The name is a bit of a give away in that you might guess it is when something was “Last Done” and when it is “Next Due”. Commonly abbreviated to LDND, it is especially important during a lease review.
Typically you may consider the following in a Last Done / Next Due review:
Components on the aircraft can be considered in two basic categories:
OCCM – On Condition / Condition Monitored Components
HT – Hard Time Components
There are many reasons why a component may be changed while the aircraft is leased, such as component failure, aircraft defect trouble shooting, or when the component reaches the end of its defined life.
When a typical aircraft turbine engine is delivered initially the engine will have certain documentation associated with it.
Reporting progress on the Redelivery / Delivery Check in the MRO to the Lessor/Owner/Bank is an essential part of the role as the technical consultant on-site.
It is a good idea to create a Critical Path Milestone Tracker that covers the major tasks of the MRO event so that you can easily measure progress.
