## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Revision 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Page 18 19 20 Revision 1 1 1 Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 1 LIGHTS
Emergency Lighting - The One Time Replacement of Insufficiently Bright Exit Signs

1. Planning Information A. Effectivity (1) F28 Mark 0070/0100 aircraft serial numbers: 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317, 11340, 11342, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11487, 11492 thru 11495, 11497, 11498, 11501, 11503, 11506, 11507, 11509, 11514, 11521, 11528, 11529, 11532, 11536 thru 11541, 11543, 11545, 11547, 11549, 11551, 11553 thru 11583 and 11585. (2) 11244 thru 11256, 11259 thru 11261, 11263, 11267 thru 11286, 11288 thru 11300, 11302 thru 11316, 11318 thru 11339, 11341, 11343 thru 11351, 11357 thru 11367, 11371 thru 11375, 11378 thru 11384, 11386 thru 11394, 11396 thru 11401, 11404, 11409, 11410, 11420 thru 11424, 11429 thru 11433, 11438 thru 11446, 11450 thru 11456, 11460 thru 11466, 11468, 11470 thru 11477, 11480, 11483 thru 11486, 11488 thru 11491, 11496, 11499, 11500, 11502, 11504, 11505, 11508, 11510 thru 11513, 11515 thru 11520, 11522, 11523 and 11527. B. Concurrent Requirements (1) Not applicable. If in a postService Bulletin SBF100-52-060 configuration.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 2 Revision 1, Nov 04/10 C. Reason (1) The Fokker 70 and 100 have exit signs and emergency lighting strips installed to locate the emergency exits. A number of these signs and lighting strips are not electrically powered, but are self illuminat ed by means of a hydrogen isotope: Tritium. As this isotope decays over time, these signs and lighting strips will loose their brightness. (2) To remain compliant with regulations, Tritium exit signs and lighting strips should be replaced when their brightness has deteriorated below accepted levels. (3) Currently the MRB/MPD does not include an inspection task for signs and lighting strips containing Tritium. This Service Bulletin requires a one-time inspection of all Tritium exit signs and lighting strips and the replacement of insufficiently bright signs and lighting strips. (4) The MRB document will be updated before July 2011 to include an appropriate maintenance task to ensure that the exit signs and lighting strips meet the minimum brightness requirements. Reason for Revision (1) This revision is made to:

- Correct the Effectivity by moving aircraft serial numbers 11257, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342 from step 1.A.(2) to step 1.A.(1), and adding them to the Material Information and to the applicable steps of Part 3 of the Accomplishment Instructions.

- Correct the Effectivity by moving aircraft serial number 11496 from step 1.A.(1) to 1.A.(2).

- Correct the Effectivity by adding aircraft serial numbers 11559 and 11560 to the Material Information and to the applicable steps of Part 3 of the Accomplishment Instructions.

- Add the applicable EASA AD to the Compliance en References.

- Rephrase step B. of the Parts 1, 2 and 3 of the Accomplishment Instructions for clarity. D. Description (1) This Service Bulletin will provide two opt ions to check the exit signs and lighting strips. (a) One option will be to check the manufacture date on the sign or strip. In some cases this manufacture date will not be visible without the temporary removal of the sign or strip. (b) The second option will be the use of a comparator tool to determine if the sign or strip brightness is still above the minimum required value.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 3 (2) This Service Bulletin is divided into three parts as follows:
Part 1 : The Inspection and Replacement of the Lighting Strips on the Overwing Emergency Exit Handles (Applicable to aircraft 11487, 11492 thru 11495, 11497, 11503, 11509, 11521, 11528 thru 11583 and 11585) This Part tells you how to:

- Inspect the lighting strips on the overwing emergency exit handles (temporary removal of lighting strips as necessary)

- Replace the insufficiently bright lighting strips

- Discard the old lighting strips in accordance with local regulations.
Part 2 : The Inspection and Replacement of the Exit Signs on the Class Divider (Applicable to aircraft 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507, 11514 and 11547) This Part tells you how to:

- Inspect the exit signs on the class divi der (temporary removal of exit signs as necessary)

- Replace the insufficiently bright exit signs

- Discard the old exit signs in accordance with local regulations.
Part 3 : The Inspection and Replacement of the Exit Signs on the Cabin Divider. (Applicable to aircraft 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317, 11342, 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11581, 11583 and 11585) This Part tells you how to:

