Park County SherifPs Office 

1402 River View Drive Cody, WY 82414 Scott A. Steward-Sheriff 

(307)527-8700 

January 20, 2010 

William D. Holder :.-] 

Park County Sheriffs Office - Search & Rescue Dept. ' 

1131 11"" Street '"^ 

Cody, WY 82414-3536 j 

Docket Management Facility .} 

U.S. Department of Transportation ~ -; 

1200 New Jersey Avenue, SE --j 

West Building Ground Floor • ^ 

RoomW12-140 . 1 

Washington, DC 20590 

Re: Exemption from Code of Regulations Title 14 Part 23.25 Weight Limits 

To Whom It May Concern: 

I am petitioning for exemption from Code of Regulations Title 14 Part 23.25 Weight Limits. We currently operate an 

Aviat Al-B Husky aircraft used for search and rescue operations in the Park County area of Wyoming. In addition, this 

aircraft is also used to provide aerial guidance and support to ground crews, helicopter, and air ambulance helicopters 

during rescue operations. 

This aircraft is equipped with the optional 180hp Lycoming O-360-A1P engine and has demonstrated the ability to 

operate above the current weight limit of 20001bs in several different venues. The request to operate slightly above the 

weight limit of 20001bs. is a result of the necessitj' to cany a full load of fuel, survival gear, and 2 pilots (1 pilot in 

command and 1 observer). Much of the equipment we carry is survival gear, which is dropped to the ground to aid 

victims until help arrives. In addition, in order to utilize as much daylight as possible during an operation and keep the 

aircraft and its occupants safe, it is essential that v/e commence each mission with full fuel. Furthermore, reduced fuel 

equates into increased take-off and landing cycles, dramatically increasing the cost of each mission to the public. We 

have calculated the weight and balance in several configurations and have always been within the center of gravity 

envelope. As configured the aircraft always comes above the stated limit of 20001bs to 20851bs. 

I have included a list of service bulletins and information documenting the ability of the Aviat Al-B to operate above 

this weight limit. We are requesting an increased weight limit without modifications in order to comply with 

regulations and reduce financial implications to the SherifFs department. You will find in Aviat Service Bulletin No.3 

and No. 14 as well as Note 15 of Type Certificate A22NM that the aircraft can be increased to 22001bs. This would 

more than adequately cover our loading profile and I believe the safety of the flight would not be a factor. The 

requested 22001bs would be our take-off weight and the aircraft would then return to standard weight limits within 1 

hour of flight due to fuel consumption. 

Should you decide to grant the department this relief from the weight restriction of 2000 to 2200 lbs, I believe it would 

provide the public a more able search and rescue team and would benefit the department by allowing us to use the 

aircraft currently owned to its full potential. I firmly believe that safety would not be compromised by this minor 

increase. 

Thank you for your time and consideration. I look forward to hearing from you. 

Sincerely, _ / 

William D. Holder 

Search & Rescue Pilot 

307/899-1638 

Enclosure 
Park County SherifTs Office 

1402 Rhwr VMM* (M M Cody. WY 82414 Scott A. Stmrani-Sh»rifF 

(307)S2r^n)0 

The Park County Sheriffs Department is petitioning for exemption from Code of 

Regulations Title 14 Part 23.25 Weight Limits. The department currently operates 

an Aviat Al-B Husky aircraft used for search and rescue operations in the Park 

County, Wyoming area. Allowing the weight increase will provide the public a more 

able search and rescue team without compromising safety. 
DEPARTMENT OF TRANSPORTATION 

FEDERAL AVIATION ADMINISTRATION 

AUNM 

Revision 20 

A-1 

A-1A 

A-1C-180 

A-1C-200 

See (Notes Section) 

February 3, 2009 

TYPE CERTIFICATE DATA SHEET NO. A22NM 

This data sheet which is part of Type Certificate No. A22NM prescribes conditions and limitations under which the 

product for which the type certificate was issued meets the Ainworthiness requirements of the Federal Aviation 

Regulations. 

Type Certificate Holder: Sky International Inc. (See Note 11) 

672 South Washington Street 

Afton, V\/yoming 83110 

Type Certificate Ownership Record: Christen Industries transferred ownership of Type 

Certificiite A22NM to Aviat, Inc. on April 4,1991. 

Aviat, Inc. transferred ownership of Type Certificate 

A22NM to White International, LTD. on December 3,1992. 

