Service Bulletin 

 Fokker Services B.V. 

 Prepared Function / Note Date 

 gelder-rg02568 Dec 09/14 

 Colleague Check 

 moen-hm02430 Dec 09/14 

 Manager Final Approval 

 benthem-eb01865 Dec 10/14 

 Office of Airworthiness Approval 

 reinier.vanoosten Dec 11/14 

Status: 

Released 

Revision: 

3 

Released date: (Mmm dd/yy) 

Dec 11/14 

Security class: 

UNCLASSIFIED 

F27 Generic SB no.: 

SBF27-28-070 

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. 

EASA approved procedure for electronic sign-off

F27 Generic SB 

SBF27-28-070 

Revision 3 

FUEL - GENERAL

Introduction of Fuel Airworthiness Limitation Items (ALI) and Critical Design 

Configuration Control Limitations (CDCCL) for the F27 Mk200/300/400/500/600/700 
Service Bulletin 

Fokker F27 

Jun 30/06 SBF27-28-070 

Revision 3, Dec 11/14 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. 

1. Planning Information

A. Effectivity 

(1) All F27 Mk200/300/400/500/600/700 aircraft within the serial number range: 

10102 thru 10692 

NOTE: F27 Mk100 is not affected by the Fuel Tank Safety Program. 

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

B. Concurrent Requirements 

(1) Not applicable. 

C. Reason 

(1) In accordance with the requirements of SFAR no. 88 Amendment 21-78 and 

INT/POL/25/12 Fuel Tank Safety, a safety review has been conducted on the F27 

Mk200/300/400/500/600/700 fuel tank system and components that affect fuel tank 

system safety. 

Page 1 2 3 4 5 6 7 8 9 10 

Revision 3 3 3 3 3 3 3 3 3 3 

FUEL

"This Service Bulletin is associated with the Fuel Tank Safety Program." 

Fuel - Introduction of Fuel Airworthiness Limitation Items (ALI) and Critical Design 

Configuration Control Limitations (CDCCL) for the F27 Mk200/300/400/500/600/700. 
Service Bulletin 

Fokker F27 

SBF27-28-070 Jun 30/06 

Page 2 Revision 3, Dec 11/14 

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. 

Reason for Revision

(2) This revision is made to: 

- Update the Fuel Airworthiness Limitation Items (ALI) table. 

Task descriptions added to Fuel ALI’s 280000-00-01 and 280000-00-02. 

- Update the Critical Design Configuration Control Limitations (CDCCL) table 

 CDCCL 11.1 and 11.2 added. 

- Change the Compliance paragraph. 

- Add ECR016135 to the References paragraph. 

D. Description 

(1) Based on the results of the safety review, this Service Bulletin specifies the Fuel 

Airworthiness Limitation Items (ALI) and the Critical Design Configuration Control 

Limitations (CDCCL) required to prevent the development of unsafe conditions within 

the fuel system. 

Fuel Airworthiness Limitation Items (ALI): as applied to the Fuel Tank system safety 

policy, this term means fuel system mandatory maintenance inspections determined 

necessary to ensure that unsafe conditions do not arise in the fuel system throughout 

the operational life of the airplane. 

Critical Design Configuration Control Limitations (CDCCL): as applied to the Fuel 

Tank system safety policy, this term refers to a feature of any aircraft system which 

must be retained during modification, change, repair or scheduled maintenance to 

ensure that an unsafe condition does not develop in the fuel system. 

Operators are expected to demonstrate to their Airworthiness Authority Maintenance 

Inspector that the required configuration control systems are in place to ensure that 

CDCCL’s are properly identified and managed. 

E. Compliance 

(1) Recommended. 

Fokker Services recommends to incorporate and to adhere to the information in this 

Service Bulletin in accordance with the compliance terms as specified in the (new or 

revised) EASA Airworthiness Directive. 

NOTE: EASA Airworthiness Directive 2014-0105, has been issued with respect to 

this subject. 

NOTE: It is expected that EASA will issue a (new or revised) Airworthiness Directive 

(AD) with respect to this subject. 

