DELTA is the temperature increment for the exceedance profiles.
TAKEOFF THRUST is the N1 value where the AIMS sets the takeoff thrust discrete. The AIMS shows a takeoff warning if the takeoff thrust discrete is set and the airplane is not in the correct takeoff configuration.
The MINIMUM IDLE and DELAY display show data that the AIMS uses to find if the engine is running. MINIMUM IDLE is an N2 reference value. DELAY is a time delay in seconds. The AIMS usually gets an engine run discrete signal from the EEC. If that signal is invalid, it uses N2. If N2 is above minimum idle for more than the time delay shown, then AIMS sets the engine run discrete.
The OIL QTY: LOW display shows the low limit, in quarts, for engine oil quantity. With low oil quantity, the secondary engine page oil quantity display, (not shown) shows in reverse video. Reverse video shows with black letters on a white background. The letters LO also show next to the oil quantity display.
The VIB: WHITE display shows the vibration level that causes the vibration display on the secondary engine page (not shown) to show in reverse video (black letters on a white background). This vibration level also causes the secondary engine page to show automatically.
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In-Flight Relight Data
The IN-FLIGHT RELIGHT display shows data that the AIMS uses to make the in-flight relight envelope (not shown). The in-flight relight envelope shows on the EICAS display.
Cross-Bleed Start Data
The CROSS-BLEED START display shows data that defines the cross-bleed start envelope. If the airplane is in the cross-bleed start envelope, the cross-bleed start annunciation (not shown) shows with the relight start envelope on the EICAS display.
APU Data Limits
The APU display shows data limits for these APU parameters:
*
RPM
*
EGT
*
Oil pressure
*
Oil temperature
*
Oil quantity.
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ENGINE INDICATING -SUMMARY
General
The engine indicating system supplies engine data to the EEC. The EEC monitors the engine parameters and sends them to the AIMS and the AVM signal conditioner unit. The AIMS shows the engine parameters on the EICAS and secondary engine displays.
These are the engine parameters that engine indicating system monitors:
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