### Commercial Airplane Group 

# 767 Service Bulletin

Number: 767-57A0060 

## Revision Transmittal Sheet Date: January 30, 1997 Revision 1: December 31, 1998 ATA System: 5740 2781 2811

SUBJECT:WINGS - Leading Edge and Leading Edge Devices - Slat Track Housing - Drain Tube Fuel Leak Inspection and Rework This revision includes all pages of the service bulletin. COMPLIANCE INFORMATION RELATED TO THIS REVISION No more work is necessary on Group 1 airplanes inspected or reworked as shown in the initial release of this service bulletin as a result of this revision. However, repeat inspections are required until terminating action is accomplished. More work is necessary on the Group 2 airplane VE066 reworked as shown in the Validation Copy 1 release of this service bulletin. After the validation of this service bulletin was completed on VE066 additional grounding requirements were added as given in the PART IV - ADDITIONAL WORK. REASON FOR REVISION This revision is sent to add terminating action to this service bulletin as follows: 1. Figures 3, 4, 5 and the PART - III TERMINATING ACTION are added to provide instructions to install a new slat track housing drain tube assembly for Group 1 and 2 airplanes. 2. Figure 6 and PART IV - ADDITIONAL WORK are added to provide instructions to rework the slat track housing drain tube assembly for the Group 2 airplane that incorporated PART III - TERMINATING ACTION as specified in Validation Copy 1. 3. Manpower tables are added for installation of the new slat track housing drain tube assembly. 4. Kit and Material Availability information is added for the new slat track housing drain tube installation. As part of a service bulletin validation program, this change was completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 before the release of Revision 1 of this service bulletin. The change completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 is equivalent to the release of Revision 1 of this service bulletin except airplane VE066 requires more work as shown in PART IV - ADDITIONAL WORK. Paragraph 1.A., Effectivity, shows changes of airplane operators. Each operator should examine the Effectivity paragraph for changes. Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location of important changes. Pages with no vertical lines have no important changes. REVISION HISTORY Initial Release: January 30, 1997 Revision 1: December 31, 1998

767-57A0060 Revision Transmittal Page 1 of 1

### Commercial Airplane Group 

# 767 Service Bulletin

Number: 767-57A0060 

## Summary Date: January 30, 1997 Revision 1: December 31, 1998 ATA System: 5740 2781 2811

SUBJECT:WINGS - Leading Edge and Leading Edge Devices - Slat Track Housing - Drain Tube Fuel Leak Inspection and Rework CONCURRENT REQUIREMENTS None BACKGROUND This service bulletin gives instructions to inspect for fuel leaks from the number 5 and 8 inboard slat track housing drain locations near the engine exhaust nozzles. Instructions are also given to rework or replace the slat track housing drain tube assembly as required. Fuel leaks from these drain locations could result in a fire when the airplane is standing still or in a low speed taxi. Accomplishment of this service bulletin will ensure the integrity of the drain tubes common to the slat track housing and prevent possible fuel leaks near an engine or exhaust nozzle when the airplane is on the ground. One operator reported a fuel leak from a slat track housing drain tube where the drain tube penetrates the lower wing skin. Further investigation revealed the fuel leak originated from a loose drain tube fitting. Six other operators have also reported fuel leaks from the slat track housing drain tube where the drain tube penetrates the lower wing skin. Further investigation revealed the fuel leaks originated from a crack in each of the drain tubes. The slat track housing drain tubes provide a drain path for moisture which can accumulate inside the slat track housing. The drain tubes are located inside the wing fuel tanks. Cracks in the drain tubes or a loose fitting can result in fuel migration into the drain tubes. As part of a service bulletin validation program, this change was completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 before the release of Revision 1 of this service bulletin. The change completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 is equivalent to the release of Revision 1 of this service bulletin except airplane VE066 requires more work as shown in PART IV - ADDITIONAL WORK. Boeing Service Related Problem (SRP) 767-SRP-57-0072 is related to this service bulletin. ACTION(PRRB12900-133) Inspect the exterior lower wing surface for fuel leaks at the inboard slat track housing drain location of each wing. If an indication of a fuel leak is found: 1. Rework the drain tube per PART II - REWORK and repeat the PART I - VISUAL INSPECTION until the PART III - TERMINATING ACTION is completed or, 2. Replace the drain tube per PART III - TERMINATING ACTION. Group 2 airplanes rework the drain tube per PART IV - ADDITIONAL WORK. EFFECTIVITY All 767 airplanes line positions 1 through 671 divided in two groups. COMPLIANCE See Figure 1 for compliance recommendations and maintenance alternatives. For the Group 2 airplane Boeing recommends the PART IV - ADDITIONAL WORK be completed within 5000 flight-cycles or 22 months, whichever is earlier from the release of Revision 1 of this service bulletin. INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of May 6 1996. Please refer to Paragraph 2.B., Industry Support Information.

767-57A0060 Summary Page 1 of 2

### BOEING SERVICE BULLETIN 767-57A0060

MANPOWER See Paragraph 1.G., Manpower. MATERIAL INFORMATION Boeing Supplied Kits Refer to Paragraph 2.A., Material - Price and Availability.



### OR REPLACE THE DRAIN TUBE IF REQUIRED. DRAIN LOCATION OF EACH WING. REWORK INSTALLATION DRAIN TUBE

DO A VISUAL INSPECTION OF THE LEFT WING SHOWN RIGHT WING SIMILAR

SPAR FRONT

AT THE INBOARD SLAT TRACK HOUSING LOWER WING SURFACE FOR FUEL LEAKSR93555

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 Summary Page 2 of 2

### Commercial Airplane Group 

# 767 Service Bulletin

Number: 767-57A0060 Date: January 30, 1997 Revision 1: December 31, 1998 ATA System: 5740 2781 2811

SUBJECT:WINGS - Leading Edge and Leading Edge Devices - Slat Track Housing - Drain Tube Fuel Leak Inspection and Rework
THIS SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER. 1. PLANNING INFORMATION A. Effectivity 1. Airplanes Refer to Service Bulletin Index Document D624T001, Part 3 for Airplane Variable Number, Line Number, and Serial Number data. This service bulletin is for the airplanes shown below. An equivalent change is on subsequent production airplanes. Refer to PRRB12900-133 for data about this change. IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER ABX AIR (ABX)