- Inspect the exit signs on the cabin divi der (temporary removal of exit signs as necessary)

- Replace the insufficiently bright exit signs

- Discard the old exit signs in accordance with local regulations. E. Compliance (1) Recommended. Fokker Services recommends the accomplishment of this Service Bulletin within 6 months after the original issue date of this Service Bulletin. NOTE : The EASA Airworthiness Directive 2010-0200 has been issued with respect to this subject.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 4 Revision 1, Nov 04/10 F. Approval (1) The technical content of this document is approved by EASA or under the authority of DOA nr. EASA.21J.059.

G. Manpower (1) Approximately 1 man-hour is necessary to do this Service Bulletin on one aircraft. This table of manpower will help you to schedule and do this Service Bulletin:

Instructions Men Man-hours Elapsed time (hours) Removal 1 0,5 0,5 Modification Inspection - - - Installation 1 0,5 0,5 Testing - - - Total 1,0 1,0 NOTE : This estimate does not include the time necessary for the paint to dry and/or the sealant to cure. (2) The estimated hours are for direct labor done by experienced personnel. They are calculated based on the conditions given in SBF100-00-001 (Service Bulletin Introduction, section 2.C., "Manpower"). H. Weight and Balance (1) Weight change: None Index change: None.
I. Electrical Load Data (1) Not affected. J. Software Accomplishment Instructions (1) Not applicable.
K. References (1) EASA Airworthiness Directive (AD) 2010-0200 Fokker 70/100 Illustrated Parts Catalog (IPC) Fokker 70/100 Maintenance Review Board (MRB) document Fokker 70/100 Maintenance Planning Document (MPD) Fokker Consumable Material List (CML)

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 5 Fokker internal reference: - ECR 15606.
L. Publications Affected (1) This SB affects the publications listed below: (a) Maintenance Documentation
Not affected. (b) Maintenance Programs - Fokker 70/100 Maintenance Review Board (MRB) - Fokker 70/100 Maintenance Planning Document (MPD) - Fokker 70/100 Customized Maintenance Program (CMP). (c) Special Instructions for Continued Airworthiness (ICA) The effect of this Service Bulletin on the special ICA is as follows:

YES NO - Electrical Wiring Interconnection System (EWIS) - X - Fuel Tank Safety (FTS) - X - Damage Tolerance of Fatigue Critical Structure - X NOTE : If “YES”, when not already incorporated, the changed ICA will be incorporated in the MRB document within one calendar year from the date of issue of this Service Bulletin. Until then, no actions are required. (d) Operational Documentation
Not affected. (2) For incorporation of this Service Bulletin in your documentation refer to SBF100-00-001 (Service Bulletin Introduction, section 4 "Incorporation of Service Bulletins in Documentation of Fokker Services"). M. Interchangeability or Intermixability of Parts (1) Not applicable.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 6 Revision 1, Nov 04/10 2. Material Information A. Material – Price and Availability (1) You can order the necessary parts against list price. B. Material Required (1) These parts, which are necessary to complete this Service Bulletin on 1 aircraft, are not part of the mod kit.
New Part Number Quantity Keyword Info Old part number Instructions/ Disposition * 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 AC2PP - - - - 1 1 1 - - Exit sign English AC2PP Discard AC2QQ - - - - - - 1 - - Exit sign German AC2QQ Discard AC2RR - - - - - 1 - - - Exit sign Italian AC2RR Discard AC30G** - - - 2 - - - - - Exit sign English AC30-01C3 Discard AC7Q 4 2 - - - - - - - Light strip - AC7Q Discard AC30Z*** - - - - - - - - 1 Exit sign English/ Vietnamese B01-12722 Discard AC9-3A  - - 2 - - - - - - Exit sign English CANAC2W Discard MEK - - - AR - - - - AR Solvent Fk11-003 ** *** - Local source 1498021 - - - - - - - 2 - Exit sign English 1498021 Discard 6766420-501 - - - - 1 1 1 - - Exit sign English/ slide 6766420- 501 Discard 6766420-503 - - - - - - 1 - - Exit sign German/ slide 6766420- 503 Discard 6766420-505 - - - - - 1 - - - Exit sign Italian/slide 6766420- 505 Discard

NOTES : AR Use as much as required ** Pn AC30G is two way interchangeable with AC30-01C3. *** Pn AC30Z is two way interchangeable with B01-12722.   Pn AC9-3A is two way interchangeable with CANAC2W. ** *** Refer to the CML for material numbers.

