Document ID: chunk:federal_register_of_legislation:F2022L00917:reg:3:p5
Version: federal_register_of_legislation:F2022L00917
Segment Type: reg
Provision Reference: reg 3 (pt 5/5)
Character Range: 12735–14618

replaced with the current washer configuration and installed in accordance with JEM0001.
Note   When the maintenance schedule, for the aircraft's engine, in JEM0002 is used, JSL008 will also become a recurring inspection requirement.
      4 The aircraft's cylinder heads are inspected in accordance with JSL014, and any requisite corrective action required by the service letter is completed.
Note   When the maintenance schedule, for the aircraft's engine, in JEM0002 is used, JSL014 requires further inspections in certain circumstances.
      5 All the aircraft engine's through bolts are replaced in accordance with JSB031, with any replacement parts being the current engine through bolt, nut and washer configuration, installed in accordance with JEM0001:
(a) for an engine with 3/8" through bolts, within the Group A engine grouping, which has engaged in a relevant operation:
           (i) before 500 hours Hobbs time since the last engine through bolt replacement; or
           (ii) as soon as practicable after reaching 500 hours Hobbs time since the last engine through bolt replacement, but before another flight; or
(b) for an engine with 3/8" through bolts, within the Group A engine grouping, which has not engaged in a relevant operation — at, or before, 1 000 hours Hobbs time since the last engine through bolt replacement; or
(c) for any other engine within an engine grouping — at, or before, 1 000 hours Hobbs time since the last engine through bolt replacement.
Note 1   Paragraph 5 (c) applies whether or not the engine has engaged in a relevant operation.
Note 2   JSL010 explains "Hobbs time" is the correct method of recording engine hours. It also explains what "Hobbs time" means. If that method of recording engine hours has not been used, an adjustment to the engine hours will need to be made, which may bring forward other maintenance requirements.