AD/F100/75 Amdt 1 - High Pressure Compressor - CANCELLED

This document cancels a previous aviation safety rule about high pressure compressors in Fokker F100 aircraft.

In plain English:

• What it does: This officially cancels Airworthiness Directive (AD) F100/75 on 18 January 2007. An Airworthiness Directive is a legally binding safety instruction issued by the Civil Aviation Safety Authority (CASA) to fix unsafe conditions in aircraft.
• Why: The old rule required specific maintenance procedures for high pressure compressor vanes in Rolls-Royce Tay engines, but only when those engines were installed in Fokker F100 aircraft. A new directive (AD/TAY/18) now covers the same safety issue for these engines regardless of which aircraft type they are installed in, making the F100-specific rule redundant.
• Who it affects: Owners and operators of Fokker F100 aircraft with Rolls-Royce Tay 620/650 series engines. They must now follow the replacement directive AD/TAY/18 instead.