AIRPLANE
OPERATIONS
MANUAL
SUPPLEMENTARY
PROCEDURES
NAVIGATION
REVISION 40
1-02-80
Page
21
Code
02
AOM-145/1114
CONTINENTAL ENROUTE (B-RNAV/RNAV 5/RNAV 1/RNAV 2)
Cleard Flight Plan ......................................................... CHECK
Flight crew should cross-check the cleared flight plan by comparing
charts or other applicable resources with the navigation system
textual display and the airplane map display, if applicable. If
required, the exclusion of specific NAVAIDs should be confirmed.
Flight Progress.............................................................. MONITOR
During the flight, and where feasible, monitore navigational
reasonableness by cross-check with conventional NAVAIDs using
the primary displays in conjunction with the RNAV control and
display unit (CDU).
REMOTE ENROUTE (RNAV 10)
Dual FMS and GPS ..................................................... CHECK
AVAILABILITY
At least two FMS and two GPS must be operational at the oceanic
entry point. If this is not the case, then the pilot should consider an
alternate route which does not require that particular equipment or
regard to make a diversion for repairs.
Before entering oceanic airspace:
Airplane Position .......................................................... CHECK
The position of the airplane must be checked as accurately as
possible by using external NAVAIDs. This may require DME/DME
and/or VOR checks to determine navigation system errors through
displayed and actual positions.
NOTE: Operator in-flight operating drills must include mandatory
cross-checking procedures to identify navigation errors in
sufficient time to prevent airplane from inadvertent deviation
from ATC-cleared routes.
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