Copy · U.S. DOT/FAA - SB-767-25-0428-03 · 66 pages

© The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2011-0719; AD 2012-11-11 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

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Show pages 25–36

MORE DATAQTYIDENTIFICATIONNAMETASKSTEP -8MS16624-4031SNAP RINGRemove1 -8AN960C516LWASHERRemove -4416T2232-1SEPARATION

LINK ASSY Remove2 -4416T2231-1SPRINGRemove/Keep -4BACW10P219TFTEFLON WASHERRemove/Keep -4416T2232-2SEPARATION

LINK ASSY Remove3 -4416T2231-2SPRINGRemove/Keep -4BACW10P219TFTEFLON WASHERRemove/Keep -8NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWRemove/Keep4 Do a general visual inspection of the separation link housing assembly for worn primer around the separation link assembly.

-416T2215-1SEPARATION

LINK HOUSING

ASSEMBLY Inspect5 Apply two coats of BMS 10-11, Type 1 primer to housing if worn. Refer to SOPM 20-41-02 as an accepted procedure.

-BMS 10-11PRIMERApply FIGURE 3: SEPARATION LINK ASSEMBLY REMOVAL (SHEET 3 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 23, 2007 767-25-0428Revision 3 October 21, 2010 37 of 66 BOEING SERVICE BULLETIN 767-25-0428

Page 38OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428 This Figure applies only to: Group 2, 4.

AFT

SERVICE DOOR > MID • AFT

SERVICE ENTRY

DOOR DOOR

FORWARD

SERVICE DOOR MID

ENTRY DOOR

FORWARD

ENTRY DOOR SEE A (6 LOCATIONS)

DEPLOYMENT BAR SEE INBD < 1362459 FIGURE 4: SEPARATION LINK ASSEMBLY REMOVAL (SHEET 1 OF 3) Original Issue: August 23, 2007 Revision 3 October 21, 2010 767-25-0428

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 38 of 66

Page 39OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428 SEE • SEE C DINBD 1362452 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for each airplane.

FIGURE 4: SEPARATION LINK ASSEMBLY REMOVAL (SHEET 2 OF 3) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 39 of 66

MORE DATAQTYIDENTIFICATIONNAMETASKSTEP -12MS16624-4031SNAP RINGRemove1 -12AN960C516LWASHERRemove -6416T2232-1SEPARATION

LINK ASSY Remove2 -6416T2231-1SPRINGRemove/Keep -6BACW10P219TFTEFLON WASHERRemove/Keep -6416T2232-2SEPARATION

LINK ASSY Remove3 -6416T2231-2SPRINGRemove/Keep -6BACW10P219TFTEFLON WASHERRemove/Keep -12NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWRemove/Keep4 Do a general visual inspection of the separation link housing assembly for worn primer around the separation link assembly.

-416T2215-1SEPARATION

LINK HOUSING

ASSEMBLY Inspect5 Apply two coats of BMS 10-11, Type 1 primer to housing if worn. Refer to SOPM 20-41-02 as an accepted procedure.

-BMS 10-11PRIMERApply FIGURE 4: SEPARATION LINK ASSEMBLY REMOVAL (SHEET 3 OF 3)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 23, 2007 767-25-0428Revision 3 October 21, 2010 40 of 66 BOEING SERVICE BULLETIN 767-25-0428

Page 41OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428 This Figure applies only to: Group 1, 3.

AFT

SERVICE DOOR

FORWARD

SERVICE AFT

DOOR ENTRY DOOR

• FORWARD

ENTRY DOOR SEE 1 (4 LOCATIONS) SEE INBD 1362665 FIGURE 5: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 1 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 Copyright © Unpublished Work - See page 1 for details. BOEING PROPRIETARY - 767-25-0428 41 of 66

Page 42OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428

SEPARATION LINK

HOUSING

PLACARD SEE DO

SEPARATION

LINK HOUSING SEE CO

PLACARD UP DINBD 1362682 FIGURE 5: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 2 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 42 of 66

Page 43OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428

•SEPARATION LINK (10

HOUSING PIN

SEPARATION LINK ~ SEE (G HOUSING PIN SEE

SEPARATION SEPARATION

SPRING LINK PIN LINK PIN SPRING 10

SEPARATION LINK

ASSEMBLY

SEPARATION LINK

ASSEMBLY The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for each airplane.

