Textron Bell 206L3 User manual

BHT-206L3-MM-1
NOTICE
The instructions set forth in this manual, as supplemented or modified by Alert Service Bulletins (ASB) or
other directions issued by Bell Helicopter Textron Inc. and Airworthiness Directives (AD) issued by the
applicable regulatory agencies, shall be strictly followed.
Maintenance Manual also applicable to 206L3+ helicopters (Increased Gross Weight kit 206-706-530
installed per BHT-206-SI-2052).
Export Classification C, ECCN EAR99
32672)),&(%2;)257:257+7(;$6
REISSUE — 27 AUGUST 1992
REVISION 24 — 25 JUNE 2019
COPYRIGHT NOTICE
COPYRIGHT
201
BELL
® HELICOPTER TEXTRON INC.
AND BELL HELICOPTER TEXTRON
CANADA LTD.
ALL RIGHTS RESERVED
MAINTENANCE MANUAL
VOLUME 1
GENERAL INFORMATION

BHT-206L3-MM-1
PN Rev. 24 25 JUN 2019
Additional copies of this publication may be obtained by contacting:
Commercial Publication Distribution Center
Bell Helicopter Textron Inc.
P. O . B o x 4 8 2
Fort Worth, Texas 76101-0482
PROPRIETARY RIGHTS NOTICE
These data are proprietary to Bell Helicopter Textron Inc. Disclosure,
reproduction, or use of these data for any purpose other than helicopter
operation or maintenance is forbidden without prior written authorization from
Bell Helicopter Textron Inc.
Export Classification C, ECCN EAR99
DESTINATION CONTROL STATEMENT
WARNING — This document contains technical data whose export is restricted
by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et. seq.) or the Export
Administration Act of 1979, as amended, Title 50, U.S.C., App. 2401 et. seq.
Violations of these export laws are subject to severe criminal penalties.
Disseminate in accordance with provisions of DoD Directive 5230.25.

BHT-206L3-MM-1
25 JUN 2019 Rev. 24 Warning
WARNING
THIS MANUAL APPLIES ONLY TO HELICOPTERS AND COMPONENTS
MAINTAINED IN ACCORDANCE WITH BELL HELICOPTER TEXTRON
(BELL) APPROVED PROCEDURES USING BELL APPROVED PARTS.
ALL INSPECTION, REPAIR AND OVERHAUL PROCEDURES PUBLISHED
BY BELL, INCLUDING PART RETIREMENT LIFE, ARE BASED SOLELY ON
THE USE OF BELL PARTS THAT HAVE BEEN MAINTAINED USING BELL
APPROVED DATA. THE DATA PUBLISHED HEREIN OR OTHERWISE
SUPPLIED BY BELL IS NOT APPLICABLE TO NON-BELL PARTS OR
PARTS THAT HAVE BEEN REPAIRED USING DATA AND/OR PROCESSES
NOT APPROVED BY BELL.
BELL IS NOT RESPONSIBLE FOR ANY PART OTHER THAN THOSE THAT
IT HAS APPROVED.
BEFORE PERFORMING ANY PROCEDURE CONTAINED IN THIS MANUAL
YOU MUST INSPECT THE AFFECTED PARTS AND RECORDS FOR
EVIDENCE OF ANY MANUFACTURE, REPAIR, REWORK OR USE OF A
PROCESS NOT APPROVED BY BELL.
IF YOU IDENTIFY OR SUSPECT THE USE OF PARTS NOT AUTHORIZED
BY BELL, EITHER REMOVE THE AFFECTED ITEM FROM THE AIRCRAFT
OR OBTAIN INSTRUCTIONS FOR CONTINUED AIRWORTHINESS FROM
THE MANUFACTURER OR THE ORGANIZATION THAT APPROVED THE
REPAIR.
Export Classification C, ECCN EAR99

BHT-206L3-MM-1
CSS Rev. 24 25 JUN 2019
CUSTOMER SUPPORT AND SERVICES
Flying smart means that no matter where you are, or what time it is, you can make a call
and get additional information, clarification, or advice on a technical or operational issue
concerning your helicopter or information contained in our Technical Publications.
Product Support Engineering (PSE) is just a phone call away and may be contacted as
follows:
For additional information on Customer Support and Services as well as Product Support
Engineering (PSE) and your local Customer Service Engineering (CSE) network, please
access http://www.bellflight.com/support-and-service/support.
Model 206, 407, or 505
Phone: [phone] or 800-363-8023 (U.S./Canada)
Fax: [phone]
E-mail: [email protected]
Model 222, 230, 427, 429, or 430
Phone: [phone] or 800-463-3036 (U.S./Canada)
Fax: [phone]
E-mail: [email protected]
Model 204, 205, 212, or 412
Phone: [phone] or 800-363-8028 (U.S./Canada)
Fax: [phone]
E-mail: [email protected]
Model 210, HUEY II, and All Bell’s Active and Surplus
Military Medium Helicopter Models
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Model OH-58, TH-67, TH-57, Both Active and Surplus
Military
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Export Classification C, ECCN EAR99