Refer to the EASA website for the publication of a Proposed Airworthiness 

Directive for comments. 
Service Bulletin 

Fokker F27 

Jun 30/06 SBF27-28-070 

Revision 3, Dec 11/14 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. 

F. Approval 

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

EASA.21J.059. 

G. Manpower 

(1) None. 

H. Weight and Balance 

(1) Weight change: None 

Indexchange: None. 

I. Electrical Load Data 

(1) Not changed. 

J. Software Accomplishment Summary 

(1) Not applicable. 

K. References 

(1) Fokker internal reference(s): 

- Fokker Services report TE-0899. 

- ECR016135 

L. Publications Affected 

(1) This SB affects the publications listed below: 

(a) Maintenance Documentation

- F27 Maintenance Manual (MM). 

- F27 Illustrated Parts Catalog (IPC). 

(b) Maintenance Programs

- F27 Customized Maintenance Program (CMP) 

- F27 Inspection Guide 

- F27 Maintenance Data 

- F27 Maintenance Schedule. 

The affected maintenance program change is described in: 

“3. Accomplishment Instructions”. 
Service Bulletin 

Fokker F27 

SBF27-28-070 Jun 30/06 

Page 4 Revision 3, Dec 11/14 

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. 

(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 - 

NOTE: If “YES”, the changed ICA is described in the “Accomplishment 

Instructions” of this SB. 

(d) Operational Documentation

Not affected. 

(2) You have the possibility to send your SB feedback to Fokker Services per “Reporting 

Quality Form”. 

This form is located on the last SB page. 

(3) For incorporation of this Service Bulletin in your documentation refer to 

SBF27-00-001 (Service Bulletin Introduction, section 4 "Incorporation of Service 

Bulletins in Documentation of Fokker Services"). 

M. Interchangeability or Intermixability of Parts 

(1) Not applicable. 

2. Material Information

A. Material – Price and Availability 

(1) Not applicable. 

B. Material Required 

(1) Not applicable. 

C. Tooling – Price and Availability 

(1) Not applicable. 

D. Drawings Required 

(1) Not applicable. 
Service Bulletin 

Fokker F27 

Jun 30/06 SBF27-28-070 

Revision 3, Dec 11/14 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. 

3. Accomplishment Instructions

A. Fuel Airworthiness Limitation Items 

As applied to Fuel Tank system safety policy, this term means fuel system mandatory 

maintenance inspections determined necessary to ensure that unsafe conditions do not arise 

in the fuel system throughout the operational life of the airplane. 

FUEL AIRWORTHINESS LIMITATION ITEMS 

Tasknumber Task Description Interval Effectivity Initial* Repeat* 

280000-01 DETAILED INSPECTION OF THE ELECTRICAL 

BONDING (MAIN TANKS).

A detailed inspection of the electrical bonding 

provisions of fuel lines, ventilation lines and 

components inside or connected to the wing main 

tanks and of the bonding provisions of the collector 

tanks shall be carried out to verify all bonding 

provisions required per design are present, properly 

installed and in good condition. 

Anomalies shall be corrected. 

01/01/2013 

Note 1 

8 YR ALL 

280000-02 DETAILED INSPECTION OF THE DRAIN HOLES 

AND DRAIN PATHS IN THE DRY BAY ZONE. 

A detailed inspection of the drain holes and drain 

paths in the dry bay zones adjacent to wing main 

tanks shall be carried out to verify the following: 

o Dry bay is clean 

o Drain holes and drain paths are clean and free of 

any obstruction 

Anomalies shall be corrected. 

01/01/2008 2 YR ALL 

* Not later than 

Note 1: The initial inspection shall be done not later than January 1, 2013 except for bonding 

provisions introduced through SBF27-28-071 and SBF27-28-072. For bonding installed 

with SBF27-28-71 or SBF27-28-072 the initial inspection date is the accomplishment date 

of that applicable Service Bulletin with which the bonding provisions have been 

introduced. 
Service Bulletin 

Fokker F27 

SBF27-28-070 Jun 30/06 

Page 6 Revision 3, Dec 11/14 

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. 

