Document ID: chunk:federal_register_of_legislation:F2005L01791:body:0:p5
Version: federal_register_of_legislation:F2005L01791
Segment Type: other
Provision Reference: 
Character Range: 12696–15986

out of the engine, whichever occurs first, after the effective date of this Directive.

             Requirement 3(b)(i):  At intervals not to exceed 3,600 hours TIS since the last replacement of the bull gear, part number (P/N) 3108295-1, and the HSP, P/N 3101741-2, or since the last overhaul of the diaphragm matched housing set, whichever occurs first.

             Requirement 3(b)(ii):  Whenever certain gearbox parts, identified in Paragraph 2.B. of ASB TPE331-A72-2087, are removed from the engine following compliance with Requirement 3(a) or 3(b)(i) of this Directive.

             Requirement 3(b)(iii):  Whenever the engine is removed from the aircraft and disassembled to the extent that the diaphragm module is accessed after 500 hours TIS following compliance with Requirement 3(a) or 3(b)(i) of this Directive.

             TPE331-12B Engines

             Requirement 4(a):  Unless previously accomplished; At the next engine overhaul or when the bull gear first requires replacement, whichever occurs first, after the effective date of this Directive.
             Requirement 4(b)(i):  At intervals not to exceed 3,100 hours TIS since the last replacement of the bull gear, P/N 3108296-1, and the HSP, P/N 3101741-4, or since the last overhaul of the diaphragm matched housing set, whichever occurs first.

             Requirement 4(b)(ii):  Whenever certain gearbox parts, identified in Paragraph 2.B. of ASB TPE331-A72-2092, are removed from the engine following compliance with Requirement 4(a) or 4(b)(i) of this Directive.

             Requirement 4(b)(iii):  Whenever the engine is removed from the aircraft and disassembled to the extent that the diaphragm module is accessed after 500 hours TIS following compliance with Requirement 4(a) or 4(b)(i) of this Directive.

             TPE331-11U Engines With Bull Gear P/N 3107161-1

             Requirement 5(a):  Unless previously accomplished; At the next hot section inspection, gearbox inspection, engine overhaul, or when the gearbox diaphragm module is out of the engine, whichever occurs first after the effective date of this Directive.

             Requirement 5(b)(i):  At intervals not to exceed 9,000 hours time-in-service (TIS) since the last replacement of the bull gear, P/N 3108295-1, and the HSP, P/N 3101741-2, or since the last overhaul of the diaphragm matched housing set, whichever occurs first.

             Requirement 5(b)(ii):  Whenever certain gearbox parts, identified in Paragraph 2.B. of ASB TPE331-A72-2088, are removed from the engine following compliance with Requirement 5(a) or 5(b)(i) of this Directive.

             Requirement 5(b)(iii):  Whenever the engine is removed from the aircraft and disassembled to the extent that the diaphragm module is accessed after 500 hours TIS following compliance with Requirement 5(a) or 5(b)(i) of this Directive.

             All Other TPE331-11U Engines Without Bull Gear P/N 3107161-1

             Requirement 6(a):  Unless previously accomplished; At the next gearbox inspection, engine overhaul, or when the gearbox diaphragm module is out of the engine, whichever occurs first after the effective date of this Directive.

             Requirement 6(a)(i):  At intervals not to exceed 9,000 hours TIS since the