LA084](https://openairdocs.org/ntsb/WPR26LA084.md): Maule M-7-235B · Cody, WY · Accident · No injuries · Class 4 · Limited · Final report · Jan 17, 2026 · N116G · Substantial damage
  > The pilot's failure to maintain directional control during landing roll.
- [NTSB ERA26LA086](https://openairdocs.org/ntsb/ERA26LA086.md): Pipistrel D O O Panthera X152 · Atlanta, GA · Accident · No injuries · Class 4 · Limited · Final report · Dec 12, 2025 · N37RR · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB ERA26LA013](https://openairdocs.org/ntsb/ERA26LA013.md): Cessna T182T · Venice, FL · Accident · No injuries · Class 4 · Limited · Final report · Oct 4, 2025 · N423TA · Substantial damage
  > The pilot’s failure to maintain directional control while taxiing in gusty, quartering tailwind conditions.
- [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 ERA25LA363](https://openairdocs.org/ntsb/ERA25LA363.md): Piper PA-32R-300 · White Plains, NY · Accident · No injuries · Class 4 · Limited · Final report · Sep 23, 2025 · N47630 · Substantial damage
  > The pilot’s failure to maintain proper glidepath during a night visual approach, which resulted in a collision with the runway lighting system. Contributing to the outcome was the pilot’s momentary disorientation due to glare from the runway approach lighting…
- [NTSB ERA25LA358](https://openairdocs.org/ntsb/ERA25LA358.md): Cessna 182 · Blue Ridge, GA · Accident · No injuries · Class 4 · Limited · Final report · Sep 20, 2025 · N1176R · Substantial damage
  > The pilot’s failure to obtain the proper touchdown point, which resulted in a runway overrun.
- [NTSB CEN25LA387](https://openairdocs.org/ntsb/CEN25LA387.md): Piper PA-32R-301 · Oxford, MS · Accident · Serious injuries · Class 4 · Limited · Final report · Sep 18, 2025 · N318JM · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during the initial takeoff climb, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN25LA372](https://openairdocs.org/ntsb/CEN25LA372.md): Cessna 182T · Seymour, IN · Accident · No injuries · Class 4 · Limited · Final report · Sep 9, 2025 · N357CP · Substantial damage
  > The flight instructor’s improper landing flare which resulted in a bounced landing and loss of control.
- [NTSB ERA25LA325](https://openairdocs.org/ntsb/ERA25LA325.md): Cessna 182 · Lebanon, OH · Accident · No injuries · Class 4 · Limited · Final report · Aug 31, 2025 · N628FN · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during takeoff, which resulted in a runway excursion and collision with a sign.
- [NTSB ANC25LA099](https://openairdocs.org/ntsb/ANC25LA099.md): Robinson Helicopter R44 II · Petersville, AK · Accident · No injuries · Class 4 · Limited · Final report · Aug 29, 2025 · N74435 · Substantial damage
  > The pilot’s exceedance of the helicopter’s available power while landing in a remote confined area, which resulted in rotor droop and a hard landing.
- [NTSB ERA25LA298](https://openairdocs.org/ntsb/ERA25LA298.md): Paschal JR Roy E Velocity XL RG · Columbia, SC · Accident · No injuries · Class 4 · Limited · Final report · Aug 12, 2025 · N7778M · Substantial damage
  > A landing gear collapse during landing.
- [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 WPR25LA118](https://openairdocs.org/ntsb/WPR25LA118.md): Robinson Helicopter R44 II · Hobbs, NM · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 25, 2025 · N7530U · Substantial damage
  > The student pilot’s loss of directional control during a hover, which resulted in an impact with terrain.
- [NTSB ERA25LA102](https://openairdocs.org/ntsb/ERA25LA102.md): Daniel A Robinson High 6 Berkut 540 · Orlando, FL · Accident · No injuries · Class 4 · Limited · Final report · Jan 20, 2025 · N976DR · Substantial damage
  > The pilot’s failure to verify the canopy latches were in the locked position prior to takeoff.
- [NTSB CEN25LA073](https://openairdocs.org/ntsb/CEN25LA073.md): Robinson Helicopter R44 II · Buras, LA · Accident · Serious injuries · Class 4 · Limited · Final report · Jan 8, 2025 · N430JM · Substantial damage
  > The pilot’s failure to maintain control during a hover taxi with a quartering tailwind.
- [NTSB ANC25LA015](https://openairdocs.org/ntsb/ANC25LA015.md): Gippsaero PTY GA8 · Nightmute, AK · Accident · No injuries · Class 4 · Limited · Final report · Jan 4, 2025 · N916RK · Substantial damage
  > The pilot’s loss of directional control while taxiing in gusting wind conditions.