1 VB101-VB105 AEROFLOT (ARO)

1 VN561-VN562 AEROMEXICO (AMX)

1 VF091 VF093 VN556 AIR ALGERIE (ALG)

1 VK131-VK133 AIR CANADA (ACN)

1 VA701-VA719 VB001-VB002 VB201-VB202 VN931-VN936 AIR CHINA (BEJ)

1 VE064-VE065 VE083-VE086 VK161-VK164 AIR EUROPA (ARE)

1 VB323 VB328 VN546-VN547 AIR EUROPE ITALY (EIY)

1 VL931-VL932 VN682 VN753 VN811-VN812 VN972

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 Page 1 of 42

### BOEING SERVICE BULLETIN 767-57A0060
AIR FRANCE (AFA)

1 VN631-VN635 AIR MADAGASCAR (MAD)

1 VN376 AIR MAURITIUS (MAU)

1 VF001-VF002 AIR NAMIBIA (NAM)

1 VN385 AIR NEW ZEALAND (ANZ)

1 VB324 VE101-VE103 VN651-VN657 VN813 AIR PACIFIC (APC)

1 VN676 AIR SEYCHELLES (ASY)

1 VF051 VL941 AIR ZIMBABWE (ZMB)

1 VF061-VF062 AIRTOURS INT'L AIRWAYS (GUE)

1 VN951-VN953 ALITALIA (ALI)

1 VN422-VN427 ALL NIPPON AIRWAYS (ANA)

1 VB106-VB125 VK081-VK113 VN191-VN198 AMERICAN AIRLINES (AAL)

1 VA501-VA530 VN001-VN041 ANSETT AUSTRALIA (ANS)

1 VB051-VB055 VB321-VB322 VB325 VE118 VL755 ASIANA AIRLINES (AAR)

1 VK141-VK148 VL703 VN751 VW851 AVIANCA (AVI)

1 VE171-VE172 VF092 VN152 BIRGENAIR (BIR)

1 VE041 BRITANNIA AIRWAYS (BRI)

1 VB326-VB327 VB329-VB332 VL911-VL914 VN731 BRITISH AIRWAYS (BAB)

1 VN111-VN127 VN130-VN137 CANADIAN AIRLINES (CDI)

1 VN051-VN054 VN057-VN062 VN752

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 2

### BOEING SERVICE BULLETIN 767-57A0060
CHINA SOUTHERN AIRLINES (GUN)

1 VL701-VL702 CHINA YUNNAN AIRLINES (YUN)

1 VL871-VL873 CITY BIRD (CBD)

1 VN436 CONDOR (CDF)

1 VN683-VN691 DELTA AIR LINES (DAL)

1 VA301-VA315 VK031-VK056 VL753 VN251-VN273 VN301-VN306 EGYPTAIR (EGP)

1 VN211-VN212 EL AL ISRAEL AIRLINES (ELA)

1 VB281-VB284 VF101-VF102 ETHIOPIAN AIRLINES (ETH)

1 VE001-VE002 VN371 EVA AIR (EVA)

1 VB441-VB444 VN471-VN472 VN791-VN792 GULF AIR (GUL)

1 VL003-VL006 VN307-VN310 VN313-VN314 H.M.S.F. AND AMEDEO CORP. (BWN)

1 VF180 ITOCHU CORPORATION (CIT)

1 VF181-VF184 JAPAN AIRLINES (JAL)

1 VB371-VB373 VK001-VK015 VK021-VK022 VK181 K.B.A. FOUNDATION (KBA)

1 VN312 KALAIR USA CORP (KLA)

1 VN311 KLM - ROYAL DUTCH AIRLINES (KLM)

1 VL891-VL900 LAM (LAM)

1 VF162 LANCHILE AIRLINES (LAN)

1 VN063-VN064 VN531 VN557 VN966-VN969 VN971 LAUDA AIR (LAL)

1 VN242-VN243 VN388

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 3

### BOEING SERVICE BULLETIN 767-57A0060
LAUDA AIR S.P.A. (LDI)

1 VL011 VN671 LEISURE INTERNATIONAL AIRWAYS (UKL)

1 VN921-VN922 LOT POLISH AIRLINES (LOT)

1 VF041-VF042 VN291-VN293 LTU (LTU)

1 VN171-VN174 VN381 MALEV HUNGARIAN AIRLINES (HGA)

1 VF171-VF172 MARTINAIR HOLLAND (MTH)

1 VN221-VN225 VN672 MID EAST JET (SKL)

1 VF251 MIDAIR (MAI)

1 VE021 QANTAS (QAN)

1 VE061-VE063 VE067-VE069 VN081-VN099 2 VE066 ROYAL BRUNEI AIRLINES (RBA)

1 VN372 VN382-VN384 VN386-VN387 VN637-VN638 SAS (SAS)

1 VF071 VN151 VN153-VN158 VN163-VN168 VN536 VN551 SHANGHAI AIRLINES (SHA)

1 VK171 SOBELAIR (SBL)

1 VN421 VN636 SOUTH AFRICAN AIRWAYS (SAA)

1 VE022-VE023 SPANAIR (SPP)

1 VN541-VN542 TACA INTERNATIONAL AIRLINES (TAC)

1 VE116 VN732 THE BOEING COMPANY (TBC)

1 VA001 TRANSBRASIL (TBL)

1 VB251-VB253 VE104 VE117 VF072 VF161 VL001-VL002 VN532 TWA (TWA)

1 VA801-VA810 VB301-VB302 VN681

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 4

### BOEING SERVICE BULLETIN 767-57A0060
UNITED AIRLINES (UAL)

1 VA002-VA020 VN491-VN513 UPS (UPS)

1 VW701-VW718 US AIRWAYS (USA)

1 VE141-VE152 UZBEKISTAN AIRWAYS (UZB)

1 VL806-VL807 VARIG AIRLINES (VAR)

1 VE121-VE126 VN055-VN056 VN231-VN234 VIETNAM AIRLINES (VIE)

1 VL751-VL752 VL754 WHIRLPOOL FINANCIAL CORP. (ZZW)

1 VN537
IDENTIFICATION BY VARIABLE NUMBER GROUP 1 VA001-VA020 VA301-VA315 VA501-VA530 VA701-VA719 VA801-VA810 VB001-VB002 VB051-VB055 VB101-VB125 VB201-VB202 VB251-VB253 VB281-VB284 VB301-VB302 VB321-VB332 VB371-VB373 VB401 VB441-VB444 VE001-VE003 VE021-VE023 VE041-VE043 VE061-VE065 VE067-VE069 VE083-VE086 VE101-VE104 VE116-VE118 VE121-VE126 VE141-VE152 VE171-VE172 VF001-VF002 VF041-VF042 VF051 VF061-VF062 VF071-VF072 VF091-VF093 VF101-VF102 VF161-VF162 VF171-VF172 VF180-VF184 VF251 VK001-VK015 VK021-VK022 VK031-VK056 VK081-VK113 VK131-VK133 VK141-VK148 VK161-VK164 VK171 VK181 VL001-VL006 VL011 VL701-VL703 VL751-VL755 VL806-VL807 VL871-VL873 VL891-VL900 VL911-VL914 VL931-VL932 VL941 VN001-VN041 VN051-VN064 VN081-VN099 VN111-VN127 VN130-VN137 VN151-VN158 VN163-VN168 VN171-VN174 VN191-VN198 VN211-VN212 VN221-VN225 VN231-VN234 VN241-VN243 VN251-VN273 VN291-VN293 VN301-VN314 VN371-VN372 VN376 VN381-VN388 VN421-VN427 VN436 VN471-VN472 VN491-VN513 VN531-VN532 VN536-VN537 VN541-VN542 VN546-VN547 VN551 VN556-VN557 VN561-VN562 VN631-VN638 VN651-VN657 VN671-VN672 VN676 VN681-VN691 VN731-VN732 VN751-VN753 VN791-VN792 VN811-VN813 VN921-VN922 VN931-VN936 VN951-VN953 VN966-VN969 VN971-VN972 VW701-VW718 VW851 GROUP 2 VE066 2. Spares Affected None

