Airworthiness Directive

MANDATORY SERVICE1. PLANNING INFORMATIONRUDDER PEDAL WELD ASSEMBLYPACSB / XL / 050ISSUE 1A. EFFECTIVITY All Pacific Aerospace Limited 750XL aircraftup to S/N XL 111B. REASON Possibility of cracks forming around thewelds on the Rudder Pedal WeldAssemblies, at the rudder cable pulley.C. DESCRIPTION There have been instances of cracks beingfound on the end of the pedals where thewelded rudder cable pulley is located onearly 750 XL aircraft. Check the areasaround the weld with a dye penetrating crackdetection process. If there are any signs ofcracking being present, a repair schemeneeds to be incorporated.BULLETIND. COMPLIANCE The aircraft should be inspectedimmediately. If there are any signs of cracksgreater than ¼ inch, the aircraft should notbe flown and repair scheme PAC/XL/0461incorporated. Aircraft found with cracks lessthan ¼ inch should be monitored weekly andrepair scheme PAC/XL/0461 incorporated atnext 150 hour Inspection.E. APPROVAL By the delegated authority.F. TOOLING No special tools are required.G. WEIGHT AND BALANCE Negligible weight change.H. REFERENCE P750 XL Maintenance Manual Ch 27-20-00PAL Drawing 11-03221/22I. HOURS REQUIRED 4 hours LabourIssued: 15 December 2010 Page 1 of 4

PACSB / XL / 050ISSUE 12. ACCOMPLISHMENT INSTRUCTIONSInspection of Rudder Pedal Weld AssemblyA. Method:1) The rudder pedal weld assembly should be checked around the welds, at the ruddercable pulley, using a dye penetration technique. An example of the potential cracking isshown in Figure 1.Site of potential crackingFIGURE 1RUDDER PEDAL WELD ASSEMBLYIncorporation of Repair.A. Method:1) Remove Rudder Pedal assembly IAW P750XL Maintenance Manual, Chapter 27-20-00.It may be possible to carry out the repair in situ.2) Carry out repair of Rudder Pedal Weld Assemblies IAW PAC/XL/0461 (refer to Drawing11-03221/22).3) Upon completion of the repair, install Rudder Pedal assembly IAW P750XL MaintenanceManual, Chapter 27-20-00.Page 2 of 4 Issued: 15 December 2010

PACSB / XL / 050ISSUE 13. CERTIFICATIONRecord compliance with this bulletin in the aircraft Log Book.NZCAA are aware of this Service Bulletin and an emergency AD is anticipated.4. MATERIAL REQUIRED:Description Part Number Qty RequiredLEVER ASSY LH 11-03221-5 1LEVER ASSY RH 11-03222-6 1REPAIR TUBE LH 11-03221-16 1REPAIR TUBE RH 11-03222-17 1BOLT NAS6203-20 4WASHER AN960-10 4NUT MS21042L3 4ADHESIVE SEALANT AMS-S8802 A/RIssued: 15 December 2010 Page 3 of 4