TM 55-1520-240-23-T Change 24     16-205   16-5.3  AN/ALE-47 COUNTERMEASURES DISPENSER SYSTEM OPERATIONAL CHECK (Continued)      16-5.3 PFL Message MFL Message Failure Effect On System AUTO   FAIL   GO   MAN PROG  AV  COMM  FAIL AV Bus Operational Communications Failure Loss of AV Interface            * N/A CDU   FAIL   A1   01 Power Fail Detection Loss of CDU N/A CDU   FAIL   A1   02 Watch Dog Timer Loss of CDU CDU   FAIL   GO   BYP CDU   FAIL   A1   03 ROM Checksum Loss of CDU CDU   FAIL   GO   BYP CDU   FAIL   A1   04 CPU Failure Loss of CDU N/A CDU   FAIL   A1 SRU 1 (CPU) Loss of CDU MAN   DISP  1-4   FAIL CDU   FAIL   A2   01 Manual Dispense Input Discrete Loss of Manual Dispense Input to CDU SEMI   FAIL CDU   FAIL   A2   02 Semi-Automatic Dispense Input Discrete Loss of Semi Auto Dispense Input to CDU CDU   BUMP   FAIL CDU   FAIL   A2   03 Manual 5 Dispense Input Discrete Loss of Manual 5 Dispense Input to CDU CDU   FAIL   GO   BYP CDU   FAIL   A2   04 Weight On Wheels Discrete Input Loss of WOW Input to   CDU                                    * CDU FAIL MAN-6 CDU   FAIL   A2   05 Manual 6 Discrete Input Loss of Manual 6 Dispense Input to CDU N/A CDU   FAIL   A2   06 Cockpit Data Link Loss of CDU N/A CDU   FAIL   A2 SRU 2 (Discrete I/O) Loss of CDU DISPLAY   DEGRADED CDU   FAIL   A3   01 Display Loss of CDU Display CDU   FAIL   GO   BYP CDU   FAIL   A3   02 External RAM Loss of CDU CH   ENAB   SW   FAIL CDU   FAIL   A3   03 Chaff Inhibit Switch Loss of Chaff Inhibit FL    ENAB   SW   FAIL CDU   FAIL   A3   04 Flare Inhibit Switch Loss of Flare Inhibit 01    ENAB   SW   FAIL CDU   FAIL   A3   05 Other 1 Inhibit Switch Loss of Other 1 Inhibit 02    ENAB   SW   FAIL CDU   FAIL   A3   06 Other 2 Inhibit Switch Loss of Other 2 Inhibit RWR   ENAB   SW   FAIL CDU   FAIL   A3   07 RWR Inhibit Switch Loss of RWR Inhibit JMR   ENAB   SW   FAIL CDU   FAIL   A3   08 Jammer Inhibit Switch Loss of Jammer Inhibit MWS   ENAB   SW   FAIL CDU   FAIL   A3   09 MWS Inhibit Switch Loss of MWS Inhibit REM   BYP   FAIL   CDU   FAIL   A3   10 Remote BYP Loss of Remote BYP          * REM   JET   FAIL CDU   FAIL   A3   11 Remote Jettison Loss of Remote Jettison     * REM   PROG   FAIL CDU   FAIL   A3   12 Remote Program Loss of Remote Program    * REM   MODE   FAIL CDU   FAIL   A3   13 Remote Mode Loss of Remote Mode         * JETT   FAIL   CDU   FAIL   A3   14 Jettison Switch Loss of Jettison Switch MAN   FAIL   CHG   PROG CDU   FAIL   A3   15 Program Switch Loss of Program Switch N/A CDU   FAIL   A3   16 Mode Switch Loss of CDU CDU   FAIL   REM CDU   FAIL   A3   17 Remote Control Loss of Remote Control Input                                    * CDU   FAIL   GO   BYP CDU   FAIL   A3   18 Switch buffer Loss of CDU N/A CDU   FAIL   A3 SRU 3 (Front Panel) Loss of CDU SEQ   ##   INV   DEG SEQ   ##   MAGA   FAIL Magazine A MAG A Functional Fault (Misfire/Polling) SEQ   ##   INV   DEG SEQ   ##   MAGB   FAIL Magazine B MAG B Functional Fault (Misfire/Polling)                   * SEQ   ##   BYP  DEG SEQ   ##   A1   01 BYP Flare Dispense BYP Flare Dispense Loss SEQ   ##   BYP  DEG SEQ   ##   A1   02 BYP Other 1 Dispense BYP Other 1 Dispense Loss                                    * SEQ   ##   BYP   DEG SEQ   ##   A1   03 BYP Other 2 Dispense BYP Other 2 Dispense