Gliders Diamond/Hoffmann H-36 Dimona

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Airworthiness Directive Schedule Gliders Diamond/Hoffmann H-36 Dimona 30 June 2011 Notes 1. This AD schedule is applicable to Diamond/Hoffmann H-36 Dimona gliders manufactured by Hoffmann Flugzeugbau/Aircraft under European Aviation Safety Agency (EASA) Type Certificate No. A.065 (formerly Austro Control (Austrian CAA) Type Certificate Data Sheet no. SF 3/82). The EASA Type Certificate Holder is Diamond Aircraft Industries. 2. The date above indicates the amendment date of this schedule. 3. New or amended ADs are shown with an asterisk * Contents DCA/H36/1 Airworthiness Directive Compliance at Initial Airworthiness Certificate Issue .................... 2 DCA/H36/2 Fuel Tank – Inspection and Replacement ......................................................................... 3 * DCA/H36/3 Air Brake Control System – Inspection and Replacement ................................................. 4 Issued 30 June 2011 Page 1 of 4 CAA of NZ Gliders Diamond/Hoffmann H-36 Dimona DCA/H36/1 Airworthiness Directive Compliance at Initial Airworthiness Certificate Issue Applicability: Model H36 Dimona aircraft Requirement: Compliance with the following Luftfahrt-Bundesamt (LBA) and Austrian CAA (Austro Control) Airworthiness Directives (as applicable) is required: Austro Control/LBA AD No: Hoffmann/Diamond Aircraft Service Information: Subject: AD Requirement: LBA AD 1982- 236 (In German) SB 2E (In English) Water Accumulation - Aileron, Elevator and Wing Installation of Drain Holes LBA AD 1982- 237/2 (In German) SB 3E (In English) Wing Skin Debonding Vne Limitation, Inspection and Rework LBA AD 1983- 156 (In German) SB 6E (In English) Fuel Tank Capacity Inspection, Placard and AFM Amendment LBA AD 1983- 157/2 (In German) SB 7/2E (In English) Engine Mount Supports Preflight Inspection and AFM Amendment. LBA AD 1984- 205 (In German) SB 11E (In English) Fuel System AFM Amendment and Fuel Pump Modification LBA AD 1985- 034 (In German) SB 12 (in English) Spin Characteristics Placard and AFM Amendment Austro Control AD 52/2 (LBA AD 1986-177/3 refers) Both ADs in German Hoffmann Aircraft SB 19 (In English) Wing Attachment Modification Modification, AFM Amendment and ASI Markings Austro Control AD 53 (LBA AD 1987-093 refers) Both ADs in German Hoffmann Aircraft SB 15/2 (In English) Horizontal Stabiliser Forward Attachment Inspection and Modification Austro Control AD 54 (LBA AD 1987-094 refers) Both ADs in German Hoffmann Aircraft SB 17 (In English) Shoulder Harness Fittings Inspection and Rework Austro Control AD 55 (LBA AD 1988-108 refers) Both ADs in German Hoffmann Aircraft SB 24 (In English) Main Bolts Inspection and Rework Austro Control AD 65 (LBA AD 1992-195 refers) Both ADs in German Hoffmann Aircraft SB 25/1 (In English) Life Limit Extension Program Inspections and Finite Life Limits Issued 30 June 2011 Page 2 of 4 CAA of NZ Gliders Diamond/Hoffmann H-36 Dimona Austro Control AD 85 in English (LBA AD 1996-203 refers) Diamond SB 51 (in English) Elevator Rib and Horn Inspection and Modification Note: Each part of this AD (each individual LBA AD and Austrian AD) shall be certified in the aircraft log book separately. Compliance: Before issue of a New Zealand Certificate of Airworthiness, or at the next ARA inspection after the effective date of this AD whichever is the sooner, unless previously accomplished. Effective Date: 24 June 2010 DCA/H36/2 Fuel Tank – Inspection and Replacement Applicability: Model H36 Dimona aircraft manufactured before 1985 fitted with a fuel tank made from FRP. Requirement: To prevent fuel starvation due to deposits from the fuel tank blocking the fuel lines which could result in loss of engine power, accomplish the following: 1. Amend the aircraft maintenance manual per the instructions in Hoffmann Aircraft Service Bulletins No. 13/1 dated 23 October 1989 or later approved revisions. 2. Inspect the fuel tank and filters per the instructions in Hoffmann Aircraft Service Bulletins No. 13/1 dated 23 October 1989 or later approved revisions. If any deposits are found as described in SB No. 13/1, replace the fuel tank with an aluminium tank 820.5.12S3a per the instructions in SB No. 13/1 and Hoffmann Modification Instruction No. 4 before further flight. Note: Once the tank has been replaced with an aluminium tank 820.5.12S3a accomplish the fuel tank inspections per the instructions and intervals specified in the aircraft maintenance manual. (Austrian CAA AD 60 and LBA AD 1985-128/2 refer) \Compliance: 1. At the next maintenance inspection unless previously accomplished. 2. Within the next 50 hours TIS unless previously accomplished and thereafter at intervals not to exceed 100 hours TIS or annual inspection whichever occurs sooner until the FRP tank is replaced with an aluminium tank 820.5.12S3a. Effective Date: 24 June 2010 Issued 30 June 2011 Page 3 of 4 CAA of NZ Gliders Diamond/Hoffmann H-36 Dimona Issued 30 June 2011 Page 4 of 4 CAA of NZ * DCA/H36/3 Air Brake Control System – Inspection and Replacement Applicability: Model H 36 “Dimona” aircraft, all S/N. Requirement: To prevent failure of the air brake control system due to possible corrosion of the torsion tube which could result in reduced aircraft control, accomplish the following: 1. Remove, test and inspect the air brake control system torsion tube for corrosion per the instructions in DAI MSB 36-105 revision 1 and the associated Work Instruction WI-MSB 36-105. If any corrosion damage is found, replace the affected torsion tube with a serviceable part. Prior to installation apply anticorrosive agent (ACF 50, Dinitrol AV8, or ARDROX AV30, or equivalent) to the inside of the torsion tube per the instructions in DAI Work Instruction WI-MSB 36-105. If no corrosion damage is found, apply anticorrosive agent (ACF 50, Dinitrol AV8, or ARDROX AV30, or equivalent) to the inside of the torsion tube prior to reinstallation