A320 WALK AROUND.WMV

Maintenance || A320 Type Course: Maint. External visit. Air Arabia Engineering   / airarabiaengineering   ====================================== This film presents the A321 outside safety inspection and cockpit Check-List (CL) to be performed before powering the A/C for maintenance purposes. Various main stations have been defined. The inspection starts with the nose station. First verify that the NLG chocks are in place. Then, observe that the NLG doors are closed. Make sure that the NLG safety pin is installed. The NLG steering pin must be as required. Finally, verify that the A/C is electrically grounded. The second step consists of inspecting the right MLG. Start by checking that the MLG door is closed. Then, verify that the MLG safety sleeve is installed. Lastly, observe that the MLG chocks are in place. Let us continue with the right engine station, the first thing to do is to make sure that the engine right side access doors are secured. The same must be done for the left side. Check that the engine fan cowls and thrust reverser cowls are secured. The right wing is the 4th station. Observe the position of the slats and then, the flaps. The spoilers must be retracted. Then move to the left wing station. Here again observe the position of the flaps and then, the slats. Although make sure that the spoilers are retracted. The next step is the left engine station. Check that the engine right side access doors are secured. Then pass around the engine to verify that the left side access doors are secured. Make sure that the engine fan cowls and thrust reverser cowls are secured. Proceed with the left MLG station. The Ram Air Turbine (RAT) safety device must be in the stowed position. Continue by checking that the MLG door is closed and that the MLG safety sleeve is installed. Before moving on, observe that the MLG chocks are in place. In the A/C area station you have to make sure that the A/C area is clean and clear of tools and any other items. Now you have to check the 9th station: the external power receptacle. Verify that the external power is connected and available. Finally enter the cockpit for the last station. Start by checking the rear and the overhead circuit breaker, then have a look to the emergency equipment. This consists in: verifying that the escape ropes are present, observing that the fire extinguisher is in position, making sure that the cockpit is equipped with smoke hoods, checking that the fire protective gloves are present, ensuring the crash axe is in position, checking that the cockpit is equipped with life vest, verifying that the oxygen masks are present, observing that the flash lights are in position. You must then make sure that the wipers are off. BATtery 1 and 2 P/BSW must be off and their voltage should be about 25 volts. Proceed by setting the BAT1 P/BSW to AUTO. Then, set the BAT2 P/BSW to AUTO, check that the right hand dome light is on. Verify that the speed brake handle is in the RETract disarm position. If the speed brake handle disagrees with the surface position maintenance action is due. On the center pedestal make sure that the thrust levers are in the idle position. Engine master switches 1 and 2 must be in the OFF position and the engine ignition mode selector in the NORMal position. Observe that the flap handle is set according to surface position. If engine reverse cowls have to be opened for maintenance action, the slats must to be retracted. Still on the center pedestal, check that the radar is off, also verify that the ATC transponder is off. Make sure that the gravity gear extension crank handle is in the reset stowed position. On the instrument panel observe that the three green triangles on the LanDinG GEAR panel are on. The control safety check list should now have been accomplished. On the overhead panel set the EXTernal PoWeR P/BSW to ON, also set the GENerator 1 P/BSW to on and the GEN2 P/SW to ON. Scan and check that no amber lights are on except GEN1 and 2 FAULT light on panel 44VU. The GALY & CAB P/BSW should be as required. Finally verify that there is no light on the VENTilation panel. The A/C is now ready for maintenance. NOTE: This film shows an A321 but the procedure is also valid for A318, A319 and A320 aircrafts.