* 1 Applicable to perform Part 1 on aircraft serial numbers 11487, 11492 thru 11495, 11497, 11503 and 11509

* 2 Applicable to perform Part 1 on aircraft serial numbers 11521, 11528 thru 11583, and 11585

* 3 Applicable to perform Part 2 on aircraft serial numbers 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507 and 11514 *4 Applicable to perform Part 2 on aircraft serial number 11547

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 7 * 5 Applicable to perform Part 3 on aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558, 11561 thru 11579, 11581 and 11583

* 6 Applicable to perform Part 3 on aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558, 11561 thru 11579, 11581 and 11583 that need additional Italian language exit marking

* 7 Applicable to perform Part 3 on aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11579, 11581 and 11583 that need additional German language exit marking

* 8 Applicable to perform Part 3 on aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342

* 9 Applicable to perform Part 3 on aircraft serial numbers 11580 and 11585 (2) These mod kit parts are necessary to do this Service Bulletin on 1 aircraft. (a) Not applicable. C. Tooling – Price and Availability (1) You can order special tool pn DB-45-B1 and/or DB-45-B3 at your Fokker Services Account Support Manager. (2) You can contact your Fokker Services Account Support Manager for the price and availability of these special tools. D. Drawings Required (1) Not applicable.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 8 Revision 1, Nov 04/10 3. Accomplishment Instructions General:



### - For CML material number references, refer to “Myfokkerfleet.com/Documentation/CML”. WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. OBEY THE INSTRUCTIONS AND MANUFACTURER'S HEALTH AND SAFETY INSTRUCTIONS.
PART 1 : The Inspection and Replacement of the Lighting Strips on the Overwing Emergency Exit Handles (Applicable to aircraft 11487, 11492 thru 11495, 11497, 11503, 11509, 11521, 11528 thru 11583, and 11585) Refer to IPC figure 33-52-03-42. A. Inspect the light strips on the exit handles. (1) Inspect by checking the manufacturing date of the signs, continue with step A.(2) OR Inspect by using the comparator tool, continue with step A.(3). (2) Inspect by checking the manufacturing date. (a) Remove the light strips from the overwing emergency exit handles. Remove and keep (from each handle): - 1 light strip pn AC7Q - 2 screws pn NAS601-9P. (b) Check the manufacture date of the strip. Continue with step B. (3) Inspect by using the comparator tool. (a) Turn off all lighting in the cabin area. Refer to figure 1. (b) Hold the padded flat plate of the comparator tool against the illuminated area of the self-illuminated light strips on the exit handles. Use: - 1 comparator tool pn DB-45-B1 (100 micro-lamberts) (c) Visually check the illumination of the light strips with the calibrated light source in the comparator tool. (d) Verify if the light strip is brighter or weaker than the calibrated light source of the comparator tool. (e) If necessary, return lighting in the cabin to the previous setting.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 9 B. After inspection actions. (1) The light strip needs to be replaced in case: - the manufacture date is not stated on the strip, unless the strip is found to be brighter than the comparator tool, OR - the strip was manufactured more than 7 years ago, unless the strip is found to be brighter than the comparator tool, OR - the strip is found to be weaker than the comparator tool. If the strip needs to be replaced, go to step B.(2). The strip does not have to be replaced in case: - the strip was manufactured less than 7 years ago, OR - the strip brightness is found to be brighter than the comparator tool. If the strip does not have to be replaced, go to step B.(3).