FIGURE 5: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 3 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 43 of 66

MORE DATAQTYIDENTIFICATIONNAMETASKSTEP

(f)-416T2231-1SPRINGInspect1 -4416T2231-1SPRINGInstall (Kept)2 -4BACW10P219TFTEFLON WASHERInstall (Kept)

(a)4416T2232-5SEPARATION LINK ASSY Install (New)

(b)-416T2232-5SEPARATION LINK ASSY Turn3 Install cap screw hand tight.

4NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWInstall (Kept) -4NAS1149C0432RWASHERInstall (New)4 Install nut hand tight.4BACN10YR4CMNUTInstall (New)

(c)-416T2232-5SEPARATION LINK ASSY Turn5 Torque cap screw to 15-16 in-lbs.

4NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWTorque6 Torque nut to 63 - 67 in-lbs 4BACN10YR4CMNUTTorque7

(d)-416T2232-5SEPARATION LINK ASSY Turn8

(f)-416T2231-2SPRINGInspect9 -4416T2231-2SPRINGInstall (Kept)10 -4BACW10P219TFTEFLON WASHERInstall (Kept)

(a)4416T2232-6SEPARATION LINK ASSY Install (New)

(b)-416T2232-6SEPARATION LINK ASSY Turn11 Install cap screw hand tight.

4NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWInstall (Kept) -4NAS1149C0432RWASHERInstall (New)12 Install nut hand tight.4BACN10YR4CMNUTInstall (New)

(c)-416T2232-6SEPARATION LINK ASSY Turn13 FIGURE 5: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 4 OF 5)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 23, 2007 767-25-0428Revision 3 October 21, 2010 44 of 66 BOEING SERVICE BULLETIN 767-25-0428

MORE DATAQTYIDENTIFICATIONNAMETASKSTEP Torque cap screw to 15-16 in-lbs.

4NAS1352C06-4P (NAS1352-06H4P optional) CAP SCREWTorque14 Torque nut to 63 - 67 in-lbs 4BACN10YR4CMNUTTorque15

(e)-416T2232-6SEPARATION LINK ASSY Turn16

(a) Make sure that the separation link pin and the separation link housing pin are between the tabs on the spring. Rotate the separation link assembly to verify smooth motion and that the spring is installed correctly and providing resistance.

(b) Rotate the separation link assembly until the cap screw can be installed in the smaller gap between the tabs on the separation link. The separation link should be oriented as shown on the placard beside the separation link housing.

(c) Rotate the separation link assembly to verify smooth motion and that the spring is installed correctly and providing resistance. No binding should occur.

(d) Verify that the separation link rotates CLOCKWISE against the spring torque and the separation link freely snaps back against the cap screw when released as shown in the placard beside the separation link. No bInding should occur.

(e) Verify that the separation link rotates COUNTER-CLOCKWISE against the spring torque and the separation link freely snaps back against the cap screw when released as shown in the placard beside the separation link. No binding should occur.

(f) Check unloaded spring dimensions against CMM 25-66-30, Figure 501. Check for nicks and scrapes that could cause breakage or other permanent deformation such as bent tangs. Replace spring if any damage is found.

FIGURE 5: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 5 OF 5)

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 23, 2007 767-25-0428Revision 3 October 21, 2010 45 of 66 BOEING SERVICE BULLETIN 767-25-0428

Page 46OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428 This Figure applies only to: Group 2, 4.

AFT

SERVICE DOOR > MID • AFT

SERVICE ENTRY

DOOR DOOR

FORWARD

SERVICE DOOR MID

ENTRY DOOR

FORWARD

ENTRY DOOR SEE A (6 LOCATIONS)

DEPLOYMENT BAR SEE INBD 1363221 FIGURE 6: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 1 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 46 of 66

Page 47OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428

SEPARATION LINK

HOUSING

PLACARD

SEE D)F

SEPARATION

LINK HOUSING SEE CO

PLACARD UP DINBD 1363225 FIGURE 6: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 2 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 47 of 66

Page 48OCROpen in PDF

BOEING SERVICE BULLETIN 767-25-0428

•SEPARATION LINK

HOUSING PIN

SEPARATION LINK ~ SEE HOUSING PIN SEE

(11)14

SEPARATION SEPARATION

SPRING LINK PIN LINK PIN SPRING

SEPARATION LINK

ASSEMBLY

SEPARATION LINK

ASSEMBLY The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for each airplane.

FIGURE 6: SEPARATION LINK ASSEMBLY INSTALLATION (SHEET 3 OF 5) Original Issue: August 23, 2007 Revision 3 October 21, 2010 BOEING PROPRIETARY - 767-25-0428 Copyright © Unpublished Work - See page 1 for details. 48 of 66

Pages 49–60 of 66