B. Exceptional short-term extensions 

Since Fuel ALI Maintenance/Inspection intervals are generally not determined from 

calculations in which failure rate data is known with a high level of confidence, an 

exceptional short-term extension for a specific Fuel ALI interval may be made on one 

aircraft for a limited period of time without jeopardising safety. 

The term 'exceptional short-term extension' is defined as an increase in a Fuel ALI interval 

that may be needed to cover an uncontrollable or unexpected situation. Repeated use of 

such extensions, either on the same aircraft or on similar aircraft in the operator's fleet, 

should not be used as a substitute for good management practices. 

Unless noted adjacent to the task, for all Fuel ALI’s identified in this document, it has been 

accepted by the Primary Certification Office (EASA) that short-term extensions up to the 

following maximum values may be granted without consultation with that office. Requests 

for extensions in excess of these values must be submitted with full justification to the 

Primary Certification Office (EASA) such that approval, if granted, can be given prior to 

their use. 

- Fuel ALI’s controlled by Flight Hours (FH) 

Extensions up to 10% or 500 FH (whichever is the lesser) may exceptionally be granted 

on Fuel ALI intervals quoted in terms of flight hours. 

- Fuel ALI’s controlled by Flight Cycles (FC) 

Extensions up to 5% or 250 FC (whichever is the lesser) may exceptionally be granted 

on Fuel ALI intervals quoted in terms of flight cycles or landings. 

- Fuel ALI’s controlled by Calendar Time (MO) 

Where the repeat interval is 12 months or less, extensions up to 10% or 1 month 

(whichever is the lesser) may exceptionally be granted on Fuel ALI intervals quoted in 

terms of months. 

Where the repeat interval is greater than 12 months but less than 3 years, extensions up 

to 2 months may exceptionally be granted. 

Where the repeat interval is 3 years or greater, extensions up to 3 months may 

exceptionally be granted. 

It is the operator's responsibility to identify appropriate procedures with his local 

regulatory authority for the control and development of his maintenance program. (Note 

EASA: The operator should keep a record of short term extensions given for Fuel 

Airworthiness Limitations) 

This paragraph in the Fuel Airworthiness Limitation Item document is written to confirm 

to the local regulatory authority that exceptional short-term extensions of Fuel ALI 

intervals are permissible. Approval of such extensions rests with the local authority in the 

same way as it does for any other scheduled maintenance task interval extension. 
Service Bulletin 

Fokker F27 

Jun 30/06 SBF27-28-070 

Revision 3, Dec 11/14 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. 

C. Critical Design Configuration Control Limitations (CDCCL) 

As applied to the Fuel Tank system safety policy, this term refers to a feature of any 

aircraft system which must be retained during modification, change, repair or scheduled 

maintenance to ensure that an unsafe condition does not develop in the fuel system. 

CRITICAL DESIGN CONFIGURATION CONTROL LIMITATIONS 

CDCCL 

number 

Component(s) CDCCL Description Effectivity Vendor

(note 1) 

CDCCL-approved

part numbers 

(note 1) 

1.1 FQIS probes in 

wing main tanks 

It shall be ensured that only FQIS 

probes with a part number 

approved by the TCH under Fuel 

Tank Safety requirements for 

installation in the wing main tanks 

will be installed on the aircraft. 

All a/c Honeywell 

Inc 

Commercial 

Aviation 

FG250A4 

FG220A77 

FG220A88 

1.2 FQIS probes in 

wing main tanks 

It shall be ensured that the 

approved component maintenance 

and repair procedures are adhered 

to during shop maintenance. 

All a/c Honeywell 

Inc 

Commercial 

Aviation 

FG250A4 

FG220A77 

FG220A88 

2.1 FQIS probe / 

level sensor 

inboard tank 

It shall be ensured that only a FQIS 

probe / level sensor assembly with 

a part number approved by the TCH 

under Fuel Tank Safety 

requirements for installation in the 

inboard tank will be installed on the 

aircraft. 

