ASN Wikibase Occurrence # 36536
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| Date: | Tuesday 8 November 1994 |
| Time: | 20:13 LT |
| Type: |  Cessna 172N |
| Owner/operator: | Kennewick Aircraft, Inc. |
| Registration: | N584WA |
| MSN: | 17271944 |
| Total airframe hrs: | 8433 hours |
| Engine model: | Lycoming O-360-A4M |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Klamath Falls, OR -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Hermiston, OR (S22) |
| Klamath Falls, OR | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PRIVATE PILOT, WHO WAS NOT INSTRUMENT RATED, RECEIVED AN ACCURATE WEATHER BRIEFING FOR A CROSS COUNTRY BUSINESS FLIGHT OVER MOUNTAINOUS TERRAIN AT NIGHT. DURING THE FLIGHT, THE WEATHER CONDITIONS WORSENED, AS FORECAST. THE PILOT WAS TOLD OF THE WORSENING CONDITIONS. HE REPORTED TO AIR TRAFFIC CONTROL (ATC) THAT HE WAS ENTERING OBSCURATION AND EVENTUALLY LOST GROUND CONTACT. THE REPORTED WEATHER CONDITIONS NEAR THE ACCIDENT SITE INDICATED THAT THE CLOUDS, SNOW, AND GUSTING WINDS EXISTED AT THE ALTITUDE THE AIRPLANE WAS FLYING. ATC PROVIDED VECTORS, BUT THE PILOT GRADUALLY DESCENDED AND VEERED TOWARD RISING TERRAIN. THE PILOT STATED THAT THE AIRPLANE THEN ENCOUNTERED A STRONG DOWNDRAFT AND THAT HE COULD NOT CLIMB FASTER THAN THE RISING TERRAIN. THE AIRPLANE IMPACTED A TREE NEAR THE 7,200 FOOT LEVEL OF A MOUNTAIN. THE PILOT WAS SERIOUSLY INJURED AND WAS RESCUED 22 HOURS AFTER THE ACCIDENT. THE PASSENGER WAS FATALLY INJURED. NO PRE-IMPACT MECHANICAL MALFUNCTIONS WERE REPORTED.
Probable Cause: THE VFR PILOT'S ATTEMPT TO CONTINUE THE FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS, AND HIS FAILURE TO MAINTAIN ALTITUDE/CLEARANCE WITH THE MOUNTAINOUS TERRAIN BELOW HIM. CONTRIBUTING TO THE ACCIDENT WAS A DOWNDRAFT.
Accident investigation:
 |
|
Sources:
NTSB SEA95FA018
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] |
| 09-Apr-2024 18:23 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Destination airport, Source, Narrative, Category, Accident report] |
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