On this page
Copies · 4
Copies of this document that the FAA filed in AD dockets on regulations.gov, newest revision first. A newer revision may exist.
© Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2023-1038, the docket of AD 2023-14-09. Not covered by OpenAirDocs’ CC0 dedication.
© Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2023-1038, the docket of AD 2023-14-09. Not covered by OpenAirDocs’ CC0 dedication.
© Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2025-0340; AD 2025-20-05 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
© Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2022-0678, the docket of AD 2022-17-09. Not covered by OpenAirDocs’ CC0 dedication.
- Manufacturer
- Airbus
- Type
- Service Bulletin
- Number
- A350-57-P070
- Latest revision known
- A350-57-P070, Revision 01, dated March 14, 2022
- Copies
- 4 files of 2 revisions
A newer revision may exist than any OpenAirDocs knows of: check with the manufacturer.
ADs that cite it · 2
Newest first, with the revision each names, as OpenAirDocs read it from the AD’s text: check it against the AD.
Also cited in 2 proposed ADs and 2 difficulty reports.
Text · 67
Revision 01, the newest copy. From the PDF’s text layer: layout, tables and figures are lost. The PDF is the document. © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2023-1038, the docket of AD 2023-14-09. Not covered by OpenAirDocs’ CC0 dedication.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '1f3b22bbac5c225626d6f12d4aa64b8367e923f165296106f9d1ea4b666aa171' ORDER BY p.page"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '1f3b22bbac5c225626d6f12d4aa64b8367e923f165296106f9d1ea4b666aa171' ORDER BY p.page
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 1
CONF ALL AIRBUS 2, ROND POINT EMILE DEWOITINE 31700 BLAGNAC FRANCE
The content of this document is the property of Airbus. All rights including copyrights are reserved.
It is supplied in confidence and commercial security on its contents must be maintained.
It must not be used for any purpose other than that for which it is supplied, nor may information contained in it be disclosed to unauthorized persons.
It must not be reproduced in whole or in part without permission in writing from the owners of the copyright. Requests for reproduction of any data in this document and the media authorized for it must be addressed to Airbus.
MANDATORY MANDATORY MANDATORY ATA SYSTEM: 57 TITLE: WINGS - INTRODUCE OVERLAP SEALANT OPTIMISATION IN WINGBOX
- 900 WUC MODIFICATION No.:
116643L01169
A350
SERVICE BULLETIN
SUMMARY REV 00 Jul 28/21 A350-57-P070 Page 2 ATA SYSTEM: 57 TITLE: WINGS - INTRODUCE OVERLAP SEALANT OPTIMISATION IN WINGBOX
- 900 WUC
SUMMARY This summary is for information only and is not approved for modification of the aircraft.
A. MODIFICATIONS CONF 001
MODIFICATION CLASSIFICATION MAJOR None MINOR 116643L01169 NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the mass, balance, structural strength, reliability, operational characteristics affecting the airworthiness of the product. All other changes are major changes.
NOTE: This modification is related to an airworthiness issue and has been re-classified and confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this is handled by Airbus under the Design Organisation Approval ref. EASA.21J.031.
CONF 002
MODIFICATION CLASSIFICATION MAJOR None MINOR 116643L01169 NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the mass, balance, structural strength, reliability, operational characteristics affecting the airworthiness of the product. All other changes are major changes.
NOTE: This modification is related to an airworthiness issue and has been re-classified and confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this is handled by Airbus under the Design Organisation Approval ref. EASA.21J.031.
CONF 003
MODIFICATION CLASSIFICATION MAJOR None MINOR 116643L01169 NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the mass, balance, structural strength, reliability, operational characteristics affecting the airworthiness of the product. All other changes are major changes.
NOTE: This modification is related to an airworthiness issue and has been re-classified and confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this is handled by Airbus under the Design Organisation Approval ref. EASA.21J.031.
CONF 004
MODIFICATION CLASSIFICATION MAJOR None
A350
SERVICE BULLETIN
SUMMARY REV 00 Jul 28/21 A350-57-P070 Page 3
MODIFICATION CLASSIFICATION MINOR 116643L01169 NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the mass, balance, structural strength, reliability, operational characteristics affecting the airworthiness of the product. All other changes are major changes.
NOTE: This modification is related to an airworthiness issue and has been re-classified and confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this is handled by Airbus under the Design Organisation Approval ref. EASA.21J.031.
CONF ALL B. REASON
(1) History It has been identified that overlap sealant which provides the second layer of protection to prevent stringer edge glow in case of lighting strike may not have been applied at all required locations of the A350 wing. Inspection Ref. SB A350-57- P067 was introduced to address this issue and this modification Ref. SB A350-57- P070 is specific to A350–900 aircraft wing upper cover (WUC) locations that may be affected. When applicable to configuration alignment both SB's can be carried out in conjunction.
(2) Objective/Action Modification (MOD) 116643L01169 restores the original design intent for sealant application on the WUC.
(3) Advantages Embodiment of this modification ensures that the correction of missing sealant will restore the 2 independent layers of lightning strike protection in accordance with the certification requirement.
(4) Operational/Maintenance Consequences None C. GENERAL EVALUATION
EVALUATION TABLE
COMPLIANCE MANDATORY COST SAVING NO
A/C OPERATION
AFFECTED
NO VENDOR SB NO
CANCELS INSPECTION SB NO ETOPS AFFECTED NO
PAX COMFORT AFFECTED NO POTENTIAL AD YES
RELIABILITY AFFECTED NO STRUCTURAL LIFE EXTENSION NO
LIFE LIMIT NO LINE MAINTENANCE AFFECTED NO NOTE: Service Bulletin must be accomplished.
D. MAINTENANCE CONFIGURATION CONF 001
MAINTENANCE CONFIGURATION
FUEL TANKS OPENED YES
A350
SERVICE BULLETIN
SUMMARY REV 00 Jul 28/21 A350-57-P070 Page 4 CONF 002
MAINTENANCE CONFIGURATION
FUEL TANKS OPENED YES CONF 003
MAINTENANCE CONFIGURATION
FUEL TANKS OPENED YES CONF 004
MAINTENANCE CONFIGURATION
FUEL TANKS OPENED YES
CONF ALL E. MATERIAL PRICE INFORMATION CONF 001
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet No material CONF 002
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet No material CONF 003
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet No material CONF 004
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet No material
CONF ALL F. APPLICABILITY This Service Bulletin is applicable to this (these) operator(s):
81K 96U AAR AFL AFR AZU CAL CCA CES CHH CPA CRK CSC CSN DAL DLH ETH EVE FBU FIN
FJI FWI GAF HVN IBE JAL KAY LHT MAS MAU PAL QTR SAA SAS SIA TAM THA THY G. CONCURRENT REQUIREMENTS None
A350
SERVICE BULLETIN
SUMMARY REV 00 Jul 28/21 A350-57-P070 Page 5 H. NATURE OF THE WORK CONF 001
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
AIRCRAFT YES
EQUIPMENT NO CONF 002
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
AIRCRAFT YES
EQUIPMENT NO CONF 003
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
AIRCRAFT YES
EQUIPMENT NO CONF 004
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
AIRCRAFT YES
EQUIPMENT NO
CONF ALL I. MANPOWER CONF 001
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
MANPOWER TOTAL MAN-HOURS 49.25 h ELAPSED TIME (HOURS) 11.25 h CONF 002
(1) Application of Sealant to the Upper Rib Feet
A350
SERVICE BULLETIN
SUMMARY REV 00 Jul 28/21 A350-57-P070 Page 6
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
MANPOWER TOTAL MAN-HOURS 51.75 h ELAPSED TIME (HOURS) 11.25 h CONF 003
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
MANPOWER TOTAL MAN-HOURS 54.25 h ELAPSED TIME (HOURS) 11.25 h CONF 004
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
MANPOWER TOTAL MAN-HOURS 54.25 h ELAPSED TIME (HOURS) 11.25 h
A350
SERVICE BULLETIN
SUMMARY Figure ICN-A350-A-57XXP070-A-FAPE3-06048-A-001-01 Fig.SA Sol.AA SHEET 1/1 REV 00 Jul 28/21 A350-57-P070General Overview Page 7
CONF ALL J. GENERAL OVERVIEW
CONF ALL Z500 Z600 LH RH
LH SHOWN
RH SYMMETRICAL A NOTE:
DO THE APPLICATION OF SEALANT TO THE UPPER RIB FEET STGR4 STGR2 STGR13 STGR14 STGR17 STGR12 STGR15 STGR18 RIB1 RIB5 RIB6 RIB7 RIB8 RIB12 RIB13 RIB15 RIB17 RIB19
RIBS, LOWER STRINGERS AND WING LOWER COVER NOT SHOWN
VIEW LOOKING UP INBD F W D STGR1 A
LH SHOWN
RH SYMMETRICAL ICN-A350-A-57XXP070-A-FAPE3-06048-A-001-01
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 8 ATA SYSTEM: 57 TITLE: WINGS - INTRODUCE OVERLAP SEALANT OPTIMISATION IN WINGBOX
