ASN Wikibase Occurrence # 295590
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Wednesday 2 July 2003 |
| Time: | 21:42 LT |
| Type: | Viking Dragonfly Mk II |
| Owner/operator: | Mark Felling |
| Registration: | N25JD |
| MSN: | 1 |
| Total airframe hrs: | 68 hours |
| Engine model: | Revmaster R2100D |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Eden Prairie, Minnesota -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Minneapolis-Flying Cloud Airport, MN (FCM/KFCM) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was seriously injured and the experimental amateur-built airplane was destroyed when it impacted trees and terrain during a forced landing following a loss of engine power after takeoff. The amateur-built airplane was powered by a Volkswagen derived automobile engine with capacitive discharge ignition and a slide type carburetor. According to the manufacturer, the carburetor is not susceptible to carburetor icing because it does not incorporate a venturi. During an interview, the pilot stated that he had aircraft control during the forced landing. He stated that he had previous problems with the carburetor, and his internet website also listed problems, repairs and modifications made to the carburetor. The website indicated that the carburetor needle had been replaced, the carburetor slide had been modified and the throttle cable had been replaced. The website indicated that the mixture was "sensitive" and leaning was required in cruise flight or the "engine sputters from being too rich!" The website also states that the mixture during landing rollout "seems quite rich and [the engine] likes to die out" A section of the website titled "Repairs / Improvements to be made but are not stopping flight", listed "Continue to refine mixture / carb settings" as a listed item. Postaccident examination of the airplane revealed that the engine could be rotated, valve train continuity was confirmed and each cylinder produced "thumb compression." The ignition system was not tested. The linkages to the carburetor were damaged during the impact; however, no pre-impact defects could be found.
Probable Cause: The pilot's intentional operation of the airplane with a known deficiency with regard to an improper carburetor calibration that led to the loss of engine power. The improperly calibrated carburetor and the trees were contributing factors.
Accident investigation:
 |
|
Sources:
NTSB CHI03LA192
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Oct-2022 10:19 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation