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Page 1OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT

INTERCOSTAL TEE CLIP UPPER SKIN ~ OPEN LINER S-14L-

HOLE (TYPICAL) S-14

INTERCOSTAL STRAP

LOWER HINGE

FITTING FITTING• - FRAME WEB

SUPPORT TEE -

FITTING FASTENER

OUTER CHORD-

BEAR STRAP ' - FITTING S-15L

LOWER SKIN INBD A-A SURFACE HIGH FREQUENCY 0649267

EDDY CURRENT INSPECTION FIGURE 15: LEFT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND AN OPEN LINER HOLE (SHEET 2 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 194 of 204

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

More DataQtyIdentificationNameTaskStep

(a)1-FRAME WEBInspect1

(b)1-FRAME WEBInspect2

(a) Do a surface High Frequency Eddy Current (HFEC) inspection of the frame web around the open hole for any crack in accordance with 757 NDT Manual Part 6, 51-00-19.

(b) Do a surface High Frequency Eddy Current (HFEC) inspection of the frame web around the fitting fastener for any crack in accordance with 757 NDT Manual Part 6, 51-00-19.

FIGURE 15: LEFT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND AN OPEN LINER HOLE (SHEET 3 OF 3) Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 17, 2022 757-53A0120 RB 195 of 204 REQUIREMENTS BULLETIN 757-53A0120

ALERTALERT

Page 3OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT This Figure applies only to: Group 3.

/ STA 1640 STA 1640 S-13R LOWER HINGE

INTERCOSTAL S-14R S-15R - S-16R - .....

FLOOR S-17R 2974757 FIGURE 16: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - GENERAL

VISUAL INSPECTION (SHEET 1 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 196 of 204

Page 4OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT

INTERCOSTAL TEE CLIP

UPPER SKIN

- S-14R S-14 -

INTERCOSTAL STRAP

LOWER HINGE

FITTING FRAME WEB 1 LINER HOLE (TYPICAL)

• SUPPORT TEE

OUTER CHORD

FITTING- BEAR STRAP

• S-15R

LOWER SKIN INBD A-A

• GENERAL VISUAL 2974761

INSPECTION FIGURE 16: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - GENERAL

VISUAL INSPECTION (SHEET 2 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 197 of 204

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

More DataQtyIdentificationNameTaskStep

(a)1-FRAME WEBInspect1

(a) Do a General Visual Inspection of the frame web on the aft side for existing liner hole.

FIGURE 16: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - GENERAL

VISUAL INSPECTION (SHEET 3 OF 3) Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 17, 2022 757-53A0120 RB 198 of 204 REQUIREMENTS BULLETIN 757-53A0120

ALERTALERT

Page 6OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT This Figure applies only to: Group 3.

/ STA 1640 STA 1640 S-13R - LOWER HINGE

INTERCOSTAL S-14R S-15R • S-16R - ............

FLOOR S-17R 2974759 FIGURE 17: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND A PLUGGED LINER HOLE (SHEET 1 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 199 of 204

Page 7OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT

INTERCOSTAL TEE CLIP

• UPPER SKIN S-14R S-14

INTERCOSTAL STRAP

LOWER HINGE

FITTING

FRAME WEB -

WITH ONE A - SUPPORT TEE

FASTENER OR

WITH TWO

FASTENERS

OUTER CHORD

FITTING BEAR STRAP S-15R

A-A LOWER SKIN

FITTING INBD

FASTENER

PLUGGED

LINER HOLE

• FITTING (TYPICAL)

INBD INBD FITTING

WITH ONE WITH TWO

FASTENER FASTENERS SURFACE HIGH FREQUENCY 2974762

EDDY CURRENT INSPECTION FIGURE 17: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND A PLUGGED LINER HOLE (SHEET 2 OF 3) Original Issue: January 17, 2022 Export Controlled ECCN: 9E991 757-53A0120 RB Copyright © Unpublished Work - See page 1 for details. 200 of 204

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

More DataQtyIdentificationNameTaskStep

(a)(b)1-FRAME WEBInspect1

(a) Do a surface High Frequency Eddy Current (HFEC) inspection of the frame web around the fitting fastener and the fastener in the plugged liner hole (if an adjacent second fastener exists) for any crack in accordance with 757 NDT Manual Part 6, 51-00-19.

(b) There can be 1 or 2 fastener hole locations to inspect.

FIGURE 17: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND A PLUGGED LINER HOLE (SHEET 3 OF 3) Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 17, 2022 757-53A0120 RB 201 of 204 REQUIREMENTS BULLETIN 757-53A0120

ALERTALERT

Page 9OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT This Figure applies only to: Group 3.

STA 1640 STA 1640 S-13R 000 LOWER- HINGE

INTERCOSTAL S-14R - S-15R ...° S-16R - - oooooooo FLOOR S-17R 2975793 FIGURE 18: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND AN OPEN LINER HOLE (SHEET 1 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 202 of 204

Page 10OCROpen in PDF

REQUIREMENTS BULLETIN 757-53A0120

ALERT ALERT

INTERCOSTAL TEE CLIP

• UPPER SKIN

•S-14R OPEN LINER S-14 HOLE (TYPICAL)

INTERCOSTAL STRAP

LOWER HINGE

FITTING

FRAME WEB - FITTING

SUPPORT TEE

•

FITTING FASTENER

OUTER CHORD

FITTING BEAR STRAP S-15R

LOWER SKIN INBD A-A SURFACE HIGH FREQUENCY 2975796

EDDY CURRENT INSPECTION FIGURE 18: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND AN OPEN LINER HOLE (SHEET 2 OF 3) Original Issue: January 17, 2022 757-53A0120 RB Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details. 203 of 204

The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

More DataQtyIdentificationNameTaskStep

(a)1-FRAME WEBInspect1

(b)1-FRAME WEBInspect2

(a) Do a surface High Frequency Eddy Current (HFEC) inspection of the frame web around the open hole for any crack in accordance with 757 NDT Manual Part 6, 51-00-19.

(b) Do a surface High Frequency Eddy Current (HFEC) inspection of the frame web around the fitting fastener for any crack in accordance with 757 NDT Manual Part 6, 51-00-19.

FIGURE 18: RIGHT SIDE - FUSELAGE FRAME WEB AT STA 1640 BETWEEN S-14 AND S-15 - SURFACE

HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION AROUND AN OPEN LINER HOLE (SHEET 3 OF 3) Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.

Original Issue: January 17, 2022 757-53A0120 RB 204 of 204 REQUIREMENTS BULLETIN 757-53A0120

ALERTALERT