SERVICE BULLETIN ATR42

SERVICE BULLETIN ATR42

Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page TS-1 of TS-2

TRANSMITTAL SHEET

Original issue

This page transmits Original issue of Service Bulletin No. ATR42-53-0151.

General information concerning this document is available in Service Letter No. ATR42-00-5009.

TITLE: Fuselage - Inspection of seat tracks

ATR. All rights reserved. Confidential and proprietary document. This document shall not be reproduced or disclosed to a third party without the written consent of ATR. This document and its content shall not be used for any purpose other than that for which it is supplied. ATR, its logo, the distinctive ATR aircraft profiles and patented information relating to the ATR aircraft are the exclusive property of ATR and are subject to copyright. This document and all information contained herein are the sole property of ATR. No intellectual property right is granted through, or induced by, the delivery of this document or the disclosure of its content.


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151

Page TS-2 of TS-2 ATR. All rights reserved. Confidential and proprietary document.

1 – TABLE OF CONTENTS

TRANSMITTAL SHEET ................................................................................. Page TS-1 to TS-2

ACCOMPLISHMENT REPORT ..................................................................... Page AR-1 to AR-2

PLANNING INFORMATION ............................................................................. Page PI-1 to PI-5

MATERIAL INFORMATION ............................................................................ Page MI-1 to MI-3

ACCOMPLISHMENT INSTRUCTIONS ............................................................ Page AI-1 to AI-6

TYPE DESIGN RECOVERING ...................................................................... Page TR-1 to TR-2

ILLUSTRATIONS .............................................................................................. Page IL-1 to IL-7

2 – REVISION SEQUENCES

Issue or Revision Date Additional work Original issue Feb 20/20 -


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page AR-1

ATR. All rights reserved. Confidential and proprietary document.

ACCOMPLISHMENT REPORT SERVICE BULLETIN No. ATR42-53-0151

Original issue


Send this report to: ATR RETROFIT ENGINEERING 1 ALLEE PIERRE NADOT 31712 BLAGNAC CEDEX FRANCE phone : +33 (0)5 62 21 62 21 fax : +33 (0)5 62 21 69 41 e-mail : [email protected]

Aircraft identification

Aircraft MSN (on which this Service Bulletin has been accomplished):

Aircraft registration number:

Flight cycles:

Flight hours:

Accomplishment date of this Service Bulletin:


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page AR-2


Inspection results:

Remarks:

Maintenance organisation identification

Maintenance organisation name:

Name & Signature:

Date:


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page PI-1


COMPLIANCE: RECOMMENDED INSPECTION: 010/2019


1. PLANNING INFORMATION

A. EFFECTIVITY

(1) Aircraft models

ATR42-200 ATR42-300 ATR42-320 ATR42-400 ATR42-500

NO YES YES YES YES

(2) Aircraft

MSN Kit(s)

363, 366, 368, 374, 376, 378, 380, 384, 388, 390, 392, 394, 397, 400, 403, 406, 409, 412, 415, 443, 445, 457, 462, 466, 474, 480, 484, 487, 490, 491, 495, 497, 500, 501, 502, 503, 504, 507, 510, 513, 514, 515, 516, 518, 520, 524, 528, 530, 532, 534, 537, 539, 542, 544, 546, 549, 551, 554, 556, 559, 561, 564, 566, 569, 571, 574, 576, 579, 581, 584, 586, 589, 591, 594, 596, 599, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 625, 627, 629, 631, 633, 637, 639, 641, 643, 645, 647, 649, 651, 653, 655, 657, 659, 661, 665, 667, 669, 671, 673, 675, 689, 691, 693, 695, 800, 801, 802, 803, 804, 807, 815, 819, 823, 827, 831, 835, 839, 844, 849, 854, 859, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1016, 1017, 1018, 1019, 1201, 1202, 1203, 1204,

None




MSN (continued) Kit(s)

1205, 1206, 1207, 1208, 1209, 1210, 1211, 1212, 1213, 1214, 1215, 1216, 1217, 1218, 1219, 1401, 1402, 1403, 1404, 1405, 1406, 1407, 1408, 1409, 1410, 1411, 1412, 1413, 1414, 1415, 1416, 1417, 1418

None

For each aircraft MSN, operator should order the mentioned kit(s). Other parts or equipment could be required for embodiment of this Service Bulletin. Please refer to chapter "MATERIAL INFORMATION" for details.

