SERVICE BULLETIN

14 Mar 2013

Rev. 002, 09 Jul 2013 Page 1 of 5

4421086-35-001

The information disclosed herein was originated by and is the property of B/E Aerospace, Inc., and except for 

rights expressly granted to the U.S. Government, B/E Aerospace, Inc. reserves all patent, proprietary, design, use, 

manufacturing and reproduction rights thereto.

CREW OXYGEN DISTRIBUTION MANIFOLD 

ASSEMBLY RETROFIT

I. Planning Information

A. Effectivity

This Service Bulletin applies to all PN 4421086-101 Crew Oxygen Distribution Manifold Assemblies.

B. Concurrent Requirements

None.

C. Reason

PN 4421086-102 features a non-conductive hose for improved oxygen system safety.

D. Description

This Service Bulletin (SB) provides instructions to retrofit Crew Oxygen Distribution Manifold Assembly 

PN 4421086-101 with a new non-conductive supply hose, changing it to PN 4421086-102. 

E. Compliance

Accomplishment of this Service Bulletin is mandatory.

F. Approval

This Service Bulletin has been reviewed by Boeing and the instructions herein are certified with the

applicable FAA regulations.

G. Manpower

Assuming the Crew Oxygen Distribution Manifold Assembly is modified on the aircraft, the following is 

an estimate to accomplish the modification:

Verification: 2 minutes

Modification: 15 minutes

H. Weight and Balance
14 Mar 2013 4421086-35-001

Rev. 002, 09 Jul 2013

B/E AEROSPACE

Service Bulletin

Page 2 of 5

Not affected.

I. Electrical Load Data

None.

J. Software Accomplishment Summary

Not Applicable.

K. References

Component Maintenance Manual 35-15-01

L. Other Publications Affected

None.

II. Material Information

A. Material - Price and Availability

(1) Modification requires the following parts:

NOTE: The price of the kit is valid through 31 Dec 2013. Contact B/E Aerospace, Inc. for subsequent 

year prices.

(2) Materials may be purchased from:

B/E Aerospace, Inc.

Commercial Aircraft Products Group

10800 Pflumm Road

Lenexa, KS 66215

Tel: (913) 338-9800 

Fax: (913) 469-8419

B. Industry Support Information

Not Applicable.

QTY B/E PART NUMBER DESCRIPTION DATE 

AVAILABLE

UNIT PRICE 

(THROUGH 31 DEC 2013)

1 4441810-000 Distribution Manifold 

Assembly - Kit

09 Apr 2013 $1,526.38
B/E AEROSPACE

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14 Mar 2013

Rev. 002, 09 Jul 2013 Page 3 of 5

4421086-35-001

C. Material Necessary for Each Component

D. Re-identified Parts

E. Tooling - Price and Availability

None.

FIG.

NO.

ITEM 

NO. NEW PART NO. QTY DESCRIPTION OLD PART NO.

INSTRUCTIONS/

DISPOSITION

1 1 1 Distribution Manifold Body 4424070-000 RF

1 2 4421189-116 1* Flexible Supply Hose 4421189-016 New/Discard

1 3 632118-05 1* O-Ring 632118-05 New/Discard

1 4 4443027-000 1* Decal, DMA Kit None New

-5 4441810-000 PK Distribution Manifold 

Assembly - Kit

RF

-6 Commercially 

Available

A/R Sanford Sharpie - Model 

13801, Extra Fine Tip 

Permanent Marker

Consumable

-7 Commercially 

Available

A/R Isopropyl Alcohol Consumable

KEY: - NOT ILLUSTRATED, RF: Reference, A/R: As Required, RU: Reuse, PK: Parts Kit

 * These PNs are contained in the Distribution Manifold Assembly - Kit

FIG.

NO.

ITEM 

NO. NEW PART NO. QTY DESCRIPTION OLD PART NO. DISPOSITION

4421086-102 1 Distribution Manifold 

Assembly

4421086-101 RWK / R

KEY: - NOT ILLUSTRATED, RF: Reference, A/R: As Required, RU: Reuse

 RWK: Make the change given in this Service Bulletin.

R: The new part number is the part number after the change given in this Service Bulletin is done. This part is 

used in production.

C: You can use the existing part to replace the new or change part. If you use the existing part, you cancel the 

effect of the change give in this Service Bulletin.
B/E AEROSPACE

Service Bulletin

14 Mar 2013

Rev. 002, 09 Jul 2013 Page 4 of 5

4421086-35-001

III. Accomplishment Instructions

WARNING: OBEY ALL WARNINGS AND CAUTIONS FROM THE APPLICABLE AIRCRAFT 

MAINTENANCE MANUAL (AMM).

CAUTION: MAKE SURE WORK AREA IS FREE OF HYDROCARBON RESIDUE, OIL, AND OTHER 

PETROLEUM BASED LUBRICANTS.

A. Verification (Refer to Figure 1 for item numbers in parentheses)

(1) Check the decal (4) on the Distribution Manifold Body (1) (refer to Figure 1 for location). If the decal 

(4) shows PN 4421086-102 and SB 4421086-35-001, this SB has been accomplished and no 

further action is necessary. If the decal shows PN 4421086-101, continue with the retrofit steps in 

paragraph II.B.

B. Modification (Refer to Figure 1 for item numbers in parentheses)

(1) Remove the existing flexible supply hose (2) and the o-ring (3) from the distribution manifold (1).

(2) Remove dust caps from the new flexible supply hose (2) if applicable.

(3) Install the new flexible supply hose (2) with new o-ring (3) to the distribution manifold (1). Torque 

the new flexible supply hose (2) to 133 to 147 in-lbs (15,1 to 16,6 N•m).

(4) Inscribe on the new decal (4) (refer to Figure 1 and Figure 2 for location) the serial number from the 

existing decal and modification date (dd.mm.yyyy) using an extra fine tip permanent marker (-6) and 

allow ink to dry.

CAUTION: THE SERIAL NUMBER IS A CONTROLLED NUMBER. THE SERIAL NUMBER MUST 

BE COPIED EXACTLY AND MUST BE READABLE.

NOTE: Make sure to copy the serial number information from the old decal to the new decal before 

removing and discarding the old decal.

(5) Remove and discard the existing decal from the distribution manifold (1).

(6) Clean and prepare the area where the new decal (4) will be placed (as shown in Figure 1) with 

isopropyl alcohol (-7) and allow surface to dry.

(7) Remove the adhesive cover from the back of the new decal and put the new decal (4) on the clean 

area as shown in Figure 1.
B/E AEROSPACE

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14 Mar 2013

Rev. 002, 09 Jul 2013 Page 5 of 5

4421086-35-001

Figure 1 

Crew Oxygen Distribution Manifold Assembly

Figure 2 

Decal Close Up