NTSB Identification: LAX94FA185.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Saturday, April 09, 1994 in JULIAN, CA
Probable Cause Approval Date: 04/07/1995
Aircraft: CESSNA 172N, registration: N6242D
Injuries: 1 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.

IN A BRIEFING ON 4/8/94, THE PILOT(S) WERE ADVISED OF FORECAST FRONTAL ACTIVITY, GUSTY WINDS & TURBULENCE BELOW 15,000' ALONG THE ROUTE. THE INSTRUMENT STUDENT SAID THAT DURING FLIGHT ON 4/9/94, THEY ENTERED IFR CONDITIONS AT 8000' & HE WAS UNABLE TO MAINTAIN ALTITUDE DUE TO DOWNDRAFTS. THE INSTRUCTOR (CFII) TOOK THE CONTROLS & WAS ALSO UNABLE TO GAIN OR MAINTAIN ALTITUDE. HE ADVISED THE AIR TRAFFIC CONTROLLER (ATC) OF THE PROBLEM & WAS CLEARED DOWN TO 7000'. SOON THEREAFTER, HE TOLD ATC THE PLANE WAS DESCENDING IN A DOWNDRAFT THROUGH 6300'. ATC ADVISED THE FLIGHT OF A LOW ALTITUDE ALERT & ASKED THEM TO MAINTAIN 7000'. THE CFII REPLIED THAT HE WAS TRYING & ASKED FOR A RADAR VECTOR. ATC WARNED THAT THE FLIGHT WAS BELOW MINIMUM VECTORING ALTITUDE & TO CLIMB AS SOON AS POSSIBLE. THE DESCENT COULD NOT BE STOPPED & THE PLANE COLLIDED WITH A MOUNTAINSIDE AT THE 4800' LEVEL. PERSONNEL IN A NEARBY CABIN SAID THEY WERE ENVELOPED IN A FAST MOVING CLOUD BANK WITH HIGH WINDS. NO PREIMPACT MECHANICAL FAILURE WAS FOUND, ALTHOUGH THE AIRCRAFT WAS DAMAGED BY IMPACT & GROUND FIRE.

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

IMPROPER PLANNING/DECISION BY THE PILOT(S). FACTORS RELATED TO THE ACCIDENT WERE: THE HIGH/MOUNTAINOUS TERRAIN AND ADVERSE WEATHER CONDITIONS.

Full narrative available

Index for Apr1994 | Index of months