d AirCell P12192-002 Corded Handset and replaced with P121357-002 cordless handset. Installed AirCell ATG 4000, Pan Number P13989 Air-To-Ground (ATG) Broadband Transceiver in the aft fuselage equipment bay at F.S. 724 with AirCell ACM. Part Number P14126 Configuration Module in the forward cabin RH equipment bay at F.