A/c with 

inboard tanks 

Flight 

Refuelling 

(Eaton 

Aerospace 

Ltd) 

9201000-198 

9201000-199 

9201000-200 

9201000-201 

9201000-206 

2.2 FQIS probe / 

level sensor 

inboard tank 

It shall be ensured that the 

approved component maintenance 

and repair procedures are adhered 

to during shop maintenance. 

A/c with 

inboard tanks 

Flight 

Refuelling 

(Eaton 

Aerospace 

Ltd) 

9201000-198 

9201000-199 

9201000-200 

9201000-201 

9201000-206 

3 FQIS wiring 

outside fuel 

tanks 

It shall be ensured that repairs of 

wiring near to any FQIS wiring 

external to the fuel tanks will not 

increase the risk of a hot short of 

FQIS wires. 

All a/c N.A. N.A. 

4 Bonding of 

collector tanks 

and of fuel 

lines, ventilation 

lines and 

components, 

wing main tanks 

It shall be ensured that the 

configuration and quality of the 

bonding provisions of fuel lines, 

ventilation lines and components 

inside or connected to the wing 

main tanks and the bonding 

provisions of the collector tanks are 

conforming to the design (ref. NC 

4.610/xxx). 

All a/c N.A. N.A. 
Service Bulletin 

Fokker F27 

SBF27-28-070 Jun 30/06 

Page 8 Revision 3, Dec 11/14 

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. 

CRITICAL DESIGN CONFIGURATION CONTROL LIMITATIONS 

CDCCL 

number 

Component(s) CDCCL Description Effectivity Vendor

(note 1) 

CDCCL-approved

part numbers 

(note 1) 

5 Bonding of fuel 

lines, ventilation 

lines and 

components, 

inboard tanks 

It shall be ensured that the 

configuration and quality of the 

bonding provisions of fuel lines, 

ventilation lines and components 

inside or connected to the inboard 

tanks are conforming to the design 

(ref. NC 4.610/xxx). 

A/c with 

inboard tanks 

N.A. N.A. 

6.1 Anti-spray cover 

of main tank 

fueling shut-off 

valve 

It shall be ensured that an antispray cover is properly installed 

over the discharge port of the 

fueling shut-off valve of each main 

wing tank, conform the design. 

A/c post 

SBF27-28-071 

N.A. N.A. 

6.2 Anti-spray cover 

of main tank 

fueling shut-off 

valve 

It shall be ensured that only an antispray cover with a part number 

approved by the TCH under Fuel 

Tank Safety requirements will be 

installed on the aircraft. 

A/c post 

SBF27-28-071 

Fokker 

Services 

Refer to 

SBF27-28-071 

7.1 Collector Tank 

Level float 

switch 

It shall be ensured that only a 

collector tank level float switch 

assembly with a part number 

approved by the TCH under Fuel 

Tank Safety requirements will be 

installed on the aircraft. 

A/c with 

inboard tanks 

Eaton 

Aerospace 

Ltd 

3515000-127 

3515000-135 

7.2 Collector Tank 

Level float 

switch 

It shall be ensured that the 

approved component maintenance 

and repair procedures are adhered 

to during shop maintenance. 

A/c with 

inboard tanks 

Eaton 

Aerospace 

Ltd 

3515000-127 

3515000-135 

8.1 Level control 

pilot valve 

It shall be ensured that only a level 

control pilot valve with a part 

number approved by the TCH under 

Fuel Tank Safety requirements will 

be installed on the aircraft. 

All a/c Parker 

Hannifin 

Corporation 

F62B0050, 

F62B0050M1, 

F62B0050M2, 

F62B0050M3 

8.2 Level control 

pilot valve 

It shall be ensured that the 

approved component maintenance 

and repair procedures are adhered 

to during shop maintenance. 

