ASN Wikibase Occurrence # 43579
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| Date: | Sunday 26 October 2008 |
| Time: | 12:30 |
| Type: | Naval Aircraft Factory N3N-3 |
| Owner/operator: | Private |
| Registration: | N44848 |
| MSN: | 4477 |
| Total airframe hrs: | 2713 hours |
| Engine model: | Lycoming R680 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Rialto, CA -
 United States of America
|
| Phase: | Standing |
| Nature: | Private |
| Departure airport: | Rialto, CA (L67) |
| Riverside, CA (RIR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot performed a preflight inspection of the company airplane in preparation for a local area round-robin flight. After all systems appeared to function normally, the pilot took off and flew to his first intended landing site. Then, the pilot took off for the return flight. According to the pilot, during the ensuing takeoff, the "engine power output and acceleration were normal." However, upon climbing about 150 feet above the runway, "the engine smoothly lost power....The power loss felt like the throttle lever [was] being smoothly closed from takeoff power to idle. There was no engine roughness, vibration, or perceived reduced power output preceding the loss of power, and no backfiring or sputtering [was] associated with the power loss." The pilot made a forced landing in an open field ahead of the airplane. The airplane collided with vegetation during the landing rollout. A teardown examination of the airplane's carburetor was performed, and internal anomalies were found regarding its assembly. The main fuel jets were found too small for the engine application, and the mixture shaft was improperly keyed and/or out of alignment with its respective track. This anomaly likely resulted in unreliable mixture settings and an interruption of fuel flow to the engine.
Probable Cause: A total loss of engine power during initial climb due to an interruption in fuel flow through an improperly assembled carburetor.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 03-Dec-2017 12:08 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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