DEN89LA153

NTSB accident investigation · Stitts SA7D · Evanston, WY · July 2, 1989

Accident · No injuriesLimited investigationFinal report
Date
July 2, 1989, 16:15 local (22:15 UTC)
Place
Evanston, WY
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1113EStitts SA7D
Weather
Visual (VMC) · Day
Status
Completed · report April 19, 1990
Report
Approved by Office Director
FAA report
19890702018759A
Case key
17733

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Improper compensation by the pilot for wind conditions. Contributing factors were: high density altitude, unfavorable wind, and downdraft.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Hard landingLanding - flare/touchdown
Weather condition - high density altitudeFactor
Weather condition - unfavorable windFactor
Weather condition - downdraftFactor
Compensation for wind conditions - inadequatePilot in commandCause
Lack of total experiencePilot in command

Analysis

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.

Aircraft

Registration
N1113E
Reported as
Stitts SA7D
Category
Airplane, amateur-built
Serial number
DCB-1
Engine
Lycoming O-235-C1, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Griggs, Harley & Linda
Airworthiness certificate
Special, Experimental (Special)
Departed
OGD · Ogden, UT
Destination
EVW
Airport
EVW · Evanston, runway 23, 7,300 × 100 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
75 total · 16 in this make and model · 50 as pilot in command · 3 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 18 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 21 °F
Altimeter
30.00 inHg
Observed at
EVW

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.