# INTERIORS

PHOENIX, ARIZONA 85040 

# SERVICE BULLETIN
ATA SYSTEM: 25

5A3307-25-389

Page 1 of 13 Orig. - Nov 8/10 

# Subject: Equipment/Furnishings - Evacuation Systems -

TRANSMITTAL OF TECHNICAL DATA (EAR): THESE COMMODITIES, TECHNOLOGY OR SOFTWARE ARE CONTR OLLED BY THE U.S. EXPORT ADMINISTRATION REGULATIONS (EAR). DIVERSION CONTRARY TO U.S. LAW IS PROHIBITED. LICENSE EXCEPTION: NLR ECCN: 9E991 1. Planning Information A. Effectivity (1) Equipment - This Service Bulletin affects Boeing 737NG forward and aft door evacuation slides manufactured by Goodrich Corporation. The affected units are listed in Table 1.

(2) Action - For all affected units, modify the girtby replacing Velcro tabs with cable tunnels, modif y the valise by incorporating an aspirator support an d removing parachute spring band, replace the regulator valve padding, and repack the slide w ith a changed aspirator orientation. B. Concurrent Requirements (1) For slide P/N 5A3307-3, concurrent accomplishmen t of Goodrich Service Bulletin 5A3307-25- 339 is required. (P/N 5A3307-3 is affected by Boein g Service Bulletin 737-25-1491, which is mandated by FAA Airworthiness Directive (AD) 2008-2 4-08. The Service Bulletin 5A3307-25- 339 modification is approved as an alternate means of compliance (AMOC) to the slide modification provisions of Boeing Service Bulletin 737-25-1491 and AD 2008-24-08. Thus, this concurrent requirement will allow the modified slid e to meet the requirements of the Boeing Service Bulletin and the AD.) Table 1. Unit Effectivity Nomenclature Evacuation System P/N Affected Unit S/N Slide, Evacuation, Fwd/Aft Doors, LH/RH 5A3307-3 (Boeing P/N 10-61323-2002), 5A3307-5 (Boeing P/N 10-61323-2003), and 5A3307-301 (Boeing P/N 10-61323-2302) BNG0001 thru BNG14499 

# Modify Cable Routing Provisions on Girt and Aspirator Orientation in Slide Pack

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 2 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. (2) For slide P/N 5A3307-301, concurrent accomplishm ent of Goodrich Service Bulletin 5A3307-25- 339 is required. (P/N 5A3307-301 is in compliance w ith Boeing Service Bulletin 737-25-1491 and FAA AD 2008-24-08. However, accomplishment of G oodrich SB 5A3307-25-339 is a prerequisite for the final configuration requiremen ts of this Service Bulletin, and the AMOC approval of Goodrich SB 5A3307-25-339, as described above, will ensure continued compliance with the Boeing Service Bulletin and the AD.) (3) For the affected units that are also affected byGoodrich Service Bulletin 25-349, prior or concurrent accomplishment of Goodrich Service Bulle tin 25-349 is required. C. Reason (1) Description - Operators have reported instances in which the valise release lanyard on a P/N 5A3307 series slide has become caught on the slide compartment latch bracket during door opening in the emergency mode. This condition can p revent the door from fully opening and can prevent the slide from deploying. This condition ha s been experienced on right-hand aircraft doors only. The condition has been linked to the va lise release lanyard becoming exposed from its intended position between the upper and lower g irt plies. As an interim measure, Goodrich published Service Newsletter 25-203 to provide info rmation to B737 operators regarding the correct routing and stowage of this lanyard. As a p ermanent resolution for this subject, Goodrich has developed a modification to the girt that repla ces the Velcro tabs presently used for routing of the valise release lanyard with closed fabric tu nnels. The tunnels will positively retain the valise release lanyard in the optimum routing of th e lanyard. In addition, there have been instances where the as pirator on a P/N 5A3307 series slide has ingested the valise during scheduled slide tests. T his condition can result in incomplete inflation of the slide. These incidents have occurred during deployments from all door positions. As a resolution for this subject, Goodrich has repositio ned the aspirator in the slide pack. An aspirator positioning pad is added to the valise to retain th e aspirator in the optimum location in the slide pack, and a new regulator padding is installed to a ccommodate the revised aspirator position. (2) Scope of Action - This Service Bulletin is a com plete and total measure. The units listed in Table 2 incorporate these modifications at the time of manufacture and are not affected by this Service Bulletin.

