Diamond Aircraft agent Utility Air has said that a Mandatory Service Bulletin (MSB) that requires constant oil sampling on some Austro diesel engines will have little impact on Australia's Diamond fleet.
MSB E4-039 requires the sampling due to a batch of pistons being manufactured out of tolerance.
However, Utility Air Director John Oppenheim has said that of the 184 Diamond aircraft operating in Australia, only a handful will be affected.
“We’re grateful for the support that Austro and Diamond are providing our customers and we are working with each of them to ensure minimal disruption” he said.
“We’re fortunate that this MSB only refers to a particular run of parts, and therefore the numerous new aircraft we have being delivered and for sale over the next few years are not affected.”
The MSB will apply to Diamond's two twins, the DA42 and DA62, and the popular DA40 single, all of which are powered by diesel engines from Diamond subsidiary Austro Engines.
Austro has advised that replacement pistons will become available in the first quarter of 2023 and will be supplied to customers free of charge.