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 CONTROLLED 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 girt by replacing Velcro tabs with cable tunnels, modify 

the valise by incorporating an aspirator support and removing parachute spring band, replace 

the regulator valve padding, and repack the slide with a changed aspirator orientation.

B. Concurrent Requirements

(1) For slide P/N 5A3307-3, concurrent accomplishment of Goodrich Service Bulletin 5A3307-25-

339 is required. (P/N 5A3307-3 is affected by Boeing Service Bulletin 737-25-1491, which is 

mandated by FAA Airworthiness Directive (AD) 2008-24-08. 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 slide 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 accomplishment of Goodrich Service Bulletin 5A3307-25-

339 is required. (P/N 5A3307-301 is in compliance with Boeing Service Bulletin 737-25-1491 

and FAA AD 2008-24-08. However, accomplishment of Goodrich SB 5A3307-25-339 is a 

prerequisite for the final configuration requirements 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 by Goodrich Service Bulletin 25-349, prior or 

concurrent accomplishment of Goodrich Service Bulletin 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 prevent the door from fully opening and can 

prevent the slide from deploying. This condition has been experienced on right-hand aircraft 

doors only. The condition has been linked to the valise release lanyard becoming exposed from 

its intended position between the upper and lower girt plies. As an interim measure, Goodrich 

published Service Newsletter 25-203 to provide information to B737 operators regarding the 

correct routing and stowage of this lanyard. As a permanent resolution for this subject, Goodrich 

has developed a modification to the girt that replaces the Velcro tabs presently used for routing 

of the valise release lanyard with closed fabric tunnels. The tunnels will positively retain the 

valise release lanyard in the optimum routing of the lanyard.

In addition, there have been instances where the aspirator on a P/N 5A3307 series slide has 

ingested the valise during scheduled slide tests. This 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 repositioned the aspirator in the slide pack. An aspirator 

positioning pad is added to the valise to retain the aspirator in the optimum location in the slide 

pack, and a new regulator padding is installed to accommodate the revised aspirator position.

(2) Scope of Action - This Service Bulletin is a complete 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 within 

the slide pack.

E. Compliance Recommendation

Goodrich recommends compliance with this Service Bulletin 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 Federal 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 Service 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 preparation of this Service Bulletin. Maintenance 

personnel should refer to these documents when performing 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 aircraft

SB 737-25-1491 Boeing Service Bulletin (SB) B737NG aircraft

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 Instruction (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 - Modification kits and parts are available from Goodrich 

Interiors, Evacuation Systems, Phoenix, Arizona (V0ACH4) and are listed in Table 4. The basis for 

this material data is per unit. One (1) modification kit is required to modify each affected unit. Units 

with bar codes will also require two (2) bar code labels. 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 Table 6. Orders for no charge materials must 

reference this Service Bulletin and must list (by part number and serial number) the units for 

which those items are being ordered. This no charge offer expires 36 months from the original 

release date of this Service Bulletin. The labor allowance 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 maintenance materials are required. Refer to Goodrich 

Component Maintenance Manual 25-60-37 for this information (reference paragraph 1.J and Table 

3).

D. Tooling - Normal evacuation slide maintenance tooling is required. Refer to Goodrich Component 

Maintenance Manual 25-60-37 for this tooling (reference paragraph 1.J and Table 3).

3. Accomplishment Instructions

WARNING: FOLLOW ALL WARNING AND CAUTION NOTES AND PROCEDURES IN THE 

APPLICABLE GOODRICH MAINTENANCE DOCUMENTS (REFERENCE PARAGRAPH 

1.J AND TABLE 3) WHEN PERFORMING THE FOLLOWING WORK PROCEDURES.

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) 25-60-37.

B. (P/N 5A3307-3 and -301 units only) Modify the slide 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 Bulletin 

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 accordance with the CHECK section of CMM 25-60-37. 

If the girt is serviceable, proceed with step D. If the girt is unserviceable, replace the girt with a new 

girt P/N 5A3312-50 (reference Table 8) and skip step 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 240474-2 on the lower girt ply. See Figure 2 for 

installation locations. Bond the tunnels to the girt 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

L

TO 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 girt dash 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 information "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 band and the cut webbing material.

NOTE: The attachment patches are not removed from the valise 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 accordance 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.

9 1/4 IN. (5.7 CM)

(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 fabric 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 step (4).

(6) Use nylon thread (reference the REPAIR section of CMM 25-60-37) and back-stitch both sides 

of the cut out area to secure the folded edge of the 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 outside 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 the assembly hinges and engages 

the Velcro towards the inside of the valise (see Figure 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 valise dash 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 valise.

(9) Use permanent ink and mark the valise with the information "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 per scheduled maintenance tasks.

J. Mark the slide as follows.

(1) Use permanent ink to cross out the old slide dash number on the exterior of the valise and mark 

the post-Service Bulletin dash number (refer to paragraph 4 and Table 8).

(2) Use permanent ink to cross out the old slide dash numbers (both Goodrich and Boeing) on the 

system identification placard located on the girt and mark the post-Service Bulletin dash 

numbers (both Goodrich and Boeing) (refer to paragraph 4 and Table 8).

(3) Use permanent ink and mark the girt with the information "SB 25-389" to indicate compliance 

with this Service Bulletin.

K. If applicable, replace the part number bar code label 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 remain.

(4) Install a P/N 510273-1 bar code label patch (reference Table 7) at the same location as the 

patch that was removed. Bond with urethane adhesive in accordance with the REPAIR section 

of the CMM 25-60-37.

L. If applicable, replace the flap cover part number bar code label on the toe-end of the unit as follows. 

(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 existing part number bar code from the flap cover.

(2) Discard the removed label. 

(3) Use scissors and trim any loose threads that remain.

(4) Install a P/N 510273-1 bar code label patch (reference Table 7) at the same location as the label 

that was removed. Bond with urethane adhesive in accordance 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 accordance with the operator's component information 

tracking methods and system.

4. Identification

System part numbers and major sub-component part numbers are updated upon completion of these 

modifications. Table 8 provides pre- and post-modification 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 Equivalent 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)