D. Description This girt is modified by removing three Velcro tabs and installing two fabric tunnels. The valise is modified by removing the parachute spring band and installing an aspirator support pad. The regulator padding is replaced. The slide is packed with the aspirator in a different orientation withi n the slide pack. E. Compliance Recommendation Goodrich recommends compliance with this Service Bu lletin during the next scheduled overhaul of the affected unit. Table 2. Modification Effectivity Nomenclature Evacuation System P/N S/N Effectivity Slide, Evacuation, Fwd/Aft Doors, LH/RH 5A3307-7 (Boeing P/N 10-61323-2004) BNG14500 and subsequent

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 3 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. F. Approval This Service Bulletin has been reviewed by the Fede ral Aviation Administration (FAA) and the repairs and modifications described herein comply with the applicable Federal Aviation Regulations (FAR's) and are FAA approved. G. Manpower Goodrich estimates that accomplishment of this Serv ice Bulletin will increase normal slide overhaul manpower requirements by approximately 2.0 hours. H. Weight and Balance Not affected. I. Reference The following documents were used in the preparatio n of this Service Bulletin. Maintenance personnel should refer to these documents when perf orming these actions. Always use the latest issue of the applicable reference publication.

J. Publications Affected Goodrich Component Maintenance Manual 25-60-37 will require revision as a result of this Service Bulletin. Table 3. Reference Publications Document Description Application AD 2008-24-08 FAA Airworthiness Directive B737NG airc raft SB 737-25-1491 Boeing Service Bulletin (SB) B737NG ai rcraft SB 5A3307-25-339 Goodrich SB Slide, P/N 5A3307 series SB 25-349 Goodrich SB Regulator Valve used on P/N 5A3307 series (and other slide

models) SNL 25-203 Goodrich Service Newsletter (SNL) B737 Classic and New Generation Slides 25-60-37 Goodrich Component Maintenance Manual (CMM) Slide, P/N 5A3307 series 501635, Revision J or later Goodrich Packing Instruc tion (PI) Slide, P/N 5A3307 series

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 4 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. 2. Material Information A. Material - Price and Availability Modification Kits and Replacement Parts - Modificat ion kits and parts are available from Goodrich Interiors, Evacuation Systems, Phoenix, Arizona (V0 ACH4) and are listed in Table 4. The basis for this material data is per unit. One (1) modificatio n kit is required to modify each affected unit. Un its with bar codes will also require two (2) bar code l abels. Parts breakdown for the modification kit is provided in Table 5.

NOTE: (For Table 4): *Price listed is 2010 catalog price. In addition, refer to paragraph 2.B,

Industry Support Information.

B. Industry Support Information - (1) Unit Warranty Coverage -- P/N 490412-1 kits and P/N 510273-1 bar code labels, if applicable, will be supplied at no charge (one (1) P/N 490412-1 kit and two (2) P/N 510273-1 labels per slide) for units that were covered by the original factory warranty as of December 2008. Units eligible for no charge materials are listed in Tabl e 6. Orders for no charge materials must reference this Service Bulletin and must list (by p art number and serial number) the units for which those items are being ordered. This no charg e offer expires 36 months from the original release date of this Service Bulletin. The labor al lowance for units with warranty coverage is 2.0 hours. Table 4. Material Data P/N Qty

Per Unit Price* Nomenclature Instruction/Disposition

490412-1 1 $190.00 Kit, Modification, SB 25-389 Use to modify 5A3307 slide; normal

overhaul parts are not included in kit. 510273-1 2 $33.00 Label, Bar Code, 5A3307-7 Used on slide S/N’s BNG14500 and subsequent.