The following step is only applicable if step B.(1) instructs to perform this step (2) Replace the light strip. (a) If not already removed in step A.(2), remove the light strips from the overwing emergency exit handles. Remove (from each handle): - 1 light strip pn AC7Q (discard) - 2 screws pn NAS601-9P (keep). (b) Install new light strips onto the overwing emergency exit handles. Use (for each handle): - 1 light strip pn AC7Q (new) - 2 screws pn NAS601-9P (re-use). (c) Discard the old light strips.
1 The light strips contain Tritium (H3), a weak radioactive source. Discard the strips in accordance with local regulations, or contact the vendor, Self Powered Lighting, in case no local nuclear waste disposal agency/company is available. - http://www.self-powered.com/ The following step is only applicable if step B.(1) instructs to perform this step (3) If removed, re-install the light strip. (a) If removed in step A.(2), re-install the lighting strip. Use (for each handle):

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 10 Revision 1, Nov 04/10 - 1 light strip pn AC7Q - 2 screws pn NAS601-9P.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 11 Part 2 : The Inspection and Replacement of the Exit signs on the Class Divider (Applicable to aircraft 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507, 11514 and 11547) A. Inspect the Exit signs on the class dividers. (1) Inspect by checking the manufacturing date of the signs, continue with step A.(2) OR Inspect by using the comparator tool, continue with step A.(3). (2) Inspect by checking the manufacturing date. For aircraft serial number 11547: Refer to IPC figure 11-35-07-01L and 11-35-07-03AX. (a) Remove the Exit signs from the separation walls. Remove: - 2 exit signs pn AC30-01C3. (b) Thoroughly clean the separation walls to remove all remaining glue. Use: - AR solvent pn MEK (Fk11-003). For aircraft serial numbers 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507 and 11514: Refer to IPC figure 25-26-01-51. (c) Remove the Exit signs from the class divider. Remove and keep (from each divider): - 1 exit sign pn CANAC2W - 9 screws pn NAS514P832-6 - 1 support pn 5301013-1. For all aircraft: (d) Check the manufacture date of the sign. Continue with step B. (3) Inspect by using the comparator tool. (a) Turn off all lighting in the cabin area. Refer to figure 1. (b) Hold the padded flat plate of the comparator tool against the illuminated area of the self-illuminated exit signs on the separation walls. Use:

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 12 Revision 1, Nov 04/10 - 1 comparator tool pn DB-45-B3 (250 micro-lamberts) (c) Visually check the illumination of the exit signs with the calibrated light source in the comparator tool. (d) Verify if the exit sign is brighter or weaker than the calibrated light source of the comparator tool. (e) If necessary, return lighting in the cabin to the previous setting. B. After inspection actions. (1) The sign needs to be replaced in case: - the manufacture date is not stated on the sign, unless the sign is found to be brighter than the comparator tool, OR - the sign was manufactured more than 7 years ago, unless the sign is found to be brighter than the comparator tool, OR - the sign is found to be weaker than the comparator tool. If the sign needs to be replaced, go to step B.(2). The sign does not have to be replaced in case: - the sign was manufactured less than 7 years ago, OR - the sign brightness is found to be brighter than the comparator tool. If the sign does not have to be replaced, go to step B.(3).

The following step is only applicable if step B.(1) instructs to perform this step (2) Replace the Exit signs. For aircraft serial number 11547: Refer to IPC figure 11-35-07-01L and 11-35-07-03AX. (a) If not already removed in step A.(2)(a), remove the signs from the separation walls. Remove: - 2 exit signs pn AC30-01C3. (discard). (b) Thoroughly clean the separation walls to remove all remaining glue. Use: - AR solvent pn MEK (Fk11-003). (c) Install the new Exit signs on the separation walls at the same locations as previously used. Use: - 2 exit signs pn AC30G.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 13 NOTE : Fasten the new sign with the double sided tape present on the back of the sign. For aircraft serial numbers 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507 and 11514: Refer to IPC figure 25-26-01-51. (d) If not already removed in step A.(2)(c), remove the Exit signs from the class divider. Remove (from each divider): - 1 exit sign pn CANAC2W (discard) - 9 screws pn NAS514P832-6 (keep) - 1 support pn 5301013-1 (keep). (e) Install the new Exit signs onto the class dividers. Use (for each divider): - 1 exit sign pn AC9-3A - 9 screws pn NAS514P832-6 (re-use) - 1 support pn 5301013-1. (re-use). For all aircraft: (f) Discard the old Exit signs.
1 The Exit signs contain Tritium (H3), a weak radioactive source. Discard the signs in accordance with local regulations, or contact the vendor, Self Powered Lighting, in case no local nuclear waste disposal agency/company is available. - http://www.self-powered.com/