BHT-206L3-MM-1
LOG OF REVISIONS
Insert latest revision pages and dispose of superseded ones.
On a revised page, the text and/or illustration affected by the latest revision is shown by a vertical line. A revised
page with only a vertical line next to the page number indicates that text has shifted or that non-technical
correction(s) were made on that page.
Page No. Rev No. Page No. Rev No.
LOG OF PAGES
Original ........ 0 ........... 01 AUG 82
Revision....... 1 ........... 01 MAR 83
Revision....... 2 ............30 APR 83
Revision....... 3 .............16 JUL 84
Revision....... 4 ........... 07 MAR 85
Revision....... 5 ............15 APR 87
Reissue........ 0 ............ 01 JAN 90
Reissue........ 0 ........... 27 AUG 92
Revision....... 1 .............21 JUL 93
Revision....... 2 ............23 APR 01
Revision....... 3 ............15 MAY 02
Revision ...... 4............09 DEC 02
Revision ...... 5............22 DEC 03
Revision ...... 6............. 07 JUL 06
Revision ...... 7............ 30 APR 08
Revision ...... 8............ 06 APR 09
Revison ....... 9............26 MAY 09
Revision ...... 10........... 20 JUL 09
Revision ...... 11 .......... 25 SEP 09
Revision ...... 12..........30 NOV 09
Revision ...... 13.......... 04 FEB 10
Revision ...... 14.......... 30 APR 10
Revision .......15 ..........27 SEP 10
Revision .......16 .......... 25 FEB 11
Revision .......17 ..........08 APR 11
Revision .......18 ..........29 FEB 12
Revision .......19 ..........01 JUN 12
Revision .......20 .........07 NOV 12
Revision .......21 ..........07 JUN 13
Revision .......22 ......... 15 MAY 15
Revision .......23 .........23 MAR 17
Revision .......24 ..........25 JUN 19
Page No. Rev No.
VOLUME 1
Cover .......................................24
Title ..........................................24
PN ............................................24
Warning....................................24
CSS..........................................24
A – D ........................................24
Help..........................................20
Customer Feedback.................24
Helicopter Sales Notice............24
Warranty...................................24
BR ............................................24
TR ............................................24
i/ii..............................................24
Chapter 1
1/2 ............................................10
3 ...............................................19
4 – 6 .........................................10
Chapter 4
1 – 12 .......................................24
13/14 ........................................24
Chapter 5
1 – 3 .........................................22
4 – 5 .........................................16
6 ...............................................21
6A/6B....................................... 21
7............................................... 16
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25 JUN 2019 Rev. 24 A
Export Classification C, ECCN EAR99

BHT-206L3-MM-1
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VOLUME 2
Cover ....................................... 22
Title.......................................... 22
PN............................................ 21
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Chapter 12
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Chapter 18
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VOLUME 3
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PN............................................ 10
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Chapter 29
1 – 34....................................... 23
VOLUME 5
Cover ....................................... 22
Title .......................................... 22
PN............................................ 22
B Rev. 24 25 JUN 2019 Export Classification C, ECCN EAR99

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VOLUME 6
Cover .......................................22
Title.......................................... 22
PN............................................ 22
Chapter 62
1 – 42....................................... 22
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Chapter 63
1............................................... 10
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VOLUME 7
Cover ....................................... 22
Title.......................................... 23
PN............................................ 21
Chapter 64
1/2 ............................................22
3 – 12 .......................................22
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15 – 28 .....................................22
Chapter 65
1 – 3 .........................................23
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28 .............................................23
29 .............................................10
30 .............................................17
31 – 33 .....................................23
34 – 36 .....................................10
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38 – 40 .....................................23
VOLUME 8
Cover .......................................22
Title ..........................................22
PN ............................................22
Chapter 67
1 – 2 .........................................22
3/4 ............................................22
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26 ...............................................0
27 – 30 .....................................22
30A/30B ...................................22
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25 JUN 2019 Rev. 24 C
Export Classification C, ECCN EAR99

BHT-206L3-MM-1
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Title ......................................... 22
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Chapter 95
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Chapter 96
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VOLUME 11
Cover ....................................... 10
Title .......................................... 10
PN............................................ 10
Chapter 97
1 – 22......................................... 0
VOLUME 12
Cover ....................................... 22
Title .......................................... 22
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Chapter 98
1 – 2......................................... 22
3/4............................................ 22
5 – 58....................................... 22
59/60........................................ 22
D Rev. 24 25 JUN 2019 Export Classification C, ECCN EAR99

