# NTSB WPR25LA157: Cirrus Design SR22T, N415DG, Fullerton, CA, April 25, 2025

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: April 24, 2025, 17:40 local (Apr 25, 2025, 00:40 UTC)
- Place: Fullerton, CA · KFUL
- Coordinates: 33.872014, -117.97978
- Nearby events: https://openairdocs.org/map.md?lat=33.8720&lon=-117.9798&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Western Pacific Region
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 200175
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR25LA157
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200175/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=200175
- Page: https://openairdocs.org/ntsb/WPR25LA157

## Probable cause

The pilot’s failure to attain a proper touchdown point, which resulted in a runway overrun and collision with terrain.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cirrus Design SR22T, 19 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2130004), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md)
- [Terrain: sloped/uneven terrain](https://openairdocs.org/ntsb-findings/03021017): Environmental issues › Physical environment · Effect on equipment; cases with it: [Cirrus Design SR22T, 2 cases](https://openairdocs.org/ntsb-findings/03021017/cases.md?model=2130004), [All aircraft, 270 cases](https://openairdocs.org/ntsb-findings/03021017/cases.md)
- [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained; cases with it: [Cirrus Design SR22T, 2 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=2130004), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Cirrus Design SR22T, 13 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2130004), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)

## Analysis

The pilot of the airplane reported that he was conducting a 180° power-off approach and landing. While landing on the 3,121 ft long runway, the airplane touched down about halfway down the runway. The pilot was unable to stop the airplane within the available runway length, and the airplane exited the departure end of the runway and struck a grassy berm, which resulted in the airplane’s nose gear collapse, and substantial damage to the firewall. The pilot initially reported that the brake system did not function as they expected; however, a brake system examination did not reveal any preaccident mechanical failures or malfunctions that would have precluded normal operation.

## Aircraft

- Registration: [N415DG](https://openairdocs.org/aircraft/N415DG), registered now, S/N 0553, built 2013 (OpenAirDocs)
- Reported make and model: CIRRUS DESIGN CORP SR22T
- Registry model: [Cirrus Design SR22T](https://openairdocs.org/model/cirrus-design-sr22t) (registry code 2130004) (OpenAirDocs)
- Registry engine: [Continental TSIO-550-K](https://openairdocs.org/engine/continental-tsio-550-k) (registry code 17410, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 0553
- Year built: 2013
- Airframe hours: 3007
- Engines: CONT MOTOR TSIO-550-K 315 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Truongton Aviation LLC, doing business as TruongTon Aviation LLC
- Registered owner: Truongton Aviation LLC
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, September 13, 2024, 20 hours before
- Departed: KFUL, Fullerton, CA
- Destination: Same as departure
- Airport: FUL, Fullerton Muni, runway 24, 3,121 × 75 ft, asphalt
- Equipment: Auto-pilot, Electronic multifunction display, Electronic primary flight display, Onboard weather, Stall warning system, Video recording device, ADS-B, Airframe parachute

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; injuries: none; private; airplane ratings: single-engine land; medical: class 1, without waivers/limitations; last flight review October 14, 2023; seat: left; restraint: none; flight hours: 475.6 total, 365 in this make and model, 340.3 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: 3,398 ft overcast
- Temperature: 63 °F, dew point 34 °F
- Altimeter: 29.93 inHg
- Observed at: KFUL
- METAR: KFUL 240053Z 20006KT 10SM OVC031 17/01 A2993 RMK AO2 SLP133 T01670006

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20250424005219A](https://openairdocs.org/incident/20250424005219A), Apr 24, 2025: Cirrus Design Corp SR22T, Fullerton, CA, Substantial damage. The pilot was performing a personal proficiency flight within the Fullerton airport traffic pattern. The pilot elected to practice a 180° power-off approach…

## Docket (4 files)

The files NTSB released with the investigation on August 11, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=200175. 916 KB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 303 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18867412&FileExtension=pdf&FileName=6120%20digitalform%20WPR25LA157_Redacted-Rel.pdf
- Memorandum for record a�� telephone interview, pilot conversation (item 2, PDF, 1 page, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18986433&FileExtension=pdf&FileName=Memorandum%20of%20Record%20no%20preflight%20mechanical%20WPR25LA157-Rel.pdf
- Memorandum for record a�� telephone interview, repair facility (item 3, PDF, 1 page, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18871608&FileExtension=pdf&FileName=Memorandum%20of%20Record%20mechanical%20repair%20WPR25LA157-Rel.pdf
- Photos (item 4, PDF, 4 pages, 483 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18871325&FileExtension=pdf&FileName=Docket%20pic%20array%20WPR25LA157-Rel.pdf

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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