(3) Spares

The following stock items are modifiable (or not) according to the table below.

None.

B. REASON

Difficulties were encountered during the installation of the seats in Final Assembly Line. After investigation some passenger seat tracks have been found out of tolerances.

The defect identified is a lateral shift of the machining axis of the recesses.

This condition, if not detected and corrected, could lead to installation failure to perform its intended function during emergency landing phases and may result in potential serious injuries to passengers.

Accomplishment of this Service Bulletin consists in inspecting the seat tracks and in locally or entirely replacing seat tracks, depending on inspection results.

COMPLIANCE: Accomplishment of this Service Bulletin is recommended by ATR.




C. INSPECTION AND TYPE DESIGN RECOVERING FLOWCHART

The following flowchart presents the work to be done in a simplified way, details are described in paragraphs "ACCOMPLISHMENT INSTRUCTIONS" and "TYPE DESIGN RECOVERING".

NO

NO

YES

No further action regarding

inspection and type design recovering

Use recess tool P/N 98S53005036100

Use ligament tool P/N 98S53005036101

Inspection of seat tracks with tools P/N 98S53005036000

Test succeeded

Mark incorrect ligaments and replace seat track section as per SRM

or contact ATR

for entire seat track replacement

Test succeeded

YES




D. APPROVAL

The technical content of this document is approved under the authority of DOA ref. EASA.21J.044.

E. MANPOWER

(1) Valid for aircraft model 42-300 and 42-320:

Minimum Manhours (1) Maximum Manhours (2)

Mechanic 6 18

Electrician None None

Total manhours 6 18 Elapsed time (hours) 3 9

(1) For inspection only (2) For inspection and type design recovering

(2) Valid for aircraft model 42-400 and 42-500:

Minimum Manhours (1) Maximum Manhours (2)

Mechanic 10 72

Electrician None None

Total manhours 10 72 Elapsed time (hours) 5 36

(1) For inspection only (2) For inspection and type design recovering

The above estimates are only provided for general guidance in operator's modification planning.

NOTE: This Service Bulletin assumes that the aircraft has been placed in the appropriate maintenance configuration. The manhours/elapsed time estimates do not include preparation for the inspection, non-productive elapsed time or administrative functions.




F. WEIGHT AND BALANCE

None.

G. REFERENCES

The following publications have to be used during accomplishment of this Service Bulletin:

AMM (JIC) : 24-40-00 EAD 10000 25-21-21 RAI 10000

SRM : 51-35-00

53-00-00

H. AFFECTED PUBLICATIONS

(1) Maintenance documentation

None.

(2) Operational documentation

None.


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page MI-1


2. MATERIAL INFORMATION

A. MATERIAL - COST AND AVAILABILITY

None.

B. LIST OF COMPONENTS

None.

C. LIST OF MATERIALS - OPERATOR SUPPLIED

Item Description Reference SRM 51-35-00

Qty per aircraft

6 Thixoflex orange 50cc TF2219-50 05-113 As required

or

6 Thixoflex orange 200cc TF2219-200 05-113 As required

or

6 Self levelling green 50cc HT3326-5FR50 09-044B As required

or


7 Self levelling green 50cc HT3326-5-50 09-044A As required

or

7 Self levelling green 200cc HT3326-5-200 09-044A As required

or


or




Item Description Reference SRM 51-35-00

Qty per aircraft


NOTE: The above materials can be procured by means of a spares purchase order and is necessary only if it has been removed during this inspection.

D. SPECIAL TOOLS

Accomplishment of this Service Bulletin requires use of the following special tools:

Part Number Qty Description 98S53005036100* 1 Inspection tool

98S53005036101* 1 Inspection tool

* These two special tools are delivered through P/N 98S53005036000.

