ERA21LA150

NTSB accident investigation · American Champion 7GCBC · Montgomery, NY · November 8, 2020

Accident · No injuriesClass 4 · LimitedFinal report
Date
November 8, 2020, 15:00 local (20:00 UTC)
Place
Montgomery, NY · Adjacent to runway, in grass
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N139PCAmerican Champion 7GCBC
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
102740

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain directional control during landing, resulting in a ground loop and structural damage to the airframe.

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/maintainedAmerican Champion 7GCBC: 9 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

The pilot reported that he was landing with the tailwheel-equipped airplane in calm wind. Upon touchdown, the airplane veered to the right despite attempts to keep it tracking straight with left brake inputs. The airplane ground looped to the right and came to rest in the grass, adjacent to the runway. The Federal Aviation Administration inspector who examined the wreckage after the accident reported that there was substantial damage to the fuselage near the main landing gear strut attachment points and near the tailwheel. Examination of the wheel brakes, tires, and flight controls showed no indication of a preexisting mechanical malfunction or failure, nor did the pilot report one.

Aircraft

Registration
N139PC
Reported as
American Champion 7GCBC
Category
Airplane
Serial number
1339-2002
Built
2002
Airframe hours
952
Engine
Lycoming O-320-B2B, 160 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Aerobatic; Standard, Normal
Last inspection
Annual · June 19, 2020 · 12 hours before
Airport
MGJ · Orange County, runway 04/22, 5,006 × 100 ft, asphalt
Equipment
ADS-B, Handheld GPS

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
60
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Front
Restraint
3-point
Flight hours
319 total · 268 in this make and model · 319 as pilot in command · 6 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 32 °F
Altimeter
30.33 inHg
Observed at
MGJ

Docket · 3

The files NTSB released with the investigation on July 16, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 50.7 MB in all.