NTSB Identification: LAX90FA138.
The docket is stored on NTSB microfiche number 44637.
Accident occurred Saturday, April 07, 1990 in KNEELAND, CA
Probable Cause Approval Date: 05/15/1992
Aircraft: BEECH A36, registration: N3674B
Injuries: 3 Fatal,1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

WHILE EN ROUTE FROM SACRAMENTO TO ARCATA, CA, THE PLT CONTACTED ARTCC & FILED AN IFR FLT PLAN. AS HE WAS APCHG THE DESTN AT 10,000', HE REQUESTED A LOWER ALT. HE WAS CLEARED TO DSCND TO 8000'. HE WAS THEN CLEARED FOR AN ILS RWY 32 APCH TO AN UNCTLD ARPT AT ARCATA WITH A RESTRICTION TO REMAIN AT 8000' UNTIL CROSSING THE YAGER INTXN. THE PLT BGN HIS DSCNT EARLY & CROSSED THE YAGER INTXN AT 6700. THE ACFT DSCNDD BELOW RADAR COVERAGE AT 5300'. RADAR SVC WAS TERMINATED & THE PLT WAS INSTRUCTED TO CONTACT THE ARCATA FSS. HE CONTACTED THE FSS STATION & WAS ADZD THE WX WAS PARTIALLY OBSCD, 400' BKN, 1500' BKN, 2400' OVC, 3 MI VIS. THE PLT ACKNOWLEDGE & SAID HE WAS IN THE CLOUDS AT 3200', THEN THERE WAS NO FURTHER CONTACT WITH THE ACFT. A SEARCH WAS INITIATED & THE ACFT WAS FOUND WHERE IT HAD CRASHED ALONG THE ILS COURSE LINE ABOUT 18 MI SHORT OF THE RWY. IMPACT OCCURRED ON HILLY/MOUNTAINOUS TERRAIN AT AN ELEV OF ABOUT 2750'. THE MIN DSCNT ALT FOR THAT SEGMENT OF THE APCH WAS 5200'.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

THE PILOT'S IMPROPER USE OF IFR PROCEDURES BY FAILING TO MAINTAIN THE MINIMUM DESCENT ALTITUDE FOR THE SEGMENT OF THE APPROACH THAT HE WAS FLYING. THE HILLY/MOUNTAINOUS TERRAIN WAS A RELATED FACTOR.

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