Operation
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Operators manual
Handheld Multi-Purpose Interface (HHMPI)
Figure 15.0 Decompressing Honeywell CVR file away from the aircraft
After the decompression completes, the raw CVR file and the waveform files from each
channel will be available on the nominated storage device. These files can be transferred
to a computer or another device where they can be replayed. A codec may need to be
installed, this is included as part of the HHMPI kit.
4.3.4 Using the CVR rack adapter
To download the CVR data, record mode must be disabled. Without disabling record
mode, you cannot download CVR data. Use the CVR rack adapter to power the CVR from
aircraft power by plugging it into aircraft power and then into the rear of the CVR. Once
powered, recording is disabled on the CVR and the data is ready to download.
4.3.4.1 Using the Honeywell CVR Rack Adaptor part number FDS400-215
Firstly ensuring no power is provided to the CVR, disconnect the aircraft power from
the back of the Honeywell CVR while in the rack.
Connect the CVR Rack adaptor into the back of the CVR and reconnect aircraft power
to the CVR Rack adaptor instead.
Power the CVR at the aircraft and then connect the HHMPI interface cable (connected
to the Rack Adaptor) to the HHMPI and start up the unit.
With CVR recording now disabled using the Rack Adaptor ensure the blue plane
appears in the HHMPI and begin a CVR download at the aircraft.
4.3.4.2 Using the L-3 CVR Rack Adaptor part number FDS400-247
The L-3 CVR Rack Adaptor is almost the same design as the Honeywell. The difference
is it doesn't have nor require the Interface cable connection to the HHMPI.
Connect the L-3 CVR Rack Adaptor the same way as instructed with the Honeywell
CVR Rack Adaptor. Ensure Aircraft power is switched off to the CVR when plugging in
the adaptor to the CVR then the aircraft power connection.
Using the additional cable - The FA2100 Interface Cable P/N FDS400-202 insert this
into the CVR front GSE connector and then into the HHMPI. Power the CVR and
power the HHMPI. Ensure the blue plane appears in the HHMPI and begin a CVR
download at the aircraft.
4.4 Viewing live flight
data
The HHMPI can be used to monitor live ARINC 717 data from the aircraft. The Live Data
View can display data from the FDR in five formats: