80-15-08 SLINGSBY: Amendment 39-3849. Applies to Model T65A Vega gliders, all serial numbers up to and including 1913, certificated in all categories.
Compliance required as indicated.
To prevent main wing failure due to possible inadequate bonding of the main wing shear web to the wing spar cap, accomplish and operate the glider in accordance with the following:
(a) Prior to further flight:
(1) Install a placard in full view of and legible to the pilot which reads:
Both VNE and rough air airspeed are restricted to 95 kts.
maximum. Maximum gross weight is limited to 775 lbs.
(2) Install a red radial line on the airspeed indicator dial face at 95 kts., VNE, indicated airspeed. Check the airspeed indicator dial face to determine if it is free to turn. The red radial line may be installed on the airspeed indicator face glass, if the face glass is firmly fixed and not free to turn. If the face glass is free to turn, install the red radial line on the airspeed instrument face.
(b) Within the next 100 hours time in service after the effective date of this AD, unless already accomplished, replace the main wing with a Slingsby certified serviceable wing which is identified with "Mod. 27 embodied" adjacent to the wing serial number or with a serviceable wing approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Office, Brussels, Belgium, at which time the limitations imposed by paragraph (a) of this AD no longer apply.
NOTE: Slingsby Technical Instruction No. 38 pertains to this AD and provides guidance to glider owners affected by this AD on obtaining serviceable replacement wings from Slingsby or through Slingsby authorized representatives.
This amendment becomes effective July 17, 1980, as to all persons except to those persons to whom it was made immediately effective by telegraphic AD T79EU-12, issued September 12, 1979, which contained this amendment.