ASN Wikibase Occurrence # 37735
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| Date: | Saturday 9 April 1994 |
| Time: | 11:08 LT |
| Type: |  Cessna 172N |
| Owner/operator: | Darin Christenson |
| Registration: | N6242D |
| MSN: | 17272659 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 4225 hours |
| Engine model: | Lycoming O-320-H2AD |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Julian, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Yuma, AZ (KYUM) |
| Carlsbad, CA (KCRQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
Probable Cause: IMPROPER PLANNING/DECISION BY THE PILOT(S). FACTORS RELATED TO THE ACCIDENT WERE: THE HIGH/MOUNTAINOUS TERRAIN AND ADVERSE WEATHER CONDITIONS.
Accident investigation:
 |
|
Sources:
NTSB LAX94FA185
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 08:08 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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