- 900 WUC
1. PLANNING INFORMATION A. APPLICABILITY NOTE: This modification is applicable by Service Bulletin only.
(1) Models ON A/C 0021-0058, 0060-0064, 0066-0070, 0072-0087, 0089-0101, 0103-0107, 0109, 0111- 0117, 0119-0124, 0126-0130, 0132-0138, 0140, 0142-0151, 0153-0155, 0157-0160, 0162- 0165, 0167, 0168, 0170, 0172-0187, 0189-0193, 0195-0205, 0207-0214, 0216-0221, 0223, 0224, 0226-0228, 0230-0232, 0234-0240, 0243-0251, 0254-0257, 0259-0261, 0263-0265, 0267-0273, 0276-0285, 0287, 0289, 0291-0295, 0297, 0299-0303, 0305, 0307-0314, 0316, 0318, 0320-0325, 0327-0329, 0331, 0333-0335, 0337-0339, 0341, 0343-0345, 0347-0349, 0351, 0352, 0354, 0355, 0357-0359, 0363-0366, 0369-0371, 0373, 0375, 0376, 0378, 0379, 0381, 0383, 0385, 0387, 0389-0398, 0400, 0401, 0403-0408, 0410-0414, 0416-0419, 0421- 0423, 0425, 0427-0429, 0431, 0433, 0435-0437, 0439, 0441-0443, 0445, 0447, 0449, 0451- 0455, 0457-0459, 0462-0466, 0468-0470, 0472, 0474-0476, 0478, 0479, 0481 350-941
CONF ALL
(2) Applicability by MSN 0021-0058 0060-0064 0066-0070 0072-0087 0089-0101 0103-0107 0109 0111-0117 0119-0124 0126-0130 0132-0138 0140 0142-0151 0153-0155 0157-0160 0162-0165 0167 0168 0170 0172-0187 0189-0193 0195-0205 0207-0214 0216-0221 0223 0224 0226-0228 0230-0232 0234-0240 0243-0251 0254-0257 0259-0261 0263-0265 0267- 0273 0276-0285 0287 0289 0291-0295 0297 0299-0303 0305 0307-0314 0316 0318 0320-0325 0327-0329 0331 0333-0335 0337-0339 0341 0343-0345 0347-0349 0351 0352 0354 0355 0357-0359 0363-0366 0369-0371 0373 0375 0376 0378 0379 0381 0383 0385 0387 0389-0398 0400 0401 0403-0408 0410-0414 0416-0419 0421-0423 0425 0427-0429 0431 0433 0435-0437 0439 0441-0443 0445 0447 0449 0451-0455 0457-0459 0462-0466 0468-0470 0472 0474-0476 0478 0479 0481
(3) MSN by configuration CONF 001
MSN CONFIGURATION 0021 0025 0033 0036 0042 0047 0056 0063 0067 0069 0074 0076 0078 0080 0083 0086 0087 0090 0098 0100 0106 0112 0114 0115 0126 0127 0129 0132 0135 0136 0143 0146 0149 0150 0160 0163 0164 0172 0173 0174 0175 0182 0184 0190 0192 0197 0199 0202 0204 0207 0209 0210 0211 0212 0214 0221 0228 0236 0237 0243 0249 0254 0255 0257 0263 0267 0276 0277 0278 0279 0280 0287 0292 0294 0297 0303 0305 0309 0314 0316 0321 0322 0328 0333 0343 0352 0369 0370 0371 0379 0385 0390 0394 0395 0404 0405 0427 0436 0439 0445 0447 0451 0464 0469 0475 0476 001 CONF 002
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 9
MSN CONFIGURATION 0022 0023 0028 0044 0050 0051 0082 0091 0095 0097 0104 0111 0113 0123 0124 0130 0134 0142 0153 0168 0177 0181 0185 0187 0189 0193 0201 0219 0227 0264 0271 0273 0293 0300 0302 0312 0325 0327 0331 0349 0358 0359 0366 0378 0381 0383 0391 0392 0397 0400 0406 0407 0410 0414 0418 0419 0422 0428 0429 0433 0437 0441 0453 0457 0459 0463 0466 0479 002 CONF 003
MSN CONFIGURATION 0026 0030 0031 0037 0041 0052 0054 0055 0060 0062 0068 0077 0081 0084 0096 0099 0107 0116 0122 0133 0140 0158 0170 0186 0216 0220 0223 0230 0232 0238 0244 0281 0318 0329 0334 0339 0341 0344 0347 0348 0357 0364 0376 0398 0403 0411 0412 0416 0417 0421 0431 0435 0442 0443 0449 0454 0462 0468 0472 0478 003 CONF 004
