Table 7-2. Simulated Malfunction Details (cont)

Table 7-2. Simulated Malfunction Details (cont) - TM-55-6930-212-10_54

Table 7-2. Simulated Malfunction Details (cont) - TM-55-6930-212-10_56

TM-55-6930-212-10 Pyrometer and Thermocouple Tester Field Type N-3A Manual
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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) 7-14

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