Aircraft Reliability – Analysis and Considerations

As we operate our aircraft, we need to maintain oversight of the reliability of the aircraft – the reliability can indicate areas where we might want to improve such as reducing intervals between tasks being carried out or not problems that occur regularly.

Once we have decided the sources for data, we will use in the aircraft reliability programme and the considerations detailing what we will and will not include regarding maintenance actions taken – then comes the analysis of the data to allow us to create some information that has meaning or value to us.

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Aircraft Lease review – Carry forward items / deferred defects

An aircraft is maintained in an airworthy condition by many conditions being met; one of these conditions is the scheduled maintenance being completed as per the approved maintenance plan for the aircraft.

What will happen is over the operation defects arise that are recorded in a logbook, and they must be actioned or assessed to continue operation. This could be a simple change of a part, such as tyre worn and the wheel is replaced, or maybe a valve fails, and it can be replaced.

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Airworthiness Review Certificate (ARC) review.

IALTA

Last post we looked at some of the considerations regarding what an Airworthiness Review
Certificate (ARC) is.

An ARC review is performed annually, and a “full” ARC takes place every third year.

It is also worth noting that after an initial ARC review you can apply to extend the certificate without further review from the CAMO for a period of one year but that this extension can only be applied for two times and then a full review must take place. An ARC extension can only happen if the aircraft is deemed to be in a “controlled environment”.

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What is an Airworthiness Review Certificate (ARC) review.

There are many different registrations that we see in aviation and each of these different registrations will have its own set of rules and requirements.

These are upheld and managed by a national aviation authority (NAA) who is responsible for a specific registration. Many NAA’s will share some common ground such as EASA member states, although the NAA for a specific country / registration can have additional requirements or specific timelines associated with a task.

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Aircraft Lease Transitions – Structural Repair File & Repair Categories

Aircraft Lease Transitions – Structural Repair File & Repair Categories

An aircraft will over its life have repairs carried out on it; these can be based on accidental damage or could be from environmental exposure for example.

As the damage is found it will be assessed and ultimately repaired – noting the repair may be a series of inspections and leaving the damage “as is”.

One important concern with the damage can the ICA (instructions for continued airworthiness) and this is where we consider a repair “category”.

The ICA are what we have to do in order to maintain the airworthiness of the aircraft and based on a
repair being carried out there may be reduced and or additional instructions that must be now
carried out.

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