MSN CONFIGURATION 0024 0027 0029 0032 0034 0035 0038 0039 0040 0043 0045 0046 0048 0049 0053 0057 0058 0061 0064 0066 0070 0072 0073 0075 0079 0085 0089 0092 0093 0094 0101 0103 0105 0109 0117 0119 0120 0121 0128 0137 0138 0144 0145 0147 0148 0151 0154 0155 0157 0159 0162 0165 0167 0176 0178 0179 0180 0183 0191 0195 0196 0198 0200 0203 0205 0208 0213 0217 0218 0224 0226 0231 0234 0235 0239 0240 0245 0246 0247 0248 0250 0251 0256 0259 0260 0261 0265 0268 0269 0270 0272 0282 0283 0284 0285 0289 0291 0295 0299 0301 0307 0308 0310 0311 0313 0320 0323 0324 0335 0337 0338 0345 0351 0354 0355 0363 0365 0373 0375 0387 0389 0393 0396 0401 0408 0413 0423 0425 0452 0455 0458 0465 0470 0474 0481 004
CONF ALL
(4) Configuration definition CONF 001 Configuration 001 CONF 001 is valid for all aircraft given in the applicability of this Service Bulletin which do not have MOD No. 100354L41135, MOD No. 100426L41180, or MOD No. 100357L41136 embodied.
CONF 001 retrofits following modifications: 116643L01169.
CONF 002 Configuration 002 CONF 002 is valid for all aircraft given in the applicability of this Service Bulletin which have MOD No. 100354L41135 embodied and do not have MOD No.
100426L41180 or MOD No. 100357L41136 embodied.
CONF 002 retrofits following modifications: 116643L01169.
CONF 003
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 10 Configuration 003 CONF 003 is valid for all aircraft given in the applicability of this Service Bulletin which have MOD No. 100426L41180 and MOD No. 100357L41136 embodied and do not have MOD No. 100354L41135 embodied.
CONF 003 retrofits following modifications: 116643L01169.
CONF 004 Configuration 004 CONF 004 is valid for all aircraft given in the applicability of this Service Bulletin which have MOD No. 100354L41135 and MOD No. 100357L41136 embodied and do not have MOD No. 100426L41180 embodied.
CONF 004 retrofits following modifications: 116643L01169.
CONF ALL B. CONCURRENT REQUIREMENTS None C. REASON
(1) History It has been identified that overlap sealant which provides the second layer of protection to prevent stringer edge glow in case of lighting strike may not have been applied at all required locations of the A350 wing. Inspection Ref. SB A350-57- P067 was introduced to address this issue and this modification Ref. SB A350-57- P070 is specific to A350–900 aircraft wing upper cover (WUC) locations that may be affected. When applicable to configuration alignment both SB's can be carried out in conjunction.
(2) Objective/Action Modification (MOD) 116643L01169 restores the original design intent for sealant application on the WUC.
(3) Advantages Embodiment of this modification ensures that the correction of missing sealant will restore the 2 independent layers of lightning strike protection in accordance with the certification requirement.
(4) Operational/Maintenance Consequences None D. DESCRIPTION T o accomplish this Service Bulletin it is necessary to:
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet 1 Apply Sealant to the Upper Rib Feet in the LH Wing 2 Apply Sealant to the Upper Rib Feet in the RH Wing E. COMPLIANCE
(1) Classification MANDATORY: Service Bulletin must be accomplished.
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 11
(2) Accomplishment Timescale Accomplishment of this Service Bulletin must be done no later than 6 years from entry into service.