The following step is only applicable if step B.(1) instructs to perform this step (3) If removed, re-install the signs. For aircraft serial number 11547: (a) If removed in step A.(2), re-install the signs on the separation walls at the same locations as previously used. Re-use: - 2 exit signs pn AC30-01C3. NOTE : Use double sided tape, 3M Scotch 665 or equivalent, to re-attach signs. For aircraft serial numbers 11340, 11352 thru 11356, 11360, 11368 thru 11370, 11376, 11377, 11385, 11395, 11402, 11403, 11405 thru 11408, 11411 thru 11419, 11425 thru 11428, 11434 thru 11437, 11447 thru 11449, 11457 thru 11459, 11467, 11469, 11478, 11479, 11481, 11482, 11498, 11501, 11506, 11507 and 11514:

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 14 Revision 1, Nov 04/10 (b) If removed in step A.(2), re-install the sign onto the class divider. Re-use (for each divider): - 1 exit sign pn CANAC2W - 9 screws pn NAS514P832-6 - 1 support pn 5301013-1.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 15 Part 3 : The Inspection and Replacement of the Exit Signs on the Cabin Divider. (Applicable to aircraft 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317, 11342, 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11581, 11583 and 11585) A. Inspect the exit signs on the cabin divider. (1) Inspect by checking the manufacturing date of the signs, continue with step A.(2) OR Inspect by using the comparator tool, continue with step A.(3). (2) Inspect by checking the manufacturing date. For aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342: Refer to IPC figure 25-26-02-03C. (a) Remove the cabin divider from the rails to obtain access to the sign attachment provisions. Keep all installation provisions. (b) Remove the exit signs from the cabin divider. Remove and keep: - 2 exit signs pn 1498021 - 4 nuts pn H10-3 - 4 washers pn AGS2035C. For aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11579, 11581 and 11583: Refer to IPC figure 25-26-02-03L, 25-26-02-03M or 25-29-11-01A. (c) Remove the exit signs from the cabin divider. Remove and keep: - 1 exit sign pn AC2PP - 1 exit sign pn AC2RR * - 1 exit sign pn AC2QQ * - 1 exit sign pn 6766420-501 - 1 exit sign pn 6766420-503 * - 1 exit sign pn 6766420-505 * - 4 (8*) screws pn NAS601-7. NOTE : * - if installed. For aircraft serial numbers 11580 and 11585: Refer to IPC figure 25-29-11-05. (d) Remove the exit signs from the cabin divider. Remove: - 2 exit signs pn B01-12722.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 16 Revision 1, Nov 04/10 (e) Thoroughly clean the cabin divider to remove all remaining glue. Use: - AR solvent pn MEK (Fk11-003).
For all aircraft: (f) Check the manufacture date of the exit sign. Continue with step B. (3) Inspect by using the comparator tool. (a) Turn off all lighting in the cabin area. Refer to figure 1. (b) Hold the padded flat plate of the comparator tool against the illuminated area of the self-illuminated exit signs on the separation walls. Use: For aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342: - 1 comparator tool pn DB-45-B1 (100 micro-lamberts). For aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11581, 11583 and 11585: - 1 comparator tool pn DB-45-B3 (250 micro-lamberts). (c) Visually check the illumination of the exit signs with the calibrated light source in the comparator tool. (d) Verify if the exit sign is brighter or weaker than the calibrated light source of the comparator tool. (e) If necessary, return lighting in the cabin to the previous setting. B. After inspection actions. (1) The sign needs to be replaced in case: - the manufacture date is not stated on the sign, unless the sign is found to be brighter than the comparator tool, OR - the sign was manufactured more than 5 years ago, unless the sign is found to be brighter than the comparator tool, (only for aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342), OR - the sign was manufactured more than 7 years ago, unless the sign is found to be brighter than the comparator tool, (only for aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11581, 11583 and 11585), OR - the sign is found to be weaker than the comparator tool. If the sign needs to be replaced, go to step B.(2).

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 17 The sign does not have to be replaced in case: - the sign was manufactured less than 5 years ago, (only for aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342), OR - the sign was manufactured less than 7 years ago, (only for aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11581, 11583 and 11585), OR - the sign brightness is found to be brighter than the comparator tool. If the sign does not have to be replaced, go to step B.(3).

