Service Bulletin Change Notification 

Fokker 70/100 

Jan 24/12 Page 1 of 1 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

-Change this SB as follows: 

Page 5: K. References: Change step (1) and add as follows: 

- Fokker 70/100 Aircraft Maintenance Manual (AMM) 

 - Task 20-14-09-910-812-A. 

Page 9: 3. Accomplishment Instructions 

Change General: by adding the following: 

- For Information on installation of cotter pins, refer to AMM 

 Task 20-14-09-910-812-A. 

Page 12: Change step F. (1) as follow: 

(1) Attach the LH and RH operating rod to the Messier-Dowty MLG with the new 

 cotter pin, modified bolt, nut and washers, item 150 – 180. 

 Reference is made to AMM Task 20-14-09-910-812-A for installation of cotter 

 pins. Use (qty listed per door): 

 - 1 MS27039DD4-27 Bolt item 150 

 - 1 NAS1149D0416K Washer under bolt-head, no item no 

 - 2 NAS1149D0463K Washers item 160 

 - 1 MS17825-4 Nut item 170 

 - 1 MS24665-153 Cotter pin item 180. 

 

SERVICE BULLETIN CHANGE NOTIFICATION (SBCN) 

SBF100-52-090/01 

for 

Service Bulletin (SB) SBF100-52-090, revision -, dated Nov 17/11 

DOORS

Main Landing Gear Doors - An Inspection and Modification of the Attachment Bolts of the 

 Operating Rod Bracket to the Outer Skin and Modification of the 

 Attachment Bolts to the Main Landing Gear (MLG) of the Carbon 

 Fiber Reinforced Plastic (CFRP) MLG Outboard Doors 

The technical content of this document is approved under the authority of DOA nr. EASA.21J.059 
Service Bulletin Change Notification 

Fokker 70/100 

Jan 24/12 Page 2 of 2 

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 therein 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 12: Change step G. (1) as follow: 

(1) Attach the LH and RH operating rod to the Goodrich (formerly Menasco) MLG 

 with the new cotter pin, modified bolt, nut and washers, item 150 – 190. 

 Reference is made to AMM Task 20-14-09-910-812-A for installation of cotter 

 pins. Use (qty listed per door): 

 - 1 MS27039DD4-27 Bolt item 150 

 - 2 NAS1149D0463K Washers item 160 

 - 1 MS17825-4 Nut item 170 

 - 1 MS24665-153 Cotter pin item 180 

 - 1 41901-115 Sliding bush item 190 (kept in step B.(1)). 

Reason for change: 

This SBCN is issued to: 

- Correct the forgotten AMM standard practices reference and to improve the clarity/feasibility. 

We do not plan to issue a formal SB revision at this moment. If, however, a revision becomes 

necessary, we will also incorporate this SBCN. 

 
Service Bulletin 

Fokker 70/100 

Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Revision - - - - - - - - - - - - - - - - - 

Page 18 

Revision - 

Nov 17/11 SBF100-52-090 

Page 1 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

DOORS

 Main Landing Gear Doors - An Inspection and Modification of the Attachment Bolts of the 

Operating Rod Bracket to the Outer Skin and Modification of the 

Attachment Bolts to the Main Landing Gear (MLG) of the Carbon 

Fiber Reinforced Plastic (CFRP) MLG Outboard Doors 

1. Planning Information

A. Effectivity 

(1) F28 Mark 0070/0100 aircraft serial numbers: 

11244 thru 11585 

(2) Production version of this modification: Not applicable. 

B. Concurrent Requirements 

(1) For aircraft still equipped with CFRP MLG outboard doors, pn D13312-401 thru -410: 

Before, or at the same time as, you do this SB, you must do: 

- SBF100-52-080 - DOORS – Main Landing Gear Doors – An Inspection and 

Modification of the Attachment of the Operating Rod Bracket to the Outer Skin of 

the Carbon Fiber Reinforced Plastic (CFRP) Main Landing Gear (MLG) Outboard 

Doors. 

C. Reason 

(1) An event occurred where, after landing gear down selection, a MLG unsafe indication 

appeared on the MFDU and the green MLG down and locked indication light 

remained off. Several cycles with the normal landing gear selector handle did not 

result in a down and locked situation for the MLG. Also after using the alternate 

procedure the problem persisted. When the aircraft finally landed the MLG involved 

was suddenly forced into its down and locked position. 

If equipped with CFRP MLG outboard 

doors. 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 2 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

However, due to this sudden movement a pressure pulse was generated as a result 

of which the other MLG got unlocked and collapsed. 

(2) This SB only addresses the cause of the MLG not attaining its down and locked 

position in flight. Investigation revealed that the bracket of the rod in the MLG 

outboard door was detached from the outboard door, got stuck between the MLG and 

wing lower skin, thus obstructing the MLG to lock properly in flight. 

(3) As a result of similar previous occurrences Service Bulletin SBF100-52-080 was 

already introduced, in December 2005, to inspect and modify the attachment of the 

operating rod bracket. After this modification several operators reported breaking of 

the recessed head of the titanium attachment bolts of the operating rod bracket to the 

CFRP MLG outboard door. The remaining bolt shafts are then pulled through the 

external repair patch and the carbon fiber door outer skin. The result could be that the 

operating rod, with the detached bracket, gets stuck between the MLG main fitting 

and wing lower skin. This could result in a MLG which will not come in the down and 

locked position during LG extension as reported (see also AOF100.166#03). 

The primary factor to the cause of breaking bolt heads has been determined to be the 

incorrect adjustment of the MLG outboard door. 

