T-45A UJPT, E2-C2, ADV, & IUT Eng-02
Engine
ECA total failure will, in
most instances, result
in a no trim condition,
increasing the rpm and
EGT. The EGT and rpm
must be controlled
carefully within limits by
throttle manipulation.
NOTE: If an ECA lane
failure occurs, a
momentary thrust
fluctuation may be
experienced. With a dual
lane failure, engine EGT,
fuel flow, and rpm should
be monitored and the
throttle carefully
controlled. Manual fuel
control use should be
considered only if a dual
lane failure is indicated
and engine instability
exists; for instance, stalls
or surges.
(b) During normal operation, if
either EGT or N1 shaft speed
exceeds operating limits, ECA
signals the FCU, reducing fuel
flow
(7) SIFCU: meters fuel to spray
Overlay 10
nozzles during start cycle to ensure
proper initial acceleration; operates
only during engine start cycle
(hydromechanical); differential
pressure between LP and HP
pump
SIFCU
(8-03) Original
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