-5 Non-Stabilized Magnetic Compass (Standby)

Non-Stabilized Magnetic Compass (Standby)

1. 
   Any combination of two gyro OR INS (IRU) stabilized compass systems are operative, and
   
2. 
   Airplane is operated with dual independent navigation capability and under positive radar control by ATC, on the enroute portion of the flight.
   

1. 
   Confirm any combination of three gyro or INS (IRU) stabilized compass systems are operative,
   OR
   
2. 
   Confirm any combination of two gyro or INS (IRU) stabilized compass systems are operative, and
   
3. 
   Airplane is operated with dual independent navigation systems, and
   
4. 
   Airplane is operated under positive enroute ATC RADAR control.
   

VMO/MMO Aural Warnings

1. 
   Both Mach/Airspeed indicators at both pilot positions are operative,
   
2. 
   If installed, Ventral Tank is either empty or EMPTY/FULL indicator is operative, and
   
3. 
   VMO/MMO Aircraft Flight Manual (AFM) limitations are observed.
   

1. 
   For air data computer driven indicators, confirm that both left and right Mach/Airspeed indicators are not flagged, and
   
2. 
   For aircraft equipped with Ventral Fuel Tank, tank must either not be filled or EMPTY/ FULL indicator must be verified operative.
   
3. 
   Observe AFM VMO/MMO limitations.
   

Altitude Alerting System

1. 
   Autopilot with altitude capture and altitude hold is operative,
   
2. 
   Enroute operations do not require its use, and
   
3. 
   Repairs are made within three flight days.
   

RVSM is not authorized.

1. 
   Autopilot with altitude capture and altitude hold is operative.
   
2. 
   Flight planning must avoid use of RVSM airspace.
   

Visual alert is operative, and

Autopilot with altitude capture and hold is operative.

Aural alert is operative, and

Altimeter Vibrators

1. 
   Associated air data computer is operative, and
   

2. 
   VMC exists at departure and arrival airports.