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NTSB Report
January 17, 1987 · Beech A-36 · N7688N
Corning, IA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 17, 1987
Injury Outcomes
3 injuries (3 minor injuries)
Location
Corning, IA
Aircraft
Beech A-36
Tail Number
N7688N
Operator
Roscoe Brown Sales
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
MKC87LA040
THE FLT HAD PROGRESSED NORMALLY FROM CHAMPAGNE, IL. THE IFR FLT PLAN WAS CANCELLED AT LAMONI VOR AND THE FLT PROCEEDED VFR. ON FINAL APPROACH TO RWY 17, APRX 1 MILE FROM THE RWY, THE ALTIMETER SUDDENLY UNWOUND AND THE ACFT STRUCK TREES. THE ALTIMETER HAD FUNCTIONED NORMALLY UP TO THAT POINT. POST ACCIDENT INSPECTION OF THE ALTIMETER SHOWED BINDING OF THE 100 FOOT NEEDLE AT THE TANG. ONLY SLOW MOVEMENT OF THE NEEDLE PRODUCED A SIGNIFICANT PROBLEM IN BINDING. THE TESTING OF THE ALTIMETER PRODUCED A SIMILAR MALFUNCTION TO THAT EXPERIENCED BY THE PLT DURING THE APPROACH. THE LIGHTS OF THE ARPT WERE FUNCTIONING PROPERLY DURING THE APPROACH.
Full Narrative
THE FLT HAD PROGRESSED NORMALLY FROM CHAMPAGNE, IL. THE IFR FLT PLAN WAS CANCELLED AT LAMONI VOR AND THE FLT PROCEEDED VFR. ON FINAL APPROACH TO RWY 17, APRX 1 MILE FROM THE RWY, THE ALTIMETER SUDDENLY UNWOUND AND THE ACFT STRUCK TREES. THE ALTIMETER HAD FUNCTIONED NORMALLY UP TO THAT POINT. POST ACCIDENT INSPECTION OF THE ALTIMETER SHOWED BINDING OF THE 100 FOOT NEEDLE AT THE TANG. ONLY SLOW MOVEMENT OF THE NEEDLE PRODUCED A SIGNIFICANT PROBLEM IN BINDING. THE TESTING OF THE ALTIMETER PRODUCED A SIMILAR MALFUNCTION TO THAT EXPERIENCED BY THE PLT DURING THE APPROACH. THE LIGHTS OF THE ARPT WERE FUNCTIONING PROPERLY DURING THE APPROACH.
Flight
Event TypeAccident
Event Time21:45 CST
Nearest AirportCORNING (5nm N)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech A-36
Tail NumberN7688N
Aircraft CategoryAir
DamageSubstantial
OperatorRoscoe Brown Sales
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-B · Reciprocating · 285
Seats6
People & Injuries
Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 39 · Third Class
Conditions
ConditionsVMC
LightDark Night
Wind90° @ 7 kt
Visibility7 sm
CeilingOvercast 1300 ft
Temperature / Dew Point19 C / 7 C
Altimeter30.00 inHg
Observation Time03:50
Weather SourceWFAC