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 5

### BOEING SERVICE BULLETIN 767-57A0060
B. Concurrent Requirements None C. Reason This service bulletin gives instructions to inspect for fuel leaks from the number 5 and 8 inboard slat track housing drain locations near the engine exhaust nozzles. Instructions are also given to rework or replace the slat track housing drain tube assembly as required. Fuel leaks from these drain locations could result in a fire when the airplane is standing still or in a low speed taxi. Accomplishment of this service bulletin will ensure the integrity of the drain tubes common to the slat track housing and prevent possible fuel leaks near an engine or exhaust nozzle when the airplane is on the ground. One operator reported a fuel leak from a slat track housing drain tube where the drain tube penetrates the lower wing skin. Further investigation revealed the fuel leak originated from a loose drain tube fitting. Six other operators have also reported fuel leaks from the slat track housing drain tube where the drain tube penetrates the lower wing skin. Further investigation revealed the fuel leaks originated from a crack in each of the drain tubes. The slat track housing drain tubes provide a drain path for moisture which can accumulate inside the slat track housing. The drain tubes are located inside the wing fuel tanks. Cracks in the drain tubes or a loose fitting can result in fuel migration into the drain tubes. Boeing Service Related Problem (SRP) 767-SRP-57-0072 is related to this service bulletin. As part of a service bulletin validation program, this change was completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 before the release of Revision 1 of this service bulletin. The change completed on airplane VE066 by Service Bulletin 767-57A0060 Validation Copy 1 is equivalent to the release of Revision 1 of this service bulletin except airplane VE066 requires more work as shown in PART IV - ADDITIONAL WORK. Revision 1 is sent to add terminating action to this service bulletin as follows: 1. Figures 3, 4, 5 and the PART - III TERMINATING ACTION are added to provide instructions to install a new slat track housing drain tube assembly for Group 1 and 2 airplanes. 2. Figure 6 and PART IV - ADDITIONAL WORK are added to provide instructions to rework the slat track housing drain tube assembly for the Group 2 airplane that incorporated PART III - TERMINATING ACTION as specified in Validation Copy 1. 3. Manpower tables are added for installation of the new slat track housing drain tube assembly. 4. Kit and Material Availability information is added for the new slat track housing drain tube installation. D. Description Inspect the exterior lower wing surface for fuel leaks at the inboard slat track housing drain location of each wing. If an indication of a fuel leak is found: 1. Rework the drain tube per PART II - REWORK and repeat the PART I - VISUAL INSPECTION until the PART III - TERMINATING ACTION is completed or, 2. Replace the drain tube per PART III - TERMINATING ACTION.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 6

### BOEING SERVICE BULLETIN 767-57A0060
Group 2 airplanes rework the drain tube per PART IV - ADDITIONAL WORK. No more work is necessary on Group 1 airplanes inspected or reworked as shown in the initial release of this service bulletin as a result of this revision. However, repeat inspections are required until terminating action is accomplished. More work is necessary on the Group 2 airplane VE066 reworked as shown in the Validation Copy 1 release of this service bulletin. After the validation of this service bulletin was completed on VE066 additional grounding requirements were added as given in the PART IV - ADDITIONAL WORK. The airplane effectivity is divided into two groups. Group 1 consists of airplanes that have not had terminating action incorporated prior to release of Revision 1 of this service bulletin. Group 2 consist of the airplane that had terminating action incorporated as specified in Validation Copy 1 of this service bulletin. An evaluation form is attached to this service bulletin. Please use this form to tell us what you think of the quality of this service bulletin. NOTE: Inspection, rework and maintenance alternatives are shown in a diagram in Section 3., ACCOMPLISHMENT INSTRUCTIONS. E. Compliance See Figure 1 for compliance recommendations and maintenance alternatives. For the Group 2 airplane Boeing recommends the PART IV - ADDITIONAL WORK be completed within 5000 flight-cycles or 22 months, whichever is earlier from the release of Revision 1 of this service bulletin. F. Approval This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this service bulletin comply with the applicable Federal Aviation Regulations (FAR) and are FAA approved. This service bulletin and the FAA approval were based on the airplane in its original Boeing delivery configuration or as modified by other FAA approved Boeing changes. If an airplane has a non-Boeing modification or repair that affects a component or system also affected by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this service bulletin. G. Manpower This estimate is for direct labor only, done by an experienced crew. Adjust the estimate with operator man-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 examine the work - Time to cure the materials - Time to make the parts - Time to find the tools. PART I - VISUAL INSPECTION Approximately 0.25 man-hours and 1 person is necessary to do the inspection for each wing.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 7

### BOEING SERVICE BULLETIN 767-57A0060

PART II - REWORK Approximately 10.0 man-hours and 2 persons are necessary to do the rework for each wing. PART III - TERMINATING ACTION Task Number of Persons Man-Hours Elapsed Time (Hours) Open Access 2 6 3 Remove Drain Tube Assy 2 4 2 Install Drain Tube Assy 2 6 3 Close Access 2 4 2 TOTAL FOR EACH WING 20 10 TOTAL FOR EACH AIRPLANE 40 20 PART IV - ADDITIONAL WORK Task Number of Persons Man-Hours Elapsed Time (Hours) Open Access 2 6 3 Rework Drain Tube Assy 2 4 2 Close Access 2 4 2 TOTAL FOR EACH WING 14 7 TOTAL FOR EACH AIRPLANE 28 14 H. Weight and Balance Changes Change in Weight Change in Moment + 1.7 lbs + 1547 lb-in I. Electrical Load Data Not changed

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 8

### BOEING SERVICE BULLETIN 767-57A0060

J. References 1. Existing Data: a. Engineering Change Memo PRRB12900-133 b. Service Related Problem (SRP) 767-SRP-57-0072 c. 767 Maintenance Manual (AMM) Subjects 12-11-01, 28-11-00 and 28-26-00 d. Boeing Standard Wiring Practices Manual (BSWPM) 20-20-00 e. Boeing Standard Overhaul Practices Manual (BSOPM) 20-11-03, 20-41-02, 20-43-03, 20-50-02, 20-50-11 and 20-50-19 f. 767 Maintenance Planning Document (MPD) 12-21-08 and 57-50-00-A g. Boeing Service Letter 767-SL-57-024 2. Data supplied with this service bulletin: None 3. Installation Drawings Used in the Preparation of this Service Bulletin: Drawing Number Title 112T2000 Front Spar Installation 112T2019 Drain Tube Installation 112T5090 Rib Installation These drawings were used to prepare this service bulletin. These drawings are not necessary to make the specified changes or do the specified inspections, and are not supplied with this service bulletin. These drawings may not be applicable to all airplane configurations or operators. K. Publications Changed Publication Chapter-Section 767 Maintenance Manual 12-21, 28-11 767 Illustrated Parts Catalog 57-40 L. Interchangeability and Intermixability of Parts Refer to Paragraph 2.E., Existing Parts Accountability, for interchangeability and intermixability information.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 9

### BOEING SERVICE BULLETIN 767-57A0060

BLANK PAGE

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 10

### BOEING SERVICE BULLETIN 767-57A0060

2. MATERIAL INFORMATION A. Material - Price and Availability Boeing can supply the kits shown in Paragraph 2.C., Parts Necessary For Each Airplane, as shown below. If there is a limit in the quantity of kits, a supply sequence is given by Spares. Kit Number Name Date Quantity ROLT Unit Price thru (weeks) June 1/99 015T1559-1 (a) Top Kit No Longer Available - - 015T1559-2 Top Kit Feb 25/99 178 52 5,236.00 015T1559-3 (b) Kit - Supplemental Feb 25/99 1 - 330.00

(a) Replaced by top kit 015T1559-2. (b) Supplements top kit 015T1559-1 and is only necessary for the Group 2 airplane. The kits are subject to the terms and conditions of the Boeing standard purchase order acknowledgment. After the Unit Price date, new price (and ROLT) data is applicable. Prices are in United States dollars. Terms: Net 30 days. Send purchase orders and letters about the supply data to the Director of Spares and refer to this service bulletin number. B. Industry Support Information Boeing warranty remedies are available for 767 airplanes in warranty as of May 6, 1996. For man-hour reimbursement for airplanes in warranty as of that date, send a warranty claim to Boeing Product Assurance Contracts. The kits for airplanes in warranty as of that date will be supplied at no charge. Send a purchase order for the kits to Boeing Spares. Please refer to this service bulletin number and reference the airplane variable number(s) in your purchase order. C. Parts Necessary For Each Airplane 1. Kits: To get the kits shown below, refer to Paragraph 2.A., Material - Price and Availability. NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts and Materials Supplied by the Operator, are necessary for each airplane. 015T1559 TOP KIT - SLAT TRACK CAN DRAIN TUBE. -4 -3 -2 -1 Quantity Part Number Name . . . - 015T1559-1 (a) Top Kit . . - . 015T1559-2 Top Kit . - . . 015T1559-3 (b) Kit, Supplemental - 2 . . 015T1559-4 Sub Kit . . . 1 112T2031-1 Kit Assy . . 1 . 112T2031-15 Kit Assy . . 1 . 112T2031-16 Kit Assy

