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Robin DR400 wing spar Emergency AD (cancelled 6/2024)

Ouch. So a number of DR400’s grounded indefinitly? Around 20 known and then they wonder if those parts were used on airplanes which had a wing overhaul since 2000?

LSZH(work) LSZF (GA base), Switzerland

Has anyone studied the AD / SB in respect of group 2 aircraft ? Does this mean the rest of the fleet of the models listed.

i.e. all restricted to normal category ?




PaulB wrote:

Does this mean the rest of the fleet of the models listed

Not the whole fleet, only S/N’s 2444-2777 and aircraft with a wing delivered or overhauled by Robin after Feb 2000.
I regularly fly S/N’s 2747 and 2770 – both “only” restricted in operation, not grounded.

Friedrichshafen EDNY

Thanks, ours is much older so looking as though we’ve escaped this one ! Phew !


Are these wooden spars?

Shoreham EGKA, United Kingdom



How on earth can one fix a wooden spar?

Shoreham EGKA, United Kingdom

With wood glue?

LFMD, France

Some very general explanations concerning the repair of wood aircraft components, @Peter:

The technique used for composite parts is similar. However, the slope of the scarf of the stressed part has to be much (!!!) shallower than 15:1.

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