18-Braking.Ppt

Operational Liaison Meeting – Fly-By-Wire aircraft 2004

Summary of Braking Recommendations in the SOP

Customer Services INTRODUCTION

BRAKING RECOMMENDATIONS In the Standard Operating Procedures (SOP)

WHERE ? WHAT ? WHY ? y document.

PRELIMINARY COCKPIT PREPARATION

COCKPIT PREPARATION

BEFORE PUSHBACK OR START

TAXI BEFORE TAKEOFF

APPROACH

LANDING

AFTER LANDING

PARKING

SECURING THE AIRCRAFT y document.

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSHBACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT –PARKING BRAKE ……….ON PREPARATION –ACCU PRESS & BRAKE PRESS indicators…..CHECK COCKPIT PREPARATION BEFORE Ø The ACCU PRESS indication PUSH BACK must be in the Green band. OR START TAXI

BEFORE TAKEOFF ØIf not, recharge the accumulator using the APPROACH YELLOW electric pump (SA aircraft), or LANDING the BLUE electric pump (LR aircraft). y document. AFTER LANDING WARNING: PARKING Obtain ground crew clearance SECURING BEFORE using the electric pump THE AIRCRAFT

PRELIMINARY COCKPIT Objective: Check for absence of “spongy pedals” PREPARATION COCKPIT PREPARATION AUXILLARY LP DISTRIBUTION LINE BDDV BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH ØOnly performed before the first flight of the day LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT Single-Aisle aircraft A340-500/600 PREPARATION With BSCS EM² aircraft COCKPIT PREPARATION BEFORE PUSH BACK ABCU EBCU OR START No Auxiliary LP Distribution Line TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING ALTERNATE BRAKING SYSTEM CHECK PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT - Y ELEC PUMP………..CHECK OFF PREPARATION Ø For SA aircraft only. COCKPIT PREPARATION Ø Ensures GREEN hydraulic system is not BEFORE pressurized via the PTU. PUSH BACK Ø Normal braking system is not available. OR START TAXI - CHOCKS……………....CHECK IN PLACE

BEFORE - PARKING BRAKE…….OFF TAKEOFF - BRAKE PEDALS ……..PRESS APPROACH - BRAKE PRESSURE….CHECK LANDING y document. AFTER LANDING PARKING If unsuccessful, maintenance

SECURING action is due. THE AIRCRAFT

PRELIMINARY COCKPIT - PARKING BRAKE…….. ON PREPARATION COCKPIT Ø To enable the flight crew to check brake wear PREPARATION indicators during the exterior inspection. BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT –PARKING BRAKE……..ON THEN OFF PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT –PARKING BRAKE……..ON THEN OFF PREPARATION ØTo check parking brake pressure COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT –PARKING BRAKE……..ON THEN OFF PREPARATION ØTo check parking brake pressure COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER If chocks are in place, release the parking brake LANDING to increase brake cooling during transit. PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT – PARKING BRAKE ACCU PRESS…..CHECK PREPARATION COCKPIT PREPARATION ØThe ACCU PRESS indication must be in the Green band. BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH Ø To ensure parking brake availability, in case LANDING emergency braking is required during pushback

y document. due to a broken towbar. AFTER LANDING PARKING Do NOT use brakes during pushback,

SECURING unless required due to an emergency THE AIRCRAFT

PRELIMINARY COCKPIT •If during engine start, the aircraft starts PREPARATION COCKPIT moving with parking brake ON: PREPARATION – PARKING BRAKE…..OFF BEFORE – BRAKE PEDALS……PRESS PUSH BACK OR START TAXI ØFor only A320 Family without new pressure BEFORE TAKEOFF switch (Mod 30062 – SB A320-32-1201), APPROACH braking via pedals is not possible while the parking brake is ON. LANDING y document. AFTER LANDING ØHowever, there is one single procedure in the PARKING SOP for all aircraft types, to cover Mixed Fleet SECURING cases. THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT – PARKING BRAKE…………….OFF PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT – PARKING BRAKE…………….OFF PREPARATION Ø Check that brake pressure is zero COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING For the A340-500/600 aircraft: y document. AFTER If the brake pedals are pressed, before releasing the LANDING parking brake, alternate braking remains active. PARKING Ø Alternate pressure is displayed until pedals are released. SECURING THE AIRCRAFT Ø Corrected via the BSCU S3B Standard (MOD 52465)