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 11

### BOEING SERVICE BULLETIN 767-57A0060
(Continued) 015T1559 TOP KIT - SLAT TRACK CAN DRAIN TUBE. -4 -3 -2 -1 Quantity Part Number Name . . . 1 112T2031-2 Kit Assy 1 . . . 287T0020-325 Wire Support Assy 12 . . . BACB30FP6A4 Bolt 12 . . . BACC30M6 Collar 1 . . . BACJ40AC44-6 Jumper 1 . . . BACJ40AC44-8 Jumper 1 . . . BACJ40A20-8 Jumper 4 . . . BACN10YR3CD Nut 4 . . . BACR15FT6AD6 Rivet 3 . . . BACS12GU3K6 Screw 1 . . . AN735C8 Clamp 1 . . . AN735DC56 Clamp 1 . . . AN735DC8 Clamp 20 . . . NAS1149D0316H Washer 12 . . . NAS1149D0363H Washer (a) No longer available, replaced by top kit 015T1559-2 (b) Supplements top kit 015T1559-1 and is only necessary for the Group 2 airplane. 112T2031 KIT - SLAT TRACK CAN DRAIN TUBE OFSS 428.683 - WING.

-1 -2 -16 -15 Quantity Part Number Name . . . - 112T2031-15 Subkit, Kit Assy . . - . 112T2031-16 Subkit, Kit Assy . - . . 112T2031-2 Subkit, Kit Assy - . . . 112T2031-1 Subkit, Kit Assy 1 . . 1 112T2031-3 Drain Tube Assy 1 1 . 112T2031-4 Drain Tube Assy . . 2 2 112T2031-17 Doubler 1 1 1 1 112T5093-1 Doubler Assy . . 1 1 287T0020-325 Bracket Assy 1 1 1 1 112T5093-3 Doubler 1 1 1 1 AN735C8 Clamp, Bonding . . 1 1 AN735DC56 Clamp, Bonding 1 1 1 1 AN735DC8 Clamp, Bonding 12 12 . . BACB30VT6K4 Bolt 12 12 . . BACC30BP6 Collar

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 12

### BOEING SERVICE BULLETIN 767-57A0060
(Continued) 112T2031 KIT - SLAT TRACK CAN DRAIN TUBE OFSS 428.683 - WING.

-1 -2 -16 -15 Quantity Part Number Name . . 1 1 BACJ40AC44-6 Jumper . . 1 1 BACJ40AC44-8 Jumper 1 1 . . BACJ40A20-6 Jumper Assy . . 1 1 BACJ40A20-8 Jumper 2 2 4 4 BACN10YR3CD Nut 2 2 2 2 BACR15FR6E5 Rivet . . 4 4 BACR15FT6AD6 Rivet . . 16 16 BACR15FT6AD7 Rivet . . 12 12 BACR15FT6AD9 Rivet 2 2 3 3 BACS12GU3K6 Screw 3 3 3 3 MS20995AB Lockwire 4 4 4 4 MS29513-114 O-Ring . . 12 12 NAS1149D0363H Washer . . 20 20 NAS1149D0316H Washer 6 6 . . NAS1149D0316J Washer 2 2 . . NAS1149D0363J Washer 1 1 1 1 200-030-0001-501 Drain Tube 1 1 1 1 305B387S8 Coupling Assy 1 1 1 1 355B387S8 Coupling Assy 1 1 1 1 6310-8 Cap, Drain 2. Material Supplied by the Operator: Quantity Material Required Name 8 ounces BMS 3-24 (a) Grease 8 ounces BMS 5-26 Type II - Class B (a) Sealant (Optional to BMS 5-45) 8 ounces BMS 5-45 (a) Sealant 8 ounces BMS 5-95 - Class C (a) Sealant 8 ounces BMS 10-20 Type II (a) Primer 8 ounces BMS 11-7 (a) Solvent, Methyl Ethyl Ketone (MEK) or Optional, Methyl Propyl Ketone (MPK) (a) See the Qualified Products List at the end of the Boeing Material Specification (BMS) for supplier data. D. Parts Necessary to Change Spares None

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 13

### BOEING SERVICE BULLETIN 767-57A0060
E. Existing Parts Accountability The parts shown below are changed as shown in this service bulletin. Quantity (QTY) is the number of parts changed on each airplane.

Existing Part Number RUC Name QTY New Part Number PNC RC 112T2001-( ) RWK Drain Tube 2 - N A 355B387S8 DIS Coupling Nut 2 - - B RUC Recommended Use Code DIS - Discard the part. - Keep the part if there are other uses for it. RWK - Make the change given in this service bulletin. PNC Part Number Code N - There is no equivalent Boeing part number for the changed part. Identify on the part that the change given in this service bulletin was made. RC Replacement Code A - Do not use the existing part to replace the new or changed part. B - This part is removed from the airplane. This part has no replacement. F. Special Tooling - Price and Availability None G. Special Tooling Necessary to do this Service Bulletin No special tools or equipment are necessary to do the inspection or 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.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 14

### BOEING SERVICE BULLETIN 767-57A0060

3. ACCOMPLISHMENT INSTRUCTIONS GENERAL NOTES 1. The paragraphs identified with a letter give the general work instructions. The instructions identified with numbers on the figures give the recommended sequence of steps. 2. Unless shown differently, these dimensions and tolerances are used: - Linear dimensions are in inches - Tolerance on linear dimensions is plus or minus 0.03 inch - Angular tolerance is plus or minus 2 degrees - Torque limits to tighten nuts and bolts are given in 767 Structural Repair Manual Chapter 51. 3. Obey all of the warnings and cautions given in the specified manual sections. 4. See Figure 1 for compliance recommendations and maintenance alternatives. 5. As an alternative to the Boeing specified manuals, operators equivalent procedures can be used. WORK INSTRUCTIONS THE ACCOMPLISHMENT INSTRUCTIONS ARE DIVIDED INTO THESE PARTS: Group 1 and 2 Airplanes PART I - VISUAL INSPECTION Required on both exterior lower wing surfaces, common to the inboard slat track housing drain tube penetration until PART III - TERMINATING ACTION is completed. PART II - REWORK Required if a leak is found during the per PART I - VISUAL INSPECTION and the PART III - TERMINATING ACTION is not desired. PART III - TERMINATING ACTION Required if terminating action of the PART I - VISUAL INSPECTION is desired. See Figure 1 for details of compliance recommendations and maintenance alternatives. Group 2 Airplane PART IV - ADDITIONAL WORK More work is necessary on the Group 2 airplane, reworked as shown in the Validation Copy 1 release of this service bulletin. After the validation of this service bulletin was completed, additional grounding requirements were added. Boeing recommends the PART IV - ADDITIONAL WORK be completed within 5000 flight-cycles or 22 months, whichever is earlier from the release of Revision 1 of this service bulletin PART I - VISUAL INSPECTION A. Perform a visual inspection for fuel leaks or evidence of a fuel leak per Figure 2. NOTE: A minimum of 4400 gallons of fuel is required in each wing tank to adequately check for leaks common to the drain tube. B. If a fuel leak is not found, and terminating action is not desired, repeat the visual inspections at the intervals shown in Figure 1.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 15

### BOEING SERVICE BULLETIN 767-57A0060
C. If a fuel leak is found and terminating action is not desired, rework the drain tube per PART II - REWORK and repeat the visual inspections at the intervals shown in Figure 1. PART II - REWORK A. If an indication of a fuel leak is found and terminating action is not desired repair the drain tube as specified in 767 AMM 28-11-00. B. Continue the PART I - VISUAL INSPECTION at the intervals shown in Figure 1, until terminating action is completed per PART III - TERMINATING ACTION. C. Restore the airplane to a serviceable condition. PART III - TERMINATING ACTION If terminating action of the PART I - VISUAL INSPECTION is desired complete the following: A. Defuel the main tanks as specified in 767 AMM 28-26-00. B. Open the main tank access and dry bay access panels listed below as specified in 767 AMM 28-11-00, to access the number 5 and 8 inboard slat track housing drains. PANEL # LOCATION