The following step is only applicable if step B.(1) instructs to perform this step (2) Replace the Exit signs. For aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342: Refer to IPC figure 25-26-02-03C. (a) If not already removed in step A.(2)(b), remove the Exit signs from the cabin divider. Remove: - 2 exit signs pn 1498021 (discard) - 4 nuts pn H10-3 (keep) - 4 washers pn AGS2035C (keep). (b) Install the new Exit signs onto the cabin divider. Use: - 2 exit signs pn 1498021 (new) - 4 nuts pn H10-3 (re-use) - 4 washers pn AGS2035C (re-use). For aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11579, 11581 and 11583: Refer to IPC figure 25-26-02-03L, 25-26-02-03M or 25-29-11-01A. (c) If not already removed in step A.(2)(c), remove the Exit signs from the cabin divider. Remove: - 1 exit sign pn AC2PP (discard) - 1 exit sign pn AC2RR * (discard) - 1 exit sign pn AC2QQ * (discard) - 1 exit sign pn 6766420-501 (discard) - 1 exit sign pn 6766420-503 * (discard) - 1 exit sign pn 6766420-505 * (discard) - 4 (8*) screws pn NAS601-7 (keep). NOTE : * - if installed.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 18 Revision 1, Nov 04/10 (d) Install the new Exit signs onto the cabin divider. Use: - 1 exit sign pn AC2PP (new) - 1 exit sign pn AC2RR * (new) - 1 exit sign pn AC2QQ * (new) - 1 exit sign pn 6766420-501 (new) - 1 exit sign pn 6766420-503 * (new) - 1 exit sign pn 6766420-505 * (new) - 4 (8*) screws pn NAS601-7 (re-use). NOTE : * - if installed previously. For aircraft serial numbers 11580 and 11585: Refer to IPC figure 25-29-11-05. (e) If not already removed in step A.(2)(d), remove the old Exit signs from the cabin divider. Remove and discard: - 2 exit signs pn B01-12722. (f) Thoroughly clean the cabin divider to remove all remaining glue. Use: - AR solvent pn MEK (Fk11-003). (g) Install the new Exit signs onto the cabin divider at the same locations as previously used. Use: - 2 exit signs pn AC30Z. NOTE : Fasten the new sign with the double sided tape present on the back of the sign. For all aircraft: (h) Discard the old Exit signs.
1 The Exit signs contain Tritium (H3), a weak radioactive source. Discard the signs in accordance with local regulations, or contact the vendor, Self Powered Lighting or SRB Technologies, in case no local nuclear waste disposal agency/company is available. - http://www.self-powered.com - http://www.srbtechnologies.com/contact.htm (Only for sign pn 1498021).

The following step is only applicable if step B.(1) instructs to perform this step (3) If removed, re-install the signs. For aircraft serial number 11257, 11258, 11262, 11264 thru 11266, 11287, 11301, 11317 and 11342: (a) If removed in step A.(2)(b), re-install the signs on the cabin divider. Re-use:

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

Jul 05/10 SBF100-33-023 Revision 1, Nov 04/10 Page 19 - 2 exit signs pn 1498021 - 4 nuts pn H10-3 - 4 washers pn AGS2035C. (b) Install the cabin divider onto the rails. Use the installation provisions kept in step A.(2)(a). For aircraft serial numbers 11528, 11536 thru 11541, 11543, 11551, 11553, 11556, 11558 thru 11579, 11581 and 11583: (c) If removed in step A.(2)(c), re-install the signs on the cabin divider. Re-use: - 1 exit sign pn AC2PP - 1 exit sign pn AC2RR * - 1 exit sign pn AC2QQ * - 1 exit sign pn 6766420-501 - 1 exit sign pn 6766420-503 * - 1 exit sign pn 6766420-505 * - 4 (8*) screws pn NAS601-7. NOTE : * - if installed previously. For aircraft serial numbers 11580 and 11585: (d) If removed in step A.(2)(d), re-install the Exit signs on the cabin divider at the same locations as previously used. Re-use: - 2 exit signs pn B01-12722. NOTE : Use double sided tape, 3M Scotch 665 or equivalent, to attach the signs.

## Service Bulletin Fokker 70/100

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V.

SBF100-33-023 Jul 05/10 Page 20 Revision 1, Nov 04/10 Comparator Tool pn DB-45-B1 (100 μ L) and DB-45-B3 (250 μ L). Figure 1