SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) FUEL This document must be used for training purposes only Under no circumstances should this document be used as a reference It will not be updated. All rights reserved No part of this manual may be reproduced in any form, by photostat, microfilm, retrieval system, or any other means, without the prior written permission of AIRBUS S.A.S. FUEL GENERAL Fuel Level 2 (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 STORAGE, VENTING AND RECIRCULATION Venting System Description/Operation (3) . . . . . . . . . . . . . . . . . . . . 20 FUEL DISTRIBUTION Engine Feed System D/O (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 APU Feed System D/O (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 REFUEL/DEFUEL Refuel/Defuel Control Panel Presentation (1) . . . . . . . . . . . . . . . . . . 30 Refuel/Defuel System D/O (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 FUEL INDICATING Fuel Quantity Indicating (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Fuel Level Sensing (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 FUEL SYSTEM (A321) Fuel Feed System Operation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Fuel Quantity Indicating (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Fuel Level Sensing (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 ADDITIONAL CENTER TANK (A319/A320) (option) ACT System Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 ACT Installation Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 ACT System Controls and Indicating (1) . . . . . . . . . . . . . . . . . . . . . . 64 ACT System Warnings (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 ACT Refuel/Defuel Control Panel (1) . . . . . . . . . . . . . . . . . . . . . . . . 74 ADDITIONAL CENTER TANK (A321) (option) # ACT System Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 # ACT Installation Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . 78 ACT System Controls and Indicating (1) . . . . . . . . . . . . . . . . . . . . . . 80 ACT System Warnings (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 # ACT Refuel/Defuel Control Panel (1) . . . . . . . . . . . . . . . . . . . . . . . 92 ADDITIONAL CENTER TANK (A319CJ) (option) ACT System Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 ACT Installation Presentation (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 ACT System Controls and Indicating (1) . . . . . . . . . . . . . . . . . . . . . . 98 ACT System Warnings (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 ACT Refuel/Defuel Control Panel (1) . . . . . . . . . . . . . . . . . . . . . . . 108 MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL TABLE OF CONTENTS May 11, 2006 Page 1 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 FUEL LEVEL 2 (2) SYSTEM OVERVIEW The A318, A319, and A320 share a common fuel system design. The fuel tanks are integrated into the center fuselage area and the wings. The center tank is a part of the center wing box. The wing tanks are divided into inner cells and outer cells. To reduce the structural load on the wings, the fuel in the outer cells is not used until the fuel load in the inner cells decreases to a low level. Two fuel pumps are installed in the center tank, and two other fuel pumps are installed in each wing tank inner cell. Fuel is supplied to the engines from the center tank first. Once the center tank is empty, fuel is supplied from the wing inner cells. There is no direct feed from the outer cells to the engines. Two inter cell transfer valves allow fuel to transfer from the outer cells to the inner cells when the low level is reached. Two engine Low Pressure (LP) valves are installed to cut off fuel to the engines. The LP valves are closed when the engine is shut down or when the engine FIRE pushbutton is released. A cross feed valve is fitted to connect or isolate the left and right sides. It enables either engine to be fed from any available fuel pump. On the ground, the cross feed valve enables fuel to be transferred from tank to tank. The fuel system also feeds the APU directly from the left side. The APU LP valve is installed to cut off fuel to the APU. It closes when the APU is shut down or when the APU FIRE pushbutton is released out. MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 2 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 SYSTEM OVERVIEW MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 3 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 FUEL LEVEL 2 (2) SYSTEM OVERVIEW (continued) A321 The A321 fuel tanks are integrated into the center fuselage area and the wings. Like the A318/A319/A320, the center tank is part of the center wing box but unlike the A318/A319/A320, the wing tanks are not divided. The tanks are simply called left and right wing tanks. Two fuel pumps are installed in each wing tank. Fuel is supplied to the engines from the wing tanks only. As the fuel level in the wing decreases, the center tank fuel is transferred to the wing tanks until the center tank is empty. The Fuel transfer, from the center tank to the wing tanks, is controlled by transfer valves. The transfer valves supply pressure for two jet pumps. These pumps are located in the center tank and transfer the fuel from the center to the wings. Two engine Low Pressure (LP) valves are installed to cut off fuel to the engines. The LP valves are closed when the engine is shut down or when the engine FIRE pushbutton is released. A cross feed valve is fitted to connect or isolate the left and right sides. It enables either engine to be fed from any available fuel pump. On the ground, the cross feed valve enables fuel to be transferred from tank to tank. The fuel system also feeds the APU directly from the left