Engine shutdown occurs either manually by moving the auxiliary power unit (APU) switch to “off”, or automatically in the event of overheat, low oil pressure, high oil temperature or APU fire warning. The low oil pressure warning provides indication of unsafe oil pressure during engine operation. A “fault light” for each reverser is located in the engine module on the overheat panel. When this fault light is illuminated, the Master Caution is triggered after 15 seconds to indicate that a subsequent failure in the reverser system may cause uncommanded reverser motion.
Exercise 104. Read, translate and give the gist of text 13.
Text 13. Fault Indicators
Fault indicators include any instruments or devices on an aircraft which can give a member of the crew information about a problem developing in the operation of the engine. These indicators may be divided into two groups: the standard engine instruments used to monitor the operation of the engines, and special devices designed to detect indications of trouble which may not be revealed by the engine instruments. Typical engine instruments for a gas-turbine engine are oil-temperature gauges, oil-pressure gauges, and fuel gauges. When turboprop engines are installed, torque-indicating gauges are often included. These instruments are all effective in detecting faults. In addition to the standard instruments, built-in troubleshooting equipment (BITE) systems are often installed. These systems include special sensors and transducers which produce signals of vibration and other indications that are indicative problems. By comparing the tendency of engine parameters to change up or down, the technician can troubleshoot engine problems.
Exercise 105. Write key questions to text 13.
Exercise 106. Decode the following abbreviations: APU, EGT, BITE, OC maintenance, ROD program, FAA, FAR, IA, FSDO, ICAO, IATA, AAIP, AD, FCC, IPC, LRU.
Exercise 107. Speak on: