The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Des Moines, Iowa
Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
NTSB Identification: GAA15LA019
14 CFR Part 91: General Aviation
Accident occurred Monday, March 09, 2015 in Garrison, IA
Probable Cause Approval Date: 10/19/2015
Aircraft: AERONCA 7AC, registration: N83643
Injuries: 2 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The pilot reported that he was landing the tailwheel-equipped airplane in variable wind conditions. During the landing roll, he applied both heel brakes. When the pilot released the brakes, the right brake did not release. The airplane veered right of the landing path on the dirt airstrip, and the left wing struck a power line pole. During postaccident examination, the brakes operated normally with no anomalies noted.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The malfunction of the right brake for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.
On March 9, 2015, about 1800 Central date time, an Aeronca 7AC airplane, N83643, had a main landing gear right brake malfunction during the landing at a private dirt airstrip in Garrison Iowa. The airplane was operated as a visual flight rules (VFR) personal flight, under the provisions of 14 Code of Federal Regulations Part 91, when the accident occurred. Visual meteorological conditions prevailed, and the pilot and sole passenger were not injured. The airplane was stopped after the left wing contacted a power line pole. The pilot reported that he was landing the tailwheel-equipped airplane in variable wind conditions. During the landing roll he applied both heel brakes. When the pilot released the brakes he reported that the right brake did not release. The airplane veered to the right of the landing path and the left wing contacted a power line pole. The airplane sustained substantial to its left wing.
An FAA Certificated Airframe & Powerplant (A&P) mechanic identified normal operation of the brake during the airplane's recovery.
At the direction of the National Transportation Safety Board Investigator-In-Charge, on April 13, 2015 the brake assembly was disassembled and re-inspected by an FAA A&P Mechanic. No mechanical anomalies were found, and the brake operated normally before and after the inspection.
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