Cessna 172SPHUSR05 Pilot Operating Handbook page 373

C ESSNA
MODEL 1 72S
C L O C K O P ERATIONS
The lower portion of the LCD window is dedicated to clock and
timing operations. Pushing the SEL ECT b utton will sequence the
window from u n iversal time (UT) to local time (L T) to flight time (FT)
to elapsed time ( ET) , and back again to u n iversal time. Pushing the
CONTROL button allows for timing functions within the fou r
S EL ECT men us. Setting procedures are a s follows:
Use the S EL ECT button to select universal time (UT) .
Simultaneously press both the S EL ECT and the CONTROL buttons
to enter the set mode. The tens of hours d igit will start flashing. The
CONTROL button has full control of the flashing digit, and each
button push increments the digit. Once the tens of hours is set the
SEL ECT b utton selects the next digit to be set. After the last d igit
has been selected and set with the CONTROL b utton, a final push
of the S EL ECT button exits the set mode. The l ighted annunciator
wi" resume its normal flashing, indicating the clock is running in
universal time mode.
Use the S EL ECT button to select local time (L T) . Simultaneously
press both the S EL ECT and the CONTROL buttons to enter the set
mode. The tens of hours digit will start flashing. The set op�ration is
the same as for UT, except that minutes are already synchronized
with the UT clock and cannot be set in local time.
Use the S EL ECT button to select flight time ( FT). Hold the
CONTROL button down for
the display. Flight tim e will be zeroed upon release of the
CONTROL b utton.
July
8/98
S UP PL E M ENT 9
S ETTING U N IVERSAL TI M E
SETTING LOCAL TI M E
FL I GHT TI M E RESET
seconds , or until 99:59 appears on
3
S ECTION 9 SU PPL EM ENTS
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FAA APPROVED
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S9-5