ERA11CA163

NTSB accident investigation · Aeronca 11AC · Randolph, NY · July 20, 2010

Accident · No injuriesData collectionFinal report
Date
July 20, 2010, 09:30 local (13:30 UTC)
Place
Randolph, NY
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9120EAeronca 11AC
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Dawn
Status
Completed · report June 8, 2011
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA Rochester, New York
FAA report
20100720055799A
Case key
78427

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 certified flight instructor's delayed response to the student pilot's loss of directional control during takeoff, which resulted in a runway excursion and collision with a building.

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.

Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotAeronca 11AC: 2 casesAll aircraft: 894 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · Student/instructed pilotAeronca 11AC: 1 caseAll aircraft: 792 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAeronca 11AC: 13 casesAll 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

According to the certified flight instructor (CFI), the student pilot was receiving instruction in a tailwheel equipped airplane. During the takeoff roll, the airplane began to veer to the right, exited the runway, and impacted the corner of a building, resulting in substantial damage to the forward and aft spars of the left wing. The CFI reported that during the takeoff roll, the student pilot was pushing heavily on the right brake. According to the student pilot, about 300 feet into the takeoff roll, the airplane veered to the right a few degrees and the CFI took authority of the airplane's controls. The airplane continued to veer to the right and prior to impacting the building, the student pilot retarded the throttle. Both pilots reported that there were no preimpact mechanical malfunctions with the airplane.

Factual narrative

According to the certificated flight instructor (CFI), the student pilot was receiving instruction in a tailwheel equipped airplane. During the takeoff roll, the airplane began to veer to the right, exited the runway, and impacted the corner of a building, resulting in substantial damage to the forward and aft spars of the left wing.. The CFI reported that during the takeoff roll, the student pilot was pushing heavily on the right brake. According to the student pilot, about 300 feet into the takeoff roll, the airplane veered to the right a few degrees and the CFI took control of the airplane. The airplane continued to veer to the right and prior to impacting the building, the student pilot retarded the throttle. Both pilots reported that there were no mechanical malfunctions with the airplane prior to the accident. The National Transportation Safety Board was notified of this accident on February 25, 2011.

Aircraft

Registration
N9120E
Reported as
Aeronca 11AC
Category
Airplane
Serial number
11AC-754
Airframe hours
1,022
Engine
Cont Motor A&C65 SERIES, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 27, 2010 · 7 hours before
Departed
85NK · Randolph, NY
Destination
N56 · Great Valley, NY
Airport
85NK · Campbell Field Airport, runway 26, 2,495 × 80 ft, grass/turf

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
Flight instructor
Age
59
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
August 1, 2010
Seat
Right
Flight hours
27,500 total · 200 in this make and model · 17,500 as pilot in command · 40 in the last 90 days · 10 in the last 30 days
Role
Student pilot
Age
62
Injuries
None
Certificate
Student
Medical
Class 3, Unknown
Seat
Left
Flight hours
33 total · 10 in this make and model

Weather

Conditions
Visual (VMC) · Dawn
Wind
200° at 3 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
70 °F, dew point 64 °F
Altimeter
30.02 inHg
Observed at
JHW, 20 nm away

Docket · 4

The files NTSB released with the investigation on May 2, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.6 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.