SERVICE BULLETIN 200

- 016

PAGE 1 OF 2 AEROSPACE COMPANY

1

- 11 YOUNAN 1 CHOME.UTSUNOMIYA TOCHIGI

JAPAN 320

- 8564 TEL 028(684)7253, FAX 028(684)7260 

# SERVICE BULLETIN

JCAB APPROVED

NO. 200-0 16 DATE April 17 , 2014 (SUPERSEDES NO. )

REV. DATE (SUPERSEDES NO. )

REASON

1. SUBJECT : Replacement of “ O ” Ring s of Brake Master Cylinder

2. AIRCRAFT AFFECTED : FA

- 200

- 160

, FA

- 200

- 180 and FA

- 200

- 180AO

3. PRIORITY : Mandatory

4. REASON : To replace the aged “ O ” ring s of the brake master cylinder due

to potential sealing failure.

5. DESCRIPTION : Replace the “ O ” ring s of the brake master cylinder per service

manual.

6. ACCOMPLISHMENT :

(1) Accomplish this service bulletin for the brake master cylinder s installed in the affected

aircraft (if equipped with the “ O ” ring that is more than 1,000 flight hours or 5 years old,

or if it is unknown when the previous replacement of the “ O ” ring s was made) w ithin 50

flight hours or 1 year after the receipt of this service bulletin , whichever occurs first.

(2) When the brake master cylinder is replaced after the rec eipt of this service bulletin

, check the date of the manufacture of the cylinder or the date of the previous

replacement of the “ O ” ring s by referring to any document with which the replacement

record can be identified

. A ccomplish the following.

a. New brake master cylinder

- If using a new brake master cylinder manufactured over 5 years ago, replace the “O”

ring s when installed on the aircraft (*)

. b. B rake master cylinder other than new ones

- If using a brake master cylinder whose “O” ring s w ere replaced over 5 years ago,

replace the “O” ring s when installed on the aircraft (*)

.

c. If it is unknown when the cylin der was manufactured or when the “ O ” ring s w ere
previously replaced, replace the “O” ring s when installed on the aircraft

.

* I f a new cylinder is less than 5 years old or a cylinder has the “ O ” ring s replaced

within 5 years, it is acceptable to install the cylinder without replacing the “ O ” ring s

. H owever its storage period (the time period from manufacture or previous “ O ” ring
replacement until installation) must be included into work life

. HEAD OFFICE ; SUBARU BLDG.

SHINJUKU, TOKYO, JAPANSERVICE BULLETIN 200

- 016

PAGE 2 OF 2 7. JCAB APPROVAL : JCAB Approval ( No

- kou

- 14

- 006 ) April 16 , 2014

8. WORK CLASSIFICATION : Tasks in this service bulletin fall under general maintenance.

9. PARTS REQUIRED : The following parts are required to accomplish this bulletin:

No. P /N NOMENCLATURE QTY/AC REMARKS

1 AN6227

- 8 or AN6227B8 “O”RING 2 A ircraft equipped with

the 0541138 brake
master cylinder

2 AN6227

- 9 or AN6227B9 “O”RING 2 A ircraft equipped with

the 200

- 584160

- 001 brake master cylinder 3 AN6227

- 4 or AN6227B 4 “O”RING 2

10. SPECIAL TOOL : None

11. WEIGHT AND BALANCE

: Not affected

12. REFERENCE : Service Manual

13. DETAILED INSTRUCTIONS:

R eplacement must be performed per Service Manual 9

- 5.

14. OTHERS: The task of this service bulletin must be recorded in the aircraft

log book with the approval by qualified mechanic s

. Service News will be published to announce the revision of the

service manual for the change of the “O” ring inspection interva l.