HELP
EVALUATE
LOGISTICS
PUBLICATIONS
Have you found something wrong with this manual — an
error, an inconsistency, unclear instructions, etc.? Although
we strive for accuracy and clarity, we may make errors on
occasion. If we do and you discover it, we would appreciate
your telling us about it so that we can change whatever is
incorrect or unclear. Please be as specific as possible.
Your complaint or suggestion will be acknowledged and we
will tell you what we intend to do.
You may use the enclosed Customer Feedback form, as
applicable, to inform us where we have erred.
Your assistance is sincerely appreciated.
Export Classification C, ECCN EAR99

CUSTOMER FEEDBACK
RETURN VIA FAX TO PRODUCT SUPPORT ENGINEERING [phone]
Manual Title: ___________________________________________________________
Manual Number (if assigned): _____________________________________________
Date of Issue: ___________________________________________________________
Date of Last Revision: ___________________________________________________
Section, Chapter, Paragraph Affected: ______________________________________
Your Feedback: ________________________________________________________
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Now Reads: ____________________________________________________________
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Address: _______________________________________________________________
Export Classification C, ECCN EAR99

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Export Classification C, ECCN EAR99

Export Classification C, ECCN EAR99
IMPORTANT
HELICOPTER SALES NOTICE
Please complete this form and return by mail, e-mail ([e-mail]), or fax
(817-280-6466,Attention: CPDC). This will ensure that the new owners/operators receive
updates to their BellHelicopter Textron Technical Manuals and Bulletins.
Model of Helicopter Sold or Purchased ___________________________________________
Serial and Registration Number _________________________________________________
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Name of New Operator _______________________________________________________
Future Publications to be mailed to this address:
Address ____________________________________________________________________
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Export Classification C, ECCN EAR99

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Export Classification C, ECCN EAR99

BHT-206L3-MM-1
25 JUN 2019 Rev. 24 Warranty
SPARE PARTS WARRANTY
ONE YEAR/1,000 HOURS PRORATED
WARRANTY AND REMEDY: Seller warrants each new helicopter part or helicopter part reconditioned by seller to be free from defect
in material and workmanship under normal use and service and if installed on Bell model helicopters. Seller’s sole obligation under this
warranty is limited to replacement or repair of parts which are determined to Seller’s reasonable satisfaction to have been defective
with 1,000 hours of operation or one (1) year after installation, whichever occurs first and reimbursement of reasonable freight charges.
After 200 hours of use, there will be a prorated charge to the Purchaser for replacement parts (prorating the hours of total use against
the then applicable part life or 2,000 hours, whichever is the lesser). Defective parts must be reported in writing to the Seller’s Warranty
Administration within 90 days of being found defective. Replacement of parts may be with either new or reconditioned parts, at Seller’s
election. Warranty adjustment is contingent upon the Purchaser complying with the Warranty Remedies as described in the
Commercial Warranty Information brochure and the Seller’s Warranty Administration disposition instructions for defective parts. Failure
to comply with all of the terms of this paragraph may, at Seller’s sole option, void this warranty.
NOTE: Parts, components and assemblies of all new helicopters may have been restored or reworked due to mars, blemishes, dents
or other irregularities during the manufacturing process. Such restoration and/or rework is permitted under Seller’s approved
manufacturing and engineering processes and guidelines. The restoration and/or rework so completed does not render such items
defective in material or workmanship.
THIS WARRANTY IS GIVEN AND ACCEPTED IN PLACE OF (i) ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANT ABILITY AND
FITNESS FOR A PARTICULAR PURPOSE AND (ii) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACTOR
IN TORT (DELICT), INCLUDING PRODUCT LIABILITIES BASED UPON STRICT LIABILITY, NEGLIGENCE, OR IMPLIED
WARRANTY IN LAW.
This warranty is the only warranty made by Seller. The Purchaser’s sole remedy for a breach of this warranty or any defect in a part is
the repair or replacement of helicopter parts and reimbursement of reasonable freight charges as provided herein. Seller excludes
liability, whether as a result of a breach of contract or warranty, negligence or strict product liability, for incidental or consequential
damages, including without limitation, damage to the helicopter or other property, costs and expenses resulting from required changes
or modifications to helicopter components and assemblies, changes in retirement lives and overhaul periods, local customs fees and
taxes, and costs or expenses for commercial losses or lost profits due to loss of use or grounding of helicopters or otherwise.
Seller makes no warranty and disclaims all liability in contract or in tort (delict), including, without limitation, negligence and strict tort
(delictual) liability, with respect to work performed by third parties at Purchaser’s request and with respect to engines, engine
accessories, batteries, radios, and avionics, except Seller assigns each manufacturer’s warranty to Purchaser to the extent such
manufacturer’s warranty exists and is assignable.
This warranty shall not apply to any helicopter part which has been repaired or altered outside Seller’s factory in any way so as, in
Seller’s judgment, to affect its stability, safety or reliability, or which has been subject to misuse, negligence or accident, or which has
been installed in any aircraft which has been destroyed unless that helicopter has been rebuilt by Bell. A list of destroyed aircraft is
obtainable from Bell Product Support. Repairs and alterations which use or incorporate parts and components other than genuine Bell
parts or parts approved by Bell for direct acquisition from sources other than Bell itself are not warranted by Bell, and this warranty shall
be void to the extent that such repairs and alterations, in Seller’s sole judgment, affect the stability, safety or reliability of the helicopter
or any part thereof, or damage genuine Bell or Bell-approved parts. No person, corporation or organization, including Bell Customer
Service Facilities, is authorized by Seller to assume for it any other liability in connection with the sale of its helicopters and parts.
NO STATEMENT, WHETHER WRITTEN OR ORAL, MADE BY ANY PERSON, CORPORATION OR ORGANIZATION, INCLUDING
BELL CUSTOMER SERVICE FACILITIES MAY BE TAKEN AS A WARRANTY NOR WILL IT BIND SELLER.
Seller makes no warranty and disclaims all liability with respect to components or parts damaged by, or worn due to, corrosion. Seller
makes no warranty and disclaims all liability for consumables (wear items) which are defined as items required for normal and routine
maintenance or replaced at scheduled intervals shorter than the warranty period. “Consumables” include but are not limited to engine
and hydraulic oil, oil filters, packings and o-rings, anti-corrosion and/or sealing compounds, brush plating material, nuts, bolts, washers,
screws, fluids, compounds, and standard aircraft hardware that is readily available to aircraft operators from sources other than Seller.
All legal actions based upon claims or disputes pertaining to or involving this warranty including, but not limited to, Seller’s denial of any
claim or portion thereof under this warranty, must be filed in the courts of general jurisdiction of Tarrant County, Texas or in the United
States District Court for the Northern District of Texas, Ft. Worth Division located in Ft. Worth, Tarrant County, Texas. In the event that
Purchaser files such an action in either of the court systems identified above, and a final judgment in Seller’s favor is rendered by such
court, then Purchaser shall indemnify Seller for all costs, expenses and attorneys’ fees incurred by Seller in defense of such claims. In
the event Purchaser files such a legal action in a court other than those specified, and Seller successfully obtains dismissal of that
action or transfer thereof to the above described court systems, then Purchaser shall indemnify Seller for all costs, expenses and
attorneys’ fees incurred by Seller in obtaining such dismissal or transfer.
January 2007
Export Classification C, ECCN EAR99