(4) To prevent breaking of the recessed bolt heads of the operating rod bracket from the 

CFRP MLG outboard door and possible improper locking of the MLG, this Service 

Bulletin introduces: 

- a detailed inspection for play or cracks in the recessed bolt heads in Part 1, and 

- a modification to improve the attachment of the operating rod bracket to the 

CFRP MLG outboard door and the introduction of a weaker (modified aluminum) 

bolt in the MLG attachment of the door operating rod, in Part 2. 

(5) As an additional measure to prevent further economical damages MRB task 

321201-00-03 has been introduced to inspect the CFRP MLG outboard door for play 

or cracks in the recessed countersunk heads of the operating rod bracket attachment 

bolts at a scheduled basis. 

(6) For spare CFRP MLG outboard doors Component Service Bulletin (CSB) 

D13312-52-015 has been issued. 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 3 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

D. Description 

(1) This Service Bulletin is divided in two parts as follows: 

Part 1: The Detailed Inspection of the CFRP MLG Outboard Door Recessed Bolt 

Heads 

This Part tells you how to: 

 - Inspect the MLG outboard door for play or cracks in the recessed countersunk 

heads of the operating rod bracket attachment bolts. 

Part 2: The Modification of the CFRP MLG Outboard Doors and Attachment to the 

MLG 

This Part tells you how to: 

 - Remove the recessed titanium attachment bolts and install oversize tension 

type Hi-Lok bolts in the MLG outboard door to improve the attachment of the 

operating rod bracket, and 

 - Install an aluminum bolt in the attachment of the operating rod assy to the MLG, 

which replaces the existing steel bolt. 

E. Compliance 

(1) Part 1: Recommended 

Fokker Services recommends the accomplishment of Part 1 of this Service Bulletin 

within 9 months after the date of issue of this Service Bulletin. 

NOTE: If Part 2 is accomplished within 9 months after the date of issue of this 

 Service Bulletin, there is no requirement to do Part 1. 

(2) Part 2: Recommended. 

Fokker Services recommends the accomplishment of Part 2 of this Service Bulletin 

within 24 months after the date of issue of this Service Bulletin. 

NOTE: It is expected that EASA will issue an Airworthiness Directive (AD) with 

 respect to this subject with the same compliance terms. Refer to the EASA 

 website for the publication of a Proposed Airworthiness Directive for 

 comments. 

F. Approval 

(1) The technical content of this document is approved under the authority of DOA nr. 

EASA.21J.059. 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 4 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

G. Manpower 

(1) Approximately 3 man-hours are necessary to do Part 1 of 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 1 1 

Modification 

Inspection 1 1 1 

Installation 1 1 1 

Testing - - - 

Total 3 3 

NOTE: This estimate does not include the time necessary for the paint to dry and/or 

the sealant to cure. 

(2) Approximately 9 man-hours are necessary to do Part 2 of 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 2 1 0,5 

Modification 

Inspection 2 1 0,5 

Installation 2 6 3 

Testing 1 1 1 

Total 9 5 

NOTE: This estimate does not include the time necessary for the paint to dry and/or 

the sealant to cure. 

(3) 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 changed. 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 5 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

J. Software Accomplishment Summary 

(1) Not applicable. 

K. References 

(1) Fokker 70/100 Structural Repair Manual (SRM) 

Fokker 70/100 Component Maintenance Manual (CMM) 

Fokker Consumable Material List (CML) 

Fokker 70/100 Configuration Deviation List (CDL): 

 - 52-07. 

Fokker 70/100 Service Bulletin (SB): 

 - SBF100-52-080 

 - SBF100-32-090 

 - SBF100-32-129 

 - SBF100-32-160. 

Fokker Component Service Bulletin (CSB): 

 - D13312-52-015. 

Fokker internal reference(s): 

 - ECR 88864. 

 - ECR 015248. 

 - ECR 015742. 

L. Publications Affected 

(1) This SB affects the publications listed below: 

(a) Maintenance Documentation

- Fokker 70/100 Aircraft Maintenance Manual (AMM) - chapter 32-11 

- Fokker 70/100 Illustrated Parts Catalog (IPC) - chapter 52-82 

 - chapter 32-11 

 - chapter 32-12 

- Fokker 70/100 Component Maintenance Manual 

(Messier-Dowty CMM) - chapter 32-10-62 

 (Goodrich (formerly Menasco) CMM) - chapter 32-12-03 

 (Goodrich (formerly Menasco) CMM) - chapter 32-12-04 

NOTE: See attached Manual Change Notification MCNM F100-147. 

(b) Maintenance Programs

Not affected. 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 6 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

(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) Report to Fokker Services that this SB has been carried out on the applicable aircraft. 

Send to Fokker Services the “Reporting Quality Form” of this SB, see last SB page. 

Note: Completion of this form is not a formal part of accomplishment of the Service 

 Bulletin itself, and hence not a requirement. 

(3) 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) For future spare parts supply use these part numbers: 

New Part Number Keyword Old Part Number

D13312-714 MLG Outboard Door Assembly D13312-702 

D13312-715 MLG Outboard Door Assembly D13312-703 

D13312-716 MLG Outboard Door Assembly D13312-704 

D13312-717 MLG Outboard Door Assembly D13312-705 

D13312-718 MLG Outboard Door Assembly D13312-706 

D13312-719 MLG Outboard Door Assembly D13312-707 

D13312-720 MLG Outboard Door Assembly D13312-708 

D13312-721 MLG Outboard Door Assembly D13312-709 

D13312-722 MLG Outboard Door Assembly D13312-710 

D13312-723 MLG Outboard Door Assembly D13312-711 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 7 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

2. Material Information

A. Material – Price and Availability 

(1) You can order the necessary parts as mod kit SB10052090-XU-A or SB10052090-

XU-B. 

