SEA86FA231

NTSB accident investigation · Ercoupe 415C · Prosser, WA · August 30, 1986

Accident · FatalField investigationFinal report
Date
August 30, 1986, 10:14 local (17:14 UTC)
Place
Prosser, WA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N3002HErcoupe 415C
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860830043109A
Case key
40301

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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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.

Airframe/component/system failure/malfunctionManeuvering
Wing,wingtip - previous damageCause
Wing,wing rib - crackedCause
Maintenance,major repair - inadequateOther maintenance personnelCause
Wing,spar - overloadCause
Wing - failure,totalCause
In flight collision with terrain/waterDescent - uncontrolled
Aircraft handling - not possiblePilot in command

Analysis

The plt was practicing fly-bys for the next days airshow. The left wing sustained an inflight structural failure. Investigation revealed a progressive crack in the #7 rib emanating from previous damage to the leading edge of the left wing tip. This resulted the inflight structural overload of the main spar.

Aircraft

Registration
N3002H
Reported as
Ercoupe 415C
Category
Airplane
Serial number
3627
Airframe hours
2,002
Engine
Continental C85-12F, 85 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
John D. Rising
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 16, 1986 · 9 hours before

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
32
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
300 total · 50 in this make and model · 300 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 7 knots
Visibility
60 statute miles
Lowest ceiling
25,000 ft broken
Temperature
70 °F, dew point 52 °F
Altimeter
30.00 inHg
Observed at
YKM, 36 nm away

FAA reports on this event · 1

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