White International, LTD. transferred ownership of Type 

Certfficsite A22NM to Sky Intemational, Inc. on January 10, 

1996. 
NOTE 13 The following main gear tires are appnaved for use on models A-1, A-1A and A-1 B: 

6.00 X 6 4-ply Type III tube 

8.00 X 6 4-ply Type III tube. 

8.50 X 6 6-ply Type III tube. 

24 X 10-6 Type III Tundra. 

26 X 10.5-6 Tundra and 8.50 x 6 tube. 

The following main gear tires are approved for use on models A-1C-180/A-1C-200 

Per applicable propeller 

PROPELLER 

HARTZELL 76" (METAL) 

Model A-1C-180 

HARTZELL 

76" (COMPOSITE) Model A1C-180 

HARTZELL 80" Model A1C-180orA-1C-200 

MT (COMPOSITE) Model A1C-180orA-1C-200 

PROPELLER NUMBER 

HC-C2YK-1BF/F7666A 

HC-C2YR-1N/N7605 

HC-C2YR-1BF/F8477-4 

MTV-15-B/205-58 

TIRE SIZE 

6.00X6 4 TO6 PLY 

8:00X64 T06 PLY 

8:50X64TO6PLY 

26X10.5X6 6 PLY 

26X13X6 

29X13X6 

31X13X6 

8:00X6 4 T06 PLY 

8:50X6 4 T06 PLY 

26X10.5X6 6 PLY 

26X13X6 

29X13X6 

31X13X6 

8:50X6 4 T06 PLY 

26 X 10.5 X 6 6 PLY 

26X13X6 

29X13X6 

31X13X8 

8:50X64 TO6 PLY 

26X10.5X6 6 PLY 

26X13X6 

29X13X6 

31X13X6 

TUBE 

600X6 TYPE III 

8:00X6 TYPE III 

8:50 X 6 TYPE III 

8:50 X 6 TYPE III 

TUBELESS 

TUBELESS 

TUBELESS 

600X6 TYPE 111 

8:00 X 6 TYPE III 

8:50 X 6 TYPE III 

8:50X6 TYPE III 

TUBELESS 

TUBELESS 

TUBELESS 

8:50X6 TYPE III 

8:50 X 6 TYPE III 

TUBELESS 

TUBELESS 

TUBELESS 

8:50X6 TYPE III 

8:50X6 TYPE III 

TUBELESS 

TUBELESS 

TUBELESS 

This note does not apply to Engine Option Group Configurations of model A-1B, 2PCLM. 

NOTE 14 Model A-1A S/N 1395 to 1429 are eligitite for increased flap speed of 80 mph if airspeed indicator P/N 

81714 is installed and Airplane Flight Manual is ujpdated to reflect 80 mph flap speed. 

i 15 Models A-1 A, and A-1 B are approved for use with Baumann Model BF- 2100 Floats installed in accordance 

with Aviat Aircraft Drawing 37600. The A-1 is float certified at 1980 pounds GW, the A-1 A is float certified at 2079 

pounds GW(1890 lbs. for A-1A land plane ••• 189 lbs. for floats),«nd the A-1B»floatewWiod 8t 2200 pourateew. 

FAA approved Flight Manual Supplement dated August 31,1998 or later for above float plane configurations is 

required. 

This note does not apply to Engine Option Group Ck>nfigurations of model A-1B, 2PCLM. 

This note does not apply to model A-1C-180/A-1O200 
Sky International Inc. 

dba/Aviat Aircraft Inc 

P.O. Box 1240 

Afton, WY 83110 USA 

Tel: 307-885-3151 

Fax: 307-885-9674 

e-mail: aviat@aviataircraft.com 

SERVICE LETTER NO. 3 

Engineering Aspects are FAA Approved 

Kits available for the Husky A-IB locreased Gross Weight to 226KLb» 

with additional propellers 

MODELS EFFECTED: S/N 2285,2288, and up 

DATE: 

REVISION: 

llJune2008 

B 

ACTIVE PAGES 

PR 

Rev 

PR 

Rev 

I 

B 

15 

B 

2 

B 

16 

B 

3 

B 

17 

B 

4 

B 

18 

B 

5 

B 

19 

B 

6 

B 

20 

B 

7 

B 

21 

B 

8 

B 

22 

B 

9 

B 

23 

B 

10 

B 

24 

B 

11 

B 

25 

B 

12 

B 

26 

B 

13 

B 

A-1 

B 

14 

B 

This document is proprietary to Sky Intemational, Inc. and may not be used or copied without permission. 
SERVICE BULLETIN No. 14 AVIAT AIRCRAFT iNC, 

DATE 

REVISION 

AIRCRAFT 

SUBJECT 

2 April 1999 

n/c 

HUSKY A-1 

P.O. Box 1240 

672 South Washington 

Afton, WY 83110 USA 

Tel: 307-890-3151 

Fax: 307-888-9974 

e-mail: aviat@aviataircraftcom 

Normal Categor]i^ Gross Weight Increase to 1910 Pounds; 

> JBMtrieted OperatioBs at 2100 Poumis Gross Wngkt 

1. EFFECTIVITY 

Engineering Data is FAA Approved 

Limited Distribution. 

Effective for: Christen Industries Inc. A-1 Husky serial numbers 1005,1019,1035, 

1069,1073 and 1119; 

Aviat Inc. A-1 Husky serial numbers 1186 and 1307. 

