We have said it before and it bears repeating: asset transition is inherently time- and effort-intensive. In a previous article, we discussed how inadequate redelivery preparation on the outgoing lessee’s side can lead to delays and significant cost exposure. This time, we shift the perspective to the incoming lessee.

Once the aircraft is received, variations in AMPs, regulatory requirements, and operational practices mean that certain records must be carefully reviewed to ensure proper maintenance task bridging and alignment before the aircraft is inducted into service.

LDND

One of the most common areas requiring bridging is LDND. LDND values are not universal; they are shaped by differences in AMP structures, local authority requirements, and internal operational practices. In practice, this means that certain tasks mandated by local regulators may need to be completed before or during a change of registration. It also means that task control structures often differ, as operators frequently apply their own internal numbering systems to MPD tasks.

Another example is that in some cases, the previous operator may have applied reduced task intervals to suit their operational strategy. These shortened thresholds must be carefully reviewed and, where required, realigned to the baseline MPD rather than carried forward without validation.

AD Fulfilment and AMOC Considerations

Airworthiness Directive (AD) compliance is another area that requires close attention. While most authorities align closely with FAA and EASA requirements, differences still exist in adoption, interpretation, and compliance timelines.

AMOCs are particularly critical. An AMOC approved for one operator or authority is not automatically transferable to another. During transition, the incoming operator must either adopt the original method and timeline or seek approval for a new AMOC. This cannot be assumed; it must be verified.

Concession Statements and Deferred Item Lists

Incomplete concession records and deferred item lists remain a common finding during transition and must be taken note of as part of the redelivery documentation package. These include OEM-approved concessions and outstanding items carried over from shop visits or previous operations.

For lessors and incoming lessees, these documents define which deviations were formally accepted and which obligations remain open. Any ambiguity directly affects maintenance responsibility and cost exposure, and often results in additional inspections, corrective actions, or unplanned findings if not resolved early.