AD/GENERAL/49 Amdt 3 - TKK Altimeter Mechanisms Incorporated in Altimeters of Various Brand Names - Modification (Cth)

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

Aircraft - General

AD/GENERAL/49 Amdt 3

TKK Altimeter Mechanisms Incorporated in Altimeters of Various Brand Names - Modification

7/75

Applicability: All aircraft fitted with altimeters as detailed in the requirement.

Requirement: 1. Altimeters Affected :- T.K.K. P/N LA40-1 serial nos. 1091 to 1183; LA40-1A serial nos. 1028-1108; LA42-1A (WE 1067-1) serial nos. 1118 to 1297; LA42-1A (WE 1067-3) serial nos. 1001 to 1018; LA44-1 serial nos. 61150 to 61157, 61379 to 61391, 61547-61563; LA45-1 serial nos. 1003 to 1019, 61158 to 61173; LA71-11 serial nos. 1001 to 1078, 74187 to 74193, 74195 to 74204, 74206 to 74211, 74213 to 74216, 90961 to 90990; LA71-11A serial nos. 1001 to 1093; LA72-11 serial nos. 1001 to 1059, 73369 to 73443, 90891 to 90940, 90941 to 90960. - UNITED INSTRUMENTS P/N 5932-() serial nos. 47851 to 69000; 5934-() serial nos. 70000 to 102000, A1 to A9999, B1 to B9999, and C1 to C2860;

Note 1: United Instruments P/N 5932 ( ) Altimeters may be additionally identified as T.K.K. model LA4 T.S.O. C-10b; - United Instruments P/N 5934 ( ) Altimeters may be additional identified as T.K.K. Model LA7 T.S.O. C-10b;

Note 2: United Instruments Altimeters may also be identified by various aircraft manufacturers part numbers. Some but not all are:

- Beech P/N 50-380094-( ), 50-384119-( ), 58-380011-( ), 58-380012-( ), 58-380041-( ), 100-324056-( ), 169-380073-( ). - Cessna P/N C661011-( ), C661071-( ), C661025- ( ), C661014-( ). - Piper P/N 99009-( ), 450-611( ), 450-694-( ), PS50008-( )-( ), 550-488-( ), 550-489-( ), 550-490-( ), 555-491-( ), 559-492-( ), 550-493-( ), 322-81-03, 322-81-04. - Bell 206-070-263- ( ), 47-711-303-( ). INSTRUMENT AND FLIGHT RESEARCH P/N IFR-41 Serial Nos. 400 to 1939. AIRCRAFT INSTRUMENT AND DEVELOPMENT P/N 13-2100-1; 13-2100-2; 13-2000-4; 13-2000-5, 350-303, 350-304 except that altimeters with "Aerosonic", "Kollsman" or "Conn" imprinted on the case are not applicable.