(2) You can contact your Fokker Services Account Manager for the price and lead-time of 

these mod kits. 

B. Material Required 

(1) These parts, which are necessary to complete Part 2 of this Service Bulletin, are not

part of the mod kit. 

New Part Number Qty Keyword Info Old Part Number Instructions/

Disposition

PR1436G-A** * Corrosion Inhibitive 

sealant 

Fk09-016 - Local source 

 - * Lint-free cloth. Fk05-044 - Local source 

Methyl Ethyl 

Ketone** 

* Solvent. Fk11-003 - Local source 

Alodine 1201 * Conversion coating. Fk13-003D - Local source 

NOTES: * Use as much as necessary. 

** Or equivalent. 

(2) These mod kit (SB10052090-XU-A or SB10052090-XU-B) parts are necessary to do 

Part 2 of this Service Bulletin on 1 aircraft. 

New Part Number Qty Keyword Info Old Part Number Instructions/

 A B Disposition

F0N18-1230-6-7 6 6 Hi-Lok bolt - F0N2-1611V03-04 Discard 

F0N18-2240-6* 6 6 Collar - MS21043-3 Discard 

MS27039DD4-27 2 - Bolt Item 150 

Figure 4. 

NAS6704DU17 or 

200329856. 

Discard 

MS27039DD4-27 - 2 Bolt Item 150 

Figure 5. 

NAS6704-19D or 

NAS6704D19. 

Discard 

MS17825-4 2 - Nut Item 170 

Figure 4. 

A103ES or 

200497618. 

Discard 

MS17825-4 - 2 Nut Item 170 

Figure 5. 

MS17826-4 Discard 

NAS1149D0463K 4 - Washer Item 160 

Figure 4. 

SP13E or 

392034 

Discard 

NAS1149D0463K - 2 Washer Item 160 

Figure 5. 

AN960C416L Discard 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 8 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

NAS1149D0416K 2 - Washer No Item. 

Figure 4. 

- - 

MS24665-153 2 - Cotter pin Item 180 

Figure 4. 

MS24665-153 or 

SP90C5. 

Discard 

MS24665-153 - 2 Cotter pin Item 180 

Figure 5. 

MS24665-151, -152 

or -153. 

Discard 

NOTE: * Or equivalent collar F0N18-2240S6. 

(3) Applicability of mod kits: 

- Qty A (mod kit SB10052090-XU-A) is applicable to do Part 2 of this Service 

Bulletin on one aircraft , s/n 11244 thru 11527, if equipped with Messier-Dowty 

MLG’s with pn: with pn: 201072011, 201072012, 201072013, 201072014, 

201072015, 201072016, 201072017, 201072018, 201072019, 201072020, 

201072021, 201072022. 

- Qty B (mod kit SB10052090-XU-B) is applicable to do Part 2 of this Service 

Bulletin on one aircraft, s/n 11244 thru 11585, if equipped with Goodrich (formerly 

Menasco) MLG’s with pn: 41050-7/-8/-9/-10/-11/-12/-13/-14/-15/-16 or 41060-1/-

2/-3/-4/-5/-6. 

C. Tooling – Price and Availability 

(1) Not applicable. 

D. Drawings Required 

(1) Not applicable. 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 9 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

3. Accomplishment Instructions

General: 

- These instructions are applicable to the LH and RH MLG outboard door. 

- For CML material number references, refer to “Myfokkerfleet.com/Documentation/CML”. 

- For Standards and Process Manual (SPM) references, refer to 

“Myfokkerfleet.com/Documentation/SPM”. 

- For information on removal and installation of hiloks, refer to the SRM, chapter 51-41-01. 

- For information on removal and installation of bolts, refer to the SRM, chapter 51-43-01. 

- For information on drilling in composite parts, refer to the SRM, chapter 51-22-03. 

- For information on drilling in aluminum parts, refer to the SRM, chapter 51-22-01. 

- For the application of Alodine 1201 (Fk13-003D), refer to the AMM, chapter 51-22-00. 

- For the application of Sealing compound PR1436G-A (Fk09-016) refer to the AMM, 

chapter 51-23-00. 

WARNING: BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. OBEY 

THE INSTRUCTIONS AND MANUFACTURER'S HEALTH AND SAFETY 

INSTRUCTIONS. 

Part 1: The Detailed Inspection of the CFRP MLG Outboard Door Recessed Bolt Heads 

Refer to figure 1. 

A. Inspect the CFRP MLG outboard door for play or cracks in the recessed bolt heads as 

follows: 

(1) Remove the paint scheme from the bolt heads, if applicable. 

(2) Apply a controlled load, by hand, to the outer end of the MLG outboard door (i.e. in an 

in- and outboard direction). 

(3) At the same time inspect, on the outside of the door, whether there is free play 

between the countersunk bolt-heads and the external metal reinforcement plate 

and/or whether there are cracks in the bolt heads. 

(4) If there is doubt about the countersunk bolt heads, remove the bolts one-by-one for a 

more detailed inspection and re-install them, when no cracks are found, in 

accordance with CMM chapter 52-82-05 and SRM chapter 51-45-01. 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 10 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

B. Close the Inspections: 

(1) If play or cracks are found in the countersunk bolt heads and if CDL item 52-07 

cannot be applied you have to, before further flight: 

(a) Report your findings to Fokker Services BV for a repair and/or continued revenue 

operation approval. 

