ENGINE CAUTION/WARNING ANNUNCIATORS

TM 1-1520-238-10 Change 9 2-33 cell fuel quantity. The CPG engine instruments are tested by pressing the TEST pushbutton on the SDD panel which causes all vertical-scale readings to be fully illuminated, and all digital displays to indicate 888. The engine instru- ment test panel (fig 2-20) also has the capability of testing the CPG engine instruments by selecting the TST position of the DGT/OFF/NORM/TST switch. In this position all vertical-scale displays will be fully illuminated and the digi- tal displays will indicate 888. Selecting the DGT OFF posi- tion will blank all CPG digital displays. M01-016 Figure 2-21. Selectable Digital Display Panel 2.33 ENGINE CAUTION/WARNING ANNUNCIATORS. All cautions/warnings for the engines have been dis- cussed in this section. These caution/warning segments, and their fault indicators, are summarized in Section XIV, tables 2-5 and 2-6. It should be noted that the CPG cau- tion/warning panel has fewer segments than the pilot cau- tion/warning panel and that specific faults are often not displayed. Illumination of any one of the pilot caution/ warning segments that indicates an engine problem will simultaneously illuminate the CPG ENG 1 or ENG 2 seg- ment. 2.34 ENGINE HISTORY RECORDER An engine history recorder is mounted to the forward right side of the engine (fig 2-16). Signals are sent to the history recorder by the ECU. The recorder displays two readouts of low cycle fatigue (LCF) events, a time temper- ature index, and engine operating hours. These readouts cannot be reset to zero. The engine history recorder is present only on the -701 engine. 2.35 ENGINE HISTORY COUNTER An engine history counter is mounted to the forward right side of the engine (fig 2-16). Signals are sent to the history counter by the DECU. The counter displays two readouts of LCF events, a time-temperature index and en- gine operating hours. These readouts cannot be reset to zero. The engine history counter is present only on the -701C engine.