SEA00LA175

NTSB accident investigation · Ercoupe 415-C · Wapato, WA · September 3, 2000

Accident · Serious injuriesLimited investigationFinal report
Date
September 2, 2000, 18:00 local (Sep 3, 2000, 01:00 UTC)
Place
Wapato, WA
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N87351Ercoupe 415-C
Weather
Visual (VMC) · Day
Status
Completed · report May 18, 2001
Report
Approved by Office Director
FAA report
20000902008329A
Case key
50157

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

The pilot's failure to maintain clearance from the trees off the approach end of the runway, and his delay of the remedial action that would have allowed him to clear the trees. Factors include the pilot's failure to maintain a proper glidepath, trees off the approach end of the runway, and a downdraft in the vicinity of the approach path.

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.

In flight collision with objectLanding
Clearance - not maintainedPilot in commandCause
Remedial action - delayedPilot in commandCause
Proper glidepath - not maintainedPilot in commandFactor
Object - tree(s)Factor
Weather condition - downdraftFactor

Analysis

While on approach to the private airstrip, the pilot inadvertently allowed the aircraft to descend to a lower than normal altitude. When he was about 50 feet from the end of the runway, he realized that he needed to climb in order to clear the trees just off the approach end. Although he added power, he did not do so in time to climb above the treetops. Therefore the aircraft collided with the trees and tumbled into the terrain. The pilot also thought that he may have encountered a downdraft at about the same time as he added power for the climb.

Factual narrative

On September 2, 2000, approximately 1800 Pacific daylight time, an Ercoupe 415-C, N87351, collided with trees just off the approach end of a private airstrip near Wapato, Washington. The private pilot received serious injuries, his passenger received minor injuries, and the aircraft, which was owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which departed Sunnyside Municipal Airport, Sunnyside, Washington, about 30 minutes prior to the accident, was being operated in visual meteorological conditions. No flight plan had been filed, and there was no report of an ELT activation.

In a post-accident conversation with a Federal Aviation Administration Operations Inspector, the pilot, who based the aircraft at the private strip, said that while on final approach, he inadvertently allowed the aircraft to descend lower than normal. When he was about 50 feet from the approach end of the airstrip, he realized that he would need to climb in order to clear the trees that were located just short of the runway. Although he added power, he had done so too late to enable the aircraft to climb above the treetops. Therefore, the aircraft struck the trees and nosed over into the terrain. The pilot further stated that he thought he may have encountered a downdraft at about the time he added power. He said that he was not aware of any problems with the airframe, flight controls, or the engine.

Aircraft

Registration
N87351
Reported as
Ercoupe 415-C
Category
Airplane
Serial number
524
Engine
Continental C-75-12, 75 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard J. Meyer
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 13, 2000
Departed
1S5 · Sunnyside, WA
Airport
runway 31, 5,280 × 75 ft, grass/turf

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
70
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
623 total · 23 in this make and model · 623 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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

Other investigations on N87351 · 1

Matched to the same aircraft by N-number and date.