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Table 7-2. Simulated Malfunction Details (cont) | Up
TM-55-6930-212-10 Pyrometer and Thermocouple Tester Field Type N-3A Manual | Next
Table 7-2. Simulated Malfunction Details (cont) |
TM 55-6930-212-10
Table 7-2. Simulated Malfunction Details - Continued
Method of
Indications and effects on
Effects sensed by trainee
introduction
related systems as presented
if corrective action is
Malfunction
by instructor
to the instructor and trainee
not taken
Power turbine
519 (No. 1 ENG) PTIT indicator reads zero.
None
inlet temperature
520 (No. 2 ENG) No other systems affected.
(PTIT) indicator
Torquemeter
521 (No. 1 ENG) Torquemeter indicator needle
None
indicator fail
522 (No. 2 ENG) fluctuates.
Engine start
551 (No. 1 ENG) 1.
Prior to start sequence,
None
valve fail
552 (No. 2 ENG)
there is no response when ENG
START switch is moved to MOTOR.
2.
During starting sequence, but
before N1 reaches 35 percent,
engine decelerates, PTIT de-
creases below 350°C, and aural
cues and instruments reflect
decreasing N1.
Hot start
553 (No. 1 ENG) Rapid rise in PTIT to above
Rapid rise in PTIT to
554 (No. 2 ENG) red line value of 940°C. PTIT
above red line value
begins to decrease as soon as
of 940°C.
ECL is moved from flight to stop.
Hung start
555 (No. 1 ENG) Slow N1 acceleration with
N1 stabilizes at 40%.
556 (No. 2 ENG) abnormal rise in PTIT. Engine
Engine overtemperature
overtemperature may exist.
may exist.
Fire-ground (non-
557 (No. 1 ENG) Fire warning lights illuminate.
None
extinguishable)
561 (No. 2 ENG)
Fire-ground
558 (No. 1 ENG) Fire warning lights illuminate.
None
(extinguishable)
562 (No. 2 ENG)
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