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G. Manpower The table below shows an estimate of the task hours necessary to do this inspection for each airplane.
This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator task hour data if necessary. The estimate does not include lost time. These are some examples of lost time:
Time to adjust to the workplace Time to schedule the work Time to inspect the work Time to cure the materials Time to make the parts Time to find the tools.
Group 1:
Table 1 - Skin Inspection in Section 42, 44 and 46 Elapsed HoursTask HoursNumber of PersonsTask
0.500.501Prepare
28.0056.002Inspect (Figure 1)
28.5056.50TOTAL FOR EACH AIRPLANE Group 2:
Table 2 - Skin Inspection in Section 42 Elapsed HoursTask HoursNumber of PersonsTask
0.500.501Prepare
4.759.502Inspect (Figure 2)
5.2510.00TOTAL FOR EACH AIRPLANE NOTE: More time will be required for repairs if cracks are found.
H. Weight and Balance Changes None.
I. Electrical Load Data Not applicable.
J. References
1. Existing Data:
a. Boeing Service Bulletin 757-53-0097
b. Boeing Service Letter 747-SL-51-048, 747-SL-53-088A Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 13 of 33 BOEING SERVICE BULLETIN 747-53A2854
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c. Boeing Service Related Problem (SRP) 747-SRP-53-0396
d. Service Bulletin Index D6-30300
e. 747 Non-Destructive Testing (NDT) Manual Part 6, 53-30-25
2. Data Supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
TitleDrawing Number Skin Panel Instl - STA 741.1 to STA 1000.0 Stgr 6 to Stgr 1265B04112 Skin Panel Instl - STA 520 to STA 1000 S-23R to S-34R65B18625 Skin Panel Instl - STA 1000 to STA 1200.0, Stgr 6 to Stgr 1265B18631 The table above lists applicable drawings used to prepare this service bulletin. The drawings are not necessary to make the specified changes, and are not supplied with this service bulletin. The drawings may not be applicable to all airplane configurations or operators.
K. Publications Affected
1. Publications:
None.
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the Maintenance Program. This service bulletin affects FCS but no new DTIs are necessary.
L. Interchangeability and Intermixability of Parts Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.
M. Software Accomplishment Summary Not affected.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 14 of 33 BOEING SERVICE BULLETIN 747-53A2854
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2. MATERIAL INFORMATION A. Material - Price and Availability None.
B. Industry Support Information Boeing warranty remedies are not available for the inspection and repair procedures given in this service bulletin.
C. Parts Necessary for Each Airplane
1. Kits/Parts None.
2. Parts and Materials Supplied by the Operator None.
3. Parts Modified and Reidentified None.
4. Parts Removed and Not Replaced None.
D. Parts Necessary to Change Spares None.
E. Special Tooling - Price and Availability None.
F. Special Tooling Necessary to do this Service Bulletin No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine operator tool supply to make sure all necessary tools are available.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 15 of 33 BOEING SERVICE BULLETIN 747-53A2854
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 16 of 33 BOEING SERVICE BULLETIN 747-53A2854
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BLANK PAGE
3. ACCOMPLISHMENT INSTRUCTIONS A. GENERAL INFORMATION CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,
METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR OTHER ELECTRICAL DAMAGE.
NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. Unless shown differently, these dimensions and tolerances are used:
– Linear dimensions are in inches – Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus or minus 0.03 inch
4. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative procedure, the accepted alternative procedure can be used. When the words "in accordance with" are included in the instruction, the procedure in the Boeing document must be used.
5. Boeing Service Letter 747-SL-51-048, Damage Reporting and Repair Plan/Design Guidelines, is an acceptable procedure to request information from Boeing for additional structural repair instructions. The Service Letter describes what information must be provided to Boeing before a structural repair can be provided.
6. The instructions in Paragraph 3.B., Work Instructions and the figures can include operation of tools or test equipment. Boeing Engineering Tool Drawings, the Illustrated Tool and Equipment Manual, and the Special Tool and Ground Handling Drawing Index contain data on versions of the tools or test equipment that you can use. It is permitted to use replaced tools. It is not permitted to use superseded tools.
