WPR09CA306

NTSB accident investigation · Jenkins Jack Glastar SP · Coupeville, WA · June 22, 2009

Accident · No injuriesData collectionFinal report
Date
June 22, 2009, 15:15 local (22:15 UTC)
Place
Coupeville, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5617Jenkins Jack Glastar SP
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report September 10, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration Seattle FSDO
FAA report
20090622009529A
Case key
74103

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

On this page

Probable cause

The pilot’s improper landing flare that resulted in a hard landing on soft/grassy terrain.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationJenkins Jack GLASTAR SPORTSMAN: 1 caseAll aircraft: 1,285 casesProbable cause
TerrainEnvironmental issues › Physical environment · Contributed to outcomeJenkins Jack GLASTAR SPORTSMAN: 1 caseAll aircraft: 267 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

While the pilot was practicing off-airport landings in a field next to his home, he inadvertently allowed the airplane's nosewheel strut to hit the ground hard enough that it stuck into the soft grassy terrain and collapsed. The airplane then nosed over, resulting in substantial damage to the vertical stabilizer and rudder. The pilot reported no preaccident mechanical anomalies with the airplane’s flight control systems.

Factual narrative

While the pilot was practicing off-airport landings in a field next to his home, he inadvertently allowed the airplane's nose wheel strut to hit the ground hard enough that it stuck into the soft grassy terrain and collapsed. The airplane then nosed over, resulting in substantial damage to the vertical stabilizer and rudder. The pilot reported no mechanical anomalies with the airplane’s flight control systems.

Aircraft

Registration
N5617
Reported as
Jenkins Jack Glastar SP
Category
Airplane, amateur-built
Serial number
7090
Airframe hours
26
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jenkins Jack
Registered owner
Jenkins Jack
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 30, 2009 · 6 hours before
Departed
KOKH · Oak Harbor, WA
Destination
Coupville, WA

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
68
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 8, 2008
Seat
Left
Flight hours
400 total · 26 in this make and model · 400 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 11 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
61 °F, dew point 45 °F
Altimeter
30.12 inHg
Observed at
KNUW, 11 nm away

Docket · 1

The files NTSB released with the investigation on July 24, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 589 KB in all.

FAA reports on this event · 1

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