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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

May 2, 1992 · Piper PA-28-140D · N1814T

Markham, IL

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 2, 1992
Injury Outcomes
1 injury (1 minor injury)
Location
Markham, IL
Aircraft
Piper PA-28-140D
Tail Number
N1814T
Operator
Jan J Toof/John Flannery
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI92LA139

THE LIGHT SINGLE-ENGINED AIRPLANE HAD DESCENDED TO A NEW ALTITUDE. THE PILOT ADVANCED THE THROTTLE WITH THE INTENT OF OBTAINING CRUISE POWER. THE ENGINE DID NOT RESPOND TO THE POWER APPLICATION. IT REMAINED AT THE PREVIOUSLY SET IDLE RPM AND BEGAN GRADUALLY LOOSING THE RPM. THE PILOT CHOSE A FLAT AREA ADJACENT TO A POND FOR THE FORCED LANDING. THE PILOT STATED HE DID NOT TOUCH DOWN ON THE FLAT AREA BECAUSE THE AIRPLANE'S AIRSPEED WAS TOO FAST. THE AIRPLANE TOUCHED DOWN ON THE RIDGE THAT WAS AT THE END OF THE FLAT AREA AND WAS SUBSTANTIALLY DAMAGED. AN ON SCENE INVESTIGATION REVEALED THE THROTTLE ROD END BEARING WAS NOT ATTACHED TO THE THROTTLE RACKET. THE ATTACHING BOLT WAS MISSING. BOTH COMPONENTS WERE COMPLETELY SEPARATEED RATHER THAN ATTACHED.

NTSB Probable Cause

THE RESULT OF AN INADEQUATE ANNUAL INSPECTION BY OTHER MAINTENANCE PERSONNEL AND, AS A RESULT, A TOTAL FAILURE OF THE THROTTLE LINKAGE. A FACTOR WAS THE PILOT OVERSHOT HIS INTENDED EMERGENCY LANDING AREA, DUE TO EXCESSIVE SPEED.

Full Narrative

THE LIGHT SINGLE-ENGINED AIRPLANE HAD DESCENDED TO A NEW ALTITUDE. THE PILOT ADVANCED THE THROTTLE WITH THE INTENT OF OBTAINING CRUISE POWER. THE ENGINE DID NOT RESPOND TO THE POWER APPLICATION. IT REMAINED AT THE PREVIOUSLY SET IDLE RPM AND BEGAN GRADUALLY LOOSING THE RPM. THE PILOT CHOSE A FLAT AREA ADJACENT TO A POND FOR THE FORCED LANDING. THE PILOT STATED HE DID NOT TOUCH DOWN ON THE FLAT AREA BECAUSE THE AIRPLANE'S AIRSPEED WAS TOO FAST. THE AIRPLANE TOUCHED DOWN ON THE RIDGE THAT WAS AT THE END OF THE FLAT AREA AND WAS SUBSTANTIALLY DAMAGED. AN ON SCENE INVESTIGATION REVEALED THE THROTTLE ROD END BEARING WAS NOT ATTACHED TO THE THROTTLE RACKET. THE ATTACHING BOLT WAS MISSING. BOTH COMPONENTS WERE COMPLETELY SEPARATEED RATHER THAN ATTACHED.

Flight

Event TypeAccident
Event Time14:40 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-28-140D
Tail NumberN1814T
Aircraft CategoryAir
DamageSubstantial
OperatorJan J Toof/John Flannery
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2A · Reciprocating · 150
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 23 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind290° @ 15 kt
Visibility20 sm
CeilingOvercast 10000 ft
Temperature / Dew Point41 C
Altimeter29.00 inHg
Observation Time19:45
Weather SourceWFAC

Appendix: Source Data