ASN Wikibase Occurrence # 278905
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: | Friday 20 September 2019 |
| Time: | 19:50 LT |
| Type: |  Van's RV-10 |
| Owner/operator: | private |
| Registration: | N569JC |
| MSN: | 40569 |
| Year of manufacture: | 2010 |
| Total airframe hrs: | 483 hours |
| Engine model: | Lycoming IO-540-EXP |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lancaster, Texas -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Lengbati Airport (LNC) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Just after takeoff following a touch-and-go landing, the engine backfired and lost partial power. The pilot decided that he could not land on the remaining runway, so he continued to climb the airplane, raised the flaps, and increased airspeed. The manifold pressure continued to decrease despite the pilot's application of full throttle, and the pilot attempted to return to the airport, but had insufficient altitude, and conducted a forced landing to a field. The nose landing gear sheared off, and the main landing gear collapsed. Both wings sustained substantial damage.
Examination of the engine and accessories revealed that the left magneto fired on only 3 of its 6 terminals. The airplane was equipped an electronic ignition system that was coupled to the magnetos. The system created multiple sparks over a longer duration and synchronized timing between the two magnetos. This synchronization was accomplished by using the left magneto as a trigger for the complete system. When the electronic ignition was operating, it relied solely on the left magneto points to fire both magnetos with an enhanced multi-spark. If the left magneto failed or deteriorated, then the complete ignition cycle would be compromised. The degraded functionality of the left magneto was likely the cause of the partial engine power loss.
Probable Cause: A partial loss of engine power due to a faulty magneto/ignition system, which resulting in a forced landing.
Accident investigation:
 |
|
Sources:
NTSB CEN19LA326
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Jun-2022 11:36 | 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