PRELIMINARY COCKPIT – BRAKES………………………………..CHECK PREPARATION COCKPIT PREPARATION ØOnce the aircraft starts moving: BEFORE – Check normal braking efficiency PUSH BACK OR START – Check that GREEN pressure has taken over TAXI the YELLOW (SA aircraft) pressure, or the BLUE (LR aircraft) pressure. BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

GREEN BLUE HP (A330/A340) or YELLOW NORM BRK (A320) HP If no braking order SEL VALVE

SHUTTLE VALVE Closed AUXILLARY LP DISTRIBUTION LINE BDDV To other gear

NORMAL ALTERNATE y document. SERVO SERVO WHEEL VALVE VALVE

T BSCU A C H

GREEN BLUE HP (A330/A340) or YELLOW NORM BRK (A320) HP SEL VALVE Brake pedals pressed

SHUTTLE No pressure VALVE Regulates AUXILLARY LP DISTRIBUTION LINE BDDV according to To other pedal position gear

NORMAL ALTERNATE y document. SERVO SERVO WHEEL VALVE VALVE

T BSCU A C H

BEFORE TAKEOFF Ø“Spongy” pedals indicate degraded performance APPROACH of the alternate braking system. LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

BEFORE TAKEOFF APPROACH Ø“Spongy” pedals indicate a degraded performance LANDING of the alternate braking system. y document. AFTER LANDING PARKING NOT APPLICABLE to A340-500/600 or single-

SECURING aisle aircraft with the BSCS EM² Standard THE AIRCRAFT

GREEN HP BLUE (A340-500/600) or YELLOW (A320) HP NORM BRK SEL VALVE

ALTN BRK SEL VALVE

ALTN Always closed, when SERVO normal braking is VALVE available BSCU NORMAL y document. SERVO WHEELS VALVE or

T A C ABCU or EBCU H

PRELIMINARY COCKPIT – BRAKES………………………………..CHECK PREPARATION ØDo not “ride” the brakes, to reduce brake wear. COCKPIT PREPARATION ØIf an arc is displayed on the ECAM wheel BEFORE page, above the brake temperature, set PUSH BACK OR START the brake FANS ON: TAXI èTo reduce brake wear.

èTo ensure maximum energy will be Messiersustained, - Bugatti in BEFORE Wear TAKEOFF rate case of a rejected takeoff. Honeywell-ALS APPROACH

LANDING BF Goodrich y document. AFTER LANDING PARKING 0 80 150 250 315 500 SECURING Indicated temperature ° C THE AIRCRAFT

BEFORE èTo ensure maximum energy will be sustained, TAKEOFF in case of a rejected takeoff. APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION A340-500/600 Other COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH ØEnhances safety, in case of a rejected takeoff.

LANDING

y document. Perform the flight control check before arming the AFTER Ø LANDING autobrake: PARKING ØTo check that ground spoilers are not extended

SECURING èTo prevent autobrake activation when armed. THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY Max COCKPIT brake PREPARATION Brake type temp for COCKPIT PREPARATION takeoff BEFORE PUSH BACK ABS OR START (SA aircraft 260°C TAXI only) BEFORE TAKEOFF APPROACH OTHER 300°C LANDING y document. AFTER LANDING PARKING Prevents hydraulic fluid ignition in the main SECURING THE AIRCRAFT landing gear bay, in the event of a fluid leak.

