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Service Bulletin Fokker Services B.V.
Prepared Function / Note Date jeffrey.keetlaer Sep 17/14 Colleague Check poutsma-sp49839 Sep 17/14 Manager Final Approval aroon.siriphant Sep 29/14 Office of Airworthiness Approval visser-hv01800 Oct 27/14
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048
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.
EASA approved procedure for electronic sign-off
F100/70 Generic SB
SBF100-57-048
Revision -
WINGS - TRAILING EDGE AND TRAILING EDGE DEVICES
A One-Time Inspection of the Rib at Wing Station 8700
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 of 12
1. General Information A. General
B. Table of Contents
• Section 1: General Information
• Section 2: Planning Information
• Section 3: Material Information
• Section 4: Accomplishment Instructions
• Service Bulletin Quality Reporting Form and attachments (if applicable):
• List of drawings/parts lists
• Parts List Local source (PLL)
• Parts List Supply (PLS)
• Required drawings C. Service Bulletin Revision History
Revision Date (Mmm dd/yy) Reason for Revision
- Refer to footer First Release
WINGS
Trailing Edge and Trailing Edge Devices - A One-time Inspection of the Rib at Wing Station 8700
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 2 of 12
2. Planning Information A. Effectivity
(1) F28 Mark 0070/0100 aircraft serial numbers:
11244 thru 11585.
NOTE: Aircraft serial number 11577 already incorporated this Service Bulletin and does not require a re-inspection.
B. Concurrent Requirements
(1) Not applicable.
C. Reason
(1) Service experience has shown that cracking can occur in the secondary structure of the aircraft at the rib of wing station 8700 (p/n D15445-013/-014 or lower dash number) in the wing trailing edge section. A one-time inspection is required to investigate if cracks have occurred on Rib 8700.
(2) The reason for this decision is the integrity of the aileron control. The hydraulic actuator assembly, hydraulic lines, the cable pulleys, the anti-upfloat quadrant and the associated mechanical linkages including flutter dampers are all positioned in the area between wing stations 8200 and 9270. The aileron cable pulley assembly is located precisely in the opening of rib 8700. In case the rib fails unpredictable aileron control effects cannot be excluded.
(3) If cracks are found during the accomplishment of this Service Bulletin a repair has to be accomplished before further flight. Contact Fokker Services BV for corrective actions. Depending on the crack length continued revenue operation can be permitted with a dedicated inspection interval.
D. Description
(1) This Service Bulletin tells you how to:
- Gain access to the trailing edge section at the rib of wing station 8700
- Inspect the trailing edge rib at wing station 8700 for cracks on both wings
- Contact Fokker Services in case cracks are found to determine repair action procedure
- Close up the work area.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 3 of 12
E. Compliance
(1) Recommended Fokker Services recommends the accomplishment of this Service Bulletin within one year after the release date 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 ref.
EASA.21J.059.
G. Manpower
(1) Approximately 1 man-hours are nece ssary to do this Service Bulletin on one aircraft.
This table of manpower will help you to schedule and do this Service Bulletin:
Elapsed time (hours) Removal - - - Modification Inspection Installation - - - Testing - - - Total 1.0 1.0
1.0 Instructions Men Man-hours 11 . 0
(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.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 4 of 12
I. Electrical Load Data
(1) Direct Current (DC) Loads:
(a) Not changed.
(2) Alternating Current (AC) Loads:
(a) Not changed.
J. Software Accomplishment Summary
(1) Not applicable.
K. References
(1) Fokker 70/100 Aircraft Maintenance Manual (AMM) L. Publications Affected
(1) This Service Bulletin affects the publications listed below:
(a) Maintenance Documentation
Not affected.
(b) Maintenance Programs Not affected.
(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
- Fokker 70/100 Airworthiness Limitations Section (ALS):
• Fuel Tank Safety (FTS) - X
• Damage Tolerance of Fatigue Critical Structure (FCS) - X
• Certification Maintenance Requirements (CMR) - X NOTE: If “YES”, when not already incorporated, the changed ICA will be incorporated in the MRB, the Airworthiness Limitations Section (ALS) and/or the AMM document(s) 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 Service Bulletin has been carried out on the applicable aircraft.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 5 of 12
(3) You have the possibility to send your SB feedback to Fokker Services per “Service Bulletin Reporting Quality Form”. This form is located on the last Service Bulletin page.
M. Interchangeability or Intermixability of Parts
(1) Not applicable.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 6 of 12
3. 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. Tooling Required
(1) Not applicable.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 7 of 12
4. Accomplishment Instructions
General:
- These instructions are applicable to the RH and LH side of the aircraft.
- If applicable, part numbers for the RH side are given between parentheses.
A. Clear the area around the wing trailing edge at wing station 8700.
Refer to figure 1 B. Open the access panels 536BB (636BB) and 536CB (636CB).
C. If necessary, clean the inspection area and the items to be inspected. Do not remove any lubricants or surface protection.
Refer to figures 2, 3 and 4 D. Perform a detailed inspection on the rib at wing station 8700.
(1) Pay attention to the indicated areas shown in figures 2, 3 and 4. Check for cracks or crack initiation in the area around the forward two quick release fastener holes.
(2) Report all crack findings to Fokker Serv ices BV via MyFokkerfleet.com Q&A (or via TechnicalServices@Fokker.com). Include the aircraft serial number, flight cycles and flight hours in the report. Supply several clear pictures of the crack location and report the crack length.
E. Corrective actions are supplied by Fokker Services on a case-by-case basis. Small cracks may be stop-drilled and re-inspected before repair. Larger cracks can be temporarily repaired with local source materials.
F. Job close-up
(1) Close the access panels 536BB (636BB) and 536CB (636CB).
(2) Remove all tools, materials and equipment from the work area. Make sure that the area is clean.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 8 of 12
Figure 1 – Overall view of inspection location Rib 8700 Rib 9270 Aileron hinge rib Intermediate spar (“Diaphragm”) Aileron hinge bracket at flap track beam WS 8200 (dwg. D15158) See figure 2 View A
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 9 of 12
Figure 2 – View of crack location Crack location View A Rear spar
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 10 of 12
Figure 3 – Shroud box WS 8200-9270 LH Side View Looking up DOF Flap Track Fairing WS 8200 LH Side RIB 8700 LH Side WS 9270 LH Side Rear Spar Intermediate Spar (“Diaphragm”) Crack location OUTB.
Service Bulletin Fokker Services B.V.
Status:
Released Revision:
- Released date: (Mmm dd/yy) Oct 27/14 Security class:
RESTRICTED F100/70 Generic SB no.:
SBF100-57-048 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 11 of 12
Figure 4 – View of crack location (RH Side rib)