Introducing Aviation - Instructions for Continued Airworthiness (ICAW)

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SofemaOnline Considers ICAW in relationship to Aircraft Maintenance Organisation (AMO) and Continuing Airworthiness Maintenance Organisation (CAMO) Technical Libraries

Introduction - Instructions for continuing airworthiness (ICAW)

For an aircraft or aeronautical product, means

» Written instructions, as in force from time to time that specifies requirements, procedures and standards for the continuing airworthiness of the aircraft or aeronautical product;


» ICAW is issued by the TC or STC holder, the holder of a modification/repair design approval or the manufacturer of the aircraft or aeronautical product.

The Aircraft Maintenance Manual (AMM) is a primary document for transmitting ICAW to maintainers and operators.

» Users should refer to it for all recommended and required maintenance.

The role of Supplements

» When it is necessary to amend or provide additional guidance then an ICAW supplement can be issued as an interim solution (Temporary Revision)
» Allows controlled information to be formally distributed where the AMM revision schedule does not align with the need for timely distribution of the data.

Note Supplements typically do not contain operation or flight data. (see separate Aircraft Flight Manual (AFM) and/or AFM Supplements.

For Weight & Balance - Refer to

» The applicable Weight and Balance Manual and/or the AMM, Chapter 8, Leveling and Weighing for more data, as applicable to your model.

Other Standalone Information - can be issued through the following:

» FAA-approved Chapter 4 – Airworthiness Limitations
» Standalone Airworthiness Limitations Manuals (ALM),
» Electrical Wiring Interconnect Systems (EWIS) Manual changes have their own approval/revision process.
» Operation Manual-type data is also not included in an ICA Supplement.

How to check for ICAW Supplements

» Supplements should be referenced by ATA on the Temporary Revision Control Page
» For Electronic Manuals – should be additionally referenced from the selected ATA

Note - The important aspect is to ensure the Supplements (Temporary Revisions (TR)) are identified when needed

What Information is issued by supplements?

Essentially any information which is found in primary manuals can be issued as a Supplement, for example :

» Access updates,
» Servicing instructions,
» Removal/installation changes,
» Post-maintenance checks,
» Updates to scheduled inspection programs;  
» New, changed, or revised inspection criteria; and/or intervals.
» Wiring Diagram Manual (WDM)
» Parts data

Note Aeroplanes that are considered as Non-Complex are typically maintenance controlled through the AMM Chap 5, whereas large aircraft have a Maintenance Planning Document (MPD)

Are Supplements always incorporated into the manuals?

Most Supplements will be incorporated into the relevant manual at the next revisions. (Validate through reference to the TR/ ICA Supplement List)

Next Steps

Please see www.sassofia.com or www.sofemaonline.com for regulatory compliant and vocational training courses – please email team@sassofia.com

The following course is available as a classroom or webinar

https://sassofia.com/course/aircraft-documentation-management-and-technical-librarian-training-course-1-day/

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