76-16-02 AIRBORNE MANUFACTURING COMPANY: Amendment 39-2685. Applies to Models 113A, 200CC, 200CW, 220CC, 220CW, 221CC, 222CW engine driven pumps.
Compliance is required within the next 25 hours time in service, or by next annual inspection, whichever occurs first, after the effective date of this AD, unless already accomplished.
To prevent loss of vacuum pressure with the accompanying loss of directional or attitude gyro function accomplish the following:
Remove from service and replace with another serviceable approved vacuum pump all Airborne engine driven vacuum pumps manufactured prior to 1966 for which the model and serial numbers are listed below:
Model
Year
Serial Numbers
113A
1960
1D1 thru 12D1199 inclusive
1961
1E1 thru 12E2288 inclusive
1962
1F1 thru 12F3411 inclusive
1963
1G1 thru 12G4230 inclusive
1964
1H1 thru 12H1688 inclusive
1965
1J1 thru 12J210 inclusive
200CC, 200CW
1963
5G43 thru 12G903 inclusive
1964
1H1 thru 12H5623 inclusive
1965
1J1 thru 12J9397 inclusive
220CC, 220CW
1964
2H1 thru 12H680 inclusive
1965
1J1 thru 4J393 inclusive
221CC, 222CW
1965
3J1 thru 12J371 inclusive
Airborne Manufacturing Company Service Letter No. 16, dated January 29, 1976, also pertains to this subject.
This amendment becomes effective August 11, 1976.