DEN90FA159

NTSB accident investigation · Cessna P210R · Ogden, UT · July 12, 1990

Accident · FatalField investigationFinal report
Date
July 12, 1990, 07:18 local (13:18 UTC)
Place
Ogden, UT
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N6203ACessna P210R
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 1991
Report
Approved by Office Director
FAA report
19900712025399A
Case key
17840

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 #1 piston due to pre-ignition/detonation in the #1 cylinder, and inadequate visual lookout by the pilot (his failure to see-and-avoid the obstruction). The obstruction (power line) was a related factor.

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.

Loss of engine power(total) - mech failure/malfClimb - to cruise
Engine assembly,cylinder - overtemperatureCause
Engine assembly,piston - burnedCause
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - wire,transmissionFactor
Visual lookout - inadequatePilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The two plts had departed on a flt to get two revenue passengers. The left seat plt was at the ctls when a loss of eng power occurred. He made a 180 deg turn & was gliding down a canyon when it struck an unmarked power line at the mouth of the canyon. Impact occurred about 100 to 200 ft AGL. A post-acdnt exam of the eng revealed evidence of detonation/preignition & excessive heating in the #1 clyinder & subsequent failure of the #1 piston.

Aircraft

Registration
N6203A
Reported as
Cessna P210R
Category
Airplane
Serial number
P2100870
Airframe hours
1,273
Engine
Continental TSIO-520-CE, 325 horsepower, reciprocating
Damage
Destroyed
Flight
Positioning · Part 91
Operator
Great Western Aviation, Inc, doing business as Ogden Air Service
Registered owner
Moore Aircraft Corporation
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 26, 1990 · 44 hours before
Departed
OGD · Ogden, UT
Destination
334 · Dutch John, UT
Airport
09D · Ogden

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
52
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
9,500 total · 25 in this make and model · 7,500 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 7 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
OGD

FAA reports on this event · 1

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