Any one working in aviation knows the importance of NAV Database. It is regularly updated ( Each 28 Days ).
You can update NAV database using a set of floppy disks containing the NAV database .
You will also need to use MCDU , MDDU , DLS and CBs
1 - This instructable is not by any means can be used as a guide for updating the NAV database of Airbus A320 or any other aircraft.
This instructable is written only to make non aviation professionals familiar with Avionics ( Aviation Electronics ) world and industry. It is a kind of knowledge sharing and creating an open source content.
In case you need to make NAV database update or any other type of task on an aircraft you should refer to its manufacturers' certified updated manuals.
2- You may find it a bit weird to use such an obsolete technology ( floppy disks ) on something of advanced technology like commercial aircraft in the 21st century where every body have USB flash memories and iPods to carry Tera Bytes of information.
This point is different. Actually , the floppy disks used here are the advanced technology and a modification made for this type of aircrafts. This type had their NAV database updated using a portable data loader which was heavy and big to carry.
The reason for this lag between aviation technology and information technology is that the aviation technology takes more time to certify and use advanced new products and inventions from information technology on-bored aircrafts.
The Airbus A320 was first introduced around the 80's and still is developed and in production. The A320 model in this instructable is in service from 90's .
3 - It is NOT about Airbus and Boeing competition. Aircrafts made by Boeing from the same decade have technology of the same type. The most advanced type of NAV database update I 've seen on commercial aircrafts is that used on-bored Embraer ERJ-170 which is done using CD . Noting that the model of Embraer ERJ-170 I've seen is launched in the 2007 .
Thank you for your interest in my instructable.
Step 1: Preparation and Notation
Lets see some things that can make our process easy.
MDDU ( Mult Disk Data Unit ) -------- > Floppy Disk reader.
DLS ( Data Loading Selector ) -------- > Used to route software from MDDU to specific selected computer.
CB Circuit Breaker -------- > Used to disconnect electric power supply from specific computer for isolation and reset.
MCDU ( Multifunction Control Display Unit ) -------- > The two small screens and keyboards on the central pedestal.
Step 2: Start
- Pull FMGC 1CB and FMGC 2 CB
- Set DLS ON/OFF Switch to ON
- Press NEXT Switch on DLS until you get FMGC 1 on LCD
- Press SELECT CTL Switch on DLS to select FMGC 1
- Put Disk 1 into the MDDU
- Put FMGC 1 CB to ON
You find that the LCD on the MDDU has the message Transfer in Progress
Step 3: Disks to Go
Now , you can eject Disk 1 and Insert Disk labeled 2 .
The process is repeated for Disk 2 , Disk 3 and Disk 4 .
Then you see the message " Transfer Complete " indicating that the NAV Database has been successfully loaded for FMGC 1.
Now on the Data Loading Selector , press Next until you get FMGC 1 on the LCD , then press SEL CTL
to deselect FMGC 1 . Then put DLS ON/OFF switch to OFF position.
Then we want to verify that FMGC 1 has been uploaded with new NAV database.
Reset FMGC 1 by pulling FMGC 1 CB for 10 seconds then push it back.
On MCDU 1 press the button DATA .
Then press the Line Select Key ( LSK ) adjacent to < A/C STATUS .
Then you get the page that views the old ( ACTIVE ) NAV Database and the new ( SECOND ) NAV Database .
You can see that the new NAV Database has been uploaded successfully.
Step 4: Cross Load FMGC 2
Here , we will cross-load NAV Database from FMGC 1 to FMGC 2 from computers directly without using any disks.
First , push FMGC 2 Circuit Breaker ( CB ) to activate FMGC 2 .
Then , on MCDU 1 , press DATA button ,
Line Select Key ( LSK ) adjacent to STSUS/XLOAD > ,
- Make sure that on the top right of the page you see 3/7 , this means that this is the third page of the software pages of the FMGC . The third page is the NAV database . This is important because you don't want to cross-load the entire software pages of FMGC 1 to FMGC 2 , but you want to cross-load the NAV database page only ( the third page ).
- Make sure that you see the phrase XLOAD FM1 TO FM2 .
This is very important because you want to cross-load NAV database page from FMGC 1 to FMGC 2 not the opposite. Be Careful.
Line Select Key ( LSK ) adjacent to START ,
Line Select Key ( LSK ) adjacent to * CONFIRM
The cross-load process starts and takes only about 3:20 minutes.
Then you see the phrase FM1/FM2 IDENTICAL .
Now you want to reset FMGC 1 and FMGC 2 by pulling FMGC 1 CB and FMGC 2 CB for 10 seconds then pushing them .
Now you have successfully uploaded FMGC 1 with NAV database and cross-loaded FMGC 2 from FMGC 1.
Final Step . Don't forget to sign off the aircraft Technical Log Book ( TLB ).
Thank you for reading my instructable.
You can also find my book Learn By Making on Amazon website.
If you like this instructable you can support us by many ways:
1. Leave comments stating your point of view about this article.
2. Buy our book on Amazon Learn By Making.
3. Click on links of our sponsors without adding any extra cost on you if you make purchase from them. Actually, many of these offers are totally free. This means that you can enjoy something for free and still support our blog to keep posting useful stuff.
This is the well-know Amazon Kindle platform. If you sign up for the free reader from Amazon to read any book, we get commission. There are many useful book for free on Amazon Kindle. Even you can find best sellers offered for free on Kindle format. The best part is you can have the application on any platform. You can even read any book without installing any application by using Amazon Cloud-Reader on your browser.
You can join Amazon Kindle for 30 days free to have access to many paid book for free. You can cancel you subscription anytime.
The Amazon Prime is a special paid service from Amazon that offers good promotions and one-day free shipment for Amazon Shoppers. You can try this service for 30 days. You can cancel you subscription anytime.
Audible is the audio books website from Amazon. Many Kindle books are sold on Audible. You can try this service for free and get 2 free book. You can cancel you subscription anytime.
If you have a new baby borne or expecting one, you can create your free baby registry to easily save products and get offers and promotions on baby requirements.
4. Visit our new website outatime.tech.
Thank you for visiting our instructable.