47-02-08 CULVER: (Was Mandatory Note 1 of AD-778-2.) Applies to Models V and V2 Aircraft Serial Numbers V-1 to V-21 Inclusive.
Compliance required prior to April 1, 1947.
To provide a complete firewall constructed material, remove the cold air scoop from the firewall and cover the firewall opening with a plate of suitable firewall material.
(Culver Service Bulletin No. 5 covers this same subject.)