NOTE: The address to send your report to is given in SBF100-00-001 (Service 

Bulletin Introduction, Revision 6, Chapter 5). 

or

(b) Replace the cracked bolts by new ones. 

or

(c) Accomplish Part 2 of this Service Bulletin (in that case next step (2) and (3) can 

be omitted). 

(2) Adjust the MLG outboard door operating rod on the aircraft (Refer to AMM Task 52-

82-03-400-814-A or AMM Task 32-11-01-400-814-A Step V (Messier-Dowty MLG) or 

32-11-01-400-814-B Step X (Goodrich (formerly Menasco) MLG)). 

(3) Return the aircraft into service 

 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 11 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

Part 2: The Modification of the CFRP MLG Outboard Doors and Attachment to the MLG 

Refer to figures 2 and 3. 

A. For the aircraft s/n 11244 thru 11527, equipped with Messier-Dowty MLG’s with pn: 

201072011, 201072012, 201072013, 201072014, 201072015, 201072016, 201072017, 

201072018, 201072019, 201072020, 201072021, 201072022, reference is made to 

Figure 2: 

NOTE: Use mod kit SB10052090-XU-A. 

(1) Remove and discard the cotter pin, bolt, nut and washer of the LH and RH operating 

rod attachment to the MLG, items 150 thru 180. 

B. For the aircraft, s/n 11244 thru 11585, equipped with Goodrich (formerly Menasco) MLG’s 

with pn: 41050-7/ -8/-9/-10/-11/-12/-13/-14/-15/-16 or 41060-1/-2/-3/-4/-5/-6, reference is 

made to Figure 3 

NOTE: Use mod kit SB10052090-XU-B. 

(1) Remove and discard the cotter pin, bolt, nut and washers of the LH and RH operating 

rod attachment to the MLG, items 150 thru 180. Retain the sliding bush, item 190. 

Refer to figure 1. 

C. Remove and discard the attachment bolts, nuts and washers of the operating rod bracket 

to the MLG door skin, items 270, 280 and 290. Keep the operating rod bracket (item 250) 

in place. 

D. Install 1/64 inch oversize tension type Hi-Lok bolts instead of bolts pn F0N2-1611V03: 

(1) Ream the three (3) attachment holes in the reinforced CFRP MLG outboard door and 

the operating rod bracket up to accommodate 1/64 inch oversize Hi-Lok bolts from 

0.1900-0.1995 inch H11 (= 0.1995 - 0.2025 inch). 

Refer to the SRM, chapter 51-41-01. 

(2) Clean the reamed holes in the reinforced CFRP MLG outboard door and the 

operating rod bracket thoroughly. Use: 

- Methyl Ethyl Ketone Solvent (material no. Fk11-003, or equivalent). 

- Lint-free cloth (material no. Fk05-044). 

(3) Deburr the holes of the internal reinforcement plate in the reinforced CFRP MLG 

outboard door and of the operating rod bracket and apply surface protection 

treatment to the reinforcement plate and bracket holes. Use: 

- Conversion coating Alodine 1201 (material no. Fk13-003D). 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 12 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

(4) Install the operating rod bracket with the three (3) oversize tension type Hi-Lok bolts 

with sealant, refer to SRM chapter 51-41-01. Adjust the countersinking in the CFRP 

MLG outboard door slightly if necessary to make the Hi-Lok bolt heads completely 

flush with the door. Use: 

- 3 Hi- Lok bolts pn F0N18-1230-6-7. 

- 3 Collars pn F0N18-2240-6. 

- AR sealant pn PR1436G-A (material no. Fk09-016). 

NOTE: Collar pn F0N18-2240S6 can also be used as alternative. 

E. Re-identify the CFRP outboard MLG doors with the new part number (-7xx), as listed in 

section/step 1.M (“Interchangeability or Intermixability of Parts”), by mechanical engraving 

on the existing identification plate. 

Refer to figures 4 and 5. 

F. For the Messier-Dowty MLG’s, reference is made to Figure 4: 

(1) Attach the LH and RH operating rod to the Messier-Dowty MLG with the new cotter 

pin, modified bolt, nut and washers, item 150 – 180. Use (qty listed per door): 

- 1 MS27039DD4-27 Bolt item 150. 

- 1 NAS1149D0416K Washer under bolt-head, no item no. 

- 2 NAS1149D0463K Washers item 160. 

- 1 MS17825-4 Nut item 170. 

- 1 MS24665-153 Cotter pin item 180. 

(2) Torque the nut with 15 – 30 inch Lbs and install the cotter pin. 

G. For the Goodrich (formerly Menasco) MLG’s, reference is made to Figure 5: 

(1) Attach the LH and RH operating rod to the Goodrich (formerly Menasco) MLG with 

the new cotter pin, bolt, nut and washers, item 150 – 190. Use (qty listed per door): 

- 1 MS27039DD4-27 Bolt item 150. 

- 2 NAS1149D0463K Washers item 160. 

- 1 MS17825-4 Nut item 170. 

- 1 MS24665-153 Cotter pin item 180. 

- 1 41901-115 Sliding bush item 190 (kept in step B.(1)). 

(2) Torque the nut with 15 – 30 inch Lbs and install the cotter pin. 

H. Adjust the LH and RH MLG outboard door operating rod on the aircraft (Refer to AMM 

Task 52-82-03-400-814-A or AMM Task 32-11-01-400-814-A Step V (Messier-Dowty 

MLG) or 32-11-01-400-814-B Step X (Goodrich (formerly Menasco) MLG)). 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 13 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

290 

The Inspection of the Attachment Bolt Heads of the Operating Rod Bracket 

in the CFRP MLG Outboard Door 

(LH Shown/RH Opposite). 