533AB LEFT WING DRY BAY 633AB RIGHT WING DRY BAY 532FB LEFT WING MAIN TANK 632FB RIGHT WING MAIN TANK C. Remove the number 5 and 8 inboard slat track drain tube assemblies as shown in Figure 3. D. Group 1 airplanes, install the new number 5 and 8 inboard slat track drain tube assemblies as shown in Figure 4. E. Group 2 airplane, install the new number 5 and 8 inboard slat track drain tube assemblies as shown in Figure 5. F. Make sure the number 5 and 8 inboard slat track housing drain tube assemblies are free and clear of debree. G. Close the main tank access panels listed below as specified in 767 AMM 28-11-00. PANEL # LOCATION

532FB LEFT WING MAIN TANK 632FB RIGHT WING MAIN TANK H. Refuel the main tanks as specified in 767 AMM 12-11-01.

I. Perform a visual inspection of the number 5 and 8 inboard slat track drain tube opening, located in the dry bay to make sure there are no fuel leaks.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 16

### BOEING SERVICE BULLETIN 767-57A0060
J. Close the dry bay access panels listed below as specified in 767 AMM 28-11-00. PANEL # LOCATION

533AB LEFT WING DRY BAY 633AB RIGHT WING DRY BAY K. Restore the airplane to a servicable condition. PART IV - ADDITIONAL WORK A. Defuel the main tanks as specified in 767 AMM 28-26-00. B. Open the main tank access and dry bay access panels listed below as specified in 767 AMM 28-11-00, to access the number 5 and 8 inboard slat track housing drains. PANEL # LOCATION

533AB LEFT WING DRY BAY 633AB RIGHT WING DRY BAY 532FB LEFT WING MAIN TANK 632FB RIGHT WING MAIN TANK C. Rework the number 5 and 8 inboard slat track drain tube assemblies as shown in Figure 6. D. Make sure the number 5 and 8 inboard slat track housing drain tube assemblies are free and clear of debree. E. Close the main tank access panels listed below as specified in 767 AMM 28-11-00. PANEL # LOCATION

532FB LEFT WING MAIN TANK 632FB RIGHT WING MAIN TANK F. Refuel the main tanks as specified in 767 AMM 12-11-01. G. Perform a visual inspection of the number 5 and 8 inboard slat track drain tube opening, located in the dry bay to make sure there are no fuel leaks. H. Close the dry bay access panels listed below as specified in 767 AMM 28-11-00. PANEL # LOCATION

533AB LEFT WING DRY BAY 633AB RIGHT WING DRY BAY I. Restore the airplane to a servicable condition.

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 17

### BOEING SERVICE BULLETIN 767-57A0060

FIGURE TABLE OF CONTENTS Title Page FIGURE 1. GROUP 1 - LOGIC DIAGRAM FOR INSPECTION AND MAINTENANCE ALTERNATIVES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 FIGURE 2. VISUAL INSPECTION. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 FIGURE 3. INBOARD SLAT TRACK DRAIN TUBE REMOVAL . . .. . . . . . . . . . . . . . 23 FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

January 30, 1997 767-57A0060 Revision 1: December 31, 1998 18

### BOEING SERVICE BULLETIN 767-57A0060



### THE INITIAL RELEASE OF THIS SERVICE BULLETIN. DO THE FOLLOWING WITHIN 500 FLIGHT-HOURS FROM

DO PART III - TERMINATING ACTION. FLIGHT-HOURS. INSPECTION WITHIN 500 PART II - REWORK. DRAIN TUBE AS SHOWN IN

FLIGHT-HOURS. INSPECTION WITHIN 500 REPEAT THE PART I - VISUAL REPEAT THE PART I - VISUAL FUEL LEAK FOUND.

REWORK THE SLAT TRACK HOUSING NO FUEL LEAK FOUND. SLAT TRACK HOUSING DRAIN TUBE PENETRATIONS. DO PART I - VISUAL INSPECTION OF BOTH EXTERIOR LOWER WING SURFACE AREAS FOR A FUEL LEAK FROM THE INBOARD 2 1R93564

FIGURE 1. GROUP 1 - LOGIC DIAGRAM FOR INSPECTION AND MAINTENANCE ALTERNATIVES January 30, 1997 SHEET 1 OF 2 767-57A0060 Revision 1: December 31, 1998 19

### BOEING SERVICE BULLETIN 767-57A0060
The flag note numbers shown below agree with the number shown in the flag symbols in the figure.

FLAG NOTE NOTES 1 If the inspection per Boeing Service Letter 767-SL-57-024, dated March 7, 1995 or later, has been accomplished then the initial inspection is not required. Repeat inspection per PART I - VISUAL INSPECTION is required, within 500 flight-hours after completion of inspections per Boeing Service Letter 767-SL-57-024. 2 If operators are in compliance with the Boeing Transit Check Inspection recommendations per Boeing 767 MPD 57-50-00-A, the initial inspection and repeat inspections listed in this service bulletin are not required.

FIGURE 1. GROUP 1 - LOGIC DIAGRAM FOR INSPECTION AND MAINTENANCE ALTERNATIVES January 30, 1997 SHEET 2 OF 2 767-57A0060 Revision 1: December 31, 1998 20

### BOEING SERVICE BULLETIN 767-57A0060



### 1 RIGHT WING SIMILAR

LEFT WING SHOWN

INSTALLATION DRAIN TUBE SPAR FRONTR93556

FIGURE 2. VISUAL INSPECTION January 30, 1997 SHEET 1 OF 2 767-57A0060 Revision 1: December 31, 1998 21

### BOEING SERVICE BULLETIN 767-57A0060
The step number shown below agree with the number shown in the circle symbol in the figure.

STEP TASK LOCATION PROCEDURE NOTES 1 Inspect Exterior lower wing panel at the most inboard drain location 767 AMM 28-11-00 or 767 MPD Section 5, Number 12-21-08 visually for a fuel leak or evidence of a fuel leak. Refer to 767 AMM 28-11-00 for fuel leak limits.

FIGURE 2. VISUAL INSPECTION January 30, 1997 SHEET 2 OF 2 767-57A0060 Revision 1: December 31, 1998 22

### BOEING SERVICE BULLETIN 767-57A0060



### RIB NO. 9

SKIN LOWER WING 0.40 + 0.06 HOUSING SLAT TRACK FRONT SPAR A SEE

B SEE 

## A 1 3 2
FWD INBD UPS26953

FIGURE 3. INBOARD SLAT TRACK DRAIN TUBE REMOVAL January 30, 1997 SHEET 1 OF 3 767-57A0060 Revision 1: December 31, 1998 23

### BOEING SERVICE BULLETIN 767-57A0060



## B 6 4 CAP 4 LOCKWIRE O-RING 4

SKIN SURFACE WING LOWER 5 FWD INBD UPS27033

FIGURE 3. INBOARD SLAT TRACK DRAIN TUBE REMOVAL January 30, 1997 SHEET 2 OF 3 767-57A0060 Revision 1: December 31, 1998 24

### BOEING SERVICE BULLETIN 767-57A0060
The step number shown below agree with the number shown in the circle symbol in the figure. The QTY numbers shown below are the number of parts necessary for one side of the airplane.

