AD/B767/24 Amdt 1 - Door Counter Balance Torsion Spring
1AD/B767/24 Amdt 1 - Door Counter Balance Torsion Spring
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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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Boeing 767 Series Aeroplanes
AD/B767/24
Amdt 1
Door Counter Balance Torsion Spring 5/93
Applicability: Model 767 series aircraft with entry or service doors equipped with slide rafts; line positions 002 through 409.
Requirement: Action in accordance with the technical requirements of FAA AD 93-01-19 Amdt 39- 8473.
Note: Boeing ASB 767-52A0053 Revision 2 refers.
Compliance: As specified in the Requirement Document with a revised effective date of 29 April 1993.
Background: A broken counterbalance torsion spring condition would require extra effort to unlatch the door, and manual assistance to open the door in an emergency. A broken spring could jam the counterbalance assembly and prevent opening of the door during an emergency evacuation. Amendment 1 is issued in response to a new FAA AD which provides for an optional installation which, when accomplished, constitutes terminating action for the currently required repetitive operational checks.