61-10-02 CONVAIR: Amdt. 283 Part 507 Federal Register May 11, 1961. Applies to All Model 22 (880) Aircraft.
Compliance required as indicated.
Two cases of failure of the forward engine mount support fitting P/N 22-02593-1, have been reported. Failure of this part permits the engine to rotate with the forward end coming to rest on the bottom of the engine pod structure.
(a) Unless P/N 22-02593-3 or an FAA approved equivalent has already been installed, within the next 250 hours' time in service and at intervals of 250 hours' time in service thereafter, remove and inspect by means of dye penetrant or magnetic particle inspection, or equivalent, P/N 22-02593-1 for cracks and/or material defects. If cracks and/or material defects are found, the part must be replaced prior to further flight.
(b) When P/N 22-02593-1 has been replaced with P/N 22-02593-3 or FAA approved equivalent, the inspection required above may be discontinued.
(Convair Service Bulletin No. A71-2 covers this same subject.)
This directive effective May 11, 1961.