T-45C TS, ADV & IUT ENG-12
Hydraulic Subsystems Malfunctions
VIII. Launch bar failure
Fig 6: Launch Bar
System Operation
A. Failure to extend
NOTE: This malfunction affects only catapult-assisted takeoff.
1. Indications: L BAR green (extended) indicator not illuminated after
EXTEND selected on deck
2. Verifications: ground crew visual
3. Effects on safety: catapult-assisted takeoff impossible
B. Failure to retract
1. Indications
NOTE: There is a 10 sec delay in the launch bar failure to retract,
warning circuitry after airborne with gear down.
a. MASTER ALERT flashes
b. Warning tone sounds in headsets
c.
L BAR red (not retracted) light illuminates
d. With landing gear retracted, indications will cease but problem
may still exist
2. Verifications: if available, tower/other aircraft visual inspection
3. Effects on flight safety
a. When landing gear extended again, malfunction and associated
indications may reappear
b. Arrested landing not permitted
POWER UNIT
HYD 1
ACTUATOR
PRESS
HYD 1
RET.
Figure 6: LAUNCH BAR SYSTEM OPERATION
Page 12-12
(9-98) Original
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