ASN Wikibase Occurrence # 165432
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| Date: | Saturday 12 April 2014 |
| Time: | 11:00 |
| Type: |  Ercoupe 415-C |
| Owner/operator: | Demarco Albert |
| Registration: | N2788H |
| MSN: | 3413 |
| Year of manufacture: | 1946 |
| Total airframe hrs: | 2235 hours |
| Engine model: | Continental C85 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | North of Tenkiller Lake Airpark (44M), Cookson, OK -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Cookson, OK (44M) |
| Etna, AR (None) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot-rated passenger reported that he and the pilot aborted the first takeoff attempt due to a loss of engine power. They taxied the airplane back to the departure end of the runway and applied full and partial power several times but were unable to duplicate the engine problem, so the pilot chose to take off again. Shortly after the airplane became airborne, the engine lost power, and the pilot subsequently landed the airplane in wooded terrain.
A postaccident examination of the airplane and engine revealed that the fuel tanks were breached during impact; however, some fuel was found in the header tank and gascolator. The carburetor inlet fitting had broken off at impact, and the carburetor bowl was empty. The mixture arm was separated from the carburetor and not safety-wired in the full-rich position. The Nos. 1 and 3 plugs were found blackened. The engine was manually rotated via the propeller, and valve train continuity was established. The primer was found unlocked and partially pulled out. An unsecured primer can cause the engine to run richer than normal, which could result in a rough-running engine, loss of power, and blackened spark plugs.
Probable Cause: The pilot’s failure to properly secure the primer, which resulted in the loss of engine power during takeoff.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=2788H
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Apr-2014 20:15 | Geno | Added |
| 14-Apr-2014 00:09 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Source, Damage, Narrative] |
| 17-Apr-2014 12:06 | Anon. | Updated [Registration] |
| 25-Apr-2014 21:41 | Geno | Updated [Time, Phase, Nature, Destination airport, Source] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 14:02 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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