4760 Airport Road 

Cincinnati, Ohio 45226 

Phone: (513) 871-9966 

Fax: (513) 871-9261 

Certified Repair Station # E5ZR316Y 

Email: SignatureEngines@fuse.net

U.S. Department of Transportation 

Docket Operations, M-30 

West Building Ground Floor, 

Room W12-140 

1200 New Jersey Avenue, SE 

Washington, DC 20590 

RE: Request for Extension of Exemption No. 10108 

 Docket No. FAA-2010-0727 

Pursuant to §11.61(b) of Title 14 CFR, Signature Engines, Inc. (SEI) hereby request the extension of 

Exemption No. 10108 from 14 CFR §120. 225(b) and §120.17(b) under docket number FAA-2010-0727. 

SEI requests that this extension be granted for a period of two years. 

In doing so, SEI would be enabled to continue its operations to fulfill the public need with our domestic 

helicopter tours while remaining exempt from implementing separate and distinct drug and alcohol 

testing programs for our Part 135 and Part 91.147 operations. 

Enclosed please find a copy of our original petition under exemption number 10108 and docket number 

FAA-2010-0727, along with its decision. 

Sincerely, 

Steven A. Darr 

Chief Inspector 

Signature Engines, Inc. 

4760 Airport Road 

Cincinnati, Ohio 45226 

(513) 871-9966 

Enclosures 
4760 Airport Road 

Cincinnati, Ohio 45226 

Phone: (513) 871-9966 

Fax: (513) 871-9261 

Certified Repair Station # E5ZR316Y 

Email: SignatureEngines@fuse.net

U.S. Department of Transportation 

Docket Management Systems 

1200 New Jersey Avenue, SE 

West Building Ground Floor, Room W12-140 

Washington, DC 20590 

RE: Petition for Exemption Request 

Dear Sir / Madam: 

This is to seek your approval of Signature Engines, Inc. request for exemption from 14 CFR §120.117(b) 

and §120.225(b) in which our Part 91.147 operation is required to implement separate and distinct drug 

and alcohol testing programs from our Part 135 operation. We wish instead, to combine the Part 91.147 

operation’s required program with the program already established under our Part 135 operation. This 

exemption would allow us to streamline our drug and alcohol testing program, thereby eliminating 

duplication of the entire process. 

This request for exemption would not adversely affect safety since the individuals whom perform safetysensitive functions under our Part 91.147 operation are the same individuals that are under our Part 135 

operation’s established Antidrug and Alcohol Misuse Prevention Program. 

It is our sincere belief that the granting of this exemption is in the interest of the public, while providing no 

degradation to the level of safety, since it will enable us to fulfill the public need with our domestic 

helicopter tours. 

Sincerely, 

Steven A. Darr 

Chief Inspector 

Signature Engines, Inc. 

4760 Airport Road 

Cincinnati, Ohio 45226 

(513) 871-9966 
AAM-10-334-E 

Jul 29 2010 

 Exemption No. 10108 

 Regulatory Docket No. FAA-2010-0727 

Mr. Steven A. Darr 

Chief Inspector 

Signature Engines, Inc. 

4760 Airports Road 

Cincinnati, OH 45226 

Dear Mr. Darr: 

This letter is to inform you that we have granted your request for exemption. It transmits our 

decision, explains its basis, and gives you the conditions and limitations of the exemption, 

including the date it ends. 

The Basis for Our Decision 

By letter dated July 15, 2010, you petitioned the Federal Aviation Administration (FAA) on 

behalf Signature Engines, Inc. (Signature Engines), for an exemption from part 120 of 

Title 14, Code of Federal Regulations (14 CFR). That exemption, if granted, would allow 

Signature Engines, which is operating under separate parts of the regulations, to cover its 

safety-sensitive employees under one testing program. 

The FAA has determined that good cause exists for not publishing a summary of the petition 

in the Federal Register because the requested exemption would not set a precedent, and any 

delay in acting on this petition would be detrimental to Signature Engines. 

The FAA has issued a grant of exemption in circumstances similar in all material respects to 

those presented in your petition. In Grant of Exemption No. 9703 (copy enclosed), the FAA 

found that Solid Edge’s § 91.147 air tour operations were closely connected to its part 135 

operations. The FAA also found that combining the petitioner’s two testing programs into 

one would be in the public interest and would maintain an equivalent level of safety to that 
2 

provided by the current regulations. Thus, the FAA concluded it was unnecessary to burden 

the petitioner by requiring it to conduct two separate testing programs. 

Having reviewed your reasons for requesting an exemption, I find that— 

 they do not differ materially from those presented by the petitioner in the enclosed grant 

of exemption; 

 the reasons stated by the FAA for granting the enclosed exemption also apply to the 

situation you present; and 

 a grant of exemption is in the public interest. 

Our Decision 

Under the authority contained in 49 U.S.C. 40113 and 44701, which the FAA Administrator 

has delegated to me, I hereby grant Signature Engines, Inc., an exemption from part 120 to the 

extent necessary to allow Signature Engines which is operating under separate parts of the 

regulations, to cover its safety-sensitive employees under one testing program, subject to the 

conditions and limitations described below. 

Conditions and Limitations 

1. Employees of Signature Engines are subject to the drug and alcohol regulations at 

all times while conducting operations under part 135 or part 91. 

2. The drug and alcohol testing program must be implemented under the auspices of 

the Signature Engines part 135 operation, not under part 91. 

This exemption terminates on July 31, 2012, unless sooner superseded or rescinded. 

Sincerely, 

/s/ 

Dr. James R. Fraiser 

Deputy Federal Air Surgeon 

Enclosure