The transition to CLB takes place when a vertical mode
(VNAV,
FLC, ALT or VS buttons) is engaged. Capturing an
altitude will also cause the auto EPR rating to transition
to CLB.
Simply engaging the autopilot in pitch
hold will
not cause a transition to CLB.
The auto EPR rating goes to
GA because the FGC TO mode is cancelled. The auto EPR
rating is set to CLB as long as
the flight phase is climb,
even during level-offs, prior to TOC.
When the flight phase is cruise, the auto EPR rating is CRZ,
except for cruise-climbs then the phase becomes CLB. When
the flight phase is descent,
the auto EPR rating stays with
CRZ, except
when the gear comes down for approach. The auto
EPR then changes to GA.
Whenever the FGC GA
mode is selected, the auto EPR rating
will go to GA.
If an engine failure occurs, the auto EPR
rating goes
to MCT, provided the rating was not TO or GA
when the engine failure occurred. Upon landing, the auto
EPR rating returns to TO.
TOD
CRUISE
CRUISE
TOD
MORETHAN1OONM
AD-31733@
Descent to Cruise Phase When More
Than 100 NM from TOD
Figure 270.6
22-14-00
Page 298.214.3
Apr 15/93
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