CEN10CA366

NTSB accident investigation · Aviat A-1B · Centennial, CO · July 2, 2010

Accident · No injuriesData collectionFinal report
Date
July 2, 2010, 13:41 local (20:41 UTC)
Place
Centennial, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N80HYAviat A-1B
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 21, 2010
Report
Approved by Office Director
NTSB office
Central Region
FAA report
20100702040289A
Case key
76514

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 student pilot's failure to maintain directional control and the certified flight instructor's delay in remedial action.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAviat A-1B: 21 casesAll aircraft: 3,958 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotAviat A-1B: 2 casesAll aircraft: 894 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 certified flight instructor (CFI) and private pilot student were conducting tailwheel certification training. During the third flight of the day, after practicing 3-point landings, the student pilot was performing an additional 3-point landing after having just practiced main wheel landings. The CFI described the pattern and approach as being normal. During the roll out and while slowing the airplane down, it began to drift left. The CFI called for right rudder and the airplane began drifting right of centerline. After calling for left rudder the CFI attempted to regain control using rudder and power. The airplane entered a violent turn to the left, exited the runway, and flipped over going down an embankment. The right wing spar and horizontal stabilizer were bent.

Factual narrative

The certified flight instructor (CFI) and private pilot student were conducting tailwheel certification training. During the third flight of the day, after practicing 3-point landings, the student pilot was performing an additional 3-point landing after having just practiced main wheel landings. The CFI described the pattern and approach as being normal. During roll out and while slowing the airplane began to drift left. The CFI called for right rudder and the airplane began drifting right of centerline. After calling for left rudder the CFI attempted to regain control using rudder and power. The airplane entered a violent turn to the left, exited the runway, and flipped over going down an embankment. The right wing spar and horizontal stabilizer were bent.

Aircraft

Registration
N80HY
Reported as
Aviat A-1B
Category
Airplane
Serial number
2288
Airframe hours
65
Engine
Lycoming O-360 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Steven McFarland`
Registered owner
Steven McFarland`
Airworthiness certificate
Standard, Normal
Departed
APA · Centennial, CO
Destination
APA · Centennial, CO
Airport
APA · Centennial Airport, runway 35L, concrete

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
Flight instructor
Age
69
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
September 13, 2008
Flight hours
21,000 total · 300 in this make and model · 70 in the last 90 days · 21 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots, gusting 8
Lowest ceiling
None

Docket · 1

The files NTSB released with the investigation on August 2, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 534 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.