# Ongoing NTSB investigations: Lycoming 0-540 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.

## Latest cases

- [NTSB CEN27LA019](https://openairdocs.org/ntsb/CEN27LA019.md): Piper PA-28-235 · Cedar Rapids, IA · Accident · Minor injuries · Class 3 · Limited · Investigation open · Oct 18, 2026 · N8759W
- [NTSB WPR27LA003](https://openairdocs.org/ntsb/WPR27LA003.md): Maule M-5-235C · Agua Dulce, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Oct 3, 2026 · N56328 · Substantial damage
- [NTSB ANC26LA096](https://openairdocs.org/ntsb/ANC26LA096.md): Cessna R182 · Lebanon, TN · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Sep 1, 2026 · N6346T · Substantial damage
  > On September 1, 2026, about 1815 eastern daylight time, a Cessna R182 airplane was substantially damaged when it was involved in an accident near Lebanon, Tennessee. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of Federal…
- [NTSB ERA26LA321](https://openairdocs.org/ntsb/ERA26LA321.md): Cessna R182 · Clarksville, TN · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 30, 2026 · N756EB · Substantial damage
- [NTSB ERA26LA312](https://openairdocs.org/ntsb/ERA26LA312.md): Piper PA24 · Fort Washington, MD · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 21, 2026 · N6969P · Substantial damage
- [NTSB ERA26LA358](https://openairdocs.org/ntsb/ERA26LA358.md): Piper PA24 · Union City, OH · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 10, 2026 · N6985P · Substantial damage
  > On August 10, 2026, about 1800eastern daylight time, a Piper PA-24-250, N6985P, was substantially damaged when it was involved in an accident near Union City, Ohio. The flight instructor and the private pilot were not injured. The airplane was operated as a…
- [NTSB ANC26LA080](https://openairdocs.org/ntsb/ANC26LA080.md): Piper PA-32-260 · Pinetown, NC · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Aug 6, 2026 · N8791E · Substantial damage
  > On August 6, 2026, about 1355 eastern daylight time, a Piper Aircraft PA-32-260 airplane, N8791E, was substantially damaged when it was involved in an accident near Pinetown, North Carolina. The private pilot and two passengers sustained minor injuries. The…
- [NTSB CEN26LA242](https://openairdocs.org/ntsb/CEN26LA242.md): Piper PA-25-235 · Forest Lake, MN · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 4, 2026 · N386AB · Substantial damage
  > On July 4, 2026, about 0942 central daylight time, a Piper PA-25-235 airplane, N386AB, was substantially damaged when it was involved in an accident near Forest Lake, Minnesota. The pilot was not injured. The airplane was operated as a Title 14 Code of…
- [NTSB ERA26FA252](https://openairdocs.org/ntsb/ERA26FA252.md): Piper PA24 · Hazen, ND · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 28, 2026 · N6852P · Destroyed
  > On June 28, 2026, about 1317 central daylight time, a Piper PA-24-250, N6852P, was destroyed when it was involved in an accident near Hazen, North Dakota. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part…
- [NTSB WPR26FA224](https://openairdocs.org/ntsb/WPR26FA224.md): Piper PA-24-250 · Middlefield, OH · Accident · 3 fatal · Class 3 · Field · Preliminary report · Jun 20, 2026 · N6403P · Substantial damage
  > On June 20, 2026, about 1535 eastern daylight time, a Piper PA-24-250, N6403P, was substantially damaged when it was involved in an accident near Middlefield, Ohio. The pilot and two passengers sustained fatal injuries. The airplane was operated as a Title 14…
- [NTSB ANC26LA053](https://openairdocs.org/ntsb/ANC26LA053.md): Piper PA-28-235 · Key West, FL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jun 14, 2026 · N15564 · Substantial damage
  > On June 14, 2026, at 1035 eastern standard time, a Piper PA-28-235 airplane, N15564, was substantially damaged when it was involved in an accident near Key West, Florida. The pilot was not injured and the passenger sustained minor injuries. The airplane was…
- [NTSB ERA26FA214](https://openairdocs.org/ntsb/ERA26FA214.md): Piper PA-25-235 · Saratoga Springs, NY · Accident · 1 fatal · Class 3 · Field · Preliminary report · May 26, 2026 · N8656L · 2 aircraft · Substantial damage
  > On May 26, 2026, about 1347 eastern daylight time, a Piper PA-25-235 airplane, N8656L, was substantially damaged when it was involved in an accident near Saratoga Springs, New York. The pilot was fatally injured. The airplane was operated as a Title 14 Code…
- [NTSB WPR26FA151](https://openairdocs.org/ntsb/WPR26FA151.md): Piper PA-32R-301T · Marana, AZ · Accident · 2 fatal · Class 3 · Field · Preliminary report · Apr 9, 2026 · N4190E · Substantial damage
  > On April 08, 2026 at 1710 mountain standard time, a Piper PA-32R-301T, N4190E, sustained substantial damage when it was involved in an accident near Marana, AZ. The pilot and passenger sustained fatal injuries. The airplane was operated as a Title 14 Code of…
- [NTSB WPR26LA157](https://openairdocs.org/ntsb/WPR26LA157.md): Cessna T182 · Marion, MT · Accident · No injuries · Class 3 · Limited · Preliminary report · Apr 8, 2026 · N5475N · Substantial damage
  > On April 8, 2026, about 1315 mountain standard time, a Cessna T182, N5475N, was substantially damaged when it was involved in an accident near Marion, Montana. Both pilots were uninjured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB ANC26FA021](https://openairdocs.org/ntsb/ANC26FA021.md): Robinson Helicopter R44 · Boynton Beach, FL · Accident · 2 fatal · Class 3 · Field · Preliminary report · Mar 23, 2026 · N478AT · Destroyed
