NACELLES/PYLONS - INSTALLATION OF LOCK ASSY AT LOWER LINK FITTING

INBOARD AND OUTBOARD

1. PLANNING INFORMATION

A. SB EFFECTIVITY

Aircraft affected:

MODEL SN

Embraer 190( ) and 195( ) 19000002, 19000004 thru 19000108, 19000110 thru

19000139, 19000141 thru 19000158, 19000160 thru

19000176, 19000178 thru 19000202, 19000204 thru

19000224, 19000226 thru 19000235, 19000237 thru

19000242, 19000244 thru 19000260, 19000262 thru

19000277, 19000279 thru 19000295, 19000297 thru

19000306, 19000308 thru 19000316, 19000318 thru

19000361, 19000363 thru 19000437, 19000439 thru

19000452, 19000454 thru 19000466, 19000468 thru

19000484, 19000486 thru 19000525, 19000527 thru

19000533, 19000535 thru 19000558, 19000560 thru

19000570, and 19000572 thru 19000585.

Affected component:

None.

In-production effectivity:

Embraer 190( ) and 195( ) model aircraft SN 19000485, 19000586 and on, have an

equivalent modification factory-incorporated.

B. CONCURRENT REQUIREMENTS

None.

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 1 of 17

Copyright © 2012 by Embraer S.A. All rights reserved.
C. REASON

(1) HISTORY

Instances have been reported concerning the washer and nut loose in the outer

shear pins installed on both LH and RH pylon outboard and inboard lower link

fittings.

During investigation, the washer under the retaining nut was verified loose which

could be spun freely by hand. Also the self locking nut was found with low or no

torque but with the cotter pin correctly installed on the place.

In order to prevent the nut torque loss, the washer, castle nut, and cotter pin will be

replaced with a lock washer, lock nut, and lock wire.

(2) OBJECTIVE

To replace the washers, nuts, and cotter pin attaching the pylons to the wings by a

lock washer, a lock nut, and a lock wire.

(3) EXPECTED BENEFITS

This modification is aimed to avoid nut torque loosing and subsequently loss of the

assembly redundancy.

(4) REVISION HISTORY

None.

D. DESCRIPTION

This Bulletin is divided into 02 PARTS, as follows:

PART I Installation of Lock Assy at Lower Link Fitting Inboard and Outboard LH

Applicable to: 1.A. SB EFFECTIVITY

The modification described in PART I of this bulletin consists of replacing the washer,

castle nut, and cotter pin of the inboard and outboard LH lower link fitting by a lock

washer, lock nut, and lock wire.

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 2

DATE: 27/Nov/2012

REVISION No.:

Copyright © 2012 by Embraer S.A. All rights reserved.
To do this, it is necessary to gain access to the LH pylon at zone 419 and remove skin

fairing.

PART II Installation of Lock Assy at Lower Link Fitting Inboard and Outboard RH

Applicable to: 1.A. SB EFFECTIVITY

The modification described in PART II of this bulletin consists of replacing the washer and

castle nut of the inboard and outboard RH lower link fitting by a lock washer, lock nut, and

lock wire.

To do this, it is necessary to gain access to the RH pylon at zone 429 and remove skin

fairing.

E. COMPLIANCE

(1) APPLICABLE TO PART I

Embraer recommends that PART I of this bulletin be accomplished within the next

3,000 Flight Hours (FH).

(2) APPLICABLE TO PART II

Embraer recommends that PART II of this bulletin be accomplished within the next

3,000 Flight Hours (FH).

F. APPROVAL

The technical aspects of this Service Bulletin are approved by: Agência Nacional de

Aviação Civil (ANAC).

NOTE: If any aircraft listed in the SB effectivity has a modification or repair

incorporated that is not of EMBRAER origin, and which affects the content

of this Service Bulletin, the operator will take full responsibility for obtaining

approval by a regulatory agency for any adaptation necessary before the

incorporation of this Service Bulletin.

G. ESTIMATED MANPOWER

This estimate is for direct labor only, performed by experienced personnel, and does not

include the time to plan, prepare, or inspect the work.

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 3

Copyright © 2012 by Embraer S.A. All rights reserved.
It is assumed that all the tools, parts, and other means are readily available when

necessary.

This estimate does not include the sealant, paint, or adhesive curing time.