Figure 1 

280 

View A Remove the paint scheme and 

inspect the recess in the three (3) 

countersunk bolt heads for 

movement and/or cracks. 

Apply a controlled 

load, by hand, to the 

outer end of the 

MLG outboard door

View B 

B

290 

270 

250 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 14 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

The Original Attachment of the Operating Rod to the Messier-Dowty MLG. 

Figure 2 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 15 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

The Original Attachment of the Operating Rod to the Goodrich MLG. 

Figure 3 
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 16 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

The new Attachment of the Operating Rod to the Messier-Dowty MLG. 

Figure 4 
Service Bulletin 

Fokker 70/100 

Nov 17/11 SBF100-52-090 

Page 17 

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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V. 

The New Attachment of the Operating Rod to the Goodrich MLG. 

Figure 5
Service Bulletin 

Fokker 70/100 

SBF100-52-090 Nov 17/11 

Page 18 

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Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted 

except with the prior written permission of Fokker Services B.V.

Service Bulletin Reporting Quality Form 

Use this Service Bulletin Reporting Quality Form to tell us your perception of the quality of the Service 

Bulletin. The reported data that you provide to us will be used to analyze areas of difficulties and to take 

corrective actions to further improve the quality of our Service Bulletins. 

We thank you for the time you have taken in completing this form. 

Note: Completion of this form is not a formal part of accomplishment of the Service Bulletin itself, and hence 

not a requirement. 

* Rate the scale of 1 to 4, with 1 the lowest score and 4 the highest score. 

Chapters * 1 2 3 4 

a) Quality rating of this SB (overall) □ □ □ □

b) Quality rating of the Planning Information □ □ □ □

c) Quality rating of the Material Information □ □ □ □

d) Quality rating of the Accomplishment Instructions □ □ □ □

e) Quality rating of the Test Instructions (if applicable) □ □ □ □

f) Quality rating of the Illustrations or Drawings (if applicable) □ □ □ □

g) Timely delivery of the SB □ □ □ □

If you have had difficulties with one of the chapters of this Service Bulletin and/or one of your rating(s) is 

lower than 3, please give a short description of the issue. 

Comments:

Operator: Date:

Name / Title: 

Please return this form to: Fokker Services B.V. Fokker Services B.V. (from 1-12-2011). 

Technical Services, Technical Services, 

Quality Department Quality Department 

P.O. box 231 P.O. Box 1357 

2150 AE Nieuw-Vennep 2130 EL Hoofddorp 

The Netherlands The Netherlands 

Fax: +31 (0) 252 627211 +31 (0) 88 6280 211 

 or Email : technicalservices@fokker.com
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

OCT 28/11 MCNM F100-147

Page 1 of 10 

MCNM-F100-147 

Subject : Doors – Modification of the Attachments of the Operating-Rod Bracket to the CarbonFiber Reinforced-Plastic MLG Outboard-Door, and Modification of the ConnectingParts of the MLG Outboard-Door Operating-Rod to the Gear. 

Reason : This MCN is issued to provide you with the changes on the content(s) of the affected 

manual(s), due to the introduction of SBF100-52-090. 

Effectivity : Refer to SBF100-52-090. 

Compliance : Once you have determined the applicability of this MCN for one or more of your 

aircraft, incorporate this information into the applicable manual(s). 

Publications 

affected : The Aircraft Maintenance Manual (AMM) 

 The Component Maintenance Manual (CMM) 

 The Illustrated Parts Catalog (IPC). 

Change Note : 

 AMM

 Update Task 32-12-00-000-814-A, as follows: 

− If your manual contains Fig. 32-12-00-990-014-A00, then replace the illustration by 

Figure 1 of this MCNM − If your manual contains Fig. 32-12-00-990-014-A01, then replace the illustration by 

Figure 2 of this MCNM 

− If your manual contains Subtask 32-12-00-020-014-A00, then change step (2), as 

follows: 

(2) Remove the nut (7), the two washers (6A), the washer (6B) and the screw (8). 

− If your manual contains Subtask 32-12-00-020-014-A01, then change step (2), as 

follows: 

(2) Remove the nut (7), the washer (6), the bearing-sleeve (6A), the washer (8) and the 

screw (9). 

 Update Task 32-12-00-400-814-A, as follows: 

− If your manual contains Fig. 32-12-00-990-024-A00, then replace the illustration by 

Figure 1 of this MCNM − If your manual contains Fig. 32-12-00-990-024-A01, then replace the illustration by 

Figure 2 of this MCNM 

− If your manual contains Subtask 32-12-00-420-014-A00, then replace the steps (2) 

and (3) by the following text, and re-identify step (4) accordingly: 

(2) Connect the rod assembly (4) to the fitting on the gear 

(a) Put the thin washer (6B) on the screw (8). 

(b) Hold the rod-end (9) in position on the fitting, then install the screw (8). 

(c) Install the two thick washers (6A) and the nut (7) on the screw (8). 
Manual Change Notification – Maintenance Documentation 

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Page 2 of 10 

(d) Torque the nut (7) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(e) Safety the nut (7), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

− If your manual contains Subtask 32-12-00-420-014-A01, then replace the steps (2) 

thru (4), by the following text, and re-identify step (5) accordingly: 

(2) Connect the rod assembly (4) to the fitting on the gear 

(a) Put the washer (8) on the screw (9). 

(b) Hold the rod-end (10) in position on the fitting, then install the screw (9). 