Loss                                    * SEQ   ##   INV   DEG SEQ   ##   A1   04 Magazine A ID Register Loss of Magazine PFL Message MFL Message Failure Effect On System SEQ   ##   INV   DEG SEQ   ##   A1   05 Magazine B ID Register Loss of Magazine SEQ   ##   BYP  DEG SEQ   ##   A1   06 Other 1 Cascade/Magazine Sense B BYP Other 1 Cascade/MAG B Test Fail                           * SEQ   ##   BYP  DEG SEQ   ##   A1   07 Other 2 Cascade BYP Other 2 Cascade Test Failure                                 * SEQ   ##   BYP  DEG SEQ   ##   A1   08 Flare Cascade Relay Closed Flare BYP Cascade Failure SEQ   ##   BYP  DEG SEQ   ##   A1   09 Flare Cascade Relay Open Flare BYP Cascade Failure SEQ   ##   BYP  DEG SEQ   ##   A1   10 Chaff Cascade Relay Closed     Chaff BYP Cascade Failure SEQ   ##   BYP  DEG SEQ   ##   A1   11 Chaff Cascade Relay Open Chaff BYP Cascade Failure SEQ   ##   BYP  DEG SEQ   ##   A1   12 Chaff Dispense BYP Chaff Dispense Loss SEQ   ##   INV   DEG SEQ   ##   A1   13 EEPROM Write Sequencer MDF Loss SEQ   ##   BYP  DEG SEQ   ##   A1   15 Other 2 Relay Closed Other 2 Cascade Failure     * SEQ   ##   BYP  DEG SEQ   ##   A1   16 Other 2 Relay Open Other 2 Cascade Failure     * SEQ   ##   BYP DEG SEQ   ##   A1   17 Other 1 Relay Closed Other 1 Cascade Failure     * SEQ   ##   BYP DEG SEQ   ##   A1   18 Other 1 Relay Open Other 1 Cascade Failure     * SEQ   ##   OP   FAIL SEQ   ##   A1   21 High Squib Power Unable to Sense High Squib Power SEQ   ##   INV   DEG SEQ   ##   A1   22 Squib Power Present Loss of Sequencer SEQ   ##   INV   DEG SEQ   ##   A1   23 Squib Power High/Low Loss of Sequencer SEQ   ##   INV   DEG SEQ   ##   A1   24 Fire Current Status Loss of Sequencer SEQ   ##   BYP    FAIL SEQ   ##   A1   25 BYP Discrete Loss of BYP Function SEQ   ##   JETT   FAIL SEQ   ##   A1   26 Jettison Discrete Loss of BYP Jettison SEQ   ##   INV   DEG SEQ   ##   A1   27 MAG Present Loss of MAG A Inventory SEQ   ##   INV   DEG SEQ   ##   A1   28 MAG Present Loss of MAG B Inventory    * SEQ   ##   FAIL SEQ   ##   A1 Control I/O (Signal Conditioner) Loss of Sequencer SEQ   ##   INV   DEG SEQ   ##   A2   08 Fire Mux D Sequencer Loss of Inventory/Dispenser SEQ   ##   INV   DEG SEQ   ##   A2   09 Fire Mux C Sequencer Loss of Inventory/Dispenser SEQ   ##   INV   DEG SEQ   ##   A2   10 Fire Mux B Sequencer Loss of Inventory/Dispenser SEQ   ##   INV   DEG SEQ   ##   A2   11 Fire Mux A Sequencer Loss of Inventory/Dispenser EQ   ##   FAIL SEQ   ##   A2 MUX Loss of Inventory SEQ   ##   INV   DEG SEQ   ##   A3   01 Fire Source D Loss of Inventory SEQ   ##   INV   DEG SEQ   ##   A3   02 Fire Source C Loss of Inventory SEQ   ##   INV   DEG SEQ   ##   A3   03 Fire Source B Loss of Inventory SEQ   ##   INV   DEG SEQ   ##   A3   04 Fire Source A Loss of Inventory SEQ   ##   OP    FAIL SEQ   ##   A3   05 Fire Source A Inhibit Sequencer Safety Feature Fail SEQ   ##   INV   DEG SEQ   ##   A3   06 Fire Source A Low Fire Loss of Inventory SEQ   ##   INV   DEG SEQ   ##   A3   07 Poll High/Low Loss of MAG B Inventory    * SEQ   ##   OP  FAIL SEQ   ##   A3   08 Fire Source D Inhibit Sequencer Safety Feature Fail SEQ   ##   OP   FAIL SEQ   ##   A3   09 Fire Source D Low Fire Loss of Inventory SEQ   ##   OP   FAIL SEQ   ##   A3   10 Fire Source C Inhibit Sequencer Safety Feature Fail GO TO NEXT PAGE