ASN Wikibase Occurrence # 165977
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| Date: | Saturday 3 May 2014 |
| Time: | 09:15 |
| Type: |  Bell 47G |
| Owner/operator: | Private |
| Registration: | N7895B |
| MSN: | 1706 |
| Year of manufacture: | 1958 |
| Total airframe hrs: | 2726 hours |
| Engine model: | Franklin 6V4 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | South of El Monte Airport (KEMT) El Monte, California -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | EL MONTE, CA (EMT) |
| Compton, CA, CA (CPM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, during climbout, the engine experienced a partial loss of power, the helicopter shook violently, and the engine then made a couple of “popping” sounds. He immediately initiated a precautionary landing to an open field. During the landing, the right skid caught on the ground, and the helicopter then rolled onto its right side.
During postaccident functional tests, the left magneto and the No. 5 cylinder’s spark plugs did not function properly. No further evidence of mechanical malfunctions or failures that would have precluded normal operation were observed. Therefore, it is likely that the malfunctioning left magneto and spark plugs caused the partial loss of engine power.
Probable Cause: A partial loss of engine power during climbout due to a malfunctioning magneto and spark plugs.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-May-2014 07:03 | Útila | Added |
| 04-May-2014 07:03 | harro | Updated [Aircraft type, Registration, Cn] |
| 14-May-2014 22:19 | Geno | Updated [Operator, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 14:22 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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