Japan Airlines

In paragraph (e)(2)(ii) in the "Compliance" section in the proposed AD, it is instructed that ====Quote==== (ii) For engines that do not have an ESV before the front turbine hub accumulates 9,370 CSN, remove the front turbine hub from service at the next ESV, or before the hub accumulates an additional 6,000 cycles-since-last high pressure turbine overhaul, whichever occurs first, but not to exceed 12,000 CSN. ====Unquote==== Japan Airlines (JAL) thinks that the terms "last high pressure turbine overhaul" in paragraph (e)(2)(ii) in the "Compliance" section should be clearly defined to comply with this proposed AD properly. JAL believes that "last FPI of the front turbine hub, P/N 53L601" satisfies the FAA's intention for this item, therefore, JAL would like to request FAA to change the terms from "last high pressure turbine overhaul" to "last FPI of the front turbine hub, P/N 53L601" in paragraph (e)(2)(ii) in the "Compliance" section.