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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

January 12, 1990 · Cessna 210M · N9064M

Ocala, FL

Overview

Report Status
Probable Cause
Event Type
Accident
Date
January 12, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Ocala, FL
Aircraft
Cessna 210M
Tail Number
N9064M
Operator
Cherokee Express
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA90LA052

DURING A DESCENT, THE PLT PULLED THE THROTTLE TO REDUCE POWER WITH NEGATIVE RESULTS. HE AGAIN PULLED THE THROTTLE TO REDUCE POWER & THE MANIFOLD PRESSURE GAUGE INDICATED THAT THE ENG POWER DROPPED TO IDLE. HE ATTEMPTED TO PUSH THE THROTTLE, BUT WAS UNABLE. HE THEN MADE A FORCED LANDING. DURING THE LANDING ROLL, THE ACFT WAS DAMAGED WHEN IT COLLIDED WITH A FENCE & A TREE. AN EXAM OF THE FUEL SERVO REVEALED THAT THE THROTTLE PLATE HAD SEPARATED FROM THE THROTTLE SHAFT DUE TO IMPROPER SECURING OF THE ATTACH SCREWS DURING OVERHAUL. THIS RESULTED IN THE LOSS OF POWER DUE TO RESTRICTED AIRFLOW INTO THE INDUCTION SYSTEM.

NTSB Probable Cause

SEPARATION OF THE THROTTLE PLATE, DUE TO IMPROPER SECURING OF THE ATTACH SCREWS DURING AN OVERHAUL.

Full Narrative

DURING A DESCENT, THE PLT PULLED THE THROTTLE TO REDUCE POWER WITH NEGATIVE RESULTS. HE AGAIN PULLED THE THROTTLE TO REDUCE POWER & THE MANIFOLD PRESSURE GAUGE INDICATED THAT THE ENG POWER DROPPED TO IDLE. HE ATTEMPTED TO PUSH THE THROTTLE, BUT WAS UNABLE. HE THEN MADE A FORCED LANDING. DURING THE LANDING ROLL, THE ACFT WAS DAMAGED WHEN IT COLLIDED WITH A FENCE & A TREE. AN EXAM OF THE FUEL SERVO REVEALED THAT THE THROTTLE PLATE HAD SEPARATED FROM THE THROTTLE SHAFT DUE TO IMPROPER SECURING OF THE ATTACH SCREWS DURING OVERHAUL. THIS RESULTED IN THE LOSS OF POWER DUE TO RESTRICTED AIRFLOW INTO THE INDUCTION SYSTEM.

Flight

Event TypeAccident
Event Time08:15 EST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 210M
Tail NumberN9064M
Aircraft CategoryAir
DamageSubstantial
OperatorCherokee Express
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-L · Reciprocating · 300
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 29 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind300° @ 10 kt
Visibility5 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time13:18
Weather SourceWFAC

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Appendix: Source Data