B737 Undifferentiated or Other Model
Situational Awareness
Deviation / Discrepancy - Procedural Other / Unknown
General None Reported / Taken
Chart Or Publication; Environment - Non Weather Related; Manuals; Procedure
Prior to reaching position DB located on Airway NCA20 enroute to ANC both the PF and I attempted to develop a strategy for engine out or loss of cabin PSI for last hour of flight in region(s) with grid MORA's of FL220 and lower but predominately above 10;000 feet. A complete dearth of information was found in the Operation Manual and in charts. We improvised with strategies including the decision point for a diversion and checking of weather at suitable airports. However; NO information or guidance is currently found in the Operations Manual nor are there charts for some airfields in the vicinity of DB before the high terrain. Further the LO and HI charts have limited information other than the presentation of high terrain in grid MORA's. The 737 now operates routinely on such routes and unlike widebody aircraft; does not have any escape route guidance of warnings.
A pilot flying on Canadian Airway NCA20 noted that the MORA's were 22;000 feet and lower; but his B737 did not have escape route guidance in the event of pressurization loss or other events requiring a descent.