EASA SIB 2009-25
EMBRAER EMB-135 and EMB-145 Series Aeroplanes — WindowsTM version of Personal Computer Memory Access (PCMA) Software on the AH-800 Attitude & Heading Reference System (AHRS)
EASA Safety Information Bulletin SIB No. 2009-25 is an informational bulletin concerning EMBRAER EMB-135 and EMB-145 series aeroplanes equipped with the AH-800 Attitude & Heading Reference System (AHRS). It announces the availability of a new WindowsTM version of the Personal Computer Memory Access (PCMA) software used for ground support and configuration of the AH-800 AHRS. The bulletin highlights the risk of incorrect AHRS configuration potentially causing an inverted attitude display, which could lead to loss of control.