CTC-231-092-00 AIDS REPORTS
EFFECTIVITY
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION AIDS MESSAGE
INTERROGATION
FAULT DETECTION
& ANNUNCIATION Page 11 Nov 02
CFM56-5B TRAINING MANUAL
THE AIRCRAFT INTEGRATED DATA SYSTEM (AIDS).
Engine cruise report <01>.
This report is a collection of data over a period of time in which the aircraft met the appropriate stability criteria. The required stability period is 100 seconds (programmable value). Whatever the number of times the stability is detected, only one report is generated per flight leg.
If no stability is detected, then a report is generated with the following message in its last line :
NO STABLE FRAME CONDITION
The report mainly contains operating data of both engines, including vibration data.
All the data is an average over the required stability period, except :
- serial number, flight hours, running time, cycle. - Autopilot status.
- Engine quality number used as stability indicator. - Oil consumption from the previous flight.
- Engine vibration status word, engine control word, status of FADEC sensors.
- Data lines V3, V4, which are the averaged values
taken from the last stable descent (last leg).
- Data lines V5, V6, which are the averaged values
taken from the last stable climb (current leg).
Cruise performance report <02>.
This report is similar to the engine cruise report, except that the data is sampled for longer periods and more information is provided about the aircraft.
The following data is added :
- Aircraft quality number used as stability indicator.
- Inner cell fuel quantity. - Elevator position.
- Corrected angle of attack and side slip angle.
- Last DMU calculated flight path acceleration and inertial vertical speed.
- Roll angle and body axis yaw rate (average).
- True heading, longitude and latitude positions.
- Wind speed and direction (average).
- Fuel temperature and density (average).
- Flight controls positions (average).
In addition, the trigger logic for this report differs from the engine cruise report and is performed independently (e.g. the required stability period can be different).
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