ASN Wikibase Occurrence # 43461
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Date: | Thursday 8 November 1990 |
Time: | 16:45 |
Type: | Aeronca 7BCM |
Owner/operator: | Fredric G Nuckles |
Registration: | N7702B |
MSN: | 7BCM-288 |
Total airframe hrs: | 2040 hours |
Engine model: | CONTINENTAL C-85-8F |
Fatalities: | Fatalities: 2 / Occupants: 2 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Suffolk, VA -
United States of America
|
Phase: | Take off |
Nature: | Private |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE ACFT WAS CLIMBING OUT AFTER THE SECOND TOUCH-AND-GO LANDING, WHEN WITNESSES REPORTED HEARING POPPING NOISES FROM THE ENGINE. THE ACFT NOSED DOWN, DESCENDED, AND CRASHED IN A WOODED AREA ABOUT 1,000 FT PAST THE END OF THE RWY. INVESTIGATION REVEALED A COMPRESSION TEST READING OF 17/80 FOR THE #2 CYLINDER; THE EXHAUST VALVE GUIDE AND SEAT WERE MISALIGNED. IN ADDITION, ALL THE ENGINE INTAKE CONNECTOR HOSES WERE DRY-ROTTED, THE SPARK PLUGS APPPEARED TO BE GAPPED TOO TIGHTLY, AND ONE LEAD WAS NOT PROPERLY INSTALLED. THE LAST ANNUAL INSPECTION WAS DONE ABOUT A WEEK BEFORE THE ACCIDENT, AND THE ACFT HAD OPERATED ABOUT 15 HRS SINCE THEN. CAUSE: A LOSS OF ENGINE POWER DUE TO LOW CYLINDER COMPRESSION. THE LOW COMPRESSION WAS A RESULT OF EXHAUST VALVE LEAKAGE AND INADEQUATE MAINTENANCE AND INSPECTION. IN ADDITION, THE PILOT FAILED TO MAINTAIN ADEQUATE AIRSPEED WHICH RESULTED IN THE AIRPLANE STALLING.
Sources:
NTSB:
http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X24570 Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
21-Dec-2016 19:24 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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