using a floppy disk or via the PCMCIA interface to a PCMCIA card, -downloaded through ACARS in flight or on ground.
4.3.4. The Ground Support Equipment (GSE)
For the individual programming of the DMU/FDIMU functions, the DMU/FDIMU is programmable either with the assistance of an AIDS/ACMS GSE or partially through the MCDU (very limited). The GSE is a software developed by the DMU/FDIMU manufacturer. The GSE is under airline responsibility.
4.3.4.1. AIDS/ACMS reconfiguration tool The tool can be used: -to program trigger conditions, processing algorithms, layout of report formats, and the DAR & SAR recording format. -to configure the AIDS/ACMS DMU/FDIMU database -to create user programmable reports, sophisticated aircraft monitoring and data collection functions.
The program is loaded into the DMU/FDIMU on ground using the MDDU or the PCMCIA card
4.3.4.2. AIDS/ACMS readout tool It allows the operator to view the reports.
4.3.4.3. Data processing analysis
Once the in-flight data have been retrieved, they can be processed and analyzed with the APM program.
Flight Operations & Line Assistance Getting to Grips with Aircraft Performance Monitoring
HOW TO RECORD IN-FLIGHT PARAMETERS
4.3.4.4. Example of SFIM GSE – Triggering condition programming
4.4. The Cruise Performance Report
In brief, the recording systems described above produce a series of reports. Only the Cruise Performance Report or DMU/FDIMU report number <02> (CPR<02>) is of interest for aircraft performance monitoring. The present paragraph describes this particular file and may be considered as a reference.
4.4.1. General
The DMU/FDIMU is configured at the delivery of the aircraft to produce one report per hour. This may be changed via reprogramming the DMU/FDIMU via the Ground Support Equipment (GSE). It is the operator’s responsibility to update the DMU/FDIMU software.
The report <02> provides aircraft and engine data recorded in stabilized cruise. Some stability conditions and triggering conditions are mandatory so that the DMU/FDIMU can store data on the report. The stability criteria are given in this paragraph.
Flight Operations & Line Assistance Getting to Grips with Aircraft Performance Monitoring
HOW TO RECORD IN-FLIGHT PARAMETERS
The CPR<02> can be obtained:
-on a piece of paper via a printout on the cockpit printer
-in digital format (on a diskette, on the DAR optical disk (A330/A340 only), on a PCMCIA card (A320 FAM aircraft only) or via transmission by ACARS)
The advantages of automatic recording are that::
-all data required for cruise performance analysis are stored in the CPR<02> format
-the report in digital format can be used “as is” without any additional handling operations. When the report is not in a digital format, the same typing operations as in case of manual recording will have to be done by the operator.
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