.
Skin bulging at attachment location.
Findings of structural distress should be reported as described in Section 6.0.
Structural Cracking
Information contained in this document does not sanction further airplane operations with known

structural cracking present. All cracks found must be repaired per a regulatory approved method prior to returning the airplane to active fleet status.
8.0.5 Prior Repairs
As noted in Section 5.1.18, in the area of structural significant items that involve prior repairs, the existing DTR Check Form and inspection options may not apply.  These requests for assistance will be handled on a case-by-case basis.  Contact Boeing in accordance with Section 6.0.  Provide description of repair and whether a Boeing approved repair was installed or a locally engineered and approved repair.  Include date of repair.
NOTE:  Regulatory approved alternate means of compliance will be required.
8.0   SSI INSPECTION OPTIONS D6-82669 Original

8.1  WING SSI INFORMATION
This section contains the basic inspection and access information needed to complete the Wing DTR Check Forms in Section 11.1.  A listing of the Wing SSI/DTR Check Forms by Model-Series applicability is shown below.  The SSI Numbers are not continuously consecutive as some items were eliminated from the program or combined with other items after the number sequence was assigned.  A structural inspection matrix, showing the inspection zone-area for each item, is shown on Pages 8.1.2 and 8.1.3.
Table 1: WING SSI NUMBER AND DTR CHECK FORM APPLICABILITY 
SSI NUMBER  TITLE  DTR CHECK FORMS  APPLICABLE  737 
-300  -400  -500 
W-1  WING CENTER SECTION, REAR SPAR LOWER CHORD  W-1A W-1B  ALL  ALL  ALL 
W-6  WING CENTER SECTION, LOWER PANEL, TYPICAL STRINGER  W-6A, B  ALL  ALL  ALL 
W-8  WING CENTER SECTION LOWER SPLICE STRINGERS 5 AND 9  W-8  ALL  ALL  ALL 
W-10  WING LOWER SURFACE SPLICE - BBL 70.85  W-10A, B  ALL  ALL  ALL 
W-11  WING UPPER BBL 70.85 SPLICE  W-11A, B, C, D  ALL  ALL  ALL 
W-12  WING TO BODY JOINT  W-12  ALL  ALL  ALL 
W-13  WING REAR SPAR UPPER AND LOWER CHORD AT TERMINAL FITTING SPLICE  W-13A, B, C  ALL  ALL  ALL 
W-14  WING FRONT SPAR LOWER CHORD AT SIDE OF BODY SPLICE  W-14A, B  ALL  ALL  ALL 
W-16  WING REAR SPAR/FRONT SPAR UPPER CHORD AND SKIN  W-16  ALL  ALL  ALL 
W-17  WING REAR SPAR LOWER CHORD, WEB, AND SKIN  W-17A, B, C, D  ALL  ALL  ALL 
W-19  WING FRONT SPAR LOWER CHORD, WEB AND SKIN  W-19A, B, C, D  ALL  ALL  ALL 
　
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