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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
Post shutdown
559 (No. 1 ENG) Abnormal rise in PTIT during
Abnormal rise in PTIT
fire
563 (No. 2 ENG) engine coastdown with N1 less
during engine coastdown
than 35%.
with N1 less than 35%.
Detector fail
560 (No. 1 ENG) Fire warning lights illuminate.
None
(no fire)
564 (No. 2 ENG)
Flameout
565 (No. 1 ENG) Engine decelerates to zero.
Rotor rpm continues to
566 (No. 2 ENG) Torque on affected engine goes
decay until thrust and
to zero. Good engine delivers
engine trim are adjusted
power requirement up to topping.
on operable engine in
If demanded power exceeds topping
accordance with power
power of good engine, rotor rpm
requirements.
decelerates according to load
demanded.
Flameout both
567
Both engines decelerate to zero.
Rotor rpm decays rapidly
engines
Torque on both engines goes to
if thrust control rod is
zero.
not lowered immediately.
Engine power
568 (No. 1 ENG) Fluctuation in torque, N1,. and
Fluctuation in torque,
variation
569 (No. 2 ENG) engine oil pressure. Normal
N1. and engine oil
indications on unaffected engine.
pressure. Normal indi-
cations on uneffected
engine.
N2 overspeed
570 (No. 1 ENG) Increasing torque on affected
Possibility exists for
(governor drive-
571 (No. 2 ENG) engine, decreasing torque on
rotor rpm to exceed safe
shaft fail)
unaffected engine, increase
limits.
in rotor rpm, and no response
of normal engine beep trim
system.
7-14
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