Maintenance Manual LS4
Issued: February 2019 TN4049
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
4.2.2 Gap seals aileron
Warning: It is not allowed to operate the glider without aileron gap seals.
4.2.2.1 Gap seals aileron upper side LS4 and LS4-a
Caution: This type of seals is not permitted in case TN4049 neo-Winglets was
performed.
Apply tape (Tesaband 651 white 38 mm <1.5 in.> wide) with ailerons
deflected fully downwards.
Note: Don’t pull the tape too tight as with time the tape will shrink.
Remove residuals of adhesive with petroleum ether (pure petroleum spirit).
4.2.2.2 Gap seals aileron upper side LS4-b, optionally LS4 and LS4-a,
necessary in case TN4049 was performed
Mylar seals in combination with selfadhesive Teflon glas tape is used.
Installation see sketch below.
Glue the Teflon glas tape to the aileron in such a way that the trailing edge of
the Teflon glas tape is approx. 2 mm <0.08 in.> behind the trailing edge of
the Mylar seal with the aileron deflected fully upwards.
The bonding film should be 2 mm over the Teflon glas tape.
Warning: The sealing effect is only by the Teflon glas tape (2). Mylar seals
alone are not sufficient.
Tesafilm white 4104, 19mm
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