CEN19LA013

NTSB accident investigation · Sorrell Sorrell SNS 7 · Middletown, OH · October 24, 2018

Accident · No injuriesLimited investigationFinal report
Date
October 24, 2018, 10:15 local (14:15 UTC)
Place
Middletown, OH
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8053QSorrell Sorrell SNS 7
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 29, 2020
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration; Cincinnati FSDO
FAA report
20181024020799A
Case key
98543

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 loss of directional control during the landing rollout for reasons that could not be determined based on the available evidence, which resulted in the right wing striking the ground.

Findings · 1

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 determinedElliott Owen D SORRELL SNS-7: 1 caseAll aircraft: 2,247 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 was receiving instruction in the experimental, tailwheel-equipped airplane. The flight instructor indicated they flew in the traffic pattern and then landed "normally." The pilot stated that, during the landing rollout, he applied the wheel brakes and the left brake "locked up." He attempted to keep the airplane straight, but it kept veering left. The flight instructor was unable to regain directional control after using corrective rudder control input; the airplane was not equipped with landing gear brakes at the flight instructor's seat position. The right main landing gear broke off when it hit a small hole, and the right wing struck the ground. A postaccident examination of the airplane was not performed; thus, it could not be determined whether there was a mechanical malfunction of the brake system.

Factual narrative

On October 24, 2018, at 1015 eastern daylight time, an experimental Sorrell SNS-7, N8053Q, veered off runway 26 at Middletown Regional Airport (MWO), Middletown, Ohio, and impacted terrain during landing rollout. The private pilot and a flight instructor were uninjured and the airplane sustained substantial damage. The airplane was registered to and operated by the pilot under Title 14 Code of Federal Regulations Part 91 as an instructional flight that was not operating on a flight plan. Day visual meteorological conditions prevailed at the time of the accident. The local flight originated from MWO at 1000. The pilot, who was the airplane owner and performed maintenance on the airplane, stated the during landing rollout of the tailwheel equipped airplane on runway 26 (3,040 feet x 297 feet, turf), he applied the wheel brakes and the left brake "locked up." He attempted to keep the airplane going straight but the airplane kept going left. The right main landing gear hit a hole breaking off the right main landing gear. The airplane came to a sudden stop and the right wing struck the ground. The propeller struck the ground, and the engine kept running. The flight instructor stated they made a brief flight in the traffic pattern and then landed "normally." During landing rollout, the airplane traveled straight for most of the deceleration. The pilot applied brakes to further slow the airplane, and the airplane began a turn to the left. The instructor attempted corrective input using right rudder, but it was insufficient to correct the rollout path. The flight instructor could not correct using brakes because his rudder pedals were not equipped with brakes. Just prior to stopping, the right main landing gear wheel encountered a small hole, which caused the right main gear to fail. The National Transportation Safety Board Investigator-in-Charge requested that the Federal Aviation Administration inspector from the Cincinnati Flight Standards District Office perform a post-accident examination of the airplane, but an examination was not performed to determine if there was a mechanical malfunction with the airplane.

Aircraft

Registration
N8053Q
Reported as
Sorrell Sorrell SNS 7 (No Series)
Category
Airplane, amateur-built
Serial number
239
Airframe hours
47.1
Engine
Lycoming IO-360, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Pilot
Registered owner
Pilot
Airworthiness certificate
Special, Experimental (Special)
Departed
MWO · Middletown, OH
Destination
MWO · Middletown, OH
Airport
MWO · Middletown Regional Airport, runway 26, 3,040 × 297 ft, grass/turf
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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
72
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Last flight review
June 20, 2018
Seat
Left
Restraint
4-point
Flight hours
1,000 total · 60 in this make and model · 800 as pilot in command · 8 in the last 90 days
Role
Flight instructor
Age
44
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
October 16, 2018
Seat
Right
Restraint
4-point
Flight hours
14,500 total · 25 in this make and model · 12,500 as pilot in command · 183 in the last 90 days · 60 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 34 °F
Altimeter
30.42 inHg
Observed at
MWO

Docket · 3

The files NTSB released with the investigation on April 16, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.8 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.