# NTSB ERA25LA355: Lamphere David A Wittman Buttercup, N365ED, Monterey, VA, September 19, 2025

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: September 19, 2025, 08:20 local (12:20 UTC)
- Place: Monterey, VA · Grass airstrip
- Coordinates: 38.401731, -79.597984 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.4017&lon=-79.5980&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-flare/touchdown: Landing area overshoot](https://openairdocs.org/ntsb-events/380)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 4, 2025
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Eastern Region Aviation
- Parties: FAA/FSDO
- NTSB case key (mKey): 201048
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA25LA355
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/201048/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=201048
- Page: https://openairdocs.org/ntsb/ERA25LA355

## Probable cause

The pilot’s failure to attain a proper touchdown point while landing, which resulted in a runway overrun.

## Findings

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

- [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Lamphere David A WITTMAN BUTTERCUP, 1 case](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=056387B), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md)
- [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Lamphere David A WITTMAN BUTTERCUP, 1 case](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=056387B), [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-flare/touchdown: Landing area overshoot](https://openairdocs.org/ntsb-events/380) (defining event); cases with it: [Lamphere David A WITTMAN BUTTERCUP, 1 case](https://openairdocs.org/ntsb-events/380/sequence.md?model=056387B), [All aircraft, 400 cases](https://openairdocs.org/ntsb-events/380/sequence.md)
- [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Lamphere David A WITTMAN BUTTERCUP, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=056387B), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)

## Analysis

The pilot reported that he overflew the airport to observe the runway and wind direction before beginning a final approach. During the landing on the 2,300-ft-long turf runway, the airplane floated and landed more than halfway down the runway. He applied the brakes but was unable to stop. The airplane exited the runway, descended an embankment, and impacted a vacant concrete building before coming to rest in a grassy area about 180 ft from the departure end of the runway. The airplane’s fuselage and left wing sustained substantial damage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

## Aircraft

- Registration: [N365ED](https://openairdocs.org/deregistered/N365ED-2025-12-20), registration cancelled 2025-12-20, S/N DAL002, built 2020 (OpenAirDocs)
- Reported make and model: LAMPHERE DAVID A WITTMAN BUTTERCUP
- Registry model: [Lamphere David A WITTMAN BUTTERCUP](https://openairdocs.org/model/lamphere-david-a-wittman-buttercup) (registry code 056387B) (OpenAirDocs)
- Registry engine: [Lycoming O-320-E2D](https://openairdocs.org/engine/lycoming-o-320-e2d) (registry code 42123, 4 cycle) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: DAL002
- Year built: 2020
- Airframe hours: 196.8
- Engines: LYCOMING O-320-E2D 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Condition, February 24, 2025, 35.6 hours before
- Departed: CJR, Culpeper, VA
- Destination: Same as departure
- Airport: 7VA9, HANNAH Field, runway 04, 2,300 × 75 ft, grass/turf
- Equipment: Electronic primary flight display, Electronic flight bag or handheld device, ADS-B

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 77; injuries: none; private; airplane ratings: single-engine land; medical: basicmed; last flight review July 22, 2025; seat: left; restraint: 4-point; flight hours: 1,649.4 total, 197.8 in this make and model, 162,706 as pilot in command, 14.1 in the last 90 days, 4 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 54 °F, dew point 54 °F
- Altimeter: 30.12 inHg
- Observed at: SHD, 34 nm away
- METAR: 	

KSHD 191215Z AUTO 00000KT 10SM CLR 12/12 A3012 RMK AO2 T01160116

## 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 20250919018359A](https://openairdocs.org/incident/20250919018359A), Sep 19, 2025: Lamphere David A WITTMAN BUTTERCUP, Dayton, VA, Substantial damage. On approach to runway 4 at Hannah airfield, the pilot realized he was high and fast. He bounced at the halfway point and did not attempt a go around. He…

## Docket (2 files)

The files NTSB released with the investigation on December 4, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=201048. 3.2 MB in all.

- Investigation photographs (item 1, PDF, 3 pages, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19314174&FileExtension=pdf&FileName=Photo%20Array-Rel.pdf
- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 2, PDF, 10 pages, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19335947&FileExtension=pdf&FileName=NTSB%206120%201%20Form_Redacted-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.

---
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.