- [NTSB CEN25LA059](https://openairdocs.org/ntsb/CEN25LA059.md): Cessna 182T · Pearland, TX · Accident · No injuries · Class 3 · Limited · Final report · Dec 11, 2024 · N127SL · 2 aircraft · Substantial damage
  > The AA-5 pilot’s failure to maintain separation from the 182T during approach and landing, which resulted in a ground collision during the landing roll. Contributing to the accident was the failure of the AA-5’s electrical system, which prevented the AA-5…
- [NTSB CEN25FA019](https://openairdocs.org/ntsb/CEN25FA019.md): Robinson R44 · Houston, TX · Accident · 4 fatal · Class 2 · Field · Final report · Oct 21, 2024 · N881KE · Destroyed
  > The pilot’s failure to maintain clearance from a lighted radio tower during a visual night flight. Contributing to the accident was the air traffic controller’s failure to issue a safety alert notifying the pilot of the flight’s unsafe proximity to the tower.
- [NTSB CEN25LA018](https://openairdocs.org/ntsb/CEN25LA018.md): Piper PA-32R-301 · Van, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 17, 2024 · N81481 · Substantial damage
  > The mechanic’s improper maintenance of the engine’s air induction scat duct, which collapsed during the flight and resulted in a loss of engine power.
- [NTSB CEN24LA378](https://openairdocs.org/ntsb/CEN24LA378.md): Piper PA32 · Caro, MI · Accident · No injuries · Class 3 · Limited · Final report · Sep 30, 2024 · N31407 · Substantial damage
  > A total loss of engine power due to maintenance personnel’s failure to properly tighten the fuel supply line B-nut at the fuel servo.
- [NTSB CEN24LA376](https://openairdocs.org/ntsb/CEN24LA376.md): Piper PA-32-300 · Pierz, MN · Accident · No injuries · Class 4 · Limited · Final report · Sep 30, 2024 · N2032M · Substantial damage
  > The pilot’s inadequate fuel management which resulted in the loss of engine power due to fuel starvation.
- [NTSB ANC24LA055](https://openairdocs.org/ntsb/ANC24LA055.md): Gippsland GA-8 · Tuntutuliak, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 26, 2024 · N13AV · Substantial damage
  > The pilot's failure to maintain directional control during takeoff after an encounter with a gusting wind, which resulted in a wing strike.
- [NTSB WPR24LA166](https://openairdocs.org/ntsb/WPR24LA166.md): Thomas J Spencer RV-10 · Snohomish, WA · Accident · No injuries · Class 4 · Limited · Final report · Jun 1, 2024 · N90VT · Substantial damage
  > The pilot’s failure to attain a proper touchdown point during landing with a tailwind which resulted in a runway overrun.
- [NTSB ERA24LA240](https://openairdocs.org/ntsb/ERA24LA240.md): Aero Commander Callair A-9B · Zebulon, NC · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 1, 2024 · N7650V · Substantial damage
  > A total loss of engine power while maneuvering due to fuel starvation.
- [NTSB WPR24LA146](https://openairdocs.org/ntsb/WPR24LA146.md): Robert Sterling 4P · Lake Havasu City, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · May 9, 2024 · N78GP · Substantial damage
  > A loss of engine power during initial climb due to fuel vapor lock. Contributing to the accident was the incorrect installation of the ancillary fuel supply system components.
- [NTSB ERA24FA176](https://openairdocs.org/ntsb/ERA24FA176.md): Piper PA-32R-301 · Knoxville, TN · Accident · 1 fatal · Class 3 · Field · Final report · Apr 12, 2024 · N9236J · Destroyed
  > The pilot’s decision to depart into an area of instrument meteorological and icing conditions, which resulted in loss of airplane control and a subsequent in-flight breakup.
- [NTSB CEN24LA155](https://openairdocs.org/ntsb/CEN24LA155.md): Piper PA-32-301 · Sullivan, MO · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 11, 2024 · N651ED · Substantial damage
  > A bearing failure that resulted in fatigue failure of the crankshaft and a subsequent total loss of engine power.
- [NTSB WPR24LA111](https://openairdocs.org/ntsb/WPR24LA111.md): Piper Aerostar 601P · Grass Valley, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 14, 2024 · N1SS · Substantial damage
  > The pilot’s failure to maintain directional control in a gusting wind condition.
- [NTSB ANC24LA013](https://openairdocs.org/ntsb/ANC24LA013.md): Robinson Helicopter R44 II · Glacier View, AK · Accident · No injuries · Class 3 · Limited · Final report · Feb 11, 2024 · N74868 · Substantial damage
  > A sudden stoppage of the tail rotor for unknown reasons, which resulted in the tortional overload failure of the tail rotor driveshaft.
- [NTSB CEN24LA081](https://openairdocs.org/ntsb/CEN24LA081.md): Maule M-6-235 · Beaumont, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 29, 2023 · N71MS · Substantial damage
  > The pilot’s failure to maintain directional control during landing in crosswind conditions, which resulted in a ground loop on the runway.