PRELIMINARY Max Displayed COCKPIT brake PREPARATION Brake type Brake Fans brake Monitoring temp for COCKPIT temp PREPARATION takeoff BEFORE Not installed ABS ECAM PUSH BACK Or OFF OR START (SA aircraft 260°C “ BRAKES TAXI only) ON HOT ” BEFORE TAKEOFF Not installed ECAM APPROACH Or OFF “ BRAKES OTHER 300°C HOT ” LANDING Flight y document. AFTER ON Crew LANDING PARKING Prevents hydraulic fluid ignition in the main landing SECURING THE AIRCRAFT gear bay, in the event of a fluid leak.

PRELIMINARY COCKPIT PREPARATION COCKPIT è Do not takeoff, in case of: PREPARATION è BEFORE “BRAKES HOT” ECAM Caution, or PUSH BACK OR START èBrake temp> 150°C with the brake fans ON, TAXI and no ABS brakes BEFORE TAKEOFF APPROACH è Do not takeoff with the brake fans ON, LANDING to avoid brake fan damage caused by debris. y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT • AUTOBRAKE………………. AS REQUIRED PREPARATION COCKPIT PREPARATION • Use of the autobrake is recommended to: BEFORE PUSH BACK OR START ØOptimize the deceleration rate TAXI BEFORE ØEnsure single brake application TAKEOFF APPROACH èReduce carbon brake wear LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT AUTOBRAKE MODE PREPARATION COCKPIT A340- OTHER PREPARATION 500/600 BEFORE CONDITION PUSH BACK OR START TAXI

BEFORE TAKEOFF LO, 2 or 3 LO Long and dry runways APPROACH LANDING 4 MED Short or contaminated runways y document. AFTER LANDING MAX Not recommended for landing PARKING In some emergency or short SECURING HI THE AIRCRAFT runway situations

PRELIMINARY COCKPIT AUTOBRAKE MODE PREPARATION COCKPIT A340- OTHERTEMPORARY REVISION: PREPARATION 500/600 CONDITION BEFORE On wet or contaminated runways, use PUSH BACK OR START manual braking and maximum reverse. TAXI è Cancelled by BSCU S3B Standard BEFORE TAKEOFF LO, 2 or 3 LO Long and dry runways APPROACH LANDING 4 MED Short or contaminated runways y document. AFTER LANDING MAX Not recommended for landing PARKING In some emergency or short SECURING HI THE AIRCRAFT runway situations

PRELIMINARY COCKPIT • WHEN LANDING GEAR IS DOWN: PREPARATION – ECAM WHEEL PAGE ……………….CHECK COCKPIT PREPARATION BEFORE ØCheck residual PUSH BACK braking on the triple OR START indicator TAXI

BEFORE TAKEOFF APPROACH YES LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT • WHEN LANDING GEAR IS DOWN: PREPARATION – ECAM WHEEL PAGE ……………….CHECK COCKPIT PREPARATION BEFORE WithØCheck A330 residual FWC K7, PUSH BACK braking on the triple OR START and indicator TAXI A340-500/600 FWC W3: BEFORE TAKEOFF “RESIDUAL BRAKING” APPROACH ECAMYES alert LANDING not inhibited in flight y document. AFTER LANDING PARKING BRAKES RESIDUAL BRAKING

SECURING • RESIDUAL BRKG PROC…….APPLY THE AIRCRAFT

PRELIMINARY COCKPIT • WHEN LANDING GEAR IS DOWN: PREPARATION – ECAM WHEEL PAGE ……………….CHECK COCKPIT PREPARATION BEFORE •With A340 FWC L10, PUSH BACK “RESIDUAL BRAKING” OR START procedure displayed on TAXI ECAM BEFORE TAKEOFF APPROACH •Will be introduced in: LANDING y document. AFTER -A330 FWC K8 LANDING -A340-500/600 FWC W4 PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT • BRAKES………………………..AS REQUIRED PREPARATION Ø Monitor the autobrake COCKPIT PREPARATION BEFORE A340-500/600 Other PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING ØWhen required, brake with pedals. y document. AFTER LANDING • Before 20 knots: PARKING – AUTO BRK………………………..DISENGAGE SECURING THE AIRCRAFT ØTo prevent brake jerks at low speed.