(1) APPLICABLE TO PART I

– Access opening: 0.5 man-hours.

– Inspection: None.

– Modification: 2.0 man-hours.

– Access closure: 0.5 man-hours.

– Test: None.

(2) APPLICABLE TO PART II

– Access opening: 0.5 man-hours.

– Inspection: None.

– Modification: 2.0 man-hours.

– Access closure: 0.5 man-hours.

– Test: None.

H. WEIGHT AND BALANCE

None.

I. SOFTWARE ACCOMPLISHMENT SUMMARY

None.

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 4

DATE: 27/Nov/2012

REVISION No.:

Copyright © 2012 by Embraer S.A. All rights reserved.
J. REFERENCES

AMM 190/( ) Aircraft Maintenance Manual PART II - 20-00-00 - STANDARD

PRACTICES-AIRFRAME.

AMM 190/( ) Aircraft Maintenance Manual PART II - 54-50-22 -

NACELLES/PYLONS.

K. OTHER PUBLICATIONS AFFECTED

AIPC 190/( ) Aircraft Illustrated Parts Catalog - 54-50-00 and 54-50-02 -

NACELLES/PYLONS.

AMM 190/( ) Aircraft Maintenance Manual PART II - 54-50-23 -

NACELLES/PYLONS.

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 5

Copyright © 2012 by Embraer S.A. All rights reserved.
2. MATERIAL INFORMATION

A. MATERIAL - PRICE AND AVAILABILITY

(1) MATERIAL AVAILABLE FROM EMBRAER

The kit below required for the accomplishment of this bulletin will be available from

Embraer at no charge to the operator during a period of 24 months after the original

release date of this service bulletin.

The estimated delivery date will be provided by Embraer upon request.

When ordering, specify SB 190-54-0013 and Top Kits PN presented in Table below,

as applicable.

REF TOP KIT PN

Unit

Price

(US$)

TOP KIT EFFECTIVITY

01 BS1905400130001 538.93 1.A. SB EFFECTIVITY

02 BS1905400130002 538.94 1.A. SB EFFECTIVITY

(2) MATERIAL AVAILABLE FROM OTHER VENDORS

None.

B. INDUSTRY SUPPORT INFORMATION

None.

C. MATERIAL NECESSARY FOR EACH AIRCRAFT

When applicable, the use of alternative or similar parts in place of the one specified in the

kits is allowable, provided that these alternative or similar parts are approved by Embraer

as indicated in the related Embraer Technical Publications or through a formal Embraer

communication channel.

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 6

DATE: 27/Nov/2012

REVISION No.:

Copyright © 2012 by Embraer S.A. All rights reserved.
The necessary expendable or consumable parts presented in the AMM Tasks referred to

in this bulletin should be procured from the operator’s inventories or ordered as spares.

The complementary information, when necessary, is presented as Notes in the respective

Table.

For ordering information and Top Kit effectivity refer to section 2.A. MATERIAL - PRICE

AND AVAILABILITY of this Bulletin.

(1) TOP KITS AND KITS

Kit Summary: Top Kit Composition (Kit PN / Quantity)

Top Kit PN 191-28251-601 191-28252-601

BS1905400130001 01 -

BS1905400130002 - 01

(a)

Kit PN 191-28251-601 - Installation of Lock Assy at Inboard and Outboard LH

Lower Link Fitting

NEW PN DESCRIPTION OLD PN QTY

SUP

QTY

RQD

DISP/

Notes

191-28248-001

Outboard Lock

washer

NAS1149C1490R 01 01 3

191-28249-001 Inboard Lock washer NAS1149C1490R 01 01 3

191-28250-401 Profile ′′U′′ - 02 02 2

MS20995C32 Lock wire -

300

mm

300

mm

2

NAS1802-04-5 Screw - 05 04 2

NAS509-14C Lock nut PE22072L14 02 02 3

(b)

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 7

Copyright © 2012 by Embraer S.A. All rights reserved.
Kit PN 191-28252-601 - Installation of Lock Assy at Inboard and Outboard RH

Lower Link Fitting

NEW PN DESCRIPTION OLD PN QTY

SUP

QTY

RQD

DISP/

Notes

191-28248-002

Outboard Lock

washer

NAS1149C1490R 01 01 3

191-28249-001 Inboard Lock washer NAS1149C1490R 01 01 3

191-28250-401 Profile ′′U′′ - 02 02 2

MS20995C32 Lock wire -

300

mm

300

mm

2

NAS1802-04-5 Screw - 05 04 2

NAS509-14C Lock nut PE22072L14 02 02 3

(2) MATERIAL TO BE PROCURED

(a) Parts

None.

