T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
HYD 1, HYD 2, and RAT EXTEND caution
lights; warning tone sounds with HYD FAIL
warning light
D.
Hydraulic system malfunctions
Sg 6, fr 45
HYD 1 Slow Loss of
Pressure
1.
HYD 1 and HYD 2 slow pressure loss
a.
Indications: in flight, pressure in either system
is lower than normal or visibly decreasing, as
indicated by HYD 1 or HYD 2 pressure gauges
in both cockpits
b.
Verifications
(1) HYD 1
(a)
Pressure continues decreasing
(b) At approximately 1500 psi, loss of
general services (e.g., speed brake)
noted
(c)
At approximately 600 psi
(i) MASTER ALERT light flashes
(ii) Caution tone sounds
(iii) HYD 1 caution light illuminates
(2) HYD 2
Sg 6, fr 49
HYD 2 Slow Loss of
(a) Pressure continues decreasing
Pressure
(b) At approximately 1660 psi
(i) MASTER ALERT light flashes
(ii) Caution tone sounds
(iii) HYD 2 caution light illuminates
(9-98) Original
Page 27-65
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