ATA 00-03 TSM

ATA Spec. 104 Level 3

Book No: ALL A319/320/321 00-03 LEVEL 3 E

Lufthansa

Lufthansa Base

Issue: JAN. 1998For Training Purposes Only

Lufthansa 1995Technical Training GmbH

Training ManualA 319/320/321

ATA 00-03Trouble Shooting (TSM)Line & Base Maintenance

For training purposes and internal use only.

Copyright by Lufthansa Technical Training GmbH.

All rights reserved. No parts of this trainingmanual may be sold or reproduced in any formwithout permission of:

Lufthansa Technical Training GmbH

Lufthansa Base Frankfurt

D-60546 Frankfurt/Main

Tel. +49 69 / 696 41 78

Fax +49 69 / 696 63 84

Lufthansa Base Hamburg

Weg beim Jäger 193

D-22335 Hamburg

Tel. +49 40 / 5070 24 13

Fax +49 40 / 5070 47 46

TABLE OF CONTENTS

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ATA 00 TROUBLE SHOOTING 1. . . . . . . . . . . . . . . .

INTRODUCTION 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MAINTENANCE PHILOSOPHY 2. . . . . . . . . . . . . . . . . . . . .

TROUBLE SHOOTING MANUAL (TSM) 4. . . . . . . . . . . . . . . . . . . . . . . . GENERAL USE OF THE TSM 4. . . . . . . . . . . . . . . . . . . . . . . INDEX OF WARNINGS/MALFUNCTIONS (I-W/M) 6. . . . . INDEX OF CFDS FAULT MESSAGES (I-CFDS) 10. . . . . . . INTRODUCTION (INTRO) 14. . . . . . . . . . . . . . . . . . . . . . . . . . STANDARD ATA CHAPTERS (21....80) 16. . . . . . . . . . . . . . .

TABLE OF FIGURES

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Figure 1 Post Flight Report (PFR) Example 3. . . . . . . . . . . . . . . . . . . Figure 2 Intentionally left blank 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3 TSM Index of Warnings/Malfunctions 7. . . . . . . . . . . . . . . . Figure 4 I-ECAM Page (Example) 9. . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 5 TSM Index of CMS Fault Messages 11. . . . . . . . . . . . . . . . . Figure 6 I-CMS Page (Example) 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 7 TSM INTRO Table of Contents 15. . . . . . . . . . . . . . . . . . . . . . Figure 8 TSM ATA Chapter Table of Contents 17. . . . . . . . . . . . . . . . . Figure 9 TSM Fault Symptoms (Page Block 101) 19. . . . . . . . . . . . . . Figure 10 TSM Fault Symptom Page (Example) 21. . . . . . . . . . . . . . . Figure 11 TSM Fault Isolation Procedures (Page Block 201) 23. . . . Figure 12 TSM Block Diagrams (Page Block 301) 25. . . . . . . . . . . . .

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TROUBLE SHOOTINGIntroduction

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ATA 00 TROUBLE SHOOTING

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INTRODUCTION

MAINTENANCE PHILOSOPHY

GeneralEntry in trouble shooting process is required,when a fault is reported by theflight crew.(warnings/malfunctions)As the CFDS (Centralized Fault Display System ) is the main aid for trouble-shooting, the line mechanic has to verify in the PFR ( POST FLIGHT REPORT)

if a fault message is correlated to the reported warning/malfunction. This cor-relation constitutes the fault symptom.A back-up of the printed PFR is available on the MCDU (multipurpose control/display unit) in form of the Last Leg Report and Last Leg ECAM Report. Itshould only be used if the printed PFR is not available as the presentation isnot so friendly.Other reports in the log book, resulting from EIS flags, ECAM SD advisories,local indications or crew observations require an immediate usage of the TSM(Trouble Shooting Manual).In the following the use of the TSM is described. This includes the descriptionof the layout of the TSM.The philosophy of the troubleshooting manual is to guide the trouble shooterfrom a reported fault ( log book entry, CFDS post flight report, ECAM status,crew observations ) to a correct procedure to isolate the fault.

Post Flight Report (PFR) ExampleFor example, there has been made the following entry in the log book:”VENT EXTRACT FAULT”.A copy of the POST FLIGHT REPORT printout is shown on the following page( FIGURE 1 ).In the part ECAM WARNING MESSAGES you can find conformity with theentry of the log book.A correlation between the ECAM message and a FAILURE message, send bythe system BITE of the corresponding system computer, is also possible.The correlation will be done by comparing the ATA chapter and the time (GMT)from ECAM message and FAILURE message. They must correspond.

