1AD/PITTS S-2/5 - Induction Air Box Door - Inspection and Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Pitts S-1 and S-2 Series Aeroplanes

AD/PITTS S-

2/5

Induction Air Box Door - Inspection and Modification

9/73

Applicability: Model S-2A with S/Nos. 2001 to 2059. Requirement: 1. Inspection:

Visually inspect the induction air box flapper door assembly, Pitts P/N 2-7112-7, for cracks in the welded areas.

Note: This inspection may be performed by the pilot.

2. Modification:

Install stiffener, Pitts P/N 2-7112-16, to the induction air box flapper door assembly in accordance with Pitts SL No. 2; or

Pitts SL No. 2 - For Aircraft with more than 50 hours time in service from new.

Compliance: 1. Inspection: Prior to first flight of each day until incorporation of the modification.

2. Modification: Within 100 hours time in service after 28 September 1973.