Accident Piper PA-34-220T N83809,
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ASN Wikibase Occurrence # 38078
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Date:Wednesday 31 January 1996
Time:22:55 LT
Type:Silhouette image of generic PA34 model; specific model in this crash may look slightly different    
Piper PA-34-220T
Owner/operator:Rocky Mountain Propellers, Inc
Registration: N83809
MSN: 34-8133085
Total airframe hrs:3545 hours
Engine model:Continental TSIO-360-KB
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Destroyed
Location:Estes Park, CO -   United States of America
Phase: Unknown
Departure airport:Erie, CO (48V)
Destination airport:Boise, ID (KBOI)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The pilot filed an IFR flight plan and made a night departure from Erie, Colorado, en route to Boise, Idaho. After receiving his IFR clearance in flight, he requested a VFR-on-top clearance and 'a vector heading for (Rock Springs, Wyoming)...just to verify...a radar vector heading just to check that...I'm having a little heading problems here, but switching to compass nav, but we're VFR on top. In fact, it's pretty much VFR below us now.' Nine minutes later, radar contact with the airplane was lost. The airplane remained missing for about a month, and the wreckage was not recovered from a mountain side for 7 months. Radar data indicated the airplane descended from an encoded altitude of 15,100 feet to 13,900 feet in 1 minute, 31 seconds, or about 800 feet per minute. No distress call was received. Wreckage examination failed to explain why the airplane descended or anything causal to accident.

Probable Cause: Descent into mountainous terrain for reasons undetermined.

Accident investigation:
Investigating agency: NTSB
Report number: FTW96FA145
Status: Investigation completed
Duration: 10 months
Download report: Final report




Revision history:

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 08:23 ASN Update Bot Updated [Time, Operator, Other fatalities, Phase, Destination airport, Source, Narrative, Category, Accident report]

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