When you can find a corresponding FAILURE message, you have to report itthe log book ( ACTION field ).When there is no FAILURE message in the PFR, you have to report in the logbook:”No CFDS Failure message”.If you use ATA 2126 and the time 1712 in the part ECAM WARNING MES-SAGES as a reference, you will find in the part FAILURE MESSAGES ATA212651 and also the time 1712. The associated FAILURE message runs: ”EXTRACT FAN 18HQ”.Next step of trouble shooting :Confirmation of the ECAM/FAILURE messages.Normally the confirmation is done by a test .Because there are several tests possible for different systems, you have to gofirst to the TSM to find out, which one is the right one.

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Seite: Page: 3FRA US/E wd 12.10.95 Page: 3Figure 1 Post Flight Report (PFR) Example

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TROUBLE SHOOTINGTROUBLE SHOOTING MANUAL

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TROUBLE SHOOTING MANUAL (TSM)

GENERAL USE OF THE TSM

ContentsBefore we will continue with the trouble shooting example, the layout of theTSM shall be described.

The layout of the TSM is as followed:� Index of Warnings/Malfunctions (I-W/M) (I-ECAM, I-EFIS, I-LOCAL,

I-OBSV)� Index of CMS Fault Messages (I-CMS)� Introduction (00-INTRO)� Standard ATA Chapters

- Table of Contents- ATA Chapter (CH)-Section (SE)-Sub Section (SU)

� Fault Symptoms (Page Block 101 --> Page 101 bis 199)� Fault Isolation Procedures (Page Block 201 --> Page 201 bis 299)� Block Diagrams (Page Block 301 --> Page 301 bis 399)

The contents of the several paragraphs (sections) will be described in the fol-lowing pages.The given troubleshooting example is shown as a red guideline.If the number of pages is over 100 the page block continues with A, B, Cetc.(A101, or A201).

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Page4FRA US/E wd 12.10.95 Page: 5Figure 2 Intentionally left blank

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INDEX OF WARNINGS/MALFUNCTIONS (I-W/M)This part of the TSM contains a list of the following:� I-ECAM (ECAM)

- EWD Warning(s)- STS-Maintenance (SD)- SD-Flag(s)- SD-Advisory(ies)

� I-EFIS (EFIS)- PFD-Flag(s)- ND-Flag(s)

� I-LOCAL(Local Warnings/Cautions)� I-OBSV (Observations / Crew/Maintenance)

In the particular groups the informations are alphabetically sorted.For the troubleshooting the I-W/M serves as an introduction to the TSM, be-cause you can see whether the warning message from the CFDS PFR(PostFlight Report) and /or the message from the log book is covered in the TSM ornot.With the information of the ATA chapter and part in the page block 101 (e.g.22-ECAM) in the I-W/M the further way of troubleshooting in the TSM Stan-dard ATA chapters is determined.The example in figure 3 is described in the TSM chapter 00-INTRO.For our example select the next pages.ATTENTION!The ATA chapter on the Post Flight Report (PFR) must not necessary be thesame as in the TSM (TSM ATA). For example:AUTO FLT A/THR OFF...........22-00 (PFR ATA) 22-ECAM or 77-ECAM (TSM ATA, PB 101)

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INDEX OF WARNINGS/MALFUNCTIONS (I-W/M) (CONT.)

ExampleIn the Index of Warnings/Malfunctions part I-ECAM you can find the informa-tion of the cockpit effects in our PFR-example (figure 1, page 3) as follows:

VENT EXTRACT FAULT

So the warning message is covered in the TSM.Informations for further trouble shooting is given in column 3 (TSM ATA CH-PB101):Go to ATA chapter 21 part ECAM in page block 101 (21-ECAM).

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INDEX OF CFDS FAULT MESSAGES (I-CFDS)This part of the TSM contains a list of all FAULT messages of all the systemBITE‘s.The list is sorted alphabetically.Each index is broken down into five columns:� column 1: Fault messages (CFDS message)� column 2: ATA reference according to the PFR� column 3: Source of the fault message� column 4: Failure class� column 5: Reference to the TSM ATA chapter part Fault Symptoms (Page

Block 101), where the further trouble shooting is described.For troubleshooting the I-CMS also serves as an entry point as the I-W/M be-fore.Here you can see whether the FAULT message from the CFDS PFR is cov-ered in the TSM or not.The example in figure 5 is described in the TSM chapter 00-INTRO.For our trouble shooting example select the next pages.

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INDEX OF CFDS FAULT MESSAGES (I-CFDS) (CONT.)

