Table 3-5. Action Codes and Recommended Actions
Shut down INS.
Watch for degradation (NAV), During ground operation, downmode to STBY and restart
INS may be used for navigation. One or more analog outputs are not functioning properly. Check
26 VAC circuit breakers, HSI and autopilot.
Downmode to STBY and restart alignment (ground operation only).
Correct problem in interfacing system (could be INS). Will not seriously affect performance.