400W Series Installation Manual Page 1-17190-00356-02 Rev. G1.7 Database Options and Updates1.7.1 Aviation DatabaseThe aviation database resides on a database card that is inserted in the left card slot on the unit frontpanel.The database is generated on periodic cycles from current Jeppesen data and converted to the format usedby the 400W Series unit products. The data conversion process is performed using software that isdeveloped and maintained under Garmin document control processes according to RTCA/DO-200A,Standards for Processing Aeronautical Data.The database can be updated by purchasing a database subscription from Jeppesen. The database updatesinclude either replacing or re-programming the database card and inserting the updated card in the leftcard slot on the unit front panel. Contact Jeppesen at 800-621-5377 or www.jeppesen.com for moreinformation and instructions.Contact Garmin for more information on databases available for the 400W Series unit.1.7.2 Terrain DatabaseThe Terrain database resides on a database card that is inserted in the right card slot on the unit frontpanel.The Terrain database, which serves the standard configured 400W Series unit providing Terrainfunctionality, is available for updating on periodic cycles and is available from Garmin. Terrain databaseupdates can be accomplished by replacing or reprogramming the database card and inserting the updatedcard in the right card slot on the unit front panel. The Terrain database can be downloaded via the internetand the card programmed using a USB programmer available from Garmin. Contact Garmin at 800-800-1020 or www.garmin.com for more information or instructions.1.8 Fault Detection and Exclusion (FDE)The 400W Series unit, when installed as defined in this manual, complies with the requirements for GPSprimary means navigation in oceanic and remote airspace when used in conjunction with the FDEPrediction program included with the GNS 400W/500W Series Trainer CD.The 400W Series unit includes fault detection and exclusion (FDE), which is active for all flight phasesincluding oceanic and remote operations, en route and terminal, and precision and non-precisionapproaches, and does not require any pilot interaction. The FDE consists of two parts:1. The fault detection function detects a satellite failure that can affect navigation; and2. The exclusion function is the capability to exclude one or more failed satellites and prevent themfrom affecting navigation.The FDE Prediction program, included with the GNS 400W/500W Series Trainer CD, is used to predictFDE availability. The FDE Prediction program must be used prior to oceanic or remote area flights for alloperators using the 400W Series unit as primary means navigation under FAR parts 91, 121, 125, and135.