(c) Install the bearing-sleeve (6A), the washer (6) and the nut (7) on the screw (9). 

(d) Torque the nut (7) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(e) Safety the nut (7), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

 Update Task 12-21-07-640-843-A, as follows: 

− If the Messier-Dowty MLG configuration is applicable, then change step (1) of 

Subtask 12-21-07-030-023-A00, as follows: 

(1) At the outboard door (8) of LH MLG 

(a) Remove and discard the cotter pin (7). 

(b) Remove the nut (6), the two washers (5A), the washer (5B) and the screw (2). 

(c) Move the rod assembly (4) away from the eye-bolt (3). 

− If the Goodrich MLG configuration is applicable, then change step (1) of Subtask 12-

21-07-030-023-A00, as follows: 

(1) At the outboard door (8) of LH MLG 

(a) Remove and discard the cotter pin (7). 

(b) Remove the nut (6), one washer (5), the bearing-sleeve (5A), one washer (5) and the 

screw (2). 

(c) Move the rod assembly (4) away from the eye-bolt (3). 

− If the Messier-Dowty MLG configuration is applicable, then replace the steps (1) thru 

(5) of Subtask 12-21-07-430-023-A00, by this text: 

(1) Put the thin washer (5B) on the screw (2). 

(2) Hold the rod assembly (4) in position on the eyebolt (3) on LH MLG, then install the 

screw (2). 

(3) Install the two thick washers (5A) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(5) Safety the nut (6), with a new cotter-pin (7) (Refer to Task 20-14-09-910-812 for more 

data). 

(6) Do the steps (1) thru (5) again, to connect the rod assembly to the eyebolt on the RH 

MLG. 

− If the Goodrich MLG configuration is applicable, then replace the steps (1) thru (5) of 

Subtask 12-21-07-430-023-A00, by this text: 

(1) Put one washer (5) on the screw (2). 
Manual Change Notification – Maintenance Documentation 

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OCT 28/11 MCNM F100-147

Page 3 of 10 

(2) Hold the rod assembly (4) in position on the eyebolt (3) on LH MLG, then install the 

screw (2). 

(3) Install the bearing-sleeve (5A), one washer (5) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(5) Safety the nut (6), with a new cotter-pin (7) (Refer to Task 20-14-09-910-812 for more 

data). 

(6) Do the steps (1) thru (5) again, to connect the rod assembly to the eyebolt on the RH 

MLG. 

− Update View B of Fig. 12-21-07-990-133-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 or Figure 2 (as applicable) of this MCNM − Make sure that the identification of the attaching-parts in View B of Fig. 12-21-07-

990-133-A00 complies with the contents of Subtask 12-21-07-030-023-A00. 

 If your manual contains Task 32-11-01-000-814-A, then update this Task, as follows: 

− Change step (3)(b) of Subtask 32-11-01-020-014-A00, as follows: 

(b) Remove the nut (21), the two washers (24A), the washer (24B) and the screw (22). 

− Update View E of Fig. 32-11-01-991-044-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 of this MCNM 

− Make sure that the identification of the attaching-parts in View E of Fig. 32-11-01-

991-044-A00 complies with the contents of Subtask 32-11-01-020-014-A00. 

 If your manual contains Task 32-11-01-000-814-B, then update this Task, as follows: 

− Change step (1)(c) of Subtask 32-11-01-020-014-B00, as follows: 

(c) Remove the screw (17), the washer (18) and the bearing-sleeve (15A). 

− Update View C of Fig. 32-11-01-991-044-B00, in accordance with the attaching-parts 

shown in View A on Figure 2 of this MCNM 

− Make sure that the identification of the attaching-parts in View C of Fig. 32-11-01-

991-044-B00 complies with the contents of Subtask 32-11-01-020-014-B00. 

 If your manual contains Task 32-11-01-400-814-A, then update this Task, as follows: 

− Add the following step to Subtask 32-11-01-965-014-A00: 

(3) On the new MLG leg, remove and discard the connecting parts for the outboard-door 

rod-assembly 

(a) Remove and discard the cotter-pin (25) (Refer to Fig. 32-11-01-991-064-A00) 

(b) Remove and discard the connecting-parts from the eyebolt. 

− Change step (23) of Subtask 32-11-01-420-014-A00, as follows: 
Manual Change Notification – Maintenance Documentation 

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OCT 28/11 MCNM F100-147

Page 4 of 10 

(23) Connect the rod assembly (23) to the main-fitting on the gear 

(a) Remove the lacing-tape that was installed during the removal procedure. 

(b) Put the thin washer (24B) on the screw (22). 

(c) Hold the rod assembly (23) in position on the eyebolt, then install the screw (22). 

(d) Install the two thick washers (24A) and the nut (21) on the screw (22). 

(e) Torque the nut (21) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(f) Safety the nut (21), with a new cotter-pin (25) (Refer to Task 20-14-09-910-812 for 

more data). 

− Update View E of Fig. 32-11-01-991-064-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 of this MCNM 

− Make sure that the identification of the attaching-parts in View E of Fig. 32-11-01-

991-064-A00 complies with the contents of Subtask 32-11-01-420-014-A00. 

 If your manual contains Task 32-11-01-400-814-B, then update this Task, as follows: 

− Add the following step to Subtask 32-11-01-965-014-B00: 

(3) On the new MLG leg, remove and discard the connecting parts for the outboard-door 

rod-assembly 

(a) Remove and discard the cotter-pin (14) (Refer to Fig. 32-11-01-991-064-B00) 

(b) Remove the connecting-parts from the eyebolt. 