  > On March 23, 2026, about 1221 eastern daylight time, a Robinson R44 Raven I helicopter, N478AT, was destroyed when it was involved in an accident near Boynton Beach, Florida. The flight instructor and the pilot receiving instruction were fatally injured. The…
- [NTSB WPR26FA069](https://openairdocs.org/ntsb/WPR26FA069.md): Piper PA-32-260 · Rio Linda, CA · Accident · 1 fatal · Class 3 · Field · Preliminary report · Dec 24, 2025 · N2785Q · Substantial damage
  > On December 24, 2025, at approximately 1230 Pacific standard time, a Piper PA-32-260, N2785Q, was substantially damaged when it was involved in an accident near Rio Linda, California. The pilot sustained serious injuries, and the pilot-rated passenger was…
- [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 WPR25LA295](https://openairdocs.org/ntsb/WPR25LA295.md): Siai-Marchetti SF260B · Billings, MT · Accident · No injuries · Class 3 · Limited · Preliminary report · Sep 26, 2025 · N272C · Substantial damage
  > On September 26, 2025, about 1040 mountain daylight time, a SIAI-MARCHETTI SF 260B, N272C, was substantially damaged when it was involved in an accident near Billings, Montana. The pilot and passenger were not injured. The airplane was operated as a Title 14…
- [NTSB ANC25LA105](https://openairdocs.org/ntsb/ANC25LA105.md): Maule M-5-235C · Point MacKenzie, AK · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Sep 13, 2025 · N343GA · Substantial damage
  > On September 13, 2025, about 12:28 Alaska daylight time, a Maule M5-235C airplane, N343GA, was substantially damaged when it was involved in an accident near Point McKenzie, Alaska. The commercial pilot sustained serious injuries. The airplane was operated…
- [NTSB CEN25LA357](https://openairdocs.org/ntsb/CEN25LA357.md): Piper PA-24-250 · Gregory, MI · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 28, 2025 · N7412P · Substantial damage
  > On August 28, 2025, at about 1550 eastern daylight time, a Piper PA-24-250 airplane, N7412P, was substantially damaged when it was involved in an accident near Gregory, Michigan. The pilot was seriously injured. The airplane was operated as a Title 14 Code of…
- [NTSB WPR25LA266](https://openairdocs.org/ntsb/WPR25LA266.md): Cessna TR182 · San Diego, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 12, 2025 · N619MW · Substantial damage
  > On August 12, 2025, about 1330 Pacific daylight time, Cessna TR182 airplane, N619MW, was substantially damaged when it was involved in an accident near San Diego, California. The pilot and passenger were not injured. The airplane was operated as a Title 14…
- [NTSB CEN25FA308](https://openairdocs.org/ntsb/CEN25FA308.md): Cessna T182T · Augusta, AR · Accident · 1 fatal · Class 3 · Field · Preliminary report · Aug 7, 2025 · N35370 · Substantial damage
  > On August 7, 2025, at 1037 central daylight time, a Cessna T182T airplane, N35370, was substantially damaged when it was involved in an accident near Augusta, Arkansas. The pilot was fatally injured and the passenger received minor injuries. The airplane was…
- [NTSB WPR25LA217](https://openairdocs.org/ntsb/WPR25LA217.md): Cessna TR182 · Tuba City, AZ · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jul 17, 2025 · N182KC · Substantial damage
  > On July 17, 2025, about 1447 mountain standard time, a Cessna TR182, N182KC, was substantially damaged when it was involved in an accident near Tuba City, Arizona. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of…
- [NTSB CEN25FA124](https://openairdocs.org/ntsb/CEN25FA124.md): Robinson Helicopter R44 · Danville, VA · Accident · 1 fatal · Class 3 · Field · Preliminary report · Mar 15, 2025 · N331ES · Destroyed
  > On March 15, 2025, about 1500 eastern daylight time, a Robinson R44 helicopter, N331ES, was destroyed when it was involved in an accident near Danville, Virginia. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal…
- [NTSB WPR25FA079](https://openairdocs.org/ntsb/WPR25FA079.md): Piper PA-24-250 · Rock Springs, WY · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jan 14, 2025 · N6502P
  > On January 14, 2025, about 0622 mountain standard time, a Piper PA-24-250, N6502P, was destroyed when it was involved in an accident near Rock Springs, Wyoming. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB WPR25LA065](https://openairdocs.org/ntsb/WPR25LA065.md): Piper PA-24-250 · Mesa, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · Dec 19, 2024 · N7833P · Substantial damage
  > On December 19, 2024, about 1515 mountain standard time, a Piper PA-24-250, N7833P, was involved in an accident near Mesa, Arizona. The pilot and pilot-rated passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part…
- [NTSB WPR24FA295](https://openairdocs.org/ntsb/WPR24FA295.md): Piper PA-24-250 · Hawthorne, CA · Accident · Serious injuries · Class 3 · Field · Preliminary report · Sep 6, 2024 · N588CP · Destroyed
  > On September 6, 2024, at 0036 Pacific daylight time, a Piper PA-24-250, N588CP, was destroyed when it was involved in an accident near Hawthorne, California. The pilot and pilot rated passenger sustained serious injuries. The airplane was operated as a Title…

## 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" = 'Ongoing'
  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&status=ongoing

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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.