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A77-00-00-006.fm
ENGINE INDICATING - CURRENT EXCEEDANCES
General
If there are current exceedances for engine 1, the MCDU shows the ENGINE 1 CURRENT EXCEEDANCES SUMMARY page when you select ENGINE 1 on the EXCEEDANCE MENU. A current exceedance is an exceedance that occurs during the current leg and was not reset.
The engine indicating system starts a new leg for exceedances when the airplane speed is more than 80 knots.
The engine indicating system shows engine 2 data the same as engine
1. Only engine 1 exceedance MCDU pages show on this page.
ENGINE 1 CURRENT EXCEEDS SUMMMARY Page
The CURRENT EXCEEDS SUMMARY page gives this data about the current exceedances:
-Exceedance type (N1 RED, N2 RED, EGT RED, EGT HOT
START)
-TIME (total time of exceedances in the current leg for each type
of exceedance)
-PEAK (highest peak value)
-QTY (number of exceedances).
ENGINE 1 Menu Page
The ENGINE 1 menu page lets you select CURRENT EXCEEDANCES or FLIGHT LEG EXCEEDANCES. The CURRENT EXCEEDANCES selection shows you the CURRENT EXCEEDANCES SUMMARY page. The FLIGHT LEGS EXCEEDANCES selection shows you the ENG 1 EXCEEDS MENU.
January 1, 2004 - 4 -
CURRENT EXCEEDANCES Page
The CURRENT EXCEEDANCES page gives more data about the exceedances stored in DEU memory. The DEUs hold up to 10 exceedances per flight leg.
The CURRENT EXCEEDANCES page gives this data for each exceedance stored in DEU memory:
-Exceedance type (N1, N2, EGT RED, or EGT HOT START)
-Highest parameter value
-Parameter redline value and total time over redline
-Flight number
-Flight date and time in universal coordinated time (UTC)
-Altitude and computed air speed (CAS) at the time of
exceedance.
The MCDU shows one exceedance on each page. The page number and total number of pages are at the right side on the second line of the MCDU display.
Select the line select key next to RESET to reset the exceedance. When the exceedance is reset, the DEU does not show the data for this exceedance on the CURRENT EXCEEDANCE page.
Training Information Point
You must follow the maintenance action in Part II of the Airplane Maintenance Manual (AMM) and reset all current exceedances to reset the red box on the primary engine display.
77-00
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
A77-00-00-006.fm
ENGINE INDICATING - CURRENT EXCEEDANCES
January 1, 2004
77-00
- 5 -
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
A77-00-00-007.fm
ENGINE INDICATING - FLIGHT LEG EXCEEDANCES
ENG 1 EXCEEDS MENU
The ENG 1 EXCEEDS MENU gives a list of legs that had exceedances. The DEUs store up to 9 legs with exceedances. The DEU stores up to 10 exceedances per leg. The ENG 1 EXCEEDS MENU lists the legs with exceedances. The newest leg shows first. The ENG 1 EXCEEDS MENU also gives the number of exceedances stored for each leg.
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