(c) Temporarily attach the bearing-sleeve (15A) to the eyebolt, with a tie-wrap. 

(d) Discard the other connecting-parts. 

− Change step (12) of Subtask 32-11-01-420-014-B00, as follows: 

(12) Connect the rod assembly (19) to the main-fitting on the gear 

(a) Remove the lacing-tape that was installed during the removal procedure. 

(b) Put the washer (18) on the screw (17). 

(c) Hold the rod assembly (19) in position on the eyebolt, then install the screw (17). 

(d) Install the bearing-sleeve (15A), the washer (15) and the nut (16) on the screw (17). 

(e) Torque the nut (16) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(f) Safety the nut (16), with a new cotter-pin (14) (Refer to Task 20-14-09-910-812 for 

more data). 

− Update View C of Fig. 32-11-01-991-064-B00, in accordance with the attaching-parts 

shown in View A on Figure 2 of this MCNM 

− Make sure that the identification of the attaching-parts in View C of Fig. 32-11-01-

991-064-B00 complies with the contents of Subtask 32-11-01-420-014-B00. 

 If your manual contains Task 32-11-02-000-814-A, then update this Task, as follows: 

− Change step (3)(b) of Subtask 32-11-02-020-014-A00, as follows: 

(b) Remove the nut (27), the two washers (28A), the washer (28B) and the screw (29). − Update View C of Fig. 32-11-02-991-014-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 of this MCNM − Make sure that the identification of the attaching-parts in View C of Fig. 32-11-02-

991-014-A00 complies with step (3) of Subtask 32-11-02-020-014-A00. 
Manual Change Notification – Maintenance Documentation 

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Page 5 of 10 

 If your manual contains Task 32-11-02-000-814-B, then update this Task, as follows: 

− Change step (2)(c) of Subtask 32-11-02-020-014-B00, as follows: 

(c) Remove the bearing-sleeve (20), the washers (22) and the screw (29). 

− Update View B of Fig. 32-11-02-991-024-B00, in accordance with the attaching-parts 

shown in View A on Figure 2 of this MCNM 

− Make sure that the identification of the attaching-parts in View B of Fig. 32-11-02-

991-024-B00 complies with step (2) of Subtask 32-11-02-020-014-B00. 

 If your manual contains Task 32-11-02-400-814-A, then update this Task, as follows: 

− Change step (24) of Subtask 32-11-02-420-014-A00, as follows: 

(24) Connect the outboard door link 

(a) Remove the tie that was installed during the removal procedure. 

(b) Put the thin washer (28B) on the screw (29). 

(c) Hold the link (30) in position on the eyebolt, then install the screw (29). 

(d) Install the two thick washers (28A) and the nut (27) on the screw (29). 

(e) Torque the nut (27) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(f) Safety the nut (27), with a new cotter-pin (26) (Refer to Task 20-14-09-910-812 for 

more data). 

− Update View C of Fig. 32-11-02-991-034-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 of this MCNM − Make sure that the identification of the attaching-parts in View C of Fig. 32-11-02-

991-034-A00 complies with step (24) of Subtask 32-11-02-420-014-A00. 

 If your manual contains Task 32-11-02-400-814-B, then update this Task, as follows: 

− Change step (13) of Subtask 32-11-02-420-014-B00, as follows: 

(13) Connect the outboard door link 

(a) Remove the lacing-tape that was installed during the removal procedure. 

(b) Put one washer (22) on the screw (19). 

(c) Hold the outboard door link (21) in position on the eyebolt, then install the screw (19). 

(d) Install the bearing-sleeve (20), one washer (22) and the nut (18) on the screw (19). 

(e) Torque the nut (18) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(f) Safety the nut (18), with a new cotter-pin (17) (Refer to Task 20-14-09-910-812 for 

more data). 

− Update View B of Fig. 32-11-02-991-034-B00, in accordance with the attaching-parts 

shown in View A on Figure 2 of this MCNM 

− Make sure that the identification of the attaching-parts in View B of Fig. 32-11-02-

991-034-B00 complies with step (13) of Subtask 32-11-02-420-014-B00. 
Manual Change Notification – Maintenance Documentation 

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Page 6 of 10 

 Update Task 52-82-01-400-814-A, as follows: 

− If the Messier-Dowty MLG configuration is applicable, then change step (2) of 

Subtask 52-82-01-030-024-A00, as follows: 

(2) Remove the nut (6), the two washers (7A), the washer (7B) and the screw (2). 

− If the Goodrich MLG configuration is applicable, then change step (2) of Subtask 52-

82-01-030-024-A00, as follows: 

(2) Remove the nut (6), one washer (7), the bearing-sleeve (7A), one washer (7) and the 

screw (2). 

− If the Messier-Dowty MLG configuration is applicable, then replace the steps (1) thru 

(3) of Subtask 52-82-01-430-054-A00, by this text: 

(1) Put the thin washer (7B) on the screw (2). 

(2) Hold the rod assembly (4) in position on the fitting (3), then install the screw (2). 

(3) Install the two thick washers (7A) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(5) Safety the nut (6), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

− If the Goodrich MLG configuration is applicable, then replace the steps (1) thru (3) of 

Subtask 52-82-01-430-054-A00, by this text: 

(1) Put one washer (7) on the screw (2). 

(2) Hold the rod assembly (4) in position on the fitting (3), then install the screw (2). 

(3) Install the bearing-sleeve (7A), one washer (7) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(5) Safety the nut (6), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

− Update View B of Fig. 52-82-01-990-084-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 or Figure 2 (as applicable) of this MCNM 

− Make sure that the identification of the attaching-parts in View B of Fig. 52-82-01-

990-084-A00 complies with the contents of Subtask 52-82-01-430-054-A00. 

