NTSB Identification: LAX83FA091.
The docket is stored on NTSB microfiche number 20374.
Accident occurred Saturday, February 05, 1983 in LAS VEGAS, NV
Aircraft: CESSNA 177RG, registration: N1547H
Injuries: 3 Fatal.

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.

THE ACFT COLLIDED WITH A MOUNTAIN DURING A NIGHT CROSS-COUNTRY. THE WEATHER WAS VMC AT TAKEOFF BUT BECAME IMC LATER NEARTHE MOUNTAINS. A VFR FLIGHT PLAN WAS FILED BUT NEVER OPENED.THE PILOT CONTINUED FLIGHT INTO AN AREA OF KNOWN IMC CONDITIONS. HE HAD RETURNED TO LAS VEGAS ONCE AND ASKED FOR MORE WEATHER BRIEFING. SHORTLY AFTER HIS SECOND DEPARTURE, AT NIGHT HE ASKED FOR ATC HELP FOR SEPARATION THROUGH LAS VEGAS, CA. HE WAS OBSERVED CLIMBING IN HEAVY RAIN. ABOUT 15 MINUTES LATER AT 1226, HE REPORTED NAVIGATIONAL PROBLEMS. ATC GAVE HIM A HEADING FOR A RETURN. ATC PERSONNEL OBSERVED THAT THE AIRCRAFT COMMENCED A TURN WHICH TIGHTENED AND THEN THE TARGET DISAPPEARED FROM THE RADAR SCOPE. THE AIRCRAFT IMPACTED ABOUT 65 FT BELOW A RIDGE LINE AT AN ELEVATION OF ABOUT 3500 FT MSL. IT IMPACTED RISING TERRAIN WITH THE RIGHT WING FIRST, THE AIRCRAFT TRAVELED 58 FT UPSLOPE BEFORE COMING TO REST. MOUNTAIN TOPS IN THE AREA WERE OBSCURED.

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

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

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..RAIN


Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN


Contributing Factors

WEATHER CONDITION..CLOUDS

Index for Feb1983 | Index of months