Diamond DA20 – NLG Fork Assembly Inspection / Replacement CASA-2011-07

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Cracks have been discovered on the NLG fork
assembly, part number (P/N) 20-3220-08-00, during
routine NLG inspections. The cracks appear just
above the axle hole on the cut out flange. A review
of the Service Difficulty Report Database from 2005
to 2010 has revealed 10 reports concerning this

In order to better detect cracking of the NLG fork
assembly, Diamond Aircraft Industries has revised
their DA20-A1 and DA20-C1 Aircraft Maintenance
Manual Chapter 05-20-00, Scheduled Maintenance
Checks. These changes require more frequent and
more detailed inspections. Furthermore, Diamond
offers a more robust fork assembly,
P/N 20-3220-08-00_1, as a replacement for the
original P/N 20-3220-08-00. The new part will be
installed on new production models and supplied for
future procurement orders.


CASA Attached

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