ALTA Service Bulletin5/30/2016
Note to all Freefly ALTA users:
Please check the Note:
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Date Released: 27May2016
Subject: Motor Mount Failure
Effectivity: ALTAs purchased after 18March2016
Require Action: Discontinue flight operations
Time of Compliance: Immediately
This Service Bulletin (SB) is being issued to alert ALTA owners who purchased their unit after 18March2016
date to discontinue flight operations immediately.
Recently, Freefly has investigated 2 in fieldfailures of ALTA 8 motor mounts and determined that there may have been a batch of motor mounts which were outside of design specification. These motor mounts are believed to be susceptible to material fatigue due to incorrect machined geometry, which ultimately led to catastrophic failure of the motor mounts during operation.
There have been no ALTA 6 infield
failures related this issue, though it is possible that ALTA 6 machines shipped after 18March2016
were built with motor mounts that are outside of spec. Freefly is working with our machined parts supplier to attempt to narrow the timeline and better define the units that may have been built with these motor mounts.
At this point we believe this issue may necessitate all ALTA 8 user to return their unit to Freefly for inspection, repair, and / or replacement of parts in question.
Freefly recommends all ALTA operators who purchased their ALTA after 18March2016 to immediately discontinue flight operations until a modification that resolves the issue is implemented. We will continue to investigate the issue over the weekend and provide an update on Tues prior to close of business.