47-06-06 GLOBE: (Was Mandatory Note 9 of AD-766-5.) Applies to Models GC-1A and GC-1B Aircraft Serial Numbers 3 to 408 Inclusive; 1001 to 1460 Inclusive; and 2001 to 2329 Inclusive.
Compliance required prior to April 1, 1947.
Cut off the egress end of the engine breather line to terminate the line 1-inch above the grill opening. This will prevent clogging of the line due to formation of ice during cold weather operation or the entry of foreign matter caused by the propeller blast.
(Globe Customer Service Maintenance Bulletin No. 11 covers this same subject.)