Table 5. Modification Kit Parts Breakdown P/N Nomenclature Qty 490412-1 Kit, Modification, SB 25-389 X 240474-1 Tunnel, Cable, Girt 1 240474-2 Tunnel, Cable, Girt 1 240498-1 Support, Aspirator 1 490412-2 Patch, Reinforcement 1 3A4047-13 Padding, Regulator 1

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 5 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. C. Other Materials - Normal evacuation slide mainten ance materials are required. Refer to Goodrich Component Maintenance Manual 25-60-37 for this info rmation (reference paragraph 1.J and Table 3). D. Tooling - Normal evacuation slide maintenance too ling is required. Refer to Goodrich Component Maintenance Manual 25-60-37 for this tooling (refer ence paragraph 1.J and Table 3).
3. Accomplishment Instructions WARNING: FOLLOW ALL WARNING AND CAUTION NOTES AND PROCEDURES IN THE

APPLICABLE GOODRICH MAINTENANCE DOCUMENTS (REFERENC E PARAGRAPH 1.J AND TABLE 3) WHEN PERFORMING THE FOLLOWING WORKPROCEDURES. NOTE: The following work procedures assume that the unit has been removed from the aircraft and

moved to the workshop. A. If not previously accomplished, unpack the slide in accordance with the DISASSEMBLY section of Goodrich Component Maintenance Manual (CMM) 25-60-3 7. B. (P/N 5A3307-3 and -301 units only) Modify the sli de in accordance with Service Bulletin 5A3307-25- 339 with the exception that the slide repack can be delayed until the appropriate time as specified in the following steps of this Service Bulletin. C. (All affected units as listed in Service Bulletin 25-349) Verify accomplishment of the Service Bulle tin 25-349 modification. If not previously accomplished , perform the Service Bulletin 25-349 modification. D. Remove the girt from the slide in accordance with the DISASSEMBLY section of CMM 25-60-37. E. Check the girt for continued serviceability in ac cordance with the CHECK section of CMM 25-60-37. If the girt is serviceable, proceed with step D. Ifthe girt is unserviceable, replace the girt with anew girt P/N 5A3312-50 (reference Table 8) and skip ste p D. F. Modify the girt as follows. (1) Separate the upper and the lower girt plies (2) Carefully cut the stitches and remove the three (3) Velcro hook tabs and three (3) Velcro pile tabs. (See Figure 1.) Discard the Velcro tabs.

Table 6. Units Eligible for No Charge Modification Parts Evacuation Slide Model Unit S/N’s with Warranty Coverage under SB 5A3307-25-389 5A3307 Series BNG6136 thru BNG14499

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 6 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. Figure 1. Girt Velcro Tabs to be Removed VELCRO TABS TOP GIRT PLY (FOLDED BACK)

VELCRO TABS LOWER GIRT PLY

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 7 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE.

(3) Install Girt Cable Tunnel P/N's 240474-1 and 240 474-2 on the lower girt ply. See Figure 2 for installation locations. Bond the tunnels to the gi rt using urethane adhesive in accordance with the REPAIR section of Goodrich CMM 25-60-37.

Figure 2. Girt Cable Tunnel Installation TOP PLY GROMMET LOWER PLY GROMMET

P/N 240474-2 CABLE TUNNEL 1 3/8 IN.



### (3.5 cm) 3/4 IN.

(2.1 cm) P/N 240474-1

CABLE TUNNEL TOP GIRT PLY LOWER GIRT PLY

VELCRO STRIP

P U L LTO INFLATE

1 3/8 IN. 