All a/c Parker 

Hannifin 

Corporation 

F62B0050, 

F62B0050M1, 

F62B0050M2, 

F62B0050M3 

8.3 Fuse in wiring 

of LCPV 

solenoid 

It shall be ensured that the overcurrent protection fuse (in-line 

junction with integral fuse) is 

properly installed in the power 

supply wire of each LCPV solenoid, 

close to the point where the wiring 

enters the tank, and is undamaged. 

A/c post 

SBF27-28-069 

(note 2) 

Fokker 

Services 

DME-F07 

8.4 Fuse in wiring 

of LCPV 

solenoid 

It shall be ensured that only a fuse 

junction with a part number 

approved by the TCH under Fuel 

Tank Safety requirements for the 

specific application will be installed 

in the power supply wire of the 

LCPV solenoid. 

A/c post 

SBF27-28-069 

(note 2) 

Fokker 

Services 

DME-F07 
Service Bulletin 

Fokker F27 

Jun 30/06 SBF27-28-070 

Revision 3, Dec 11/14 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. 

CRITICAL DESIGN CONFIGURATION CONTROL LIMITATIONS 

CDCCL 

number 

Component(s) CDCCL Description Effectivity Vendor

(note 1) 

CDCCL-approved

part numbers 

(note 1) 

9.1 Fuel Quantity 

Indicator wing 

main tank 

It shall be ensured that only a wing 

main tank Fuel Quantity Indicator 

with a part number approved by the 

TCH under Fuel Tank Safety 

requirements will be installed on the 

aircraft. 

All a/c Honeywell 

Inc 

Commercial 

Aviation 

JG130A76 

JG130A77 

JG130A94 

JG130A97 

JG130A98 

JG130A100 

9.2 Fuel Quantity 

Indicator wing 

main tank 

It shall be ensured that the 

approved component maintenance 

and repair procedures are adhered 

to during shop maintenance. 

All a/c Honeywell 

Inc 

Commercial 

Aviation 

JG130A76 

JG130A77 

JG130A94 

JG130A97 

JG130A98 

JG130A100 

10 Drain holes and 

drain paths of 

wing dry bay 

zones 

It shall be ensured that the drain 

holes and drain paths of the dry bay 

zones adjacent to the wing tanks 

are open and unobstructed. 

All a/c N.A. N.A. 

11.1 Flame trap 

inboard tank 

compartment 

drain line. 

It shall be ensured that a flame trap 

is properly installed in the inboard 

tank compartment drain line. 

A/c with inboard 

tanks

N.A. N.A. 

11.2 Flame 

trap/flame 

arrester inboard 

tank 

compartment 

drain line. 

It shall be ensured that only a flame 

trap or flame arrester with a part 

number approved by the TCH under 

Fuel Tank Safety requirements will 

be installed on the aircraft. 

A/c with 

inboard tanks 

Fokker 

Services 

AMAL 

8680-127-401 

8680-127-407 

8680-127-409 

8680-127-411 

8680-127-412 

188-26-15-45FA188-206-15-45SS 

188-26-15-45SS316 

Notes: 

1) Vendor and part number data is only provided where the CDCCL consists of control of part 

number(s) at the installation or of control of application of proper maintenance / repair 

procedures of the part. 

2) Operators that have introduced changes to the manuals in accordance with the instructions in 

the original issue of MCNM-F27-025 (attached to the original issue of SBF27-28-069) must 

make additional changes to the manuals in accordance with the instructions in revision 1 of 

MCNM F27-025. 

D. Abbreviations. 

A/c Aircraft 

FQIS Fuel Quantity Indication System 

LCPV Level Control Pilot Valve 

NC Norm Constructie (Dutch) / Design Standard 

TCH Type Certificate Holder 

YR Year 
Service Bulletin 

Fokker F27 

SBF27-28-070 Jun 30/06 

Page 10 Revision 3, Dec 11/14 

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. 

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. 

* 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. 

Technical Services, Quality Department 

P.O. Box 1357 

2130 EL Hoofddorp 

The Netherlands 

Fax: +31 (0) 88 6280111 or Email : technicalservices@fokker.com