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Accidents · NTSB WPR23LA101 · Final report

Cub Crafters INC CC18-180 accident near Dallesport, Washington, January 29, 2023

On January 29, 2023 at about 8:30 pm local time, a 2011 Cub Crafters INC CC18-180, registered N127DT, was substantially damaged in an accident during takeoff near Dallesport, Washington. It was an instructional flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

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The NTSB's probable cause their words, unchanged

The flight instructor’s failure to see and avoid a channel marker during a step taxi in preparation for takeoff on the water.

Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.

What the record shows

Date
January 29, 2023 · about 8:30 pm local time
Place
Dallesport, Washington · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cub Crafters INC CC18-180 CC18-0051, built 2011 · all CC18-180s on the register
Registration
N127DT · no longer on the register · serial CC18-0051
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The flight instructor of an amphibious float-equipped airplane reported that, he was demonstrating to the student pilot a water landing and step taxi from the back seat. While in the step taxi and preparing to takeoff, the student alerted the flight instructor to a channel hazard marker directly in front of the airplane. The flight instructor was unable to respond before the left wing and left side float collided with the marker about a second later. The left wing and left side float separated from the fuselage resulting in substantial damage. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Collision during takeoff/land during takeoff defining event

The NTSB's findings

  • Personnel issues › Psychological › Attention/monitoring › Monitoring environment › Pilot
  • Environmental issues › Physical environment › Object/animal/substance › Sign/marker › Ability to respond/compensate

Pilot

  • Certificate: flight instructor
  • Ratings: single-engine land; single-engine sea; instructor: airplane single-engine; instrument: airplane
  • Flight time: 2,751 hours in all; 884.2 in this make and model; 92.1 in the last 90 days; 30.6 in the last 30 days; 2,661.6 as pilot in command; 2,013 on instruments
  • Last flight review: August 4, 2021
  • Medical certificate: Class 1 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

Passenger

  • Seat: frt
  • Injury: no injuries

The aircraft

  • Airframe total time: 924 hours
  • Last inspection: annual inspection, November 2, 2022; 16.6 hours since
  • Maximum gross weight: 2,300 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-360-C4P (piston); 924 hours total

The flight

  • Departed from: KDLS Dallesport WA at 8:00 pm
  • Flight plan: none
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 260° at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 30°F (-1°C), dew point 10°F (-12°C)
  • Altimeter: 30.56 inHg
  • Observation at 12:53 pm from KDLS, 15 miles away

Weather report (METAR): METAR KDLS 292053Z AUTO 26006KT 10SM CLR M01/M12 A3056 RMK AO2 SLP353 T10061122 58004

Injuries

FatalSeriousMinorNone
Flig2

Other NTSB records under N127DT the same tail number, which may have belonged to a different aircraft at the time

2018-01-12GAA18CA101 · accident near Winnimucca, NV · substantial damage · no injuries

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number WPR23LA101.