Table 2–1. Master Failure Symptom Index (cont)

TM 1–1520–238–T–2 Change 5 2–56.1/(2–56.2 blank) Table 2–1. Master Failure Symptom Index (cont) Failure Symptom MOC Reference DIR RIPL DOES NOT APPEAR ON HOD (CPG MSL PANEL: MODE SWITCH SET TO RIPL AND AND LOAL SWITCH SET TO DIR) (CPG FCP: MSL CHAN SEL SWITCH SET TO LWR) TM 9–1427–475–20 HME SYSTEM DISPLAY SYMBOLOGY APPEARS ON HOD TM 9–1230–476–20–2 MULTIPLEX SUBSYSTEM DISPLAY SYMBOLOGY DOES NOT APPEAR ON HOD (CPG FCP: MUX SWITCH SET TO PRI) (PRI BUS DETACHED) TM 9–1230–476–20–2 MULTIPLEX SUBSYSTEM DISPLAY SYMBOLOGY DOES NOT APPEAR ON HOD (CPG FCP: MUX SWITCH SET TO PRI) (SEC BUS DETACHED) TM 9–1230–476–20–2 MULTIPLEX SUBSYSTEM DIST DATA IS NOT 25.0 KM (+0.1 KM OR BRG DATA IS NOT 350 DEG (CDU: VAB NEXT TO DISPLAYED WORDS FLY TO PRESSED AND NUMBER 1 ENTERED ON SCRATCH PAD) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–137 DL56789012 IS NOT DISPLAYED ON LEFT AND RIGHT DISPLAYS (CPG DPLR NAV PANEL: DISPLAY SWITCH SET TO DEST/TGT, DEST DISP THUMBWHEEL SET TO P AND KEYBOARD KEYS ACTIONED) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 DNS DOES NOT APPEAR ON SCRATCH PAD (CDU: LETTERS DNS KEYED INTO KEYBOARD) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–137 DNS NO–GO MESSAGE DISPLAYED ON CDU AND SIGNAL DATA CONV–COMP NO–GO LH AFT CATWALK FD/LS MESSAGE TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–137 (ADD) DNS SDCC LT BUS NO–GO LH AFT CATWALK (ADD) TM 9–1230–476–20–2 MULTIPLEX SUBSYSTEM (ADD) DNS SDCC RT BUS NO–GO LH AFT CATWALK (ADD) TM 9–1230–476–20–2 MULTIPLEX SUBSYSTEM (ADD)