20-06-2013, 02:43 PM
AE-2405 AIRCRAFT SYSTEMS LABORATORY
INTRODUCTION TO AIRCRAFT SYSTEM
An aeronautical engineer must have a solid foundation in basics of A/C System, the principle of cooling and sound knowledge of the way the principle is applied to various systems used in the A/C. The various systems that exist in aircrafts are as follows
Hydraulic System
Aircraft Oxygen System
Pneumatic System
Air-conditioning and Pressurization System
Electrical System
Engine oil & Fuel System
Aircraft Instrument System
Ice and rain protection system
Fire protection and smoke detection system
Leak and Waste system
Aircraft weapon (Rocket, Gun, Missiles, Bomb& Ejection system)
Communication and navigation system
Propulsion system
Though the systems are used to operate the various counter and components, they require day to day check, repair & examination for smooth and proper function. The purpose to conduct A/C system lab is to familiarize day to day activities required to maintain airworthy condition of A/C.
AIRWORTHINESS
The continuing capability of the A/C to perform in satisfactory manner, the flight operation for which it is designed.
INSPECTION
It is the most important form of function of aviation maintenance. As the A/C gives complexity, it becomes more important to detect any possible trouble before it becomes serious. To assist this, aero engineers are provided with detail special check list and the maintenance manual for each type of A/C. The engineer has to go through maintenance manual thoroughly before attempting any kind of activity in aircraft and its components. The operations may be carried out on A/C on daily flying hours and/or cycle basis.
MAINTAINENCE
The set of action including inspection, servicing, and determination of condition required to achieve a derived outcome which restore an A/C part and equipment in serviceable condition.
OVERHAUL
Overhaul means stripping a unit and restoring it to its design performance level after replacing, reworking of parts to a given standard.
SERVICING
It means preparing the A/C for flight, includes providing the A/C with fuel and other fluid and gases but do not include any work that is maintenance.
TROUBLE SHOOT
It means to analyses and identify the malfunction.
REPAIR
It means to correct the defective condition.
MODIFICATION
It is a continuous process to improve its reliability and performance.
SERVICING SCHEDULES
Servicing on Hours/Calendar/Cycle basis, which are to be carried out on aircraft at set Hours/Calendar/Cycle basis are mentioned in the manual or A/C servicing schedule. The servicing includes examination, inspection, lubrication and removal of major components such as landing gear jacks, door locks, air-conditioning equipments; aircraft brake units wheels etc. landing gear functional test, flying control range and moment check., A/C rigging procedure, hydraulic fluid contamination test, fuel contamination test & some activities requires replacement of components.
Aircraft maintenance checks are periodical checks that have to be done on all aircraft after a certain amount of time usage. Aircrafts usually refer to as one of the following checks.
A CHECK
This is performed approximately every month. This is usually done over night. The actual occurrence of this check varies by the type, cycle or number of hours flown since the last check. The occurrence can be delayed by the aircraft if certain predetermine conditions are met.