Report of inspections Required by Airworthiness Directives, Part 39

BOEING SERVICE BULLETIN 727-53A0233
ALERT

ALERT

Boeing recommends that operators use the format that follows to report the results of the inspections in this
service bulletin to Boeing. Use of this standard format will result in a more rapid review and approval of the data.
A Return to Service Proposal will be provided by Boeing after review of the data.
INTRODUCTION
The following is a summary of the work carried out on airplane ___________ as part of a return to service
workpack.
Airplane Model:
Airplane Registration:
Airplane Variable Number:
Airplane Line Number:
Airplane Serial Number:
Airplane Total Hours / Flight Cycles:
Airplane Flight Cycles Since Scribe Line Introduction:
BACKGROUND
____________ has completed the following work on airplane ___________:
INSPECTIONS:
The following inspections were completed on airplane ___________:
Detailed Visual Inspections:
Skin Lap Joints:
Fuselage skin lap joints between STA _______ To STA _________
Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
Skin Butt Joints:
Fuselage skin butt joints between STA _______ To STA _________
Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
External Approved Repairs:
Fuselage skin around external approved repairs.

Appendix B: REPORTING TEMPLATE - AIRPLANES WITH SCRIBE LINES
(SHEET 1 OF 2)
Original Issue: February 19, 2010
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BOEING SERVICE BULLETIN 727-53A0233
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Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
External Features:
Fuselage skin around external features.
Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
Decals and Fairings:
Fuselage skin around decals and fairings.
Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
Maximum Observed Scribe Line Depth:
The maximum scribe line depth for all locations (skin lap joints, skin butt joints, external repair
doublers, external features, and decals and fairings) is ______ inches.
Action:
NDT Inspections:
All NDT inspections for cracks at scribe line locations have been accomplished as shown in the
Accomplishment Instructions of Service Bulletin 727-53A0233.
Findings: (Include a detailed description of any damage found, including locations, message
numbers, etc. Attach additional pages as necessary.)
Action:
-

Appendix B: REPORTING TEMPLATE - AIRPLANES WITH SCRIBE LINES
(SHEET 2 OF 2)
Original Issue: February 19, 2010
BOEING PROPRIETARY Copyright © Unpublished Work - See page 1 for details.

727-53A0233
188 of 192

BOEING SERVICE BULLETIN 727-53A0233
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Table 1 - Skin Lap Joints
Location
Stringer

Forward Body Aft Body
Station
Station

Length
(inches)

Distance From Lap (Inches) Depth
(inches)

L

d_fwd
(a)

d_min
(b)

d_aft (c)

SSSSSS(a) d_fwd = Distance from the edge of the upper skin of the forward end of the scribe line.
(b) d_min = Minimum distance of the scribe line at any point along the entire length of the scribe
line from the edge of the upper skin.
(c) d_aft = Distance from the edge of the upper skin of the aft end of the scribe line.

Appendix C: AIRPLANE FUSELAGE SCRIBE LINE MARK SUMMARY TABLES
(SHEET 1 OF 2)
Original Issue: February 19, 2010
727-53A0233
BOEING PROPRIETARY 189 of 192
Copyright © Unpublished Work - See page 1 for details.

BOEING SERVICE BULLETIN 727-53A0233
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Table 2 - Locations other than Skin Lap Joints
Forward Body Aft Body
Station
Station

Stringer

Length
(inches)

Distance From Stringer (Inch- Depth
es)
(inches)

L

d_fwd (a)

d_aft (b)

SSSS(a) d_fwd = Distance of the forward end of the scribe from the stringer.
(b) d_aft = Distance of the aft end of the scribe from the stringer.

Appendix C: AIRPLANE FUSELAGE SCRIBE LINE MARK SUMMARY TABLES
(SHEET 2 OF 2)
Original Issue: February 19, 2010
727-53A0233
BOEING PROPRIETARY 190 of 192
Copyright © Unpublished Work - See page 1 for details.