COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes

AD/LA-4/20 Main Landing Gear - Rocker Castings

P/N 2-4113-1 - Inspection and Replacement

Applicability: All model LA4-200 with S/Nos. 740 to 997.

1/80

Requirement: 1. Visually inspect Rocker Castings P/No. 2-4113-1, located at upper end of main landing gear struts, for cracks radiating from the bolt holes.

2. Replace Rocker Castings P/No. 2-4113-1 with fabricated items P/Nos. 2-4113-3 or 2-4110-7.

Note: SB No. B63-4497 refers.

Compliance: 1. At each daily or overnight inspection. For aircraft maintained in accordance with ANO 100.5.1 this Directive shall be entered on the maintenance release as maintenance required. The inspection may be performed by the pilot in command, in which case certification is not required. In all other cases certification may be made on the maintenance release. This inspection may also be performed and certified by any Licensed Aircraft Maintenance Engineer.

2. Before 1 January 1981.

Background: Failure of the subject P/No. Rocker Castings has occurred on overseas registered aeroplanes.