COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Radio Communication and Navigation Equipment AD/RAD/33 Radio Magnetic Indicator - Modification 6/76 Applicability: Collins 332C-10 Radio Magnetic Indicators as listed:- P/N 622-0555-001 S/N 729 and below. P/N 622-0555-002 S/N 963 and below. P/N 622-0555-003 S/N 3593 and below, 3595 thru 3600, 3602 thru 3611, 3613 thru 3628. P/N 622-0555-004 S/N 3693 and below, 3695 thru 3706. P/N 622-0555-005 S/N 3252 and below. P/N 622-0555-006 S/N 4156 and below. P/N 622-0555-007 S/N 3208 and below, 3210 thru 3231, 3233 thru 3239. P/N 622-0555-008 S/N 2805 and below. Requirement: 1. Install a placard on the glass face of each Collins 332C-10 indicator not already modified in accordance with Collins 332C-10 RMI SB No. 6, which reads - "USE ADF MODE ONLY". 2. Modify the 332C-10 indicator(s) in accordance with Collins 332C-10 RMI SB No. 6 dated Feb. 16, 1976 or later approved revision. When Para. 2 has been accomplished, compliance with Para. 1 is no longer required. Compliance: For Para. 1 - Within 100 hours time in service after 30 June 1976. For Para. 2 - Before 1 March 1977.