Service bulletin

SB 42Fl-01 / 2010

Subject:

Front Strut 42A-06.00

Affected:

Ikarus C42 and C42 B equipped with floats.

Reason:

On two IKARUS C42 Floatplanes with previous accidents cracks have been found

at the front strut's upper connection to the main tube. The crack occurs on the inner

tube where it is covered by an outer sleeve and is not visible from the outside.

Action:

To check the front strut a borescope is needed with a 90° field of view. The

borescope can be inserted into the front strut through the opening visible from

beneath the aircraft. At the height of the bolt marked on the drawing the aluminum

tube must be carefully inspected for any signs of cracking.

 

 

Airworthiness Implications:

Should the above-mentioned defect occur, the airworthiness of the aircraft is

affected that it may only be operated once the appropriate action has been properly

undertaken.

Accomplishment instructions:

The work may be carried out by a qualified person.