STEP TASK NAME PART NUMBER QTY NOTES 1 Cut Drain Tube 112T2001-( ) 1 from the slat track housing as indicated. Maintain a finish of 125 AA or better with no burrs. 2 Remove / Discard Cut Drain Tube and Jumper Assy 112T2001-( ) 1 by disconnecting the half coupling assembly common to the wing skin. Coupling Nut 355B387S8 1 3 Apply Alodine 600 - to refinish the cut end of the drain tube common to the slat track housing. Refer to BSOPM 20-43-03 and 20-41-02 Primer BMS 10-20, TYPE II - 4 Install O-Ring MS29513-114 1 by lightly applying a layer of BMS 3-24 to the coupling components prior to assembly. Assemble and lockwire coupling cap assembly. Refer to BSOPM 20-50-02. Cap 6310-8 1 Lockwire MS20995AB
- 5 Apply Injection Seal BMS 5-26 Type II - Class B - to fill the drain exit cavity and make flush common to the exterior lower wing panel. Refer to BSOPM 20-50-19 and 20-50-11. 6 Apply Fillet Seal BMS 5-26 Type II - Class B - around the coupling cap assembly. Refer to BSOPM 20-50-19.

FIGURE 3. INBOARD SLAT TRACK DRAIN TUBE REMOVAL January 30, 1997 SHEET 3 OF 3 767-57A0060 Revision 1: December 31, 1998 25

### BOEING SERVICE BULLETIN 767-57A0060



### A SEE

RIB NO. 9



## A D SEE

WING LOWER SKIN HOUSING SLAT TRACK FRONT SPAR

E SEE B SEE
FWD INBD UPS26912

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 1 OF 6 767-57A0060 Revision 1: December 31, 1998 26

### BOEING SERVICE BULLETIN 767-57A0060

C6

6



### 4

TUBE DRAIN

FLEX HOSE

O-RING

RETAINING RING 

## BSEE C C 6F 9 

### 5 1 D 

### 17



## C

7 7 C 6F



### 8 16

14

4 4 6 3

2

FWD UP 

## A-AJUMPER (c) BONDING

FWD (4 LOCATIONS)

DOUBLER

BRACKET A A

FWD INBD UP 3.21

+/-0.10

4.20 +/-0.10S27116

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 2 OF 6 767-57A0060 Revision 1: December 31, 1998 27

### BOEING SERVICE BULLETIN 767-57A0060

B 

### WASHER (a)

JUMPER (a) BONDING WASHER (b) WASHER (c) NUT
WASHER (a)

RETAINING RING 17BONDING CLAMP (c)



## D

CLAMP (a) BONDING 17

RETAINER HALF COUPLING BODY COUPLING NUT15



## E JUMPER (a) BONDING B 

### BONDING JUMPER (b) WASHER (b) WASHER (c) BONDING JUMPER (c) B 

### WASHER (a)

JUMPER (b) WASHER (a)

BONDINGNUT CLAMP (b)

BONDING SLAT TRACK HOUSING

SEAL PREPACK

FWD UP A 

### 10 12 11

11 9 13

O-RING

RING RETAINING 0.53 + 0.06

17S27291

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 3 OF 6 767-57A0060 Revision 1: December 31, 1998 28

### BOEING SERVICE BULLETIN 767-57A0060
The step number shown below agree with the number shown in the circle symbol in the figure. The QTY numbers shown below are the number of parts necessary for one side of the airplane.

STEP TASK NAME PART NUMBER QTY NOTES 1 LocateDoubler 112T2031-17 2 in position on the inboard and outboard sides of rib 9 web as indicated. 2 Drill Hole
--- 1 through both doublers and the rib 9 web to a 0.420 - 0.480 inch diameter. Clean and deburr hole maintain a finish of 125 AA or better. 3 LocateDoubler 112T5093-3 1 in position common to rib 9 web as indicated. Doubler Assy 112T5093-1 1 4 Drill Holes
--- 28 in the doublers, doubler assembly and the rib 9 web as indicated. Clean and deburr holes. 5 Install Doubler 112T2031-17 2 wet by applying a faying surface seal between the doublers and the web using BMS 5-95. Refer to BSOPM 20-50-19. Install fasteners as indicated. Fasteners
--- 16 6 Install Doubler 112T5093-3 1 wet by applying a faying surface seal between the installed doublers and the doublers using BMS 5-95. Refer to BSOPM 20-50-19. Install fasteners as indicated. Doubler Assy 112T5093-1 1 Fasteners
--- 12 7 Apply Fillet Seal BMS 5-26
- common to the outboard side of the web and the doubler assembly as indicated. Refer to BSOPM 20-50-19. Type II Class B 8 Apply Fillet Seal BMS 5-95
- common to the inboard side of the web and the doubler assembly as indicated. Refer to BSOPM 20-50-19. Class C 9 LocateDrain Tube Assy 112T2031-3 112T2031-4(LH) (RH) 1 in position common to the slat track drain housing as indicated. 10 Drill Holes
--- 2 in drain tube assembly and slat track drain housing as indicated. Clean and deburr holes then apply alodine 600 and BMS 10-20, Type II. Refer to BSOPM 20-43-03 and 20-41-02. 11 Install Drain Tube Assy 112T2031-3 112T2031-4(LH) (RH) 1 wet by prepacking with seal between the slat track drain housing and the drain tube assembly using BMS 5-26. Install fasteners wet with BMS 5-26, Type II Class B as indicated. Refer to BSOPM 20-50-19. Fasteners
--- 2 12 Apply Fillet Seal BMS 5-26
- common to the fastener head and the drain tube assembly as indicated. Refer to BSOPM 20-50-19. Type II Class B 13 Apply Fillet Seal BMS 5-26
- common to the slat track drain housing and the drain tube assembly as indicated. Refer to BSOPM 20-50-19. Type II Class B

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 4 OF 6 767-57A0060 Revision 1: December 31, 1998 29

### BOEING SERVICE BULLETIN 767-57A0060
(Continued) STEP TASK NAME PART NUMBER QTY NOTES

14 Install O-Ring MS29513-114 1 by lightly applying a layer of BMS 3-24 to the coupling components prior to assembly. Install the o-ring between the retaining rings included with the coupling assembly. Hand tighten coupling nut. Lockwire per BSOPM 20-50-02. Drain Tube 200-030-0001-501 1 Coupling Assy 355B387S8 1 NOTE: During hand forming of drain tube use care not to overbend or flatten the flex portion of tube. Minimum inside bend radius is 0.75. Lockwire MS20995AB
- 15 Install O-Ring MS29513-114 2 by lightly applying a layer of BMS 3-24 to the coupling components prior to assembly. Install the o-rings between the retaining rings and the retainer halve included with the coupling assembly as indicated. Place the tube ends together with a gap of (0.150 plus or minus 0.050 inches) between the ferrules. Snap the retainer halves together. Hand tighten coupling nut to the body of the coupling assembly. Make sure the assembled coupling meets the indicated dimension of (0.53 plus or minus 0.06). Lockwire per BSOPM 20-50-02. Coupling Assy 305B387S8 1

Lockwire MS20995AB
-

16 Install Bracket 287T0020-325 1 to the rib 9 stiffener as indicated. Refer to BSOPM 20-11-03. Fasteners
--- 4 17 Install Bonding Clamp "a" AN735C8 1 Designated (electrostatic) bond path. Prepare fay surface bond and install parts per BSWPM 20-20-00, except fillet seal bonding clamps with BMS 5-45, Class B. Refer to BSOPM 20-50-19. Ensure entire bond surface is free of finish. Use cleaning method CM1 if finish is present or CM3 if surface is bare. Refer to BSWPM 20-20-00. Apply alodine 600 and BMS 10-20, Type II to any bare metal areas remaining after the bonding clamps and fillet seal is installed. Refer to BSOPM 20-43-03 and 20-41-02. Reference Note (a) for bonding jumper "b" and "c" installation sequence. Verify resistance does not exceed .010 OHMS. Measure the resistance from the rib 9 stiffener at least .25 inches away from the bonding bracket to the slat track drain can at least .25 inches away from the bonding jumper attachment. Refer to BSWPM 20-20-00 and BSOPM 20-11-03. Bonding Clamp "b" AN735DC8 1 Bonding Clamp "c" AN735DC56 1 Bonding Jumper "a" BACJ40A20-8 1 Bonding Jumper "b" BACJ40AC44-6 1 Bonding Jumper "c" BACJ40AC44-8 1
Fasteners
--- 4 (a) Install bonding jumper "b" with the terminal end marked by a red band to bonding clamp "b" and connect the terminal end marked with a blue band to bonding clamp "a". Install bonding jumper "c" with the terminal end marked by a red band to the bracket installed on the rib 9 stiffener and connect the terminal end marked with a blue band to bonding clamp "b".