(b) Consumable Materials

The material below or equivalent, required for the accomplishment of this

bulletin, should be procured from the operator’s inventories or from a local

supplier.

Applicable to 1.A. SB EFFECTIVITY

NEW PN DESCRIPTION OLD PN QTY DISP/

Notes

F-925-YELLOW

TORQUE SEAL

Sealant - AR 6/ [1]

1. YellowTorque Seal (MEP 09-068) F-925

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 8

DATE: 27/Nov/2012

REVISION No.:

Copyright © 2012 by Embraer S.A. All rights reserved.
Applicable to 1.A. SB EFFECTIVITY

NEW PN DESCRIPTION OLD PN QTY DISP/

Notes

ARDROX AV-15 Corrosion Inhibiting

Compound

- AR 6/ [1]

1. Corrosion Inhibiting Compound (MEP_10-063) ARDROX AV-15

DISPOSITION: 2 = Incorporate part bearing NEW PN

3 = Replace part bearing OLD PN with part bearing

NEW PN

6 = Apply as required

QUANTITY: AR = As Required

D. MATERIAL NECESSARY FOR EACH SPARE

None.

E. REIDENTIFIED PARTS

None.

F. TOOLING - PRICE AND AVAILABILITY

Whenever required, the necessary tooling presented in the AMM Tasks referred to in this

bulletin, should be procured from the operator’s inventories or ordered as spares.

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 9

Copyright © 2012 by Embraer S.A. All rights reserved.
3. ACCOMPLISHMENT INSTRUCTIONS

NOTE: 1) Obey all of the WARNINGS and CAUTIONS included in the referenced manuals

and procedures.

2) The Manuals and other documents are referred to by acronyms or using a

simplified form. Refer to section 1.J. REFERENCES for a more complete

definition.

3) This Service Bulletin effectivity is divided into 02 PARTS. The SB PARTS are

featured to allow their independent accomplishment.

The steps below outline the general accomplishment instructions.

The detailed sequence is included in the respective figure, when necessary.

A. Make sure that the aircraft is safe for maintenance. Refer to AMM TASK 20-00-00-910-

801-A/200 - Aircraft Maintenance Safety Procedures - Standard Procedures.

B. PART I – Installation of Lock Assy at LH lower Inboard and Outboard Link Fitting

(1) Remove pylon side fairing by loosening screws. Refer to Figure 1 and AMM TASK

54-50-22-000-801-A/400 - Pylon Side Fairings - Removal.

NOTE: Skin 5 assy is applicable to outboard side.

Skin 6 assy is applicable to inboard side.

(2) Carry out the replacement of washers, nuts, and cotter pins by lock washers, lock

nuts and lock wire of lower link fittings. Refer to Figure 1.

(3) Reinstall pylon side fairings. Refer to Figure 1 and AMM TASK 54-50-22-400-801-

A/400 - Pylon Side Fairings - Installation.

C. PART II – Installation of Lock Assy at RH lower Inboard and Outboard Link Fitting

(1) Remove pylon side fairing by loosening screws. Refer to Figure 1 and AMM TASK

54-50-22-000-801-A/400 - Pylon Side Fairings - Removal.

NOTE: Skin 5 assy is applicable to outboard side.

Skin 6 assy is applicable to inboard side.

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 10

DATE: 27/Nov/2012

REVISION No.:

Copyright © 2012 by Embraer S.A. All rights reserved.
(2) Carry out the replacement of washers, nuts, and cotter pins by lock washers, lock

nuts and lock wire of lower link fittings. Refer to Figure 1.

(3) Reinstall pylon side fairings. Refer to Figure 1 and AMM TASK 54-50-22-400-801-

A/400 - Pylon Side Fairings - Installation.

D. Restore the aircraft to normal.

E. Enter the accomplishment of PART I and/or PART II of this bulletin in the applicable

documents.

