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NTSB Report
July 2, 1989 · Stitts SA7D · N1113E
Evanston, WY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 2, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Evanston, WY
Aircraft
Stitts SA7D
Tail Number
N1113E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN89LA153
THE PLT RPRTD THAT WHILE ON AN APCH FOR A LANDING AT A HIGH ALTITUDE ARPT WITH A DENSITY ALT OF 9800 FT, THE ACFT ENCOUNTERED A STRONG DOWNDRAFT. THE APCH WAS BEING MADE TO RWY 23 WITH A WIND FROM THE SOUTHWEST AT 18 KTS. THE PLT SAID THE DOWNDRAFT OCCURRED WHEN THE ACFT WAS AT ABOUT 50 FT AGL & THAT SHE ADDED POWER TO LAND FURTHER DOWN THE RWY. HOWEVER, THE DOWNDRAFT FORCED THE ACFT TO THE RWY & IT LANDED HARD WHICH DAMAGED THE FUSELAGE.
NTSB Probable Cause
IMPROPER COMPENSATION BY THE PILOT FOR WIND CONDITIONS. CONTRIBUTING FACTORS WERE: HIGH DENSITY ALTITUDE, UNFAVORABLE WIND, AND DOWNDRAFT.
Full Narrative
THE PLT RPRTD THAT WHILE ON AN APCH FOR A LANDING AT A HIGH ALTITUDE ARPT WITH A DENSITY ALT OF 9800 FT, THE ACFT ENCOUNTERED A STRONG DOWNDRAFT. THE APCH WAS BEING MADE TO RWY 23 WITH A WIND FROM THE SOUTHWEST AT 18 KTS. THE PLT SAID THE DOWNDRAFT OCCURRED WHEN THE ACFT WAS AT ABOUT 50 FT AGL & THAT SHE ADDED POWER TO LAND FURTHER DOWN THE RWY. HOWEVER, THE DOWNDRAFT FORCED THE ACFT TO THE RWY & IT LANDED HARD WHICH DAMAGED THE FUSELAGE.
Flight
Event TypeAccident
Event Time16:15 MDT
Nearest AirportEVANSTON (0nm N)
Runway23
Runway Length7300 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftStitts SA7D
Tail NumberN1113E
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-C1 · Reciprocating · 115
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 28 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 18 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point21 C
Altimeter30.00 inHg
Observation Time23:50
Weather SourceWFAC