75-05-13 GENERAL ELECTRIC: Amendment 39-2114 as amended by Amendment 39-2524. Applies to all General Electric CF700-2C, CF700-2D, and CF700-2D-2 turbofan engines having compound turbine and fan blade, Part Number 6002T57P01, with the following serial numbers:
001CY through 9994CY
001DN through 999DN
001CZ through 1038CZ
001DO through 999DO
001DA through 999DA
001DP through 999DP
001DB through 999DB
001DQ through 999DQ
001DC through 999DC
001DR through 999DR
001DE through 999DE
001DS through 999DS
001DF through 999DF
001DT through 999DT
001DG through 999DG
001DU through 999DU
001DH through 999DH
001DV through 999DV
001DW through 999DW
001DJ through 999DJ
001DX through 999DX
001DK through 999DK
001DY through 999DY
001DL through 999DL
001DI through 999DI
001DZ through 999DZ
001DM through 999DM
Compliance required as indicated unless already accomplished.
To preclude possible failures of compound turbine and fan blades, perform an eddy current inspection as specified in the Accomplishment Instructions section of General Electric Alert Service Bulletin No. (CF700) A72-124, or (CF700) A72-125 or later FAA approved revisions or a fluorescent-penetrant inspection as specified in General Electric Overhaul Manual SEI-133 Section 72-72-1, or equivalent inspection method approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region, in accordance with the following schedule:
a. Compound turbine and fan blades with 400 or more hours total time in service on the effective date of this AD:
Inspect within the next 30 hours time in service and inspect every 400 hours time in service thereafter.
b. Compound turbine and fan blades with less than 400 hours total time in service on the effective date of this AD:
Inspect prior to the accumulation of 430 hours total time in service and inspect every 400 hours time in service thereafter
.
Replace all compound turbine and fan blades, confirmed as cracked, prior to further flight.
Upon request of the operator, an FAA Maintenance Inspector, subject to prior approval of the Chief, Engineering and Manufacturing Branch, FAA, New England Region, may adjust the inspection interval specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for that operator.
Amendment 39-2114 was effective March 12, 1975.
This amendment 39-2524 becomes effective March 3, 1976.