side. The APU LP valve is installed to cut off fuel to the APU. It closes when the APU is shut down or when the APU FIRE pushbutton is released out. MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 4 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 SYSTEM OVERVIEW - A321 MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 5 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 FUEL LEVEL 2 (2) SERVICING Automatic refueling is controlled by the Fuel Quantity Indicating Computer (FQIC) and may be performed with normal electrical power (External Ground Power or APU) or with battery power. With normal power established, opening the access panel will power up the refuel control panel automatically. To refuel on batteries, select BATT POWER to ON. To begin fueling in the automatic mode after the refuel panel is powered, follow these steps: - perform the Lights (LTS) and High Level (HIGH) test. The high level test verifies the operation of the high-level protection system, which provides protection against overfilling and spillage. - make sure that the REFUEL VALVE switches are in the NORM position - set the Pre-selector to the required total fuel load - set the MODE SELECT to REFUEL There is no refuel valve indicator. The indication that the valve is open is an increase in the fuel quantity. When the refueling is complete, the END light will illuminate. The PRESELECTED and ACTUAL quantities should be equal (± 100 kg.). MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 6 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 [...]... numbers in the table MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 14 U3U06191 - U0O35M0 - UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL MEL/DEACTIVATION - FUEL QTY USING MLI MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 15 SINGLE AISLE TECHNICAL TRAINING MANUAL FUEL LEVEL 2 (2) MEL/DEACTIVATION... data above MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 16 U3U06191 - U0O35M0 - UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL MEL/DEACTIVATION - ALTERNATE METHODS TO DETERMINE A/C ATTITUDE MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 17 SINGLE AISLE TECHNICAL TRAINING MANUAL FUEL LEVEL... SINGLE AISLE TECHNICAL TRAINING MANUAL MULTI-TANK INDICATOR END LIGHT MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL REFUEL/DEFUEL CONTROL PANEL PRESENTATION (1) May 10, 2006 Page 31 SINGLE AISLE TECHNICAL TRAINING MANUAL REFUEL/DEFUEL SYSTEM D/O (3) GENERAL The refuel/defuel system controls the fuel flow into or out of the A/C Automatic refueling, manual refuel, defuel or ground... fuel removed may be tested for water content using a test kit MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 8 U3U06191 - U0O35M0 - UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL DAILY CHECKS - DRAIN WATER CONTENT MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 9 SINGLE AISLE TECHNICAL TRAINING. .. U0O35M0 - UM28D2000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL GENERAL FUEL SUPPLY LOGIC MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL ENGINE FEED SYSTEM D/O (3) May 10, 2006 Page 24 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28D2000000001 This Page Intentionally Left Blank MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL ENGINE FEED SYSTEM D/O... U0O35M0 - UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL SERVICING MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 7 SINGLE AISLE TECHNICAL TRAINING MANUAL FUEL LEVEL 2 (2) DAILY CHECKS Years of operational experience have shown that regular draining of the fuel tank water content will prevent many fuel system problems The Maintenance Planning... U0O35M0 - UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL MEL/DEACTIVATION - MANUAL REFUEL VALVE OPERATION MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 11 SINGLE AISLE TECHNICAL TRAINING MANUAL FUEL LEVEL 2 (2) MEL/DEACTIVATION (continued) U3U06191 - U0O35M0 - UM28BA000000001 USE OF MAGNETIC LEVEL INDICATORS Each fuel tank is equipped with... UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL MEL/DEACTIVATION - USE OF MAGNETIC LEVEL INDICATORS MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 13 SINGLE AISLE TECHNICAL TRAINING MANUAL FUEL LEVEL 2 (2) MEL/DEACTIVATION (continued) FUEL QTY USING MLI Using the attitude reference, and MLI number, and MLI reading, find the correct fuel table in... the APU fuel supply line is shrouded The shroud is connected to a Drain Mast which is located AFT of the MLG Doors MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL APU FEED SYSTEM D/O (3) May 10, 2006 Page 27 U3U06191 - U0O35M0 - UM28D3000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL GENERAL LINE SHROUD AND DRAIN MAST MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL APU... UM28BA000000001 SINGLE AISLE TECHNICAL TRAINING MANUAL MAINTENANCE TIPS MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ME)  28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 19 SINGLE AISLE TECHNICAL TRAINING MANUAL VENTING SYSTEM DESCRIPTION/OPERATION (3) GENERAL via an overpressure protector installed on a tank access panel The center tank overpressure protector relieves fuel into the left inner cell The fuel . 2006 Page 14 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 MEL/DEACTIVATION - FUEL QTY USING MLI MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ ME) 28 - FUEL FUEL LEVEL. kg.). MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 6 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 - U0O35M0 - UM28BA000000001 SERVICING MAINTENANCE. refuel valve with the manual plunger. MAINTENANCE COURSE - M35 LINE MECHANICS (V2500-A5/ ME) 28 - FUEL FUEL LEVEL 2 (2) May 10, 2006 Page 10 SINGLE AISLE TECHNICAL TRAINING MANUAL U3U06191 -