# Boeing Service Bulletin A3514: Revision 1, from page 37 - Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2018-0504; AD 2018-19-32 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Boeing Service Bulletin A3514](https://openairdocs.org/service-documents/boeing/a3514.md) - Title as filed: SB-707-00A3514-01-- - Pages: 48 - PDF: https://openairdocs.org/files/sha256/8a/64/8a64985f69d24319e1020557e41eb010dac47ec58cd5c7494ddaef23b1cfefe7 - Page: https://openairdocs.org/service-documents/boeing/a3514/file/8a64985f69d2 ## Text Some pages are OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 37 FIGURE 6: NACELLE NUMBER 1 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 1 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 37 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 38 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. More DataQtyIdentificationNameTaskStep (a)1-Front Spar FittingInspect1 (b) (c)2-Front Spar Fitting Aft Lug Inspect2 (a) Do a magnetic inspection of the front spar fitting to find if the material is aluminum or steel. Use a magnet to find if there is a magnetic force that pulls the magnet to the front spar fitting. If there is a magnetic force, the front spar fitting is made from steel. If there is no magnetic force, the front spar fitting is made from aluminum. (b) For aluminum front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of each aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00- 00, Figure 4 or Figure 23. FIGURE 6: NACELLE NUMBER 1 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 2 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 38 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 39 More DataQtyIdentificationNameTaskStep (c) For steel front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of each aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 13 or Figure 24. FIGURE 6: NACELLE NUMBER 1 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 3 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 39 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 40 FIGURE 7: NACELLE NUMBER 2 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 1 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 40 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 41 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. More DataQtyIdentificationNameTaskStep (a)1-Front Spar FittingInspect1 (b) (c)1-Front Spar Fitting Aft Lug Inspect2 (a) Do a magnetic inspection of the front spar fitting to find if the material is aluminum or steel. Use a magnet to find if there is a magnetic force that pulls the magnet to the front spar fitting. If there is a magnetic force, the front spar fitting is made from steel. If there is no magnetic force, the front spar fitting is made from aluminum. (b) For aluminum front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of the aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 4 or Figure 23. FIGURE 7: NACELLE NUMBER 2 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 2 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 41 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 42 More DataQtyIdentificationNameTaskStep (c) For steel front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of the aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 13 or Figure 24. FIGURE 7: NACELLE NUMBER 2 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 3 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 42 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 43 FIGURE 8: NACELLE NUMBER 3 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 1 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 43 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 44 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. More DataQtyIdentificationNameTaskStep (a)1-Front Spar FittingInspect1 (b) (c)1-Front Spar Fitting Aft Lug Inspect2 (a) Do a magnetic inspection of the front spar fitting to find if the material is aluminum or steel. Use a magnet to find if there is a magnetic force that pulls the magnet to the front spar fitting. If there is a magnetic force, the front spar fitting is made from steel. If there is no magnetic force, the front spar fitting is made from aluminum. (b) For aluminum front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of the aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 4 or Figure 23. FIGURE 8: NACELLE NUMBER 3 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 2 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 44 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 45 More DataQtyIdentificationNameTaskStep (c) For steel front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of the aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 13 or Figure 24. FIGURE 8: NACELLE NUMBER 3 - FRONT SPAR FITTING AFT LUG - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 3 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 45 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 46 FIGURE 9: NACELLE NUMBER 4 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 1 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 46 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 47 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. More DataQtyIdentificationNameTaskStep (a)1-Front Spar FittingInspect1 (b) (c)2-Front Spar Fitting Aft Lug Inspect2 (a) Do a magnetic inspection of the front spar fitting to find if the material is aluminum or steel. Use a magnet to find if there is a magnetic force that pulls the magnet to the front spar fitting. If there is a magnetic force, the front spar fitting is made from steel. If there is no magnetic force, the front spar fitting is made from aluminum. (b) For aluminum front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of each aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00- 00, Figure 4 or Figure 23. FIGURE 9: NACELLE NUMBER 4 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 2 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: July 29, 2004 A3514Revision 1 November 09, 2016 47 of 48 BOEING SERVICE BULLETIN A3514 ALERTALERT ### Page 48 More DataQtyIdentificationNameTaskStep (c) For steel front spar fitting, do a surface HFEC inspection around the lug hole on the two sides of each aft lug of the front spar fitting for any crack in accordance with 707, 720 NDT Manual Part 6, 51-00-00, Figure 13 or Figure 24. FIGURE 9: NACELLE NUMBER 4 - FRONT SPAR FITTING AFT LUGS - SURFACE HIGH FREQUENCY EDDY CURRENT INSPECTION (SHEET 3 OF 3) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 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