Summary
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Model A319, A320, and A321 series airplanes. This proposed AD would require revising the Airplane Flight Manual (AFM) to prohibit operators from performing CAT 2 or CAT 3 automatic landings or roll-outs at certain airports. This proposed AD also provides for an optional terminating action for the AFM revision. This proposed AD is prompted by data showing that the magnetic variation table installed in the Honeywell Inertial Reference System (IRS) is obsolete at certain airports. We are proposing this AD to prevent the airplane from departing the runway during a CAT 2 or CAT 3 automatic landing or roll-out, due to magnetic and IRS deviations.