61-22-07 MOONEY: Amdt. 359 Part 507 Federal Register November 2, 1961. Applies to the M-20, M-20A, and M-20B Aircraft, Serial Numbers 1001 Through 1875.
Compliance required within 25 hours' time in service after the effective date of this AD unless already accomplished.
To prevent failures of the fuel and oil pressure gage lines in the accessory compartment, the following replacement is required:
Replace the copper fuel and oil pressure gage lines from the firewall to the engine pickup location with flexible hose in accordance with Mooney Service Letter 20-82A or replace with other FAA approved equivalent lines or fittings.
(Mooney Service Letter 20-82A covers this same subject.)
This directive effective November 2, 1961.