NOTE: 1) Please inform us by e-mail fleet.reliability@embraer.com.br of the aircraft

manufacturer serial number and the SB incorporation date, specifying the SB

Part(s) incorporated or whether the whole SB has been incorporated. This

will enable Embraer to consider your aircraft configuration when providing

future modifications.

2) To formally inform that the SB has been incorporated fleet-wide or that the

SB will not be incorporated, so that Embraer can update the affected

technical publications, use the “Service Bulletin Full-Fleet Incorporation

Report” form, which is available on the Flyembraer portal

(http://www.flyembraer.com).

3) Use the attached “Service Bulletin Evaluation” form to send us your

comments regarding this SB. Your feedback will be much appreciated as an

aid for us to improve the quality of the SBs.

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 11

Copyright © 2012 by Embraer S.A. All rights reserved.
1. Remove lock assy at lower link outboard fitting, as follows:

(a) Remove and discard cotter pin (01 position), castle nut PN PE22072L14 (01

position), and washer PN NAS1149C1490R (01 position). Refer to Detail B

Pre-mod.

2. Install new lock assy at lower link outboard fitting, as follows:

(a) Position lock washer PN 191-28248-001 (LH) or PN 191-28248-002 (RH) (01

position) as applicable and lock nut PN NAS509-14C (01 position).

(b) Apply a toque of 1,000 lb.in at lock nut. After that, adjust the lock nut position as

indicated at Detail B Post-mod and Detail D.

NOTE: The final torque must not exceed 2,000 lb.in.

NOTE: With pressure plier fix the lock washer at pylon structure to avoid rotation,

and consequential damages, while torque is applied.

(c) Install profile ′′U′′ PN 191-28250-401 (01 position) by positioning and tightening the

screw PN NAS1802-04-5 (02 positions). Refer to Detail B Post-mod.

(d) Install lock wire PN MS20995C32. Refer to Detail B Post-mod.

(e) Apply Yellow Torque Seal (MEP 09-068) F-925 and Corrosion Inhibiting Compound (MEP_10-063) ARDROX AV-15 .

3. Remove lock assy at lower link inboard fitting, as follows:

(a) Remove and discard cotter pin (01 position), castle nut PN PE22072L14 (01

position), and washer PN NAS1149C1490R (01 position). Refer to Detail C

Pre-mod.

4. Install new lock assy at lower link inboard fitting, as follows:

(a) Position lock washer PN 191-28249-001 (01 positon) and lock nut PN NAS509-14C

(01 position).

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 12

DATE: 27/Nov/2012

REVISION No.:

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 01 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.
(b) Apply a toque of 1,000 lb.in at lock nut. After that, adjust the lock nut position as

indicated at Detail C Post-mod and Detail E.

NOTE: The final torque must not exceed 2,000 lb.in.

NOTE: With pressure plier fix the lock washer at pylon structure to avoid rotation,

and consequential damages, while torque is applied.

(c) Install profile ′′U′′ PN 191-28250-401 (01 position) by positioning and tightening the

screw PN NAS1802-04-5 (02 positions). Refer to Detail C Post-mod.

(d) Install lock wire PN MS20995C32. Refer to Detail C Post-mod.

(e) Apply Yellow Torque Seal (MEP 09-068) F-925 and Corrosion Inhibiting Compound (MEP_10-063) ARDROX AV-15 .

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 13

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 02 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.
EM170SB540197A.DGN

A

ZONES

419

429

B

A

LH PYLON SHOWN

C

LH PYLON

(REF.)

PYLON FITTINGS

(REF.)

OUTBOARD PYLON FAIRING

419ACL (SKIN 5) − LH

429AER (SKIN 5) − RH

(REF.)

INBOARD PYLON FAIRING

419ADR (SKIN 6) − LH

429ADL (SKIN 6) − RH

(REF.)

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 14

DATE: 27/Nov/2012

REVISION No.:

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 03 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.
EM170SB540198A.DGN

POST − MOD

PRE − MOD

B

B

TORQUE: 112.98 − 225.97 N.m (1000 − 2000 lb.in)

2

1

APPLY YELLOW TORQUE SEAL (MEP 09−068) F−925

3

1

1

1

CASTLE NUT

(REMOVE AND DISCARD)

WASHER

(REMOVE AND DISCARD)

COTTER PIN

(REMOVE AND DISCARD)

2

SCREW

PN NAS1802−04−5

(02 POSITIONS)

(INSTALL)

2

2

2 1 2 3

2

LOCK NUT

PN NAS509−14C

(INSTALL)

LOCK WIRE

PN MS20995C32

(INSTALL)

PROFILE "U"

PN 191−28250−401

(INSTALL)

PYLON FITTINGS

(REF.)

