AD/SWSA226/73 Amdt 1 - Current Limiter Protection (Cth)

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

Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes

AD/SWSA226/73 Amdt 1

Current Limiter Protection 7/96

Applicability: This Directive is applicable to the following aircraft models equipped with a direct current generator:

Model Serial Numbers

SA226-T, SA226-AT, SA226-TC and SA226-T(B)

SA227-AC, SA227-AT, SA227-BC and SA227-TT

All

420 through 783 and 785 through 789, all inclusive

SA227-CC and SA227-DC 784 and 790 to 883 inclusive

Requirement: Relocate the left hand (LH) and right hand (RH) essential bus current limiters in accordance with the following Fairchild Aircraft Service Bulletins as appropriate:

Service Bulletin Date Model 226-24-034 29 September 1994 SA226 Series 227-24-015 Rev 1 23 February 1995 SA227-AC, SA227-AT, SA227-BC and SA227-TT CC7-24-002 29 September 1994 SA227-CC and SA227-DC

Note: FAA AD 95-17-09R1 Amdt 39-9550 refers.

Compliance: The compliance remains unchanged as 'Within 2,000 hours time in service after 9 November 1995'. This amendment is effective from 30 June 1996.

Background: Action required by this Directive is designed to eliminate the possibility of a failure of the current limiter in combination with an engine failure causing loss of power to the essential bus.

This amendment revises the serial number range for certain SA-227 aeroplanes and corrects the SA-227 model designation.

The original issue of this Airworthiness Directive became effective on 9 November 1995.