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT –BRAKE TEMPERATURE………….CHECK PREPARATION ØCheck for discrepancies and high temperature COCKPIT PREPARATION ØSelect brake fans: BEFORE q At least 5 minutes after the temperature check to: PUSH BACK OR START èAllow thermal equalization and stabilization TAXI èAvoid oxidation of brake surface hot spots

BEFORE TAKEOFF q Just before stopping at the gate, to: APPROACH è Prevent carbon dust from being blown over LANDING ground personnel y document. AFTER LANDING However, when turnaround time is short, or PARKING brake temperatures are likely to exceed SECURING THE AIRCRAFT 500°C (ABS: 350°C): Use brake fans

PRELIMINARY COCKPIT –BRAKE TEMPERATURE………….CHECK PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI Refer to the FCOM 3.04.32 for BEFORE brake temperature limitations TAKEOFF APPROACH requiring maintenance action

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT – PARKING BRAKE ACCU PRESS………CHECK PREPARATION COCKPIT PREPARATION ØThe ACCU PRESS indication BEFORE PUSH BACK must be in the Green band. OR START TAXI

BEFORE TAKEOFF APPROACH ØIf not, chocks are required before:

LANDING ØENG 1 shutdown (A320 FAM) y document. AFTER ØENG 1 and 2 shutdown (A330) LANDING ØENG 1 and 4 shutdown (A340) PARKING èTo ensure Green Hydraulic pressure/ SECURING THE AIRCRAFT normal braking availability

PRELIMINARY COCKPIT – PARKING BRAKE…………..……ON PREPARATION COCKPIT PREPARATION ØIf the brake temperature is above 500°C (350°C with BEFORE PUSH BACK OR START the Brake Fans ON, and for non ABS brakes), TAXI and unless operationally necessary: BEFORE TAKEOFF – Avoid applying the parking brake APPROACH

LANDING èTo prevent brake damage y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT • After shutting down the engines, and PREPARATION checking that the chocks are in place: COCKPIT – PARKING BRAKE…………..……AS RQRD PREPARATION BEFORE PUSH BACK OR START ØIf the brake temperature is above 300°C (150°C with TAXI the Brake Fans ON, and for non ABS brakes), BEFORE TAKEOFF and unless operationally necessary: APPROACH – Avoid applying the parking brake LANDING y document. AFTER èTo prevent brake damage, due to brake LANDING PARKING application for an extended period of time, SECURING and at high temperatures. THE AIRCRAFT

PRELIMINARY COCKPIT PREPARATION COCKPIT PREPARATION BEFORE PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

PRELIMINARY COCKPIT – PARKING BRAKE……………CHECK ON PREPARATION COCKPIT PREPARATION ØTo reduce the hydraulic leak rate BEFORE in the brake accumulator PUSH BACK OR START TAXI

BEFORE TAKEOFF APPROACH

LANDING y document. AFTER LANDING PARKING

SECURING THE AIRCRAFT

• This presentation is designed to provide our recommendations for the standard operation of braking systems.

• These recommendations take the following aspects into account:

1. SAFETY 2. COST-EFFECTIVENESS y document.

© AIRBUS S.A.S. All rights reserved. Confidential and proprietar Summary of Braking Recommendations in the SOP Page 51 This document and all information contained herein is the sole property of AIRBUS S.A.S. No intellectual property rights are granted by the delivery of this document or the disclosure of its content. This document shall not be reproduced or disclosed to a third party without the express written consent of AIRBUS S.A.S. This document and its content shall not be used for any purpose other than that for which it is supplied.

The statements made herein do not constitute an offer. They are based on the mentioned assumptions and are expressed in good faith. Where the supporting grounds for these statements are not shown, AIRBUS S.A.S. will be pleased to explain the basis thereof. y document.

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