Accident Cessna 206 N4687F, Sunday 12 December 1982

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Date:	Sunday 12 December 1982
Time:	09:38 LT
Type:	Cessna 206
Owner/operator:	Heisey, Walter Floyd
Registration:	N4687F
MSN:	P206-0287
Total airframe hrs:	3854 hours
Engine model:	Continental IO-520-A
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Merced, CA - United States of America
Phase:	Approach
Nature:	Private
Departure airport:	Bakersfield, CA (C )
Destination airport:	Merced, CA (C )
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE TRANSCRIPT REVEALED THAT THE PLT WAS CLEARED FOR AN ILS RWY 30 APCH APPROXIMATELY 2 MI FROM THE OUTER MARKER. THE WX GIVEN TO THE PLT AT THAT TIME WAS INDEFINITE CEILING ZERO, SKY OBSCURED & VISIBILITY ZERO WITH FOG. THE PLT STATED AN INSTRUMENT APCH WAS PLANNED BUT A CLEAR AREA WAS OBSERVED SOUTH OF THE ARPT. THE CLEAR AREA WAS ENTERED & AN ATTEMPT MADE TO FLY TO THE ARPT BENEATH THE FOG. THE ACFT STRUCK A UTILITY POLE WEST OF THE RWY 30 LOCALIZER COURSE, CIRCLED LEFT & CRASHED. THE ACFT'S GLIDE SLOPE RECEIVER SENSITIVITY WAS FOUND TO BE BELOW THE MANUFACTURER'S SPECIFICATIONS, WHICH WOULD HAVE RESULTED IN A GLIDE SLOPE "OFF" INDICATION IN THE COCKPIT.

Probable Cause:

Accident investigation: