NTSB Identification: LAX82FA109
14 CFR Part 91: General Aviation
Accident occurred Tuesday, March 16, 1982 in 12 N.E. BURBANK, CA
Probable Cause Approval Date: 03/16/1983
Aircraft: CESSNA 340A, registration: N98546
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.

AFTER TAKEOFF, THE PILOT WAS CLEARED TO PROCEED ON AN IFR FLIGHT PLAN. AFTER BEING CLEARED TO 15,000 FT MSL, HE REPORTED HAVING TROUBLE MAINTAINING HIS AIRSPEED AND SUBSEQUENTLY DECLARED AN EMERGENCY. SHORTLY AFTER THAT, RADAR CONTACT WAS LOST. THE AIRCRAFT IMPACTED AT NIGHT NEAR THE TOP OF A MOUNTAIN RIDGE AT ABOUT 4700 FT MSL. THE WRECKAGE WAS DEMOLISHED AND SCATTERED OVER A LARGE AREA, BUT THERE WAS NO EVIDENCE OF AN INFLIGHT BREAKUP. SOME PARTS OF THE WRECKAGE (INCLUDING THE RIGHT ENGINE) WERE NOT FOUND ON THE SNOW COVERED TERRAIN. THE WEATHER FORECAST CALLED FOR: THUNDERSTORMS IN LINES, MOUNTAINS OBSCURED, MODERATE AND OCCASIONALLY SEVERE TURBULENCE BELOW 20,000 FT, OCCASIONAL MODERATE ICING IN CLOUDS AND IN PRECIPITATION FROM THE FREEZING LEVEL (3000 FT) TO 20,000 FT. THE AIRCRAFT WAS NOT CERTIFIED FOR FLIGHT IN KNOWN ICING CONDITIONS.

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

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..ATTEMPTED..PILOT IN COMMAND

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

WING..ICE


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..CLOUDS


Contributing Factors

WEATHER CONDITION..RAIN


Contributing Factors

WEATHER CONDITION..ICING CONDITIONS


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY

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