A day at Line Maintenance

A day at line maintenance could start at morning, afternoon or evening. The work to be done day or night is very different.

 In the day job the TMA carries out transit works on the planes that have designated to you checking parameters of the aircraft like oil or hydraulic levels; the pressure of the tires; a visual check of the fuselage, wings and engines; the technical logbook; the automatic reporting system of the aircraft and repairing these problems if is possible or dispatching the aircraft according MEL (Minimum Equipment List) with the objective of give the OK to the aircraft for do the next jouney with the minimum delay.

 At night the planes do not fly, they are on land and the job of the TMA is do the Daily Check or A-check to 3-4 aircrafts and is a more exhaustive check and fixing the problems that had been dispatched according MEL during the day.

Maintenance Task: Removal/Installation of a battery

First we have to read the technical logbook or the task card to know which is the problem of the aircraft. This time we see how the pilot has reported a failure of the plane’s battery.

 We will go to the maintenance manual (AMM) of the airplane to know what we have to do and read:

REMOVAL / INSTALLATION
1-Locate the batteries of the airplane with the Ilustrated Parts Catalogue (IPC).
2-Take the safety precautions by disconnecting the circuit breakers of “Batttery” and “DC System” and marking with a card where we can read “DO NOT OPERATE”.
3-Remove the cover panel of the battery placement.
4-Cut the lockwire of the battery’s connector and disconnect the battery.
5-Remove the battery.

1-Install a new or overhauled battery.
2-Connect the battery and lockwire the connector with a 0,021’ diameter of copper wire.
3-Install the cover panel.
4-Connect the “Battery” and “DC System” circuit breakers and remove the cards.
5-Test the DC System and the battery indications.

Air Florida flight 90 - Boeing 737

Causes of the accident

The biggest snowfall the pilots had seen. A non-recommended proportion of de-icing mix used on airplane. The layer of snow that accumulated on the wings after use the reverses to leave the parking. Have the system of anti-ice of the engines off and that freeze the inlet of the engine pressure sensor and caused a false reading of power in cockpit. But overall the unconsciousness of the captain to commit all these errors like not doing another de-icing knowing they had got snow on their wings and unfollowing the procedures.

Heroes of the accident

The police helicopter team of the city of Washington DC for the rescue of the survivors in the iced river. And Lenny who jumped into the iced river to rescue Priscilla Tirado to die frozen.

Crashes caused by maintenance errors

The flight of a McDonell-Douglas of Alaska Airlines in January of 2000 finished into the sea with 0 survivors. A bad maintenance for the Alaska Airlines engineers on the screwjack of the horizontal stabilizer caused the imposibility of control the aircraft. Another flight of Air Canada in June of 1982 landed emergency in Cincinnati after a fire into the cabin caused for a bad union and maintenance of the electric cables, died 23 people. 

DEICING PROCESS

ALASKA AIRLINES SCREWJACK

Why am I studying this?

I am studying aeromechanical maintenance because after 2 years of trying a university career in the UIB, I saw that this was not done for me. I looked for the offer of professional training that exists in the Balearic Islands and the only profession in which I really saw myself working and I liked it was this aircraft mechanic.

THE FIRST GIANT OF THE AIR. BOEING 747

The Boeing 747 is the icon of the world aviation, with its 4 engines and its second floor make it recognized wherever you go.

Nicknamed "Jumbo", in 1970 it was the first wide-body aircraft built in the world, that is, it was the first double-aisle airplane. 

It has a maximum capacity of about 600 people. The cargo version was able to load about 180,000 kg. And a modified version was able to transport the space shuttle over the fuselage.

The Jumbo gets its power from 4 turbofan engines Pratt & Whitney with high bypass ratio. Once again a pioneer in his time. It also had the largest comfort and entertainment system on board with 170 miles of cable inside its walls.

My new lesson

The control reversal:

Is an advers effect on the controllability of aircraft when the flight controls reverse themselves  in a way that is not intuitive.
This problem occurs at high speeds when the airflow over the wing becomes so great that the force generated by the ailerons is enough to twist the wing. For example the aileron is deflected up for make the wing move down, the wing twists in the opposite direction, the airflow goes directed down it and the wing moves upward.

A day in Globalia!!

HOW TO GET THERE?

To reach Globalia you have to take the Ma-19 motorway and take exit number 22 towards Son Noguera, after turn right for entry at enclosure. Our building, marked in orange, is dedicated to formation.

  

This is the hall, up there are the teoric classrooms, where we spent the first 4 hours everyday.

Upstairs we find the rest area on the right hand and the offices of the instructors on the left hand. On the board hang the marks.

If we continue straight we will arrive to our classrooms, to the left hand the 1st course and after at right hand the 2nd course.

Then we spent the last three hours in the workshop on the ground floor. The workshop is divided into : workshop area, library, tools zone, engines and outsite.

HOW TO MAKE A BLOG

Hello and welcome to this tutorial on how to make a blog

Today is very easy to create a blog thanks to websites like Blogger, in a few minutes we will have done. Lets go see it:

1- First of all is to enter the web blogger.com.

2- In the center of the screen will appear "Create your blog", click on it.

3- We registered with a Google account and confirmed our profile on Blogger.

4- Now we can start, click on "Create your blog" and we will start to define it.

5- We will write in the corresponding box the name of the blog, the domain and a theme that we like and we will personalize it.

6- Just start sharing posts like this.