C.  If you cannot install the software from the flight compartment, then you can install the software through the connector at the front of the EICAS computer.
 D.  Each task is an independent task and can be performed individually, as required.
 E.  You will possibly install the OPC. The OPS is the core software and will possibly not change.
 F.  AIRPLANES WITH POST -1000 SERIES EICAS COMPUTERS AND POST S/W P/N 3171-COL-DE0-02 (VERSION 2); You can load the one EICAS computer using the diskettes and the other EICAS computer via cross-loading. You can cross-load the OPC. The OPS cannot be cross-loaded.
 TASK 31-41-02-402-006
 2.  Software Installation - Portable Data Loader Through The Front of The EICAS____________________________________________________________________________
 A.  General
 (1)
This procedure tells you how to install software in the EICAS computer through the connector on the front of the EICAS.

 (a)  The EICAS computer must contain these pieces of software: 1) operational program software (OPS) 2) operational program configuration (OPC)

 (2)  
There is no required order in loading the OPS and OPC software. The loading of one does not affect the loading of the other.

 (3)  
You must install the same OPS(OPC) part numbers in the two EICAS computers. "EICAS SOFTWARE" will show if you install different OPS(OPC) part numbers.

 (4)  
A portable data loader (PDL) is necessary for this procedure.

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MAINTENANCE MANUAL

 (5)  
A PDL is not a Boeing supplied part. Refer to the PDL supplier for instructions for operation. PDLs have a disk drive for software installation from disks. Some PDLs have an internal mass storage device. If the software is stored in the PDL, then disks are not necessary.

 (6)  
These conditions must be exist before you install software:

 (a)  
The airplane is on the ground,

 (b)  
The engines are off and

 (c)  
The parking brake is set.

 (7)  
To read about software installation times and data loaders, do this task: On-Airplane Software Installation (AMM 20-15-11/201).

 B. Equipment
 (1)  
The most up to date disk(s) for the EICAS computer.

 (2)  
Data Loader (or alternative tool)

 (a)  
11615-02 Loader - Data, Portable, ARINC 615-3 (alternative) Qualtair Equipment and Engineering (Vendor Code 1HEC2) 15720 Mill Creek Boulevard, Suite 200, Mill Creek, WA 98012

 (b)  
11615-20 Loader - Data, Portable, ARINC 615-3, Includes Mass Storage Device (alternative) Qualtair Equipment and Engineering (Vendor Code 1HEC2) 15720 Mill Creek Boulevard, Suite 200, Mill Creek, WA 98012
　
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