 Update Task 52-82-03-000-814-A, as follows: 

− If your manual contains Fig. 52-82-03-990-014-A00, then update View B of this figure, 

in accordance with the attaching-parts shown in View A on Figure 1 of this MCNM − If your manual contains Fig. 52-82-03-990-014-A01, then update View B of this figure, 

in accordance with the attaching-parts shown in View A on Figure 2 of this MCNM. 

 Update Task 52-82-03-400-814-A, as follows: 

− If your manual contains Fig. 52-82-03-990-024-A00, then update View B of this figure, 

in accordance with the attaching-parts shown in View A on Figure 1 of this MCNM − If your manual contains Fig. 52-82-03-990-024-A01, then update View B of this figure, 

in accordance with the attaching-parts shown in View A on Figure 2 of this MCNM 
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− If your manual contains Subtask 52-82-03-420-014-A00, then replace step (12) by the 

following text: 

(12) Connect the rod assembly to the fitting on the gear 

(a) Put the thin washer on the screw. 

(b) Hold the rod assembly in position on the fitting, then install the screw. 

(c) Install the two thick washers and the nut on the screw. 

(d) Torque the nut to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(e) Safety the nut, with a new cotter-pin (3) (Refer to Task 20-14-09-910-812 for more 

data). 

− If your manual contains Subtask 52-82-03-420-014-A01, then replace step (12) by the 

following text: 

(12) Connect the rod assembly to the fitting on the gear 

(a) Put the washer on the screw. 

(b) Hold the rod assembly in position on the fitting, then install the screw. 

(c) Install the bearing-sleeve, the washer and the nut on the screw. 

(d) Torque the nut to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(e) Safety the nut, with a new cotter-pin (3) (Refer to Task 20-14-09-910-812 for more 

data). 

 Update Task 52-82-04-400-814-A, as follows: 

− If the Messier-Dowty MLG configuration is applicable, then change step (2) of 

Subtask 52-82-04-030-024-A00, as follows: 

(2) Remove the nut (6), the two washers (7A), the washer (7B) and the screw (2). 

− If the Goodrich MLG configuration is applicable, then change step (2) of Subtask 52-

82-04-030-024-A00, as follows: 

(2) Remove the nut (6), one washer (7), the bearing-sleeve (7A), one washer (7) and the 

screw (2). 

− If the Messier-Dowty MLG configuration is applicable, then replace the steps (1) thru 

(4) of Subtask 52-82-04-430-014-A00, by this text: 

(1) Put the thin washer (7B) on the screw (2). 

(2) Hold the rod assembly (4) in position on the fitting (3), then install the screw (2). 

(3) Install the two thick washers (7A) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 

(5) Safety the nut (6), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

− If the Goodrich MLG configuration is applicable, then replace the steps (1) thru (4) of 

Subtask 52-82-04-430-014-A00, by this text: 

(1) Put one washer (7) on the screw (2). 

(2) Hold the rod assembly (4) in position on the fitting (3), then install the screw (2). 

(3) Install the bearing-sleeve (7A), one washer (7) and the nut (6) on the screw (2). 

(4) Torque the nut (6) to between 1,7 – 3,3 Nm (15 – 30 lbf.in). 
Manual Change Notification – Maintenance Documentation 

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Page 8 of 10 

(5) Safety the nut (6), with a new cotter-pin (5) (Refer to Task 20-14-09-910-812 for more 

data). 

− Update View B of Fig. 52-82-04-990-034-A00, in accordance with the attaching-parts 

shown in View A on Figure 1 or Figure 2 (as applicable) of this MCNM − Make sure that the identification of the attaching-parts in View B of Fig. 52-82-04-

990-034-A00 complies with the contents of Subtask 52-82-04-430-014-A00. 

 CMM

 If applicable, update CMM 52-82-05, as follows: 

− Incorporate the new MLG Outboard Door Assemblies, with use of paragraph 1.M. 

”Interchangeability or Intermixability of Parts” given in SBF100-52-080 and SBF100-

52-090. 

− Incorporate the Hilok-bolt attachments as given in Part 2 of SBF100-52-090. 

 IPC

 If applicable, update Figure 32-12-00-01 (Messier-Dowty MLG configuration) or Figure 32-12-

00-01A (Goodrich MLG configuration), as follows: 

− Replace the existing connecting-parts (ref Fig. Items 150 thru 180) for the Rod Assy 

(ref Fig. Item 020), by the connecting-parts as given in Part 3 of SBF100-52-090. 

 If applicable, update Figure 52-82-03-01B, as follows: 

− Replace the existing attaching-parts (ref Fig. Items 270 thru 290) for the Bracket (ref 

Fig. Item 250/260), by the Hilok-bolt attachments as given in Part 2 of SBF100-52-

090 

− In the Parts-list, update the partnumber of the Door Assy (ref Fig. Items 020 and 030), 

with use of paragraph 1.M. ”Interchangeability or Intermixability of Parts” given in 

SBF100-52-080 and SBF100-52-090. 

NOTE: If you have a Documentation Revision Service (DRS) with Fokker Services, this 

information will be included into your manuals at the earliest opportunity. 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

OCT 28/11 MCNM F100-147

Page 9 of 10 

Door Operating Mechanism – Removal/Installation (Messier-Dowty MLG configuration) 

Figure 1 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

OCT 28/11 MCNM F100-147

Page 10 of 10 

Door Operating Mechanism – Removal/Installation (Goodrich MLG configuration) 

Figure 2