DEN86FA056

NTSB accident investigation · Cessna T210L · West Valley, UT · December 29, 1985

Accident · FatalField investigationFinal report
Date
December 29, 1985, 13:50 local (20:50 UTC)
Place
West Valley, UT
Injuries
6 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N2082SCessna T210L
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19851229066759A
Case key
16800

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 encounter with weatherApproach - iaf to faf/outer marker (ifr)
Weather condition - low ceilingFactor
Ifr procedure - improperPilot in commandCause
Lack of recent instrument timePilot in commandCause
Proper altitude - not understoodPilot in commandCause
Aborted takeoff - exceededPilot in commandFactor
Airspeed - excessivePilot in commandFactor
Proper glidepath - not followedPilot in commandFactor
Abrupt maneuverDescent
Remedial action - improperPilot in commandCause
Visual/aural detectionPilot in command
Pull-up - attemptedPilot in commandCause
Airframe/component/system failure/malfunctionDescent
Horizontal stabilizer attachment - failure,totalFactor
Elevator - improper use ofPilot in commandCause
Horizontal stabilizer surface - separationFactor
Design stress limits of aircraft - exceededPilot in commandCause
Flight control,elevator - separation
Wing

Analysis

During apch to rwy 34L, the rt horizontal stab, elevators and wings separated in-flt. Investigation revealed the plt was not instr current. Ntap data revealed N2082S at an alt of 7,400 ft and 203 KTS grnd speed at outer marker. The mca at the marker is 6,100 feet. Witnesses saw acft breakup just below low cloud ceiling. Exam of wreckage revealed horizontal stab failure was a result of excessive speed and plt induced aerodynamic overload.

Aircraft

Registration
N2082S
Reported as
Cessna T210L
Category
Airplane
Serial number
21061048
Engine
Continental TSIO-520-L, 300 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Peter O. And Biruta Macs
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 22, 1985 · 51 hours before
Departed
POV · Laverne, CA
Destination
SLC · Salt Lake City, UT
Flight plan
VFR/IFR
Airport
SLC · Salt Lake City Int., runway 34, 12,000 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
48
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
300 total · 300 in this make and model

Weather

Conditions
Instrument (IMC) · Day
Wind
30° at 5 knots
Visibility
1 statute miles
Lowest ceiling
800 ft overcast
Temperature
25 °F, dew point 16 °F
Altimeter
30.00 inHg
Observed at
SLC, 3 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.