!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

AIRCRAFT AFFECTED:!! Eurocopter!BK117!C/1,!BK117!C/2

SUBJECT:!! One!time!inspection!of!spherical!bearings!installed!

in!tail!rotor!pitch!change!links.

SUBJECT&PART(S):!! Tail!rotor!pitch!Link,!P/N 117/31822,!117/31821!&

B642M1018101

S/N’s&AFFECTED:!! See!Appendix!1!(attached)

COMPLIANCE:!! For! affected! components! installed! within! the! last!

ten!(10)!flight!hrs,!Inspection!should!be!conducted!

before! next! flight.! ! For! all! other! affected!

components,! Inspection! should! be! conducted!

within!the!next!ten!(10)!flight!hours.
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

DESCRIPTION:

Able!Engineering!received!a!report!of a tail!rotor!pitch!link!featuring a!spherical

bearing(s) that had! migrated! out! of! the! bearing! bore.! ! Investigation! of! the!

subject!link!revealed!that!the!migration!resulted!from!the!omission of!a!proper!

swaging!operation!during!a!repair!process.!!Affected!parts!were!limited!to!those!

repaired! after! January! 1st,! 2011.! ! Review! of! the! maintenance! records! for! the!

parts!repaired!in!said!time!frame!indicate!inspection!of!additional!components!

is!necessary.

Able! Engineering! issues! this! bulletin! to! accomplish! a! one/time! inspection! of!

specific!parts!that!could!potentially!exhibit!the!same!defect.!!The!affected!parts!

are!listed!in!Appendix!1.!!Only!parts! repaired!in! the! subject! time! frame! (after!

January 1st,!2011)!are!subject!to!the!inspections.

MANPOWER:

Approximately!1.5!man/hours!is!required!to!complete!this!bulletin.

WARRANTY:

There!will!be!no!warranty!associated!with!this!bulletin.

SPECIAL&TOOLS:

None
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

REFERENCES:

Eurocopter!BK!117MM,!Rev.!40,!Dated!11/1/2011,!Chapter!2!&!Chapter!33

Eurocopter!BKK117/C/2!MM,!Rev.!12,!Dated!8/1/2011,!Chapter!2!&!Chapter!67

ACCOMPLISHMENT&INSTRUCTIONS:

Inspection!of!parts!in!appendix!1

1. Remove!affected!links!IAW!applicable!ICA

2. Apply! axial! hand! pressure to! the! faces! of! both! spherical! bearings.! ! The!

pressure!should!be!applied!perpendicular!to!the!face!of!the!bearings.

3. Using! a! magnifying! glass/loop! (of! at! least! 8X),! inspect! the! boundaries

between! the! bearing(s) and! the! bearing! bore chamfer! surface(s).! ! Ensure!

that!the!bearing(s)!have been!adequately!swaged.!!See!the!drawing!in!Figure!

1 (fully swaged)!and!Figure!2!(NOT!fully swaged) for!further!guidance.

4. Should!a!discrepant!bearing(s) be!discovered,!remove!the!link from!service!

and!return!it!to!Able!Engineering!(See!Appendix!2!for!shipping instructions)!

for!warranty!consideration.

5. Make! an! entry! in! the! helicopter! historical! records! indicating! compliance!

with!this!bulletin.

!!!
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

!!!!!!

/Figure!1/
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

!!!!!!!!!!!!!!

/ Figure!2!/
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

/ Appendix!1!/
!!!

!!!!!!!!!! !!!!!!!!!!!!!!!!!!!ALERT&SERVICE&BULLETIN

&&&&&&&&&&&&&&&&Bulletin&No.:&&2012&:001

&&&&&&&&&&&&&&&&Revision:&IR&dated&March&7th,&2012

Able!Engineering!&!Component!Services!!•!!!!2920!East!Chambers!Street!!!•!!Phoenix,!AZ!!85040

602C304C1227!Voice!!!•!!!602C304C1277!Facsimile

FAA!Repair!Station!!A1LR190N!!!•!!!EASA!Repair!Station!145.4010

Ship!discrepant components!to!Able!Engineering!for!corrective!action!and!

warranty!consideration.!!Ship!to:

Able!Engineering!&!Component!Services

Attn:!!Tony!Mitteer

2920!E.!Chambers!Street

Phoenix,!AZ!85040

USA

For!further!questions,!please!contact:

Tony!Mitteer

(602)!304/1227 Office

(602)!828/7612!Mobile

Tony.Mitteer@AbleEngineering.com

/ Appendix!2!/