NTSB Identification: LAX87LA067.
The docket is stored on NTSB microfiche number 31985.
Accident occurred Sunday, December 21, 1986 in CHICO, CA
Aircraft: CESSNA 172M, registration: N64533
Injuries: 4 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

DURING AN ILS APCH TO RWY 13L, THE PLT THINKING HE WAS AT THE MISSED APCH POINT COLLIDED WITH THE TERRAIN 200 YRDS WEST OF THE ARPT. THE ROUTE OF FLT WAS DETERMINED TO BE IN A NORTH WESTERLY DIRECTION. EXAM OF THE NAVIGATIONAL INSTRUMENTS REVEALED THAT THE NUMBER TWO NAVIGATIONAL RADIO WAS TUNED TO AN INCORRECT FREQ. THE PLT HAD RETURNED TO THE ACFT AFTER THE ACCIDENT AND TRIED TO MAKE RADIO CONTACT WITH NEARBY FACILITIES. HE DOES NOT REMEMBER IF HE CHANGED THE NAVIGATIONAL FREQS.

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

PROPER ALIGNMENT..NOT IDENTIFIED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..BELOW APPROACH/LANDING MINIMUMS


Contributing Factors

FLIGHT INTO KNOWN ADVERSE WEATHER..PERFORMED..PILOT IN COMMAND


Contributing Factors

IN-FLIGHT WEATHER ADVISORIES..NOT ATTAINED..PILOT IN COMMAND


Contributing Factors

LACK OF TOTAL INSTRUMENT TIME..PILOT IN COMMAND


Contributing Factors

MISSED APPROACH..IMPROPER..PILOT IN COMMAND

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