ASN Wikibase Occurrence # 131924
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| Date: | Monday 12 July 1993 |
| Time: | 20:01 LT |
| Type: | Bowers Flybaby 1A |
| Owner/operator: | Robert C. Schultz |
| Registration: | N4295X |
| MSN: | 1924 |
| Total airframe hrs: | 24 hours |
| Engine model: | FRANKLIN 4AC 176B2 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Conneaut, OH -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Jefferson, OH (7G2) |
| (7G2) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN CRUISE, THE AIRPLANE'S ENGINE LOST PARTIAL POWER. THE PILOT STATED HE WAS OVER A FIELD AND DECIDED TO CIRCLE AND LAND IN THE FIELD. THE PILOT STATED THAT DURING THE SECOND TIME HE WENT AROUND THE FIELD, DOWNWIND, THE AIRPLANE'S ENGINE LOST TOTAL POWER. THE AIRPLANE IMPACTED A BERM ON THE SIDE OF A ROAD JUST SHORT OF THE FIELD. WITNESSES TO THE ACCIDENT STATED THAT PRIOR TO THE AIRPLANE IMPACTING THE BERM, THE ENGINE WAS 'MISSING.' POST ACCIDENT EXAMINATION OF THE AIRFRAME DID NOT REVEAL ANY ANOMALIES. THE COCKPIT MAGNETO SWITCH WAS SELECTED TO THE LEFT MAGNETO. THE ENGINE WAS INSPECTED AND THE LEFT MAGNETO HIGH TENSION LEAD WAS FOUND CORRODED WITH GEAR GREASE CAUSING INTERMITTENT ARCING. SPARK PLUGS ON THE NUMBER 2 AND 3 CYLINDERS WERE FOUND TO BE SOOTY AND THE SPARK PLUGS ON THE NUMBER 1 AND 4 CYLINDERS APPEARED 'NOT TO BE FIRING.' THE PILOT STATED THAT HE DID NOT LEAVE THE MAGNETO SWITCHED TO THE 'LEFT' POSITION AND THAT IT MUST HAVE BEEN MOVED DURING THE IMPACT SEQUENCE.
Probable Cause: OPERATIONAL FAILURE OF THE LEFT MAGNETO'S HIGH TENSION WIRING DUE TO GREASE/CORROSION, WHICH RESULTED IN A PROGRESSIVE POWER LOSS AND SUBSEQUENT FORCED LANDING.
Accident investigation:
 |
|
Sources:
NTSB BFO93LA122
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 12:36 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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