- [NTSB ERA24LA042](https://openairdocs.org/ntsb/ERA24LA042.md): Robinson Helicopter R44 II · Ogdensburg, NY · Accident · No injuries · Class 4 · Limited · Final report · Nov 18, 2023 · N789GR · Substantial damage
  > The loss of control of the helicopter during taxi, which resulted in rollover.
- [NTSB CEN23LA380](https://openairdocs.org/ntsb/CEN23LA380.md): Cessna 182T · Klein, TX · Accident · No injuries · Class 4 · Limited · Final report · Aug 23, 2023 · N908VA · Substantial damage
  > The pilot’s failure to maintain directional control during the crosswind landing.
- [NTSB WPR23LA363](https://openairdocs.org/ntsb/WPR23LA363.md): Piper PA-32-300 · Needles, CA · Accident · No injuries · Class 4 · Limited · Final report · Aug 13, 2023 · N2957N · Substantial damage
  > An encounter with windshear during the initial climb after takeoff, resulting in a loss of control and a subsequent hard landing.
- [NTSB ERA23LA359](https://openairdocs.org/ntsb/ERA23LA359.md): Aero Commander 500 S · Key West, FL · Accident · No injuries · Class 4 · Limited · Final report · Aug 13, 2023 · N62WE · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB ERA23LA306](https://openairdocs.org/ntsb/ERA23LA306.md): Piper PA-32RT-300 · Mount Gilead, OH · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 21, 2023 · N9519C · Substantial damage
  > The pilot’s improper fuel management by not switching fuel tanks in flight, resulting in fuel starvation to the engine and a total loss of engine power.
- [NTSB WPR23LA272](https://openairdocs.org/ntsb/WPR23LA272.md): Mellinger B L III/Briebleb R Glasair III · Pahrump, NV · Accident · No injuries · Class 3 · Limited · Final report · Jul 17, 2023 · N196G · Substantial damage
  > A fuel leak due to damaged threads on a fuel line fitting, which resulted in an interruption of fuel flow and a total loss of engine power due to fuel starvation.
- [NTSB WPR23LA263](https://openairdocs.org/ntsb/WPR23LA263.md): Robinson Helicopter R44 II · Marble Falls, TX · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2023 · N163RK · Substantial damage
  > A total loss of engine power due to fuel contamination from an unknown source.
- [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 ANC23FA045](https://openairdocs.org/ntsb/ANC23FA045.md): Piper PA-32-300 · Old Harbor, AK · Accident · 2 fatal · Class 3 · Field · Final report · Jul 2, 2023 · N1132Q · Substantial damage
  > The pilot’s failure to maintain clearance from rising terrain. Contributing to the accident was the pilot’s delayed decision to turn away from the terrain.
- [NTSB CEN23LA268](https://openairdocs.org/ntsb/CEN23LA268.md): Velocity Velocity XL · Tahlequah, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 27, 2023 · N340XL · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB WPR23LA216](https://openairdocs.org/ntsb/WPR23LA216.md): Cessna 172R · Santa Monica, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 5, 2023 · N819KS · Substantial damage
  > A failure of the nose wheel upper torque link bolt, which resulted in a loss of steering control. Contributing to the accident were maintenance personnel’s failure to inspect and replace the fractured bolt and the pilot’s oversight of the bolt during his…
- [NTSB CEN23FA201](https://openairdocs.org/ntsb/CEN23FA201.md): Cessna 182T · Grand Isle, LA · Accident · 1 fatal · Class 3 · Field · Final report · May 24, 2023 · N577TZ · Substantial damage
  > The pilot’s operation of the airplane while intoxicated, resulting in its impact with the ocean.
- [NTSB WPR23LA170](https://openairdocs.org/ntsb/WPR23LA170.md): Robinson Helicopter R44 II · Van Nuys, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 28, 2023 · N549TS · Substantial damage
  > The pilot’s failure to maintain lateral control of the helicopter, which resulted in a hard landing.
- [NTSB ANC23LA028](https://openairdocs.org/ntsb/ANC23LA028.md): Maule M-5-235C · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Apr 4, 2023 · N5644W · Substantial damage
  > The pilot's delayed decision to execute a go-around maneuver while landing with excess airspeed into a short strip, which resulted in a runway overrun and subsequent loss of control.
- [NTSB WPR23FA137](https://openairdocs.org/ntsb/WPR23FA137.md): Cessna 182S · Alcova, WY · Accident · 1 fatal · Class 3 · Field · Final report · Mar 21, 2023 · N314FR · Substantial damage
  > The airplane’s encounter with low level wind shear associated with moderate turbulence, which resulted in a loss of airplane control.
- [NTSB ERA23LA148](https://openairdocs.org/ntsb/ERA23LA148.md): Velocity Velocity SE · Bahia Key, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 11, 2023 · N343BD · Substantial damage
  > A total loss of engine power for undetermined reasons.

Next page: https://openairdocs.org/ntsb.md?engine=41530&status=final&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."completionStatus" = 'Completed'
  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&status=final

---
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.