after a GTE is running and provides indication
FLAMEOUT. --The FLAMEOUT indicator
(G) will illuminate when T5.4 drops below 400F
of each shutdown on the PCC.
after the fuel manifold pressure becomes greater
T5.4 above 1530F.
than 50 psig and after a GTE run signal is
obtained. When this happens, an automatic shut-
GTE oil pressure below 6 psig.
down will occur.
High GT vibration (GG above 7 mils or
PT above 10 mils).
ENGINE LUBE OIL SECTION.--The
Flameout (T5.4 less than 400F after PT
ENGINE LUBE OIL section (H) monitors the
fuel manifold pressure becomes greater
operation of the engine's LO supply and scavenge
than 50 psig and after an GTE run signal
systems. The engine LO section of the panel is
is obtained).
only for monitoring purposes and has no control
functions. It has a meter and seven indicators used
The meter in the VIBRATION subsection is
to detect abnormal conditions of the engine LO
always reading the vibration on the GTE at the
system.
position selected by the switch. The switch is a
four-position switch. It allows you to look at the
The left column of three indicators monitors
two different vibration pickups. One is located
the GTE scavenge oil. Starting at the top of the
on the GG and the other is on the PT. Each
left column, the first indicator is labeled HIGH
pickup senses both GG and PT vibration. A
PRESSURE. It will illuminate and an alarm will
tracking filter for each pickup separates GG
sound when scavenge pressure is above 130 psig.
vibration from PT vibration depending on
The second indicator is labeled LOW PRESSURE
vibration frequency. Limits apply to frequency
and will illuminate and an alarm will sound when
and not pickup location. The HIGH VIBRATION
scavenge pressure drops below 5 psig. The third
indicator will illuminate when the vibration
indicator is labeled HIGH TEMP and will
on the GG reaches 6 mils or the PT reaches
illuminate and an alarm will sound when any of
7 mils. An automatic shutdown occurs when GG
the five scavenge temperature RTDs detect a
vibration reaches 7 mils or PT vibration reaches
temperature above 300F. When this alarm
10 mils.
sounds, the operator should use one of the DDIs
listed at the bottom of the column (ACCESSORY
GEAR BOX, SUMP A, SUMP B, SUMP C, or
SUMP D) to identify which scavenge temperature
is high.
The right column has four indicators and
monitors the GTE lube oil supply. The first
indicator at the top of the column is labeled
TANK LEVEL LOW and is used to monitor
the level of the LOSCA lube oil tank. The
indicator illuminates and an alarm sounds
when the tank level falls to 9.6 gallons. The
second indicator is labeled COOLER DIS-
CHARGE TEMP HIGH. It monitors the outlet
temp of the oil leaving the LOSCA cooler.
It illuminates and an alarm sounds if the
temperature of the oil exceeds 250F. The
third indicator is labeled FILTER HIGH AP. This
indicator illuminates and an alarm sounds when
t h e differential pressure across the LO
supply filter exceeds 20 psid.
The SUPPLY PRESSURE meter displays the
supply pressure of the LO. Associated with the
meter is the LOW PRESSURE alarm indicator.
This indicator illuminates and an alarm sounds
when the engine LO pressure drops to 15 psig.
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