### (3.5 cm)

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 8 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. (4) Use permanent ink to cross out the original girtdash number and mark the post-Service Bulletin dash number (refer to paragraph 4 and Table 8). NOTE: The part number is marked on the inside of the girt

. (5) Use permanent ink and mark the girt with the inf ormation "SB 25-389" near the girt part number. G. Modify the valise as follows. (1) Remove the parachute spring band by cutting the webbing loops at the attachment patches on both ends of the spring band. Discard the spring ba nd and the cut webbing material. NOTE: The attachment patches are not removed from the val ise fabric panel. (2) Measure and mark the inside of the valise fabric panel with the location where P/N 490412-2 Reinforcement Patch will be installed. See Figure 3 for location and orientation. (3) Install P/N 490412-2 Reinforcement Patch on the inside of the valise at the location marked per step (2). Bond with urethane adhesive in accordanc e with the REPAIR section of the CMM 25- 60-37.

Figure 3. Valise Reinforcement Installation GROMMET STRAP PATCH SPRING BAND PATCH INSIDE (SILVER) SURFACE OF VALISE

P/N 490412-2 REINFORCEMENT PATCH (SILVER SIDE)

2 1/4 IN. (5.7 CM) 9 1/4 IN. (23.5 CM)

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 9 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE.

(4) Measure and mark on the inside of the valise fab ric panel the section that will need to be removed. See Figure 4 for location and dimensions. (5) Use scissors and cut out the section marked in s tep (4). (6) Use nylon thread (reference the REPAIR section o f CMM 25-60-37) and back-stitch both sides of the cut out area to secure the folded edge of th e valise.

Figure 4. Valise Panel Modifications GROMMET STRAP PATCH SPRING BAND PATCH INSIDE (SILVER) SURFACE OF VALISE

P/N 490412-2 REINFORCEMENT PATCH (SILVER SIDE)

1 1/4 IN. (3.2 CM)

10 1/4 IN. (26 CM) CUT AND

REMOVE

4 1/4 IN. (10.8 CM) BACKSTITCH

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 10 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. (7) Install P/N 240498-1 Aspirator Support to the o utside of the valise as shown in Figure 5. Stitch in accordance with the REPAIR section of CMM 25-60- 37. NOTE: The aspirator support is to be positioned so that t he assembly hinges and engages

the Velcro towards the inside of the valise (see Fi gure 5, Section A-A).

Figure 5. Aspirator Support Installation P/N 240498-1 ASPIRATOR SUPPORT 

### 1/4 IN. DOUBLE STITCH OUTSIDE (YELLOW) SURFACE OF VALISE SAFETY PIN

POCKET



### GROMMET STRAP PATCH

2 1/4 IN. (5.7 CM)

A A

2 1/4 IN.

(5.7 CM) 

### SECTION A-A ROTATED 90 DEGREES CLOCKWISE P/N 240498-1 ASPIRATOR SUPPORT

1/4 IN. DOUBLE STITCH

OUTSIDE (YELLOW) SURFACE OF VALISE

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 11 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE.

(8) Use permanent ink to cross out the original vali se dash number and mark the post-Service Bulletin dash number (refer to paragraph 4 and Tabl e 8). NOTE: The part number is marked on the inside of the vali se. (9) Use permanent ink and mark the valise with the i nformation "SB 25-389" near the girt part number. H. Remove and discard regulator padding P/N 3A4047-1 . Replace with regulator padding P/N 3A4047-13. I. Complete other required maintenance activities pe r scheduled maintenance tasks. J. Mark the slide as follows. (1) Use permanent ink to cross out the old slide das h number on the exterior of the valise and mark the post-Service Bulletin dash number (refer to par agraph 4 and Table 8). (2) Use permanent ink to cross out the old slide das h numbers (both Goodrich and Boeing) on the system identification placard located on the girt a nd mark the post-Service Bulletin dash numbers (both Goodrich and Boeing) (refer to paragr aph 4 and Table 8). (3) Use permanent ink and mark the girt with the inf ormation "SB 25-389" to indicate compliance with this Service Bulletin. K. If applicable, replace the part number bar code l abel on the girt as follows. (See Figure 6).

