60-22-01 LAKE (COLONIAL): Amdt. 213 Part 507 Federal Register October 29, 1960. Applies to Colonial C-2 Serial Numbers 115, 121, 126 and Subsequent. Lake Serial Numbers 244 and 245.
Compliance required within 100 hours' time in service after effective date of this amendment.
Due to several failures of the engine mount bolts, the following shall be accomplished:
(a) Replace AN 7-35 engine-to-engine mount bolts with MS 20007-48 or NAS 464- 7L-51 strength bolts or equivalent (4 places).
(b) Replace Lord Mounts P/N J-7402-1 with Lord Mounts P/N J-7402-5 or -6, or equivalent (4 places).
(Lake Service Bulletin Number 2 covers this same subject.)
This directive effective November 29, 1960.