AD/SWSA226/73 Amdt 1 - Current Limiter Protection
1AD/SWSA226/73 Amdt 1 - Current Limiter Protection
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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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.