Figure 6. Girt Part Number Bar Code Label PNR XXXXXXX-XXX



### P/N 510273-1 P/N 510273-1 PNR XXXXXXX-XXX PNR XXXXXXX-XXX 

## TO INFLATE PNR XXXXXXX-XXX

CUT STITCHES AND REMOVE PART NUMBER BAR CODE LABEL ONLY.

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 12 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE. (1) Carefully cut the stitches and remove the white portion of existing part number bar code patch. (2) Discard the removed label. (3) Use scissors and trim any loose threads that rem ain. (4) Install a P/N 510273-1 bar code label patch (ref erence Table 7) at the same location as the patch that was removed. Bond with urethane adhesiv e in accordance with the REPAIR section of the CMM 25-60-37. L. If applicable, replace the flap cover part numberbar code label on the toe-end of the unit as follo ws. (See Figure 7).

Figure 7. Part Number Bar Code Label on Inflatable FLAP COVER P/N 3A4161-1 (CONTAINS BAR CODE LABELS) CUT STITCHES AND REMOVE PART NUMBER BAR CODE LABEL ONLY. PNR XXXXXXX-XXX



### P/N 3A4161-1 BAR CODE INFORMATION IMFR OACH4

SER XXXXXXX

# Goodrich SERVICE BULLETIN



# 5A3307-25-389 Page 13 of 13 Orig. - Nov 8/10

THIS DOCUMENT SUBJECT TO THE CONTROLS AND RESTRICTIONS ON THE FIRST PAGE.

(1) Carefully cut the stitches and remove the existi ng part number bar code from the flap cover. (2) Discard the removed label. (3) Use scissors and trim any loose threads that rem ain. (4) Install a P/N 510273-1 bar code label patch (ref erence Table 7) at the same location as the label that was removed. Bond with urethane adhesive in a ccordance with the REPAIR section of the CMM 25-60-37.

M. Pack the unit in accordance with Goodrich Packing Instructions 501635, Revision J or subsequent. N. Record Service Bulletin compliance on the system information card (located in the pocket on the girt), or record Service Bulletin compliance in acc ordance with the operator's component information tracking methods and system. 4. Identification System part numbers and major sub-component part nu mbers are updated upon completion of these modifications. Table 8 provides pre- and post-modi fication part number information.

NOTE: *Slide assembly part numbers are not marked on the unite and are listed for reference

information only. Table 7. Applicable Bar Code Label Information Pre-Modification Evacuation System Part Number Revised Evacuation System Part Number Applicable Part Number Bar Code Label 5A3307-3, -5, or -301 5A3307-7 510273-1

Table 8. Part Number Information Description Pre-SB Part Number Post-SB Part Number Equ ivalent New Production Item Girt Assembly 5A3312-1 5A3312-50 5A3312-50 Valise Assembly 4A3899-34 4A3899-40 4A3899-40 Slide Assembly* 5A3306-1 5A3306-4 5A3306-4 Slide Assembly* 5A3306-3 5A3306-4 5A3306-4 Slide Assembly* 5A3306-301 5A3306-4 5A3306-4 Slide, Fwd/Aft 5A3307-3

(Boeing P/N 10-61323-2002) 5A3307-7 (Boeing P/N 10-61323-2004) 5A3307-7 (Boeing P/N 10-61323-2004) Slide, Fwd/Aft 5A3307-5

(Boeing P/N 10-61323-2003) 5A3307-7 (Boeing P/N 10-61323-2004) 5A3307-7 (Boeing P/N 10-61323-2004) Slide, Fwd/Aft 5A3307-301

(Boeing P/N 10-61323-2302) 5A3307-7 (Boeing P/N 10-61323-2004) 5A3307-7 (Boeing P/N 10-61323-2004)