7. If it is necessary to remove more parts for access, you can remove those parts. If you can get access without removing identified parts, it is not necessary to remove all of the identified parts. Jacking and shoring limitations must be observed.
B. WORK INSTRUCTIONS Group 1:
SKIN INSPECTION
1. Get external access and do external sliding probe eddy current inspections for cracking in accordance with FIGURE 1.
NOTE: If any part of the inspection area is covered by an external doubler, contact Boeing for inspection instructions.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 17 of 33 BOEING SERVICE BULLETIN 747-53A2854
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2. If any cracking is found, contact Boeing for repair data and do the repair.
3. Put the airplane back in a serviceable condition. Do the external sliding probe eddy current inspections again in all affected unrepaired areas at the time given in Paragraph 1.E., Compliance, Table 1.
Group 2:
SKIN INSPECTION
1. Get external access and do external sliding probe eddy current inspections for cracking in accordance with FIGURE 2.
NOTE: If any part of the inspection area is covered by an external doubler, contact Boeing for inspection instructions.
2. If any cracking is found, contact Boeing for repair data and do the repair.
3. Put the airplane back in a serviceable condition. Do the external sliding probe eddy current inspections again in all affected unrepaired areas at the time given in Paragraph 1.E., Compliance, Table 2.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 18 of 33 BOEING SERVICE BULLETIN 747-53A2854
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BOEING SERVICE BULLETIN 747-53A2854
ALERT ALERT This Figure applies only to: Group 1.
STA 1000 STA STA STA 1200 STA STA 135 520 800 1350 STA 1240
- S-4L S-12L STA 2140
STA STA STA SIA STA 1350 1740 1961 2084 2360
• S-4L
- S-12L
- S-46L S-40L - S-46L - 2147405 FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 1 OF 11) Original Issue: September 17, 2012 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 747-53A2854 Work - See page 1 for details. 19 of 33
BOEING SERVICE BULLETIN 747-53A2854
ALERT ALERT STA 1000 STA STA 1200 STA STA STA 1350 800 520 135 STA 1240 S-4R - S-12R - S-34R - S-39R - S-44R STA 780 C D STA 2140 E 2360 STA 2084 STA 1961 STA 1740 STA 1350 STA S-4R S-12R S-46R
- S-40R
- S-46R 2147412 FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 2 OF 11) Original Issue: September 17, 2012 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright @ Unpublished 747-53A2854 Work - See page 1 for details. 20 of 33
BOEING SERVICE BULLETIN 747-53A2854
ALERT ALERT STA 1000
STA STA STA STA STA STA 800 1020 1040 1060 1080 1100
STA STA STA STA STA STA 1100 1120 1140 1160 1180 1199.0 S-12- FWD
LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE 2177132 FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 3 OF 11) Original Issue: September 17, 2012 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 747-53A2854 Work - See page 1 for details. 21 of 33
BOEING SERVICE BULLETIN 747-53A2854
ALERT ALERT
STA STA STA STA STA STA 1961.10 1980 2000 2020 2040 2062
- S-46 STA STA STA 2360 STA 2104 2062 2084
- S-46
FWD LEFT SIDE SHOWN
RIGHT SIDE OPPOSITE 2177853 FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 4 OF 11) Original Issue: September 17, 2012 Export Controlled ECCN: 9E991 - BOEING 747-53A2854 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 22 of 33
BOEING SERVICE BULLETIN 747-53A2854
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STA VIS STA 560 540 520 — S-34
RIGHT SIDE ONLY FWD
STA SIA SIA STA STA 780 760 740 700 680 S-34
RIGHT SIDE ONLY 2177987 FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 5 OF 11) Original Issue: September 17, 2012 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 747-53A2854 Work - See page 1 for details. 23 of 33
FIGURE 1: SKIN INSPECTION IN SECTION 42, 44 AND 46 (SHEET 6 OF 11) Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 17, 2012 747-53A2854 24 of 33 BOEING SERVICE BULLETIN 747-53A2854