British Gliding Association - Technical News Sheet TNS 1-2010 Issue 1-2010 Date: 05/03/2010 Airworthiness Information 1. All-Star SZD Puchacz Reported by David Mason, Mason Restoration Excessive corrosion of nose wheel aluminium mounting brackets (Advisory) 2 LET L23 Super Blanik MB L23/052a Cracks on internal structure of elevator hinges (Mandatory) 3 SN Centrair (Information) List of Airworthiness Directives updated in Compendium of Airworthiness Directives http://www.gliding.co.uk/bgainfo/technical/ads.htm 4 Scheibe SF 25C, SF 25E AD 2010-0011-E, SB 653-64 (Mandatory) Aileron and tail plane attachment tube rivets inspection and replacement http://ad.easa.europa.eu/blob/easa_ad_2010_0011_E.pdf/EAD_2010-0011-E_1 5 Schempp-Hirth Discus CS TN 360-26 Failure of seat back upper adjustment modification http://www.schempp-hirth.com/fileadmin/tmdocs/360-26-2725.pdf (Recommended) 6 ZS Jezow PW5 & PW6 BGA 048/01/2010 issue 1 Precautionary inspection of tail plane attachment fittings for cracks http://www.gliding.co.uk/bgainfo/technical/inspections.htm (Mandatory) 7 ZS Jezow PW6 (Information) List of Airworthiness Directives and Service Bulletins updated in Compendium of Airworthiness Directives http://www.gliding.co.uk/bgainfo/technical/ads.htm ENGINES 8 Solo engine maintenance TM 4603-10 (Mandatory) To help clarify the requirements for engine maintenance for aircraft fitted with Solo 2 350 models of engines; Solo 2 350 engine is subject to a 5 year special inspection and 200 hour TBO Solo 2 350 engine suffix C or D is subject to a 200 hour TBO (there is currently no requirement for a 5 year inspection) (Suffix C and D engines are fitted to Ventus cM, Duo Discus T, later Nimbus 4DT list may not be complete) http://www.schempp-hirth.com/fileadmin/Pdfs/TMDocu_D/Sonderkontrolle-2350-Englisch- klein.pdf PROPELLERS 1 TNS 1-2010 9 MT Propeller Various AD 2006-0345R1, SB No 8B (Mandatory) Blade leading edge protection inspection. Introducing pilot/owner before flight inspection authorisation. http://ad.easa.europa.eu/blob/easa_ad_2006_0345_R1.pdf/AD_2006-0345R1_1 EQUIPMENT 10 L'Hotellier connectors with "Wedekind" sleeves Reported by Bruno Brown, Shenington Gliding Club (Advisory) Certain types of Wedekind sleeve locked L'Hotellier connectors can be unsafe due to wear. If wear is found and there is any possibility of even partial disengagement, the coupling must be replaced. 11 Thinback T104 & Slimpack T204 Parachutes AD 2010-0009-E (Mandatory) Ripcord and pin inspection (Advisory notice only as parachutes are personal equipment) http://ad.easa.europa.eu/blob/easa_ad_2010_0009_E.pdf/EAD_2010-0009-E_2 12 Halon 1211 Fire Extinguishers AD 2009-0262R1, ASB 26-115 issue C (Mandatory) AD revised to update SB revision. http://ad.easa.europa.eu/blob/easa_ad_2009_0262_R1.pdf/AD_2009-0262R1_1 General Information 1. Turnbuckle locking SIB 2010-06 (Advisory) EASA have published Safety Information Bulletin 2010-06 to alert engineers of the dangers of incorrect control cable turnbuckle locking and possible failures if the incorrect method used. http://ad.easa.europa.eu/blob/SIB_201006_Turnbuckles.pdf/SIB_2010-06_1 2. ARC Issue problems Many inspectors are failing to correctly apply the ARC dating protocols and incorrectly completing ARC's. See Engineering News No 58 March 2010 for details 2 Compliance Statement: All mandatory inspections and modifications have been included up to the following: CAA CAP 747 Mandatory Requirements for Aircraft, issue: 3 amendment: 2010/02 State of Design Airworthiness Directives review date: 05 March 2010 For reference: FAA Summary of Airworthiness Directives. Bi-weekly listing 2010-04 EASA Airworthiness Directives review date: 05 March 2010 CAA CAP 476 Mandatory Aircraft Modifications and Inspections Summary issue: 287 Maintenance Programme: CAA/LAMS/A/1999. Issue 2, amendment 0 CAA/LAMP/A/2007, Issue 1, amendment 2/2008 BGA GMS 2005, Issue 1, amendment 1 Jim Hammerton Chief Technical Officer TNS 1-2010 3