ExampleFor our trouble shooting example you can find the FAULT message (part FAIL-URE MESSAGES in the PFR, figure 1, page 3) in the I-CFDS:

EXTRACT FAN 18HQ

Also the fault message is covered in the TSM.With the information of the ATA chapter and the part in page block 101 in theI-CFDS, column 5 (CH-PB 101), the further way for trouble shooting in theTSM standard ATA chapters is determined:Go to ATA chapter 21 part ECAM in page block 101 (21-ECAM).

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INTRODUCTION (INTRO)The introduction describes the purpose of the TSM and gives informations forthe usage of the TSM and the CFDS e.t.c.The table of contents of the INTRO is shown on the next page (Figure 7).

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STANDARD ATA CHAPTERS (21....80)

GeneralAfter you have confirmed, that the pilots report (log book) and /or a correlatingFAULT message are covered in the TSM, you go to the specific ATA chap-ter.(Example: CHAPTER 21)Each ATA chapter contains a table of contents(see Figure 8).Each chapter begins with the page block 101 (Fault Symptoms), broken downin the same way as we have seen it before in the indexes:� 21-ECAM� XX-EFIS (where available)� 21-LOCAL� 21-OBSV� 21-CFDS

After this the ATA chapter is broken down into sections (SE) and sub-sections(SU), including:� Fault Isolation Procedures (page block 201)� Block Diagrams (page block 301).

For each chapter the structure is the same.Corresponding to the data in the Post Flight Report (PFR), page block 101(Fault Symptoms) will be selected first.

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STANDARD ATA CHAPTERS (CONT.)

Fault Symptoms (Page Block 101)ATA Page Block 101 (page 101....199,or A101...A199 etc.) contains all warn-ings/malfunctions and the corresponding CFDS fault messages, that are avail-able for the ATA chapter.In the column CFDS FAULT MESSAGES following data are listed:� SOURCE (source of the message)� MESSAGE (Fault message)� IDENT(identifiers,systems that are influenced by the failure)� ATA (ATA Chapter)� C (Failure Class)

In some cases the IDENTIFIERS included in the PFR has to be considered, tofind the correct FAULT ISOLATION PROCEDURE TASK.In the column FAULT ISOLATION PROCEDURE there is shown the fault isola-tion procedure number, called TASK number. This is the entry point for furtherfault isolation.These task numbers belong to the AMTOSS (Aircraft Mainte-nance Task Oriented Support System).All maintenance actions (routine /non-routine) are described in different docu-ments under task /sub-task numbers.With the TASK number you will find the fault isolation procedure in page block201.The example in figure 9 is described in the TSM chapter 00-INTRO.For our trouble shooting example select the next pages.

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Fault Symptoms (Page Block 101) (Cont.)

ExampleWith the TASK number in the FAULT ISOLATION PROCEDURE column ofpage block 101 you will find the fault isolation procedure in page block 201.For the trouble shooting example the task number is: 212600 T810 810which can be found in chapter 21, section 26, sub-section 00, page221(212600 P221).

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Fault Isolation Procedures (Page Block 201)To comply with technical requirements and maintenance task requirements, theinvariable structure of Page Block201 (Page 201-299) is as follows:� Possible Causes� Job Set-up Information� Fault Confirmation� Fault Isolation� Close-Up

After selecting the ATA chapter (in the exercise: 21-26-00), you get to the spe-cific fault isolation procedure by the task number(in the exercise:.....-810-810), or Page 221.4. Possible Causes

Shows all the LRU(s) that might be replaced during the fault isolation pro-cedure. Suspect wiring ,pipes , coaxial cables etc ...are also shown.

5. Job Set-up InformationGives a reference to documents(AMM, ASM etc...), where you can find thetasks that must be done, before the trouble shooting procedure can bestarted.

6. Fault ConfirmationIn order to prevent unjustified troubleshooting, the fault should be confirmed(when possible) prior to troubleshoot the system. The fault can be con-firmed by BITE tests, operational tests or functional tests.

7. Fault IsolationWhen a fault is confirmed, you have to follow the fault isolation procedurethat is described in this section. After performing the fault isolation proce-dure you should do a test, to check correct operation.

8. Close-UpDepending on the fault confirmation and /or fault isolation, a close-up pro-cedure may be necessary in order to put the aircraft back to its initial con-figuration.

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Block Diagrams (Page Block 301)Page Block 301 (Page 301 to 399) contains Block Diagrams and/or Schemat-ics, providing the troubleshooter with a logical understanding of system or sub-system.For our example there is no Page Block 301 available. So we selected an ex-ample out of the section 21-28.

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Documents

ATA 00-03 TSM