Operator should place a purchase order to the ATR center it is related to, according to its operational area, at the following addresses:

ATR CUSTOMER SERVICES SPARES SUPPORT 1 ALLEE PIERRE NADOT 31712 BLAGNAC CEDEX FRANCE e-mail : [email protected]

ATR Americas, Inc. 4355 NW 36th St. Miami Springs, FL 33166 USA phone : +1 (305) 704 9809 fax : +1 (305) 704 9806 e-mail : [email protected]




ATR EASTERN SUPPORT Pte Ltd. 51 CHANGI BUSINESS PARK CENTRAL 2 #08-02 THE SIGNATURE SINGAPORE 486066 phone : +65 6542 0122 fax : +65 6542 1047 e-mail : [email protected]


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page AI-1


3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL

The following instructions assume that work will be accomplished when the aircraft is in the appropriate maintenance configuration.

B. JOB SET-UP

(1) De-energize the aircraft electrical network and connect the aircraft to ground as per AMM (JIC) 24-40-00 EAD 10000.

(2) Valid for aircraft model 42-300 and 42-320, in zones 222 and 232, RH side, remove passenger seats as per AMM (JIC) 25-21-21 RAI 10000.

(3) Valid for aircraft model 42-400 and 42-500, in zones 221, 222, 231 and 232, LH and RH side, remove passenger seats as per AMM (JIC) 25-21-21 RAI 10000.

(4) In addition to all removed parts mentioned above, record the position and identify all possible parts installed on the seat tracks to be inspected and remove them.

C. INSPECTION

NOTE: During accomplishment of this Service Bulletin, fill the enclosed Accomplishment Report and send it to the address mentioned on the Accomplishment Report.

CAUTION: PAY ATTENTION DURING SEAT TRACK SEALANT REMOVAL NOT TO DAMAGE PROTECTION AND NOT TO CAUSE ACCIDENTAL SCRATCHES. CLEAN DRAIN HOLES AS NECESSARY.

(1) Valid for aircraft model 42-300 and 42-320, in zones 222 and 232, inspection of seat tracks

- Before starting the inspection, clean the seat track if necessary.




(a) Inspection of seat track recesses using the tool item 2, P/N 98S53005036100

Inspect all the parts listed in the following table. Carefully follow the specific instruction(s) detailed after the table.

INSPECTION

Item Description Part Number Qty Figure

1 Seat track S53375001214 1 1, sheet 2

INSPECTION OBJECT: Insert the tool item 2, P/N 98S53005036100 from the first recess of the seat track and repeat inspection in pairs until the last recess.

RESULT ACTION TO BE PERFORMED

Step 1

Does the tool lower section fit into the seat track?

YES Perform Step 2

NO

Mark all ligaments inspected by tool

item 2 and perform

paragraph 3.C.(1)(b)

Step 2

Does the tool upper section fit into the seat track?

YES

Perform red marking on all ligaments

inspected by tool item 2 and

perform TASK 1

NO No further action

Specific instruction(s):

- Start from the beginning of the seat track to be inspected until its end.

- If sealant is installed into the seat track and is preventing the correct use of tool item 2, perform directly the inspection with tool item 3 and remove sealant using a non-metallic scrapper only if necessary.




(b) Inspection of seat track ligaments using the tool item 3, P/N 98S53005036101


INSPECTION



INSPECTION OBJECT: - Align face (A) of the tool item 3,

P/N 98S53005036101 with ligament (B) of the seat track previously marked at paragraph 3.C.(1)(a) step 1 or where sealant is preventing correct use of tool item 2.

- Then insert the tool into the seat track making sure that face (A) touches the ligament (B).


Are the teeth of the tool item 3 blocked by the ligament (B)?

YES No further action

NO

Perform red marking on ligament

and perform TASK 1


- If sealant is installed into seat track and is preventing the use of tool item 3, remove sealant using a non-metallic scrapper.

- Inspect each ligament (both opposite ligaments) marked or where sealant is preventing correct use of tool item 2 with tool item 3.

- Start the inspection with tool item 3 at level of the last ligament touching the tool item 2.

(2) Valid for aircraft model 42-400 and 42-500, in zones 221, 222, 231 and 232 inspection of seat tracks

- Before starting the inspection, clean the seat track if necessary.




(a) Inspection of seat track recesses using the tool item 2, P/N 98S53005036100


INSPECTION



and


and


INSPECTION OBJECT: Insert the tool item 2, P/N 98S53005036100 from the first recess of the seat track and repeat inspection in pairs until the last recess.


