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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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July 14, 1991 · Piper PA-24-260 · N8803P

Flint, MI

Overview

Report Status
Probable Cause
Event Type
Accident
Date
July 14, 1991
Injury Outcomes
No injuries (3 uninjured)
Location
Flint, MI
Aircraft
Piper PA-24-260
Tail Number
N8803P
Operator
Vernon C Slater
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI91LA218

THE PILOT SAID THAT WHILE BEING VECTORED ON FINAL APPROACH ABOUT 5 MILES OUT, THE AIRCRAFT DEVELOPED A SEVERE VIBRATION. AN EMERGENCY WAS DECLARED AND A LANDING WAS ATTEMPTED ON THE AIRPORT. THE AIRCRAFT LANDED SHORT OF THE RUNWAY WHICH RESULTED IN SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION REVEALED FAILURE OF THE PITCH CHANGE KNOBS ON ONE PROPELLER BLADE.

NTSB Probable Cause

PROPELLER PITCH CHANGE MECHANISM SHEARED. FACTORS RELATED TO THE ACCIDENT WERE POWERPLANT VIBRATION AND PROPER TOUCHDOWN POINT NOT POSSIBLE.

Full Narrative

THE PILOT SAID THAT WHILE BEING VECTORED ON FINAL APPROACH ABOUT 5 MILES OUT, THE AIRCRAFT DEVELOPED A SEVERE VIBRATION. AN EMERGENCY WAS DECLARED AND A LANDING WAS ATTEMPTED ON THE AIRPORT. THE AIRCRAFT LANDED SHORT OF THE RUNWAY WHICH RESULTED IN SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION REVEALED FAILURE OF THE PITCH CHANGE KNOBS ON ONE PROPELLER BLADE.

Flight

Event TypeAccident
Event Time13:47 EDT
Nearest AirportBishop Int. (0nm N)
Runway9
Runway Length7199 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-24-260
Tail NumberN8803P
Aircraft CategoryAir
DamageSubstantial
OperatorVernon C Slater
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-D4A5 · Reciprocating · 260
Seats4

People & Injuries

Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 48 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 9 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time21:32
Weather SourceWFAC

Appendix: Source Data