COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Instruments and Automatic Pilots
AD/INST/32 Altimeters 5/86
Applicability: United Instruments Inc altimeters 5934 series with the following serial numbers: 6C461 thru 6C999
7C000 thru 7C999
8C000 thru 8C999
9C000 thru 9C999
0D000 thru 0D999
1D000 thru 1D999
2D000 thru 2D869
manufactured between 1 February 1985 and 28 February 1986 and not identified as modified by a 6mm yellow dot on the lower half of the rear case and the letter "M" stamped on the data plate just before the word "altimeter".
Requirement: Action in accordance with United Instruments Inc SB No. 2.
Note: FAA AD 86-05-02 refers.
Compliance: Prior to issue of the next Maintenance Release after 31 May 1986.
Note: Corrective action MAY be carried out in Australia by an approved workshop and the altimeter appropriately identified.
Background: Several reports have been received stating that a slight outward pull on the barometric scale setting knob may disconnect the millibar scale from the altitude indication pointers.