2. PURPOSE 

The A-1 Husky aircraft listed above are eligible for alteration (using FAA Form 337) 

to allow Normal Category standaird airworthiness operation up to a gross weight of 

1910 pounds. The same aircraft when altered are also eligible for application (using 

FAA Form 337) for operation at ^p-oss weights up to 2100 pounds for USDA predator 

control purposes. Flight at weights between 1910 and 2100 pounds requires a Special 

Airworthiness Certificate for Reslricted Operations. The requirements for the special 

airworthiness certificate include airframe modifications, increased maintenance and 

inspections and flight envelope restrictions. 

3. BACKGROUND 

Husky A-1 aircraft have previously operated under contract with the USDA 

unrestricted as public aircraft. Current legislation requires these aircraft to operate 

within the limits of their design certification, currently FAR Part 23 Normal Category 

at maximum gross of 1800 pounds. The information in this service bulletin details 

the steps necessary to prepare the aircraft for a gross weight increase for Normal 

Category Standard Airworthiness to 1910 pounds and for application for a Special 

Airworthiness Certificate for Restricted operations at gross weight up to a maximum 

of 2100 pounds. Per FAA Order 8130.2C the current A-1 type certificate and FAA 

approved information in this service bulletin along with FAA Form 337 becomes the 

equivalent of a restricted TC. Design parameters are specified by inclusion of the 

FAA approved Airplane Flight Mjmuals and Supplements for the aircraft. 

HUSKY A-1 Service Bulletin No. 14 

Page 1 of 11 
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REGISTRATION NOT TRANSFERABLE 

UNITED STATES OF AMERICA 

DEPARTMENT OF TRANSPORTATION - FEDERAL AVIATIO N ADMINISTRATIO N 

CERTIFICATE OF AIRCRAFT REGISTRATION 

AIRCRAFT SERIAL NO. 

2090 

This caillficate 

miiJt be In Ihe aircraft when operated. 

NATIONALIT Y AND , , 

~~;^!STRATION MARKS IM 335SB 

MANUFACTURER AND MANUFACTURER'S DESIGNATION OF AIRCRAFT 

AVIAT AIRCRAFT INC A-IB 

ICAO Aircraft Address Code: 50724764 

PARK COUNTY SHERIFFS OFFICE 

1131 11TH ST 

CODY W 82414-3536 

finVFRWMFWT, 

It is certified that the above described aircraft tias been entered on the register of the Federal] 

Aviation Administration, United Steles of America, In accordance with the Convention on 

International Civil Aviation dated December 7, 1944, and with the Federal Aviation Act 

of 196S, and regulations issued thereunder. 

bAYE OF ISSUE 

August 22, 2003 <^^:'^^-^^ ^ mm^Mif(!n\<^^-i^ 

This certificate Is 

issued for registration purposes only 

and Is not a certificate of title. 

The Federal Aviation Administration 

does not determine 

rights of ownership 

as between private 

persons. 

& 

U.S. Department 

of Transportatio n 

Federal Aviation 1 

^Aiinistratio M 

AC Form 8060-3(8/97) Supersedes previous editions 

OHPART... T OP TnANSPO^^^^Sn^^rR^r^,,,^ , ,o . 

NATIONALITY AND 

REGrSTRATION MARKS 

M335SB 

C T A Ur^ A r. ^ i.Jj . ''^^--rEDERAL AVIATION ADf. ^Tr 

STANDARD AIRWORTHINESS CERTIFlu 

AUTHORITY AND BASIS FOR ISSUANCE 

MANUFACTURER AND MODEL 

Aviat Aircraft 

A-IB Inc. 

3 AlfiCHAFT SERIAL 

NUMBER 

2090 

1 CATEGORY 

Normal 

This airworthiness certificafe is issue<t pursuant lo the Federal Aviation Act ot 1958 and certifies Ihal, as of the date of issuance, the 

aircraft to which issued has been inspected and found to conform lo the type cerlificale therefor, to be m condition for safe 

operation, and has been shown to meet the requirements of the applicable comprehensive and detailed airworthiness code as 

provided by Anne)( 8 to the Convention on International Civil Aviation, except as noted herein 

Exceptions NOIie 

TERMS AND CONDITIONS 

Unless sooner surrendered, suspended, revoked, or a termination dale is otherwise established by the Adminisfraror, fhis 

airworthiness certificate is effective as long as the maintenance, preventative maintenance, and afierations are performed in 

accordance with Parts 21.43. and 91 of the Federal Aviation Regulations, as appropriate, and the aircraft is registered m the United 

States 

OATE •o. .....^ ^ I OF ISSUANCE 

7-20-2000 •bert G Humbert 

DESIGNATION NUMBER 

, w ..»uisjc:j.j. [DMIR602538 DMIR602538NN M 

Any alteration, reproduction, or misuse of this certificate may be punishable by a fine not exceeding Si ,000. or imprisonment net exceeding 3 

years, or both THIS CERTIFICATE MUST 8E DISPLAYED IN THE AIRCRAFT IN ACCORDANCE WITH APPLICABLE FEDERAL AVIATION REGULATIONS 

FAA For m 8100.2 ,RJO>