TC APPROVED BHT-206L3-MM-1
4-00-00
25 JUN 2019 Rev. 24 Page 1
Export Classification C, ECCN EAR99
TABLE OF CONTENTS
Paragraph Chapter/Section Page
Number Title Number Number
CHAPTER 4 — AIRWORTHINESS LIMITATIONS SCHEDULE
AIRWORTHINESS LIMITATIONS SCHEDULE
4-1 Airworthiness Limitations Schedule ............................................... 4-00-00 5
FIGURES
Figure Page
Number Title Number
4-1 Tailboom Upper Left Attachment Fitting (206-032-409-001)
— Recurring 110-Hour Inspection ...................................................................... 13
TABLES
Table Page
Number Title Number
4-1 Airworthiness Limitations Schedule .................................................................... 6
4-2 Inspection Limitations Schedule ......................................................................... 12
The Airworthiness Limitations Schedule is approved by the Minister and specifies the maintenance required by
any applicable airworthiness or operational rules unless an alternative program has been approved by the
Minister.
Chief Engineering
Aircraft Certification
Transport Canada

BHT-206L3-MM-1 TC APPROVED
4-00-00
Page 2 Rev. 24 25 JUN 2019 Export Classification C, ECCN EAR99
REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE
Original N/A N/A
Reissue N/A N/A
Reissue 27 August 1992
1N/A N/A
2N/A N/A
3N/A N/A
4 09 December 2002
5 22 December 2003
6N/A N/A
7 30 October 2007

TC APPROVED BHT-206L3-MM-1
4-00-00
25 JUN 2019 Rev. 24 Page 3
Export Classification C, ECCN EAR99
8 20 August 2008
9 26 May 2009
10 N/A N/A
11 25 September 2009
12 N/A N/A
13 N/A N/A
14 N/A N/A
15 N/A N/A
16 N/A N/A
17 8 April 2011
REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE

BHT-206L3-MM-1 TC APPROVED
4-00-00
Page 4 Rev. 24 25 JUN 2019 Export Classification C, ECCN EAR99
18 29 February 2012
19 1 June 2012
20 7 November 2012
21 N/A N/A
22 N/A N/A
23 N/A N/A
24 25 JUNE 2019
REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE