AFS-13-336-E

June 7, 2013

 Exemption No. 10369A

 Regulatory Docket No. FAA-2011-0660

Mr. Malcom Williams

Chief Pilot

Vector Disease Control International, LLC

1320 Brookwood Drive

Little Rock, AR 72202

Dear Mr. Williams:

This letter is to inform you that we have granted your petition to extend Exemption No. 

10369, as amended. It explains the basis for our decision, describes its effect, and lists the 

conditions and limitations.

The Basis for Our Decision

By letter dated April 4, 2013, you petitioned the Federal Aviation Administration (FAA) on 

behalf of Vector Disease Control International, LLC (Vector Disease Control) for an 

extension of Exemption No. 10369. That exemption from § 137.53(c)(2) of Title 14, Code of 

Federal Regulations (14 CFR) allows Vector Disease Control to conduct aerial applications of 

insecticide materials for the purpose of mosquito control without the aircraft being equipped 

with a device capable of jettisoning at least one-half of the aircraft’s maximum authorized 

load of agricultural material within 45 seconds, as required by § 137.53(c)(2) when operating 

over a congested area. The exemption would apply to the following aircraft: 

Registration Number Make/Model

N311BB Piper PA-23-250

N415CC Piper PA-23-250

N40200 Piper PA-23-250

N737WP Piper PA-23-250

N251RC Cessna 402C

In your petition, you indicate that there has been no change in the conditions and reasons 

relative to public interest and safety that were the basis for granting the original exemption.
2

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

in the Federal Register because the requested extension of the exemption would not set a 

precedent, and any delay in acting on this petition would be detrimental to Vector Disease 

Control.

Our Decision

The FAA has determined that the justification for the issuance of Exemption No.10369 

remains valid with respect to this exemption and is in the public interest. Therefore, under the 

authority provided by 49 U.S.C. 40113 and 44701, which the FAA Administrator has 

delegated to me, I grant your petition, subject to the following conditions and limitations.

Conditions and Limitations 

1. This exemption is limited to Piper PA-23-250 and Cessna 402C model aircraft

operated by Vector Disease Control International, LLC (operator). 

2. This exemption is valid only when conducting agricultural aircraft operations under 

14 CFR part 137.

3. Aircraft operated under this exemption are limited to a maximum gross weight that 

will ensure single-engine climb performance capability of at least 200-feet-per-minute 

positive rate at the prevailing density altitude.

4. Prior to each flight, the operator or pilot in command (PIC) must prepare a document

showing the weight and balance calculations and the single-engine climb performance 

for the forecast operating density altitude. The document must be retained by the 

operator for at least 30 days and presented to the Administrator upon request.

5. Each PIC of an aircraft operated under this exemption must have a total of at least 

1,200 hours of flight time as pilot, including at least 200 hours PIC time in pistonpowered multiengine aircraft, 50 hours of which must have been in part 137 

operations.

6. The operator must provide a copy of this exemption to each PIC who operates under 

the terms of this exemption.

7. A copy of the exemption must be carried on the aircraft while conducting operations 

under the terms of this exemption.

8. Prior to operating under this exemption, each PIC must have successfully completed 

flight instruction from an appropriately rated flight instructor on single-engine 

operations, performance, and handling characteristics of the Piper PA-23-250 or 

Cessna 402C model aircraft (as applicable). The instruction must be provided in each 

model of aircraft the PIC will operate under this exemption. A record of this 

instruction must be made available by the PIC upon request of the Administrator.
3

9. The operator must provide a copy of this exemption to its part 137 certificate-holding 

Flight Standards District Office.

10. This exemption is not valid for operations outside of the United States.

The Effect of Our Decision

Our decision extends the termination date of Exemption No. 10369 to September 30, 2015 

unless sooner superseded or rescinded. This letter must be attached to, and is a part of, 

Exemption No. 10369.

Sincerely,

/s/

John M. Allen

Director, Flight Standards Service