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NTSB Report
September 23, 1986 · Cessna T210M · N6163N
Old Monroe, MO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 23, 1986
Injury Outcomes
No injuries (3 uninjured)
Location
Old Monroe, MO
Aircraft
Cessna T210M
Tail Number
N6163N
Operator
Roederer Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MKC86LA193
THE PIC HAD INITIATED HIS DESCENT OT HIS DESTINATION ARPT WHEN HE RPTD EXPERIENCING ENG PBLMS. THE ROUGH RUNNING ENG FINALLY QUIT AND THE PIC MADE A FORCED LNDG TO AN OPEN FLD. THE SUBSEQUENT LNDG ENCOUNTERED A DITCH AND THE NOSE GEAR COLLAPSED. EXAM OF THE ENG REVEALED THAT THE EXHAUST VALVE OF ONE OF THE CYLINDERS HAD FAILED IN FATIGUE. METALLUGICAL EXAM NOTED THAT IT WAS A LOW STRESS, HIGH CYCLE FATIGUE FAILURE OF THE EXHAUST VALVE STEM NEAR THE VALVE FACE. THE ENG HAD BEEN COMPLETELY OVHLD 60 OPERATIONAL FLT HRS PRIOR TO THIS FAILURE. VALVES UTILIZED DUG OVHL MET MNFGRS SPEC.
Full Narrative
THE PIC HAD INITIATED HIS DESCENT OT HIS DESTINATION ARPT WHEN HE RPTD EXPERIENCING ENG PBLMS. THE ROUGH RUNNING ENG FINALLY QUIT AND THE PIC MADE A FORCED LNDG TO AN OPEN FLD. THE SUBSEQUENT LNDG ENCOUNTERED A DITCH AND THE NOSE GEAR COLLAPSED. EXAM OF THE ENG REVEALED THAT THE EXHAUST VALVE OF ONE OF THE CYLINDERS HAD FAILED IN FATIGUE. METALLUGICAL EXAM NOTED THAT IT WAS A LOW STRESS, HIGH CYCLE FATIGUE FAILURE OF THE EXHAUST VALVE STEM NEAR THE VALVE FACE. THE ENG HAD BEEN COMPLETELY OVHLD 60 OPERATIONAL FLT HRS PRIOR TO THIS FAILURE. VALVES UTILIZED DUG OVHL MET MNFGRS SPEC.
Flight
Event TypeAccident
Event Time19:15 CDT
Nearest AirportSprit Of St. Louis (0nm N)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T210M
Tail NumberN6163N
Aircraft CategoryAir
DamageSubstantial
OperatorRoederer Aviation
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-R · Reciprocating · 300
Seats6
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 26 · First Class
Conditions
ConditionsVMC
LightDark Night
Wind70° @ 7 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter29.00 inHg
Observation Time23:54
Weather SourceWFAC