F E I-3 Electrically driven gyroscopic instrument  systems.......................................................................10-52 Electrical temperature measuring indication .............10-37 Electrical resistance thermometer ..........................10-37 Ratiometer electrical resistance thermometers.......10-38 Electric deice boots ....................................................15-23 Electric heating systems.............................................16-59 Electron control valves ................................................11-4 Electronic flight information systems........................10-69 Electronic centralized aircraft monitor  (ECAM)..................................................................10-71 Electronic flight instrument system (EFIS)............10-70 Electronic instruments ...............................................10-68 Electronic attitude director indicator (EADI).........10-68 Electronic horizontal situation indicators  (EHSI) ....................................................................10-69 Electronic oscillation .................................................11-24 Emergency backup systems .......................................12-51 Dump valve ............................................................12-51 Emergency extension sequence:.............................12-52 Gear emergency extension cable and handle .........12-51 Nitrogen bottles ......................................................12-51 Emergency brake systems..........................................13-56 Brake deboosters ....................................................13-58 Parking brake..........................................................13-58 Emergency extension systems ...................................13-22 Engine instruments.......................................................10-3 Evolution of hydraulic systems....................................12-7 Exhaust shroud heaters ..............................................16-59 Expander tube brakes.................................................13-51 Extinguishing agents and portable fire  extinguishers ..............................................................17-10 Detonation....................................................................14-5 Digital aircraft systems ..............................................11-29 Digital building blocks...............................................11-26 AND gate................................................................11-27 BUFFER gate .........................................................11-27 EXCLUSIVE OR gate............................................11-28 NAND gate.............................................................11-28 Negative logic gates ...............................................11-28 NOR gate................................................................11-28 NOT gate ................................................................11-26 OR gate...................................................................11-28 Digital electronics ......................................................11-26 Digital tuners and audio panels..................................11-30 Diodes ..........................................................................11-4 Direction indicating instruments................................10-44 Dry powders...............................................................17-10 Dual-disc brakes.........................................................13-46 Fenwal system..............................................................17-4 Field effect transistors (FET) .....................................11-17 Filling LOX systems ..................................................16-19 Filters .........................................................................12-13 Filter bypass valve..................................................12-14 Filter differential pressure indicators .....................12-15 Maintenance of filters.............................................12-14 Micron-type filters..................................................12-14 Fire detection/overheat systems...................................17-2 Fire detection system maintenance ............................17-18 Fire detection system troubleshooting .......................17-20 Fire extinguisher system maintenance .......................17-20 Agent containers.....................................................17-21 Container pressure check........................................17-20 Discharge cartridges ...............................................17-20 Fire hazards when fueling or defueling .....................14-58 Fire point......................................................................12-3 Fire prevention ...........................................................17-21 Fire zones .....................................................................17-8 Fixed and retractable landing gear...............................13-5 Flame detectors ............................................................17-9 Flash point....................................................................12-3 Flight director systems...............................................10-66 Flight instruments ........................................................10-3 Flight management system (FMS).............................10-74 Flow between interconnected tanks .............................14-3 Frost removal .............................................................15-25 Fuel filters ..................................................................14-33 Fuel heaters and ice prevention..................................14-36 Fuel identification ........................................................14-6 Fueling .......................................................................14-56 Fueling and defueling procedures..............................14-56 Fuel lines and fittings.................................................14-22 Fuel pumps.................................................................14-28 Centrifugal boost pumps ........................................14-29 Ejector pumps.........................................................14-29 Hand-operated fuel pumps .....................................14-28 Pulsating electric pumps.........................................14-30 Vane-type fuel pumps ............................................14-31 Fuel system components ............................................14-19 Fuel system independence ...........................................14-2 Fuel system indicators................................................14-37 Fuel flowmeters......................................................14-40 Fuel pressure gauges ..............................................14-44 Fuel quantity indicating systems ............................14-37 Fuel temperature gauges.........................................14-44 Pressure warning signal..........................................14-45 Fuel system lightning protection..................................14-2 Fuel system repair ......................................................14-46 Fuel system servicing.................................................14-50