One of the reasons for the oil analysis MSB is there is another issue just over the horizon that is likely to be subject to MSB/ AD action.
It is amazing that a mandatory SB is required to mandate oil analysis
The thing is that oil analysis frequency is doubled.
Emir wrote:
plus frequent oil analysis
It is amazing that a mandatory SB is required to mandate oil analysis: one would assume (it seems incorrectly) that we would have learned something by now and everyone is always using filter inspection, oil analysis and cyl borescoping…
Nasty.. How are your Conti Diesels holding out? SB’s?
Everything is great, not a single SB in 8 years of ownership, 4 years with new engines.
My understanding is that Austro used stock car engine blocks bought from the car engine manufacturers but at some point begun manufacturing the blocks themselves which lead to quality issues. That may be entirely unrelated to this problem, of course.
That’s the cause of the problem.
Silvaire wrote:
Is it correct that Austro uses the standard cast iron car engine block? If so I wonder if this came about due to field service reports on the car engines? Or does Austro use non-automotive pistons in the stock block, with these being the issue?
My understanding is that Austro used stock car engine blocks bought from the car engine manufacturers but at some point begun manufacturing the blocks themselves which lead to quality issues. That may be entirely unrelated to this problem, of course.
Is it correct that Austro uses the standard cast iron car engine block? If so I wonder if this came about due to field service reports on the car engines? Or does Austro use non-automotive pistons in the stock block, with these being the issue?
If I owned one I’d be very interested in whether an AD is to follow.
On an air cooled engine in the same circumstance you’d just hone the cylinders, install new, correctly manufactured pistons/rings and fly on.
Nasty.. How are your Conti Diesels holding out? SB’s?
Unfortunately, Austro Engine has new big issue. Attached is draft of MSB affecting huge number of engines. I don’t know if final version of MSB is released but it won’t be much different. In short, many owners are looking engine replacement in near future plus frequent oil analysis prior to final verdict on exchange/overhaul.
2022_Diamond_Aircraft_and_Austro_Engine_Newsletter_5_MSB_E4_039_PREVIEW_pdf
Emir wrote:
No. This is the other one. AFAIK the third one issued in just few months, grounding many aircrafts due to parts being unavailable.
Not good at all.
Is this related?
Diamond have a new supplier for cylinder heads in Czech Rep. but latest data shows that they are cracking or failing as soon as five hours and apparently Austro control approved use up to 40 hours.
No. This is the other one. AFAIK the third one issued in just few months, grounding many aircrafts due to parts being unavailable.
