ASN Wikibase Occurrence # 37710
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| Date: | Sunday 28 March 1993 |
| Time: | 22:50 LT |
| Type: |  Piper PA-23-250 Aztec |
| Owner/operator: | Ryan, Lawrence J. |
| Registration: | N63888 |
| MSN: | 27-7854033 |
| Engine model: | Lycoming IO-540-C4B5 |
| Fatalities: | Fatalities: 4 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Estacada, OR -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Portland, OR (KTTD) |
| Corvalis, OR (KCVO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRCRAFT DEPARTED THE TROUTDALE AIRPORT ON A DARK NIGHT. AFTER TAKEOFF, THE PILOT PROCEEDED ALONG A COURSE THAT TOOK THE AIRCRAFT TOWARD RISING TERRAIN. IT EVENTUALLY IMPACTED TREES ON MOUNTAINOUS TERRAIN DURING A CLIMBING RIGHT TURN. THE RIGHT TURN WAS BRINGING THE HEADING OF THE AIRCRAFT TOWARD A COURSE WHICH WOULD HAVE BEEN MORE CONSISTENT WITH A ROUTE TO THE INTENDED DESTINATION. IMPACT OCCURRED AT AN ELEVATION OF ABOUT 4200 FEET. ABOUT 30 MILES NORTHWEST AT THE DEPARTURE AIRPORT (ELEVATION 35 FEET), THE 2146 WEATHER WAS IN PART: 3500' BROKEN, 15 MILES VISIBILITY, WIND FROM 270 DEGREES AT 8 KNOTS.
Probable Cause: FAILURE OF THE PILOT TO MAINTAIN PROPER CLEARANCE (AND/OR ALTITUDE) FROM MOUTAINOUS TERRAIN. FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS, CLOUDS, LOW CEILINGS, AND THE HIGH (MOUNTAINOUS) TERRAIN IN THE AREA OF THE ACCIDENT SITE.
Accident investigation:
 |
|
Sources:
NTSB SEA93FA084
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 15:07 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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