CEN12LA369

NTSB accident investigation · Ryan Aeronautical ST3KR · Norwalk, OH · June 8, 2012

Accident · No injuriesLimited investigationFinal report
Date
June 8, 2012, 13:30 local (17:30 UTC)
Place
Norwalk, OH
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N721RRyan Aeronautical ST3KR
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Cleveland FSDO
FAA report
20120608013699A
Case key
83975

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 failure to maintain directional control of the airplane while landing in a crosswind.

Findings · 4

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedRyan Aeronautical ST3KR: 2 casesAll aircraft: 3,958 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeRyan Aeronautical ST3KR: 1 caseAll aircraft: 1,008 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

The pilot reported that, upon touchdown, the tailwheel-equipped airplane's right brake "locked up" and the airplane then veered off the right side of the runway. The airplane struck a 3-foot-wide drainage ditch about 66 feet from the edge of the runway, which resulted in substantial damage to the left wing. The examination of the accident site revealed runway skid marks and a wingtip scrape, which indicated that the right wheel was not on the ground until shortly before it contacted the ditch. The right brake successfully passed the acceptance test procedure with no visual indication of fluid leakage around the piston. The pilot had 997 total flight hours with 1 hour logged in the accident airplane. The accident flight was the first flight he had in the airplane, and it was his first landing in the accident airplane. The surface weather observation at an airport located about 18 nautical miles from the accident site indicated the wind was 320 degrees at 9 knots. The airplane landed on the runway at 280 degrees, which indicates that a 6-knot crosswind existed at the time of the accident.

Factual narrative

On June 8, 2012, at 1330 eastern daylight time, a Ryan Aeronautical ST3KR, N721R, sustained substantial damage when it lost directional control during landing at the Norwalk-Huron County Airport (5A1), Norwalk, Ohio. The pilot and passenger were not injured. The airplane was registered and operated by a private individual under the provisions of the 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The airplane departed Geauga County Airport (7G8), Middlefield, Ohio, at 1230. The pilot reported that the tailwheel equipped airplane was landing on runway 28 (4,210 feet by 75 feet, asphalt). He reported that the right brake "locked up" upon touchdown causing the airplane to veer off the runway. The airplane struck a 3-foot wide drainage ditch that was about 66 feet from the edge of the runway and ran parallel to the runway, which resulted in sustained substantial damage to the left wing. A Federal Aviation Administration (FAA) inspector examined the accident site. He reported that the runway skid marks and the wingtip scrape indicated that the right wheel was not on the ground until shortly before contacting the ditch. The inspector reported that the airplane had a very narrow wheel stance and limited forward visibility in the landing attitude. The right brake was tested at the brake manufacturer's facility with FAA oversight. The brake successfully passed the acceptance test procedure, and there was no visual indication of fluid leakage around the piston. The pilot had 997 total flight hours with 1 hour logged in the accident airplane. The accident flight was the first flight he had in the airplane, and it was his first landing in the accident airplane. At 1353, the surface weather observation at the Lorain County Regional Airport (LPR), Lorain, Ohio, located about 18 nautical miles east of 5A1, was: wind 320 degrees at 9 knots; 10 miles visibility; sky clear; temperature 26 degrees Celsius; dew point 7 degrees Celsius; altimeter 30.05 inches of mercury.

Aircraft

Registration
N721R
Reported as
Ryan Aeronautical ST3KR
Category
Airplane
Serial number
1840
Built
1942
Airframe hours
1,946
Engine
Ranger 6-440-C5, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Roger Parshall
Registered owner
Roger Parshall
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 14, 2012
Departed
K7G8 · Middleton, OH
Destination
K5A1 · Norwalk, OH
Airport
K5A1 · Norwald-Huron County, runway 28, 4,210 × 75 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
45
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Without waivers/limitations
Last flight review
September 2, 2010
Seat
Rear
Flight hours
997 total · 1 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 45 °F
Altimeter
30.04 inHg
Observed at
LPR, 18 nm away

Docket · 5

The files NTSB released with the investigation on June 26, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.8 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.

Other investigations on N721R · 2

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