ERA12CA499

NTSB accident investigation · Aeronca 7CCM · Norridgewock, ME · August 7, 2012

Accident · No injuriesData collectionFinal report
Date
August 7, 2012, 10:30 local (14:30 UTC)
Place
Norridgewock, ME
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N83129Aeronca 7CCM
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 5, 2012
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA Portland FSDO
FAA report
20120807017039A
Case key
84601

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 student pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion.

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/maintainedAeronca 7CCM: 2 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotAeronca 7CCM: 5 casesAll aircraft: 9,295 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 student pilot stated that while landing on runway 21, immediately following contact of the main landing gear onto the runway, the right wing “came up.” The pilot compensated with left rudder and right aileron and kept the aircraft centered on the runway. Shortly thereafter, the right wing raised up a second time. The airplane then departed the right side of the runway and came to rest after the right wing impacted a tree 270 feet from the runway. A flight instructor at the airport stated that the wind favored runway 21 but had reversed direction during the accident flight. A meteorological report from the airport indicated wind from 190 degrees at 3 knots about the time of the accident, with no wind speeds exceeding 3 knots throughout the duration of the landing roll. Postaccident examination of the airplane revealed substantial damage to the right wing spar. The examination did not reveal any evidence of preexisting mechanical anomalies that would have precluded normal operation. The pilot reported no mechanical malfunctions with the airplane following the accident.

Factual narrative

The student pilot stated that while landing on runway 21, immediately following contact of the main landing gear onto the runway, the right wing “came up.” The pilot compensated with left rudder and right aileron and kept the aircraft centered on the runway. Shortly thereafter, the right wing raised up a second time. The airplane then departed the right side of the runway and came to rest after the right wing impacted a tree located 270 feet from the runway. A certified flight instructor at the airport stated that the wind favored runway 21 but had reversed direction during the accident flight. A meteorological report from the airport indicated wind from 190 degrees at 3 knots about the time of the accident with no wind speeds exceeding 3 knots throughout the duration of the landing roll. Post-accident inspection revealed substantial damage to the right wing spar. The inspection did not reveal any evidence of preexisting mechanical anomalies that would have precluded normal operation. The pilot reported no mechanical malfunctions with the airplane following the accident.

Aircraft

Registration
N83129
Reported as
Aeronca 7CCM
Category
Airplane
Serial number
1787
Airframe hours
1,146
Engine
Cont Motor C90 SERIES, 95 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 7, 2012 · 32 hours before
Departed
KOLD · Old Town, ME
Destination
KOWK · Norridgewock, ME
Airport
KOWK · Central Main Airport of Norrid, runway 21, 3,999 × 90 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
Student pilot
Age
60
Injuries
None
Certificate
Student
Medical
Sport pilot
Seat
Left
Flight hours
36 total · 25 in this make and model · 10 as pilot in command · 31 in the last 90 days · 14 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 57 °F
Altimeter
29.98 inHg
Observed at
KOWK

Docket · 7

The files NTSB released with the investigation on September 7, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 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.