This Service Bulletin has been classified Mandatory. It is expected that an Airworthiness Directive (AD) published by the European Union Aviation Safety Agency (EASA) will be issued to confirm this classification. It is anticipated that the AD will confirm the threshold given but reference should be made to the AD for confirmation of the mandated accomplishment timescale.
F. APPROVAL The technical content of this document is approved under the authority of the Design Organisation Approval ref. EASA.21J.031.
If an aircraft listed in the applicability has a modification or repair embodied that is not of AIRBUS origin, and which affects the content of this Service Bulletin, the operator is responsible for obtaining approval by its airworthiness authority for any adaptation necessary before incorporation of the Service Bulletin.
G. MANPOWER CONF 001 The manpower estimates given in this Service Bulletin are based on the direct labor cost to do the work. These estimates assume that the work will be done by experienced personnel, and may need to be revised upwards to suit operator’s circumstances. The estimates do not include the time to prepare, plan or inspect the work. Manufacture and procurement of parts and tools, drying times for paints, sealants, etc., and general administration work are also not included.
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
PREPARATION Job Set-up 0.25 h Open the LH Wing Access Covers and Access Doors 9.00 h Remove the Pipes in the LH Wing Between Ribs 11 and 19 2.00 h Open the RH Wing Access Covers and Access Doors 9.00 h Remove the Pipes in the RH Wing Between Ribs 11 and 19 2.00 h
PROCEDURE Apply Sealant to the Upper Rib Feet in the LH Wing 1.25 h Apply Sealant to the Upper Rib Feet in the RH Wing 1.25 h
PREPARATION FOR TEST Install the Pipes in the LH Wing Between Ribs 11 and 19 3.00 h Install the Pipes in the RH Wing Between Ribs 11 and 19 3.00 h TEST T est 0.25 h
CLOSE-UP Close the LH Wing Access Covers and Access Doors 9.00 h Close the RH Wing Access Covers and Access Doors 9.00 h Close-up 0.25 h TOTAL MAN-HOURS 49.25 h
A350
SERVICE BULLETIN REV 00 Jul 28/21 A350-57-P070 Page 12 ELAPSED TIME (HOURS) 11.25 h NOTE: For an explanation of the man-hours and elapsed time, refer to the Gantt Chart given in Appendix A.
CONF 002 The manpower estimates given in this Service Bulletin are based on the direct labor cost to do the work. These estimates assume that the work will be done by experienced personnel, and may need to be revised upwards to suit operator’s circumstances. The estimates do not include the time to prepare, plan or inspect the work. Manufacture and procurement of parts and tools, drying times for paints, sealants, etc., and general administration work are also not included.
(1) Application of Sealant to the Upper Rib Feet
(a) T ask set A350-A-57-XX-P070-01000-93AA-A Application of Sealant to the Upper Rib Feet
PREPARATION Job Set-up 0.25 h Open the LH Wing Access Covers and Access Doors 9.00 h Remove the Pipes in the LH Wing Between Ribs 11 and 19 3.00 h Open the RH Wing Access Covers and Access Doors 9.00 h Remove the Pipes in the RH Wing Between Ribs 11 and 19 2.00 h
PROCEDURE Apply Sealant to the Upper Rib Feet in the LH Wing 1.25 h Apply Sealant to the Upper Rib Feet in the RH Wing 1.25 h
PREPARATION FOR TEST Install the Pipes in the LH Wing Between Ribs 11 and 19 4.50 h Install the Pipes in the RH Wing Between Ribs 11 and 19 3.00 h TEST T est 0.25 h
CLOSE-UP Close the LH Wing Access Covers and Access Doors 9.00 h Close the RH Wing Access Covers and Access Doors 9.00 h Close-up 0.25 h TOTAL MAN-HOURS 51.75 h ELAPSED TIME (HOURS) 11.25 h NOTE: For an explanation of the man-hours and elapsed time, refer to the Gantt Chart given in Appendix A.
CONF 003 The manpower estimates given in this Service Bulletin are based on the direct labor cost to do the work. These estimates assume that the work will be done by experienced personnel, and may need to be revised upwards to suit operator’s circumstances. The estimates do not include the time to prepare, plan or inspect the work. Manufacture and procurement of parts and tools, drying times for paints, sealants, etc., and general administration work are also not included.
(1) Application of Sealant to the Upper Rib Feet