CNI System Malfunctions
T-45C TS, ADV & IUT ENG-22
c. INS legend automatically selects (boxes)
d. AV BIT advisory appears on all MFDs in lower
right-hand corner
e. BIT page shows DEGD for GINA
NOTE: GINA will still provide accurate aircraft
attitude information for the pilot, providing INS
mode is functioning properly.
2. INS failure
a. HYBD and INS legends go blank
NOTE: GPS legend may also go blank. Selecting
(boxing) GPS — if able — allows GPS derived
LAT/LONG to be read on the Aircraft Data
Sublevel page.
b. AV BIT advisory appears on all MFDs in lower
right-hand corner
c. BIT page shows DEGD for GINA
d. ATTITUDE advisory window appears, first
e. POSITION advisory replaces ATTITUDE advisory
after (if) attitude is resolved
NOTE: All aircraft attitude information is lost with
a failed INS. GPS — alone — cannot provide
any attitude data.
f. GINA may automatically realign and completely
recover; GINA may not
(1) Cross-check Standby instruments
NOTE: If possible, remain VMC until attitude
and position problems are safely resolved.
(2) Do not maneuver aircraft during coarse-
alignment phase (attitude), if system
automatically (or manually) enters a realignment
process
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