8.1 WING SSI INFORMATION D6-82669 Original
III. INSPECTION OPTIONS - DTR CHECK FORM W-19C Front spar, lower chord from WBL 114 to WBL 355, except as covered by W-19D.
(1) Spar chord
(Internal) From Direction 1, at fastener locations common to the lower wing skin, using visual inspection methods.
Access: Defuel and purge tanks (S3051, S4051). Remove lower wing access panels 7202, 7204, 7205, 7206, 7207, 7208, 7209, 7210, 7402, 7404, 7405, 7406, 7407, 7408, 7409, 7410 and inspar rib access panels* 7224, 7226, 7424, 7426.
* Do NOT remove more than one panel per rib unless engine is removed.
Zone(s): 305, 405.
IV. INSPECTION OPTIONS - DTR CHECK FORM W-19D
Front spar, lower chord at locations WBL 114, 135.5, 149, 152.5, 157, 161, 183.4, 191, 198.6, 227, 254, 279, 304.5, 330, and 355.
(1) Spar Chord
(Internal) From Direction 1, using Ultrasonic (Ref. NDT Manual D6-37239, Part 4, 57-10-04).
1.0 elapsed hour and 1.0 manhour are required to accomplish this inspection.
NOTE: Applicable only at WBL 183.4, 191, 198.6, and 254.
Access: Defuel and purge tanks (S3051, S4051). Remove lower wing access panels 7202, 7204, 7205, 7206, 7207, 7208, 7209, 7210, 7402, 7404, 7405, 7406, 7407, 7408, 7409, 7410 and inspar rib access panels* 7224, 7226, 7424, 7426.
* Do NOT remove more than one panel per rib unless engine is removed.
Zone(s): 305, 405.
(2) Spar Chord
(External) From Direction 2, using LFEC (Ref. NDT Manual D6-37239, Part 6, 57-10-31).
0.5 elapsed hours and 0.5 man-hours are required to accomplish this inspection.
NOTE: Not applicable at WBL 191 or 198.6 due to nacelle fittings.
Access: Remove small access plates 5757, 5758, 5857, 5858 and aft strut fairing panels 5742, 5752,
5842, 5852.
Zone(s): 300, 400, 508, 608.
Original D6-82669 8.1 WING SSI INFORMATION
(3) Spar Chord (Internal) From Direction 3, using HFEC (Ref. NDT Manual D6-37239, Part 6, 57-10-22).
0.5 elapsed hours and 0.5 manhours are required to accomplish this inspection. NOTE: Not applicable at WBL 183.4, 191, 198.6, or 254.
Access: Defuel and purge tanks (S3051, S4051). Remove lower wing access panels 7202, 7204, 7205, 7206, 7207, 7208, 7209, 7210, 7402, 7404, 7405, 7406, 7407, 7408, 7409, 7410 and inspar rib access panels* 7224, 7226, 7424, 7426.
* Do NOT remove more than one panel per rib unless engine is removed.
Zone(s): 305, 405.
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