PYLON FITTINGS

(REF.)

LOCK WASHER

PN 191−28248−001(LH) OR

PN 191−28248−002 (RH)

(INSTALL)

APPLY CORROSION INHIBITING COMPOUND (MEP_10−063) ANDROX AV−15

D

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 15

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 04 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.
PRE − MOD

3

3

3

PYLON FITTINGS

(REF.)

TORQUE: 112.98 − 225.97 N.m (1000 − 2000 lb.in)

2

1

APPLY YELLOW TORQUE SEAL (MEP 09−068) F−925

3

PYLON FITTINGS

(REF.)

4 1 2 3

LOCK NUT

PN NAS509−14C

4 (INSTALL)

LOCK WIRE

PN MS20995C32

(INSTALL)

PROFILE "U"

PN 191−28250−401

(INSTALL)

4

LOCK WASHER

PN 191−28249−001

(INSTALL)

4

SCREW

PN NAS1802−04−5

(02 POSITIONS)

(INSTALL)

4

POST − MOD

C

C

COTTER PIN

(REMOVE AND DISCARD)

CASTLE NUT

(REMOVE AND DISCARD)

WASHER

(REMOVE AND DISCARD)

APPLY CORROSION INHIBITING COMPOUND (MEP_10−063) ANDROX AV−15

E

EM170SB540199A.DGN

SERVICE BULLETIN

SB No.: 190-54-0013

PAGE: 16

DATE: 27/Nov/2012

REVISION No.:

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 05 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.
D D

ACCEPTABLE CONDITION

30°

(REF.)

PARALLEL

22°

(REF.)

E E

ACCEPTABLE CONDITION

30°

(REF.)

PARALLEL

22°

(REF.)

EM170SB540280A.DGN

NOMINAL CONDITION

NOMINAL CONDITION

SERVICE BULLETIN

DATE: 27/Nov/2012

REVISION No.:

SB No.: 190-54-0013

PAGE: 17

FIGURE 1 - REPLACEMENT OF LOCK ASSY AT LOWER LINK FITTING

(SHEET 06 OF 06)

Copyright © 2012 by Embraer S.A. All rights reserved.

SERVICE BULLETIN EVALUATION

THE PURPOSE OF THIS FORM IS TO COLLECT DATA THAT WILL BE USED TO IMPROVE THE QUALITY OF OUR

SERVICE BULLETINS. PLEASE FILL IN FORM AND RETURN IT TO:

EMBRAER - EMPRESA BRASILEIRA DE AERONÁUTICA S.A.

EFTC - SERVICE BULLETIN ENGINEERING

AV. BRIGADEIRO FARIA LIMA, 2170

SÃO JOSÉ DOS CAMPOS - SP - 12227-901

BRASIL

Fax: + 55 12 3927-6600 (ext. 1624)

e-mail: fleet.reliability@embraer.com.br

S.B. Title: S.B.: (Number / Rev.)

Operator:

SB Implementation Report

Aircraft Serial Number or Registration Number: Incorporation Date:

Aircraft Flight Hours: Aircraft Landings:

POST-ACCOMPLISHMENT EVALUATION: (Check applicable squares below)

ESTIMATED MANPOWER: [ ] OK [ ] NOT OK (Explain Below)

MATERIAL & KITS: [ ] OK [ ] NOT OK (Explain Below)

ACCOMPLISHMENT INSTRUCTIONS: [ ] OK [ ] NOT OK (Explain Below)

FIGURES: [ ] OK [ ] NOT OK (Explain Below)

SB GENERAL EVALUATION: [ ] OK [ ] NOT OK (Explain Below)

COMMENTS: (Bulletin quality/ Difficulties found at the time of incorporation/ Suggested improvements/ Other)

Organization: Fax: Phone:

E-mail:

Address: Prepared by:(Name/Title) Date:

Copyright © 2012 by Embraer S.A. All rights reserved.