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 5 OF 6 767-57A0060 Revision 1: December 31, 1998 30

### BOEING SERVICE BULLETIN 767-57A0060
The codes shown below agree with the letter shown in the upper left corner of the fastener symbols in the figure. A number in the upper right corner gives the diameter of the fastener. A number in the lower right hand corner gives the grip length of the fastener.



### COUNTERSINK
(OPTIONAL) EXAMPLE OF FASTENER CODE LENGTH/GRIP FASTENER 7 6F(OPTIONAL) DIAMETER FASTENER

(OPTIONAL) F = FAR SIDE N = NEAR SIDE HEAD LOCATION LETTER CODE
D CB53324

CODE NAME PART NUMBER HOLE DIA NOTES A Rivet BACR15FR6E5 0.205 - 0.209 B Screw BACS12GU3K6
--- Washer (a) NAS1149D0316H Washer (b) NAS1149D0363H Washer (c) NAS1149D0316H Use two washers if and as required to prevent crushing of drain tube. Nut BACN10YR3CD C Rivet BACR30FT6AD* 0.190 - 0.193 D Washer NAS1149D0316H
--- Nut BACN10YR3CD

FIGURE 4. GROUP 1 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 6 OF 6 767-57A0060 Revision 1: December 31, 1998 31

### BOEING SERVICE BULLETIN 767-57A0060



### D SEE FRONT SPAR

SLAT TRACK HOUSING

SKIN WING LOWER B SEE

C SEE



## A RIB NO. 9 A SEE

FWD INBD UPS72210

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 1 OF 6 767-57A0060 Revision 1: December 31, 1998 32

### BOEING SERVICE BULLETIN 767-57A0060



### 1 CF 

### 4



## A-A FWD UP 12

HOSE FLEX O-RING

RETAINING RING

DRAIN

TUBE 44

3 2 6

5 4 2



## B A

A

FWD INBD UP
+/-0.10 3.21

+/-0.10

4.20S72209

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 2 OF 6 767-57A0060 Revision 1: December 31, 1998 33

### BOEING SERVICE BULLETIN 767-57A0060



### RETAINING RING A 

### 10 SEAL PREPACK 11

WASHER (a)

BONDING JUMPER BONDING JUMPER

RING RETAINING O-RING 0.53 + 0.06

HALF RETAINER COUPLING NUT

BODY COUPLING BONDING1516 13 CLAMP BONDING 1416

WASHER (b) WASHER (c) WASHER (a)

NUT B 

### 16

CLAMP 

## C FWD UP SLAT TRACK HOUSING

8 9

9 7



## DS72211

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 3 OF 6 767-57A0060 Revision 1: December 31, 1998 34

### BOEING SERVICE BULLETIN 767-57A0060
The step number shown below agree with the number shown in the circle symbol in the figure. The QTY numbers shown below are the number of parts necessary for one side of the airplane.

STEP TASK NAME PART NUMBER QTY NOTES 1 Drill Hole
--- 1 to a 0.420 - 0.480 diameter in rib 9 web as indicated. Maintain a finish of 125 AA or better with no burrs. 2 LocateDoubler 112T5093-3 1 in position common to rib 9 web as indicated. Doubler Assy 112T5093-1 1 3 Drill Holes
--- 12 in doubler, doubler assembly and the rib 9 web as indicated. 4 Install Doubler 112T5093-3 1 wet by applying a faying surface seal between the doublers and the web using BMS 5-95. Refer to BSOPM 20-50-19. Install fasteners as indicated. Doubler Assy 112T5093-1 1 Fasteners
--- 12 5 Apply Fillet Seal BMS 5-26
- common to the outboard side of the web and the doubler assembly. Refer to BSOPM 20-50-19. Type II Class B 6 Apply Fillet Seal BMS 5-95
- common to the inboard side of the web and the doubler assembly. Refer to BSOPM 20-50-19. Class C 7 LocateDrain Tube Assy 112T2031-3 112T2031-4 (LH) (RH) 1 in position common to the slat track drain housing as indicated. 8 Drill Holes
--- 2 in drain tube assembly and slat track drain housing as indicated. 9 Install Drain Tube Assy 112T2031-3 112T2031-4 (LH) (RH) 1 wet by prepacking with seal between the slat track drain housing and the drain tube assembly using BMS 5-26. Refer to BSOPM 20-50-19. Install fasteners as indicated. Fasteners
--- 2 10 Apply Fillet Seal BMS 5-26
- common to the fastener head and the drain tube assembly as indicated. Refer to BSOPM 20-50-19. Type II Class B 11 Apply Fillet Seal BMS 5-26
- common to the slat track drain housing and the drain tube assembly as indicated. Refer to BSOPM 20-50-19. Type II Class B 12 Install O-Ring MS29513-114 1 by lightly applying a layer of BMS 3-24 to the coupling components prior to assembly. Install the o-ring between the retaining rings included with the coupling assembly. Hand tighten coupling nut. Lockwire per BSOPM 20-50-02. Drain Tube 200-030-0001-501 1 Coupling Assy 355B387S8 1 NOTE: During hand forming of drain tube use care not to overbend or flatten the flex portion of tube. Minimum bend radius is 0.75. Lockwire MS20995AB
-

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 4 OF 6 767-57A0060 Revision 1: December 31, 1998 35

### BOEING SERVICE BULLETIN 767-57A0060
(Continued) STEP TASK NAME PART NUMBER QTY NOTES

13 Install O-Ring MS29513-114 2 by lightly applying a layer of BMS 3-24 to the coupling components prior to assembly. Install the o-rings between the retaining rings and the retainer halve included with the coupling assembly as indicated. Place the tube ends together with a gap of (0.150 plus or minus 0.050 inches) between the ferrules. Snap the retainer halves together. Hand tighten coupling nut to the body of the coupling assembly. Make sure the assembled coupling meets the indicated dimension of (0.53 plus or minus 0.06). Lockwire per BSOPM 20-50-02. Coupling Assy 305B387S8 1

Lockwire MS20995AB
-

14 LocateBonding Clamp AN735C8 1 as indicated. 15 LocateBonding Clamp AN735DC8 1 as indicated. 16 Install Bonding Clamp AN735C8 1 Bond and assemble with indicated fasteners as specified in BSOPM 20-11-03. Except total resistance across each bond is to be (0.010 ohms maximum). BMS 10-20 fuel tank coating is not required after the electrical bonding on the aluminum slat track drain tube. Bonding Clamp AN735DC8 1 Bonding Jumper BACJ40A20-6 1 Fasteners
--- 2

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 5 OF 6 767-57A0060 Revision 1: December 31, 1998 36

### BOEING SERVICE BULLETIN 767-57A0060
The codes shown below agree with the letter shown in the upper left corner of the fastener symbols in the figure. A number in the upper right corner gives the diameter of the fastener. A number in the lower right hand corner gives the grip length of the fastener.