Step 1

Does the tool lower section fit into the seat track?

YES Perform Step 2

NO

Mark all ligaments inspected by item 2

and perform

paragraph 3.C.(2)(b)

Step 2

Does the tool upper section fit into the seat track?

YES

Perform red marking on all ligaments

inspected by item 2 and

perform TASK 2

NO No further action





- Start from the beginning of the seat track to be inspected until its end.

- If sealant is installed into the seat track and prevents the correct use of tool item 2, perform directly the inspection with tool item 3 and remove sealant using a non-metallic scrapper only if necessary.

(b) Inspection of seat track ligaments using the tool item 3, P/N 98S53005036101


INSPECTION



and


and


INSPECTION OBJECT: - Align face (A) of the tool item 3,

P/N 98S53005036101 with ligament (B) of the seat track previously marked at paragraph 3.C.(2)(a) step 1 or where sealant is preventing correct use of tool item 2.

- Then insert the tool into the seat track making sure that face (A) touches the ligament (B).


Are the teeth of the tool item 3 blocked by the ligament (B)?

YES No further action

NO

Perform red marking on ligament

and perform TASK 2





- If sealant is installed into the seat track and is preventing the correct use of tool item 3, remove sealant using a non-metallic scrapper.

- Inspect each ligaments (both opposite ligaments) marked or where sealant is preventing correct use of tool item 2 with tool item 3.

- Start the inspection with tool item 3 at level of the last ligament touching the tool item 2.

D. TESTS

None.

E. CLOSE-UP

(1) Re-install in FWD cargo area (between FR13 and FR17) sealant item 6, Material No. 05-113 or No. 09-044B, in track ends only and sealant item 7, Material No. 09-044A or 09-044B in the track if removed (Refer to SRM 51-35-00 and figure 3 for details).

(2) Re-install all parts that have been removed on the seat tracks during this inspection.

(3) Re-install passenger seats as per AMM (JIC) 25-21-21 RAI 10000.

(4) Re-energize the aircraft electrical network and disconnect the aircraft from ground as per AMM (JIC) 24-40-00 EAD 10000.


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page TR-1


4. TYPE DESIGN RECOVERING

TASK 1: REPLACEMENT OF THE SEAT TRACK RECESSES

(1) Valid for aircraft model 42-300 and 42-320, from FR13 to FR24, perform one of the following procedure depending of the involved area:

- SRM 530000-300-818, REPAIR (UPPER HORIZONTAL FLANGE REPLACEMENT).

or

- SRM 530000-300-837, REPAIR SCHEME FOR SPLICING.

or

- SRM 530000-300-856, REPAIR SCHEME FOR SEAT TRACK SPLICING AT THE FLOOR BEAM.

NOTE: In case of several ligaments are found out of tolerance on the same seat track section which implies seat track entire replacement, please contact ATR prior to further action providing with P/N of involved seat track.


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page TR-2


5. TYPE DESIGN RECOVERING

TASK 2: REPLACEMENT OF THE SEAT TRACK RECESSES

(1) Valid for aircraft model 42-400 and 42-500, from FR13 to FR24, perform one of the following procedure depending of the involved area:

- SRM 530000-300-818, REPAIR (UPPER HORIZONTAL FLANGE REPLACEMENT).

or

- SRM 530000-300-832, REPAIR SCHEME FOR SPLICING.

or

- SRM 530000-300-853, REPAIR SCHEME FOR SEAT TRACK SPLICING AT THE FLOOR BEAM.

NOTE: In case of several ligaments are found out of tolerance on the same seat track section which implies seat track entire replacement, please contact ATR prior to further action providing with P/N of involved seat track.


Original issue - Feb 20/20 Service Bulletin No. ATR42-53-0151 Page IL-1


ILLUSTRATIONS

From FR13 to FR24, inspection of seat tracks Figure 1, sheet 1 of 3




From FR13 to FR24, inspection of seat tracks Figure 1, sheet 2




From FR13 to FR24, inspection of seat tracks Figure 2, sheet 1 of 3




Seat track sealant location between FR13 and FR17 Figure 3

SERVICE BULLETIN ATR42

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