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Page Title:
Pressurization and Oxygen System. |
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 TM 55-1510-218-MTF
* 10. Slowly retard the left power lever and record the
minimum N1 speed that the left engine must be
operated at to maintain the cabin pressure dif-
ferential at 6.01. N1 should not exceed 85%.
and the minimum desireable N1 is 80%.
11. Right bleed air valve switch - OPEN.
12. Cabin altitude controller - Set to 10,000 feet
pressure altitude.
13. Cabin pressurization rate knob - Set to maxi-
mum.
* 14. Cabin rate of climb indicator - Read and record.
Cabin rate of descent should be between 1500
and 2500 feet per minute.
15. Cabin pressurization rate knob - Set to mid-
range.
* 16. Cabin rate of climb indicator - Read and record
cabin rate of descent. Cabin rate of descent
should be between 350 and 650 feet per minute.
17. Cabin pressurization rate knob - Set to mini-
mum.
* 18. Cabin rate of climb indicator - Read and record
cabin rate of descent. Cabin rate of descent
should be between 50 and 300 feet per minute.
19. Cabin altitude controller - Set.
* 20. Cabin rate of climb indicator - Read and record
cabin rate of descent. Cabin rate of descent
should be between 50 and 350 feet per minute.
21. Cabin pressurization rate knob - Set to maxi-
mum.
* 22. Cabin rate of climb indicator - Read and record
cabin rate of descent. Cabin rate of descent
should be between 1500 and 2500 feet per min-
ute.
23. Cabin pressurization rate knob - Set to mid-
range.
* 24. Cabin rate of climb indicator - Read and record
cabin rate of descent. Cabin rate of descent
should be between 350 and 650 feet per minute.
4-2
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