SEA86FA066

NTSB accident investigation · Piper PA34-200T · Antelope, OR · February 26, 1986

Accident · FatalField investigationFinal report
Date
February 25, 1986, 18:55 local (Feb 26, 1986, 02:55 UTC)
Place
Antelope, OR
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N8305CPiper PA34-200T
Weather
Visual (VMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19860225003659A
Case key
40272

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with terrain/waterDescent
Altitude - misjudgedPilot in commandCause
Clearance - misjudgedPilot in commandCause
Terrain condition - risingFactor
Light condition - dark nightFactor
Weather condition - rainFactor
Weather condition - turbulenceFactor
Weather condition - downdraftFactor

Analysis

Plt was operating VFR on top at 11000 feet, commenced descent to destination 34 miles out. Plt rpted field in sight 16 miles out, passing 6500 ft, cancelled flight plan. Acft impacted ridge at 4100 feet MSL 7 miles from destination. Dark night conds existed, with overcast above broken clouds. Residents reported moderate drizzle in area at time of crash. Forecast included moderate turbulence below 15000 feet with strong up and down drafts near mountains, mountains obscured in clouds and precipitation. Radar track showed acft spd during descent in excess of 200 KTS, rate of descent up to 1200 feet per minute. Wreckage indicates acft struck steep rocky slope in nose-high attitude with power on.

Aircraft

Registration
N8305C
Reported as
Piper PA34-200T
Category
Airplane
Serial number
347670123
Airframe hours
2,120
Engine
Continental L-TSIO-360-E, 200 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Business · Part 91
Registered owner
Albert C. Depenbrock
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 1, 1986 · 10 hours before
Departed
PDX · Portland, OR
Destination
350R · Rajneeshpuram, OR
Flight plan
IFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
43
Certificate
Commercial
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land, Multi-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
5,743 total · 20 in this make and model · 5,375 as pilot in command · 50 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
80° at 4 knots
Visibility
15 statute miles
Lowest ceiling
4,000 ft broken
Temperature
48 °F, dew point 48 °F
Altimeter
30.00 inHg
Observed at
RDM, 43 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.