Airworthiness Directive D-1988-028R1 Luftfahrt-Bundesamt Airworthiness Directive Section Hermann-Blenk-Str. 26 38108 Braunschweig GERMANY This Airworthiness Directive supersedes the LBA-Airworthiness Directive 1988-028 of 23 February 1988 Glasflügel Affected: Kind of aeronautical product: Manufacturer: Type: Models affected: Serial Numbers affected: German Type Certificate No.: Effective Date: 12 December 2005 Sailplane Hansjörg Streifeneder, Grabenstetten Germany Club-Libelle 205, Mosquito Club-Libelle 205 TC-No. 304 Club Libelle 205, Hornet, Hornet-C Mosquito TC-No. 318 Mosquito, Mosquito B, Glasflügel 304, Glasflügel 304 B All 304 and 318 Subject: Elevator drive Reason: Difficulties in the control of the sailplane were encountered when an elevator drive bracket broke on one side in flight. The reason for this revision was an error in the English translation of this airworthiness directive. Under the rubric "Models affected" were inadvertently not specified the models “Mosquito B” and “Glasflügel 304 B”. This document corrects this failure. In all other respects, the original document remains the same. Action: 1. On sailplanes having an earlier type elevator drive bracket (whithout reinforcements identified as part 6, modifi- cation 2 , in accordance with the drawing of the Technical Note) a visual inspection for possible cracks in the bracket arms must be carried out. It must be checked that the bracket arms are not twisted out of line. 2. On sailplanes having an earlier type elevator drive bracket (whithout reinforcements), the bracket must either be reinforced according to the drawing of the Technical Note or be replaced by a reinforced bracket. When the tailplane is reassembled, it must be made sure that the correct number of spacing washers are fitted between the bracket arms and the ball bearing (tag washers when removing the bracket). Compliance: Action step 1 : Action step 2 : Daily, prior to first flight Not later than April 30th, 1988 Technical publication of the manufacturer: Hansjörg Streifeneder Technical Note No. 205-16, 206-12, 303-12, 304-3 of January 12, 1988. These technical Notes become herewith part of this AD and may be obtained from: Hansjörg Streifeneder, Glasfaser-Flugzeug-Service GmbH, Hofener Weg, 72582 Grabenstetten, GERMANY Accomplishment and log book entry: Welding according to drawing No. 205-33-9 (modification 2) must be done by a licensed aircraft welder. Accomplishment of action 1 must be done by a skilled person. Accomplishment of action 2 must be entered in the sailplanes log by a licensed inspector. Enquiries regarding this Airworthiness Directive should be referred to Mr. Martin Borsum, Airworthiness Directive Section at the above address, fax-no. 0049-531-2355-725 or m.borsum@lba.de. Please note, that in case of any difficulty, reference should be made to the German issue! -2- Note: The reinforced elevator bracket, manufactured according to drawing No. 205-33-9 (modification 2) or the additional metal strips with welding wire 1.7734.2 may be obtained from: Hansjörg Streifeneder, Glasfaser-Flugzeug-Service GmbH, Hofener Weg, 72582 Grabenstetten, GERMANY EASA-Approval Approved by the European Aviation Safety Agency (EASA) under approval no. 2005-6429 on 05 December 2005.