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TM 55-1510-218-MTF
PROCEDURE
TROUBLEOOTING
REFERENCE
g. Cabin pressurization switch -
TEST (hold).
g. Left bleed air control valve
switch - OPEN.
h. Cabin climb indicator - Check
for descent indication within
10 to 15 seconds, then release
test switch.
k. Left and right bleed air valve
switches - OPEN.
l. Cabin altitude indicator - Set
to planned cruise altitude plus
500 feet (if this setting does not
result in a CABIN ALT indica-
tion of at Ieast 500 feet over
takeoff field pressure altitude.
adjust as required).
2-41
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