### COUNTERSINK
(OPTIONAL) EXAMPLE OF FASTENER CODE LENGTH/GRIP FASTENER 7 6F(OPTIONAL) DIAMETER FASTENER

(OPTIONAL) F = FAR SIDE N = NEAR SIDE HEAD LOCATION LETTER CODE
D CB53324

CODE NAME PART NUMBER HOLE DIA NOTES A Rivet BACR15FR6E5 0.205 - 0.209 B Screw BACS12GU3K6
---
Use 2 washers if and as required to prevent crushing of drain tube. Washer (a) NAS1149D0316J Washer (b) NAS1149D0363J Washer (c) NAS1149D0316J Nut BACN10YR3CD C Bolt BACB30VT6K4 0.187 - 0.190 Collar BACC30BP6

FIGURE 5. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE INSTALLATION January 30, 1997 SHEET 6 OF 6 767-57A0060 Revision 1: December 31, 1998 37

### BOEING SERVICE BULLETIN 767-57A0060



### A SEE

RIB NO. 9



## A D SEE

WING LOWER SKIN HOUSING SLAT TRACK FRONT SPAR

E SEE B SEE
FWD INBD UPS71995

FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK January 30, 1997 SHEET 1 OF 5 767-57A0060 Revision 1: December 31, 1998 38

### BOEING SERVICE BULLETIN 767-57A0060

C6

6 

### 4



## A-A HOSE FLEX



## B DRAIN

TUBE

SEE C B 

### 1 2 3

FWD UP 

## C D



### ASSEMBLY DOUBLER BRACKET JUMPER (c) BONDING (4 LOCATIONS)

FWD A

A

FWD INBD UP

+/-0.10

4.20S72202

FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK January 30, 1997 SHEET 2 OF 5 767-57A0060 Revision 1: December 31, 1998 39

### BOEING SERVICE BULLETIN 767-57A0060



### WASHER (a)
A



### JUMPER (a) BONDING 

## D

WASHER (b) SLAT TRACK HOUSING

NUT WASHER (a) FWD UP CLAMP (c) 6 BONDING

WASHER (c) A



### NUT

A


### BONDING JUMPER (a) WASHER (c) WASHER (b)

WASHER (a)



## E CLAMP (b)

JUMPER (b) BONDING 6 5 BONDING

ASSEMBLY COUPLING WASHER (a) BONDING

JUMPER (b) BONDING CLAMP 6 5 BONDING JUMPER (c) DRAIN TUBES72239

FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK January 30, 1997 SHEET 3 OF 5 767-57A0060 Revision 1: December 31, 1998 40

### BOEING SERVICE BULLETIN 767-57A0060
The step number shown below agree with the number shown in the circle symbol in the figure. The QTY numbers shown below are the number of parts necessary for one side of the airplane.

STEP TASK NAME PART NUMBER QTY NOTES 1 Remove / Discard Fasteners 12 from the doubler assembly. 2 Install Fasteners
--- 12 in the doubler assembly as indicated. 3 Apply Fillet Seal BMS 5-45
- to both ends of the (12) fasteners installed in the doubler assembly. Refer to BSOPM 20-50-19. 4 Install Bracket 287T0020-325 1 to the rib 9 stiffener as indicated. Refer to BSOPM 20-11-03. Fasteners
--- 4 5 Remove / Discard Bonding Clamp AN735C8 1 Bonding Clamp AN735DC8 1 Bonding Jumper BACJ40A20-6 1 Fasteners
--- 2 6 Install Bonding Clamp "a" AN735C8 1 Designated (electrostatic) bond path. Prepare fay surface bond and install parts per BSWPM 20-20-00, except fillet seal bonding clamps with BMS 5-45, Class B. Refer to BSOPM 20-50-19. Ensure entire bond surface is free of finish. Use cleaning method CM1 if finish is present or CM3 if surface is bare. Refer to BSWPM 20-20-00. Apply alodine 600 and BMS 10-20, Type II to any bare metal areas remaining after the bonding clamps and fillet seal is installed. Refer to BSOPM 20-43-03 and 20-41-02. Reference Note (a) for bonding jumper "b" and "c" installation sequence. Verify resistance does not exceed .010 OHMS. Measure the resistance from the rib 9 stiffener at least .25 inches away from the bonding bracket to the slat track drain can at least .25 inches away from the bonding jumper attachment. Refer to BSWPM 20-20-00 and BSOPM 20-11-03. Bonding Clamp "b" AN735DC8 1 Bonding Clamp "c" AN735DC56 1 Bonding Jumper "a" BACJ40A20-8 1 Bonding Jumper "b" BACJ40AC44-6 1 Bonding Jumper "c" BACJ40AC44-8 1
Fasteners
--- 4 (a) Install bonding jumper "b" with the terminal end marked by a red band to bonding clamp "b" and connect the terminal end marked with a blue band to bonding clamp "a". Install bonding jumper "c" with the terminal end marked by a red band to the bracket installed on the rib 9 stiffener and connect the terminal end marked with a blue band to bonding clamp "b".

FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK January 30, 1997 SHEET 4 OF 5 767-57A0060 Revision 1: December 31, 1998 41

### BOEING SERVICE BULLETIN 767-57A0060
The codes shown below agree with the letter shown in the upper left corner of the fastener symbols in the figure. A number in the upper right corner gives the diameter of the fastener. A number in the lower right hand corner gives the grip length of the fastener.



### COUNTERSINK
(OPTIONAL) EXAMPLE OF FASTENER CODE LENGTH/GRIP FASTENER 7 6F(OPTIONAL) DIAMETER FASTENER

(OPTIONAL) F = FAR SIDE N = NEAR SIDE HEAD LOCATION LETTER CODE
D CB53324

CODE NAME PART NUMBER HOLE DIA NOTES A Screw BACS12GU3K6
--- Washer (a) NAS1149D0316H Washer (b) NAS1149D0363H Washer (c) NAS1149D0316H Use two washers if and as required to prevent crushing of drain tube. Nut BACN10YR3CD B Bolt BACB30FP6A4 0.200 - 0.203 Collar BACC30M6 C Rivet BACR30FT6AD* 0.190 - 0.193 D Washer NAS1149D0316H
--- Nut BACN10YR3CD

FIGURE 6. GROUP 2 - INBOARD SLAT TRACK DRAIN TUBE ADDITIONAL WORK January 30, 1997 SHEET 5 OF 5 767-57A0060 Revision 1: December 31, 1998 42

### Commercial Airplane Group 

# 767 Service Bulletin

Number: 767-57A0060 

## Evaluation Form Date: January 30, 1997 Revision 1: December 31, 1998 ATA System: 5740 2781 2811 Prepared By: Robert Mehring

SUBJECT:WINGS - Leading Edge and Leading Edge Devices - Slat Track Housing - Drain Tube Fuel Leak Inspection and Rework Use this evaluation form to tell us what you think of the quality of this service bulletin. We will use the data that you give us to improve the quality of our service bulletins. NOTE: Please do not use this evaluation form to tell us to make changes to your manuals. To make these changes, please use a Publication Change Request (PCR) form. Please give us this data: (If necessary, please use the other side. Thank you for the time you used to give us your comments.) OPERATOR: TODAY'S DATE: PREPARED BY: TITLE: ORGANIZATION: TELEX CODE: TELEPHONE NUMBER: BASE: Please rate the quality of this service bulletin: (good) 4321 (poor) Please rate the quality of the illustrations: (good) 4321 (poor) Will you do the change given by this service bulletin? Yes No If not, please explain: Is this service bulletin easy to understand? Yes No If not, please explain: Is this service bulletin easy to use? Yes No If not, please explain: Are the Planning Information, Material Information, and Accomplishment Instructions accurate? Yes No If not, please explain: Is the Manpower estimate accurate? Yes No If not, please explain:
Give the completed evaluation form to your Boeing Field Service Representative or send the evaluation form directly to this address: Manager Service Bulletin Engineering Boeing Commercial Airplane Group P.O. Box 3707, Mail Stop 2H-37 Seattle, WA 98124-2207

Revision 1: December 31, 1998