CEN19LA241

NTSB accident investigation · Stoddard-Hamilton GlaStar · Mitchell, SD · July 26, 2019

Accident · No injuriesClass 3 · LimitedFinal report
Date
July 26, 2019, 13:30 local (18:30 UTC)
Place
Mitchell, SD
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N98PWStoddard-Hamilton GlaStar
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20190726012629A
Case key
99946

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

A loss of directional control on landing for undetermined reasons.

Findings · 2

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.

Not determinedNot determined › Not determined · Unknown/Not determinedWass Richard J GLASTAR: 1 caseAll aircraft: 2,247 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedWass Richard J GLASTAR: 1 caseAll aircraft: 3,958 casesProbable cause

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

The pilot reported that he departed on a multileg cross-country flight with several planned refueling stops. He had no difficulty landing at the first stop. During the landing at the second stop, the airplane veered hard to the right. The pilot applied left rudder but was unable to turn the airplane back toward the runway. He applied full throttle in an attempt to go around. The airplane continued through the grass and struck a berm, which resulted in substantial damage to the airplane. A mechanic later examined the airplane and reported that the brake functioned normally and that the right tire showed no evidence of a flat spot or skid marks on the tire tread. The pilot said he did not believe the right wheel had "locked up" but rather that the right brake had become stuck and would not release. Investigators were not able to determine why the airplane veered on landing.

Factual narrative

On July 26, 2019, about 1330 central daylight time, a Waas Stoddard-Hamilton GlaStar, N98PW was substantially damaged when it veered off the runway while landing at Mitchell Municipal Airport (MHE), Mitchell, South Dakota. The pilot was uninjured. The airplane was registered to and operated by the pilot under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. Visual meteorological conditions prevailed at the time of the accident, and no flight plan had been filed for the personal cross-country flight. The flight originated from Wittman Regional Airport (OSH), Oshkosh, Wisconsin, about 0800, then Rochester (RST), Minnesota, about 1100, and was en route to MHE. According to the pilot's accident report, he departed OSH, he was en route to St. James (JYG), Minnesota, but elected to divert to RST, due to the high headwinds west of Oshkosh. The pilot had no trouble in landing at RST. After refueling and checking the weather, the pilot took off en route to MHE, his next refueling stop. About 30 miles east of MHE, the pilot monitored its Automated Surface Observation System (ASOS) broadcast, which was reporting calm winds. As he got closer to MHE, ASOS reported variable winds. He decided to land on runway 18. Immediately upon touch down, the airplane veered hard to the right. The pilot applied left rudder but was unable to turn the airplane back towards the runway. He applied full throttle in an attempt to go around. The airplane continued through the grass and struck a berm. The pilot reported the right landing gear had collapsed and was bent under the cowling and fuselage. The right wing was buckled, and the fibreglass fuselage was cracked and torn open. The chrome moly steel cage was broken in two places, and three tubes were bent. The left wing tip and horizontal stabilizer was also damaged by impact. Federal Aviation Administration inspector assigned to the case requested that an airport mechanic examine right brake. The mechanic reported that the brake functioned normally, and that the right tire showed no evidence of a flat spot or skid marks on the tire tread. The pilot said he did not believe the right wheel had "locked up," but rather that the right brake had become stuck and would not release. The pilot had attended the EAA AirVenture 2019 in Oshkosh, Wisconsin, and the airplane had been parked in wet grass for several days.

Aircraft

Registration
N98PW
Reported as
Stoddard-Hamilton GlaStar
Category
Airplane, amateur-built
Serial number
5204
Airframe hours
559
Engine
Continental O-320-DIF, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 11, 2019 · 34 hours before
Departed
RST · Rochester, MN
Destination
RST · Rochester, MN
Airport
MHE · Mitchell Municipal, runway 18, 5,513 × 100 ft, asphalt
Equipment
Unknown

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
66
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
August 2, 2018
Seat
Left
Restraint
3-point
Flight hours
1,803 total · 119 in this make and model · 1,669 as pilot in command · 96 in the last 90 days · 49 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 57 °F
Altimeter
29.96 inHg
Observed at
MHE

Docket · 3

The files NTSB released with the investigation on September 30, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB 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.