Accident Stokes SMITH DSA-1 N33BS,
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ASN Wikibase Occurrence # 358895
 
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Date:Thursday 8 June 1995
Time:15:15 LT
Type:Stokes SMITH DSA-1
Owner/operator:Private
Registration: N33BS
MSN: 100
Engine model:LYCOMING O-320-A2B
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Brookshire, TX -   United States of America
Phase: Initial climb
Nature:Private
Departure airport:Waller, TX
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE PILOT REPORTED THAT THE ENGINE LOST POWER DURING THE INITIAL CLIMB AFTER TAKEOFF AND COLLIDED WITH A RICE LEVEE DURING THE FORCED LANDING. THE BUILDER/OWNER/PILOT HOLDS AN FAA AIRCRAFT REPAIRMAN CERTIFICATE AND PERFORMED THE MAINTENANCE ON THE AIRPLANE INCLUDING THE LAST ANNUAL INSPECTION THE DAY BEFORE THE ACCIDENT. THE FACTORY REMANUFACTURED MAGNETOS (BENDIX MODEL S4LN21 P/N 10- 51360-30; S/N 321336 AND 321337) HAD BEEN INSTALLED SINCE JUNE 10, 1988. FOLLOWING A LOSS OF ENGINE POWER, EXAMINATION OF THE MAGNETOS REVEALED 'HEAVILY CORRODED COILS.' THE LEFT MAGNETO COIL 'FAILED THE RESISTANCE CHECK.' GROUND LEAD TO HIGH TENSION RESISTANCE 'READ .85 OHM'; ACCORDING TO THE MANUFACTURER IT SHOULD READ '12,000 TO 16,000 OHMS.' THIS WAS THE PILOT'S 'THIRD FORCED LANDING DUE TO ENGINE FAILURE.' PRIOR TROUBLESHOOTING BY THE BUILDER DID NOT LEAD TO MAGNETO TEARDOWN.

Probable Cause: OWNER/BUILDER'S INADEQUATE MAINTENANCE RESULTING IN A LOSS OF ENGINE POWER DUE TO CORRODED MAGNETO COILS. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

Accident investigation:
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Investigating agency: NTSB
Report number: FTW95LA237
Status: Investigation completed
Duration: 5 months
Download report: Final report

Sources:

NTSB FTW95LA237

History of this aircraft

Other occurrences involving this aircraft
12 October 1982 N28M Stephen 7 Vicki Willoughby 0 Lexington, MO w/o

Location

Revision history:

Date/timeContributorUpdates
14-Mar-2024 19:22 ASN Update Bot Added

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