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B777-200 captain points out that south american rtes have terrain higher than 10000 ft. This is the altitude that the company flight manual indicates can be used for low altitude rtes.
| Attributes | |
| ACN | 542221 |
| Time | |
| Date | 200203 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : zzzz.artcc |
| State Reference | FO |
| Altitude | msl single value : 10000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 542221 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | controller : local |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Company |
| Primary Problem | Company |
Narrative:
First officer pointed out that terrain on route of flight abc-eze-mia is well above 10000 ft in areas outside escape rtes. I think the common assumption is that one is safe to 10000 ft outside escape route areas. Escape route on page XXXX says it's ok to descend to 10000 ft once established on low altitude airway. Terrain appears to be much higher than 10000 ft directly under low altitude airway.
Original NASA ASRS Text
Title: B777-200 CAPT POINTS OUT THAT SOUTH AMERICAN RTES HAVE TERRAIN HIGHER THAN 10000 FT. THIS IS THE ALT THAT THE COMPANY FLT MANUAL INDICATES CAN BE USED FOR LOW ALT RTES.
Narrative: FO POINTED OUT THAT TERRAIN ON RTE OF FLT ABC-EZE-MIA IS WELL ABOVE 10000 FT IN AREAS OUTSIDE ESCAPE RTES. I THINK THE COMMON ASSUMPTION IS THAT ONE IS SAFE TO 10000 FT OUTSIDE ESCAPE RTE AREAS. ESCAPE RTE ON PAGE XXXX SAYS IT'S OK TO DSND TO 10000 FT ONCE ESTABLISHED ON LOW ALT AIRWAY. TERRAIN APPEARS TO BE MUCH HIGHER THAN 10000 FT DIRECTLY UNDER LOW ALT AIRWAY.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.