Another less-known item is that the standby battery is a life-limited part
. It is supposed to be replaced every three years.
According to an analysis by FlightGlobal, over a 17-year period, life-limited parts
and engine overhaul costs have increased by 250 per cent and 150 per cent respectively, greatly exceeding the consumer price index.
A final rule to be published tomorrow calls on US operators of some 2,450 CF34 engines to replace the original 4-step air balance piston seals with 8-step seals at the next life-limited parts
replacement interval, a relatively inexpensive modification expected to take five hours per engine.
According to the Cincinnati Business Courier, included in the agreement are fixed-price life-limited parts
shop visits, turn-around time and performance guarantees as well as spare engine availability, on-wing support and remote diagnostics.
Pratt & Whitney earlier this year announced plans to design and certify 55 replacement parts for the CFM56, including 19 life-limited parts
. That overall number subsequently was reduced to 48 because there was no customer demand for LPC parts, Bromberg stated.
This amendment is prompted by findings that life-limited parts
, with forged and inaccurate records, have been introduced into the field and might be installed on the affected engines.
Technology features an engine-centric dashboard, life-limited parts
forecasting and utilization tracking.
Delta and Chromalloy will work together on development of PMA parts for the CFM56-5 and -7, including life-limited parts
, and Delta will serve as launch customer by incorporating certain parts into its -7 fleet.