The IC recommends to issue the following safety recommendations:

BA2011-269-4P-1: It was established during the investigation that the Airport Operation Control Center (AOCC) assigned already occupied parking places for arriving aircraft.

Transportation Safety Bureau recommends Budapest Airport Plc to develop and operate appropriate procedures that provide up-to-date information for AOCC regarding occupancy status of parking aprons at their disposal.

Should the recommendation be accepted and implemented, it is expected that the handling and movements of aircraft will be troubled less frequently due to erroneous parking apron occupancy information.

BA2011-269-4P-2: It was established during the investigation that the Electronic Aeronautical Information Publication (eAIP) does not contain information related to aircraft movement in technical aprons.

Transportation Safety Bureau recommends Budapest Airport Plc to initiate appropriate amendments to the eAIP.
Should the recommendation be accepted and implemented, it is expected that the flight crews will be aware of the rules of aircraft movement in technical aprons prior to their arrival.

BA2011-269-4P-3: It was established during the investigation that the Advanced Surface Movement Guidance and Control System (A-SMGCS) operated by HungaroControl did not provide useful information for the investigation of the occurrence because radar and transponder information on certain areas – technical aprons in particular – is ’masked’ and the information is neither displayed or recorded.

Transportation Safety Bureau recommends HungaroControl to assess the possibility of recording the information provided by A-SMGCS before ’masking’ the areas that of no interest for HungaroControl.

Should the recommendation be accepted and implemented, it is expected that investigations of future occurrences in technical aprons and other ’masked’ areas can be assisted by recorded information.