AD 74-13-09

74-13-09 AIRESEARCH MANUFACTURING COMPANY OF ARIZONA: Amendment 39-1882 is further amended by Amendment 39-1903. Applies to Model TFE731-2-1C, and -2-2B engines installed in, but not limited to AMD Falcon 10 aircraft, certificated in all categories.

Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished, and prior to installing replacement fuel pump assemblies.

To detect the improper configuration of the fuel pump, accomplish the following:

(a) Inspect the fuel pump assembly in accordance with the instructions contained in AiResearch Service Bulletin TFE731-73-3004, dated June 14, 1974, or later FAA-approved revisions.

(b) The inspection prescribed in paragraph (a), above, need not be accomplished prior to the installation of replacement fuel pumps identified as P/N 3070851-7 and -8, or later dash number designations.

(c) Equivalent procedures may be approved by the Chief, Aircraft Engineering Division, FAA Western Region, upon submission of adequate substantiation data.

(d) Aircraft may be flown to a base for performance of maintenance required by this AD per FAR's 21.197 and 21.199.

Amendment 39-1882 became effective June 28, 1974. This Amendment, 39-1903 becomes effective July 31, 1974.