SEA89FA053

NTSB accident investigation · Piper PA-60-601P · Lakeview, OR · March 4, 1989

Accident · FatalField investigationFinal report
Date
March 4, 1989, 12:00 local (20:00 UTC)
Place
Lakeview, OR
Injuries
3 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
CFHGHPiper PA-60-601P
Weather
Instrument (IMC) · Day
Status
Completed · report September 17, 1992
Report
Approved by Office Director
Case key
40914

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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Probable cause

Failure of the pilot to maintain control of the aircraft, which resulted in a spin and an uncontrolled descent. Factors related to the accident were: improper maintenence by the pilot, an autopilot malfunction, the adverse weather conditions, continued flight by the pilot into adverse weather conditions, and his lack of recent instrument experience.

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.

Airframe/component/system failure/malfunctionCruise - normal
Autopilot/flight director - disengagedFactor
Maintenance - inadequatePilot in commandFactor
Loss of control - in flightCruise - normal
Weather condition - cloudsFactor
Weather condition - snowFactor
Weather condition - icing conditionsFactor
Flight into known adverse weather - performedPilot in commandFactor
Aircraft control - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in commandCause
Lack of recent instrument timePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

While en route, the plt enctrd headwinds & trace rime icing. He made a climb from 17,000 ft to flt 190, then to FL 210. After cruising at FL 210 for about 27 min, the acft entered a dscnt (w/o ATC clnc). Radio & radar contact were lost in the vcnty of were the acft crashed. Just before impact, the acft was observed to dscnd out of low clouds in a spin. The plt had been issued a canadian instrument rating on 1/11/88, but it was valid for only 12 mos. A person, who had given the plt proficiency flt training in preparation for an instrument qualification check, reported that he had reservations about the plt's ability to fly in instrument conditions without an autoplt. Avionics personnel at the departure arpt rprtd the plt had enctrd an autoplt malfunction on the previous flt & that they had found an elec short in the autoplt disconnect sw on the coplt ctl yoke. However, they were unable to repair it due to lack of a replacement part. Rprtdly, the plt barrowed a soldering iron to repair it himself.

Aircraft

Registration
CFHGH
Reported as
Piper PA-60-601P
Category
Airplane
Serial number
61P082981634
Airframe hours
1,297
Engine
Lycoming IO-540-S1A5, 290 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Herbert G. Hinkelman
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 2, 1988 · 24 hours before
Departed
PDX · Portland, OR
Destination
RNO · Reno, NV
Flight plan
IFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
58
Certificates
Private, Foreign
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
1,300 total · 108 in this make and model

Weather

Conditions
Instrument (IMC) · Day
Wind
160° at 10 knots
Visibility
2 statute miles
Lowest ceiling
400 ft
Temperature
27 °F, dew point 21 °F
Altimeter
29.00 inHg
Observed at
LKV, 7 nm away