1AD/SF340/58 Amdt 1 - Windshield Wiper Arm

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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SAAB SF340 Series Aeroplanes

AD/SF340/58

Amdt 1

Windshield Wiper Arm 4/98

Applicability: Model SF340A with serial numbers SF340A-004 through -159.

Model 340B with serial numbers 340B-160 through -399.

Requirement: Action in accordance with SAAB Service Bulletin 340-30-081.

Note: LFV AD 1-115R1 refers.

Compliance: For all aircraft that have exceeded 4000 flight hours: Unless already accomplished, before 26 June 1998.

Note: A repetitive inspection is planned to be incorporated in the MRB or the AMM.

This amendment becomes effective on 26 March 1998.

Background: A windshield wiper blade separated from the wiper arm while the wiper system was operating in flight. An investigation revealed that the wiper blade and arm tip separated from the wiper arm at the rivet attachment point. The incident resulted in propeller damage and penetration of the left side fuselage skin.

Amendment 1 is issued in response to a revision of the related LFV AD which introduces a new requirement document, which affects another type of wiper arm assembly.

The original issue of this airworthiness directive became effective on 14 August 1997.