This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

17438 

Vol. 74, No. 71 

Wednesday, April 15, 2009 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 23 

[Docket No. CE294; Notice No. 23–09–01– 

SC] 

Special Conditions: Cessna Aircraft 

Company, Model 525C; Single Point 

Refuel/Defuel System 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed special 

conditions. 

SUMMARY: This action proposes special 

conditions for the Cessna Model 525C 

airplane. This airplane will have a novel 

or unusual design feature(s) associated 

with a Single Point Refuel/Defuel 

system. The applicable airworthiness 

regulations do not contain adequate or 

appropriate safety standards for this 

design feature. These proposed special 

conditions contain the additional safety 

standards that the Administrator 

considers necessary to establish a level 

of safety equivalent to that established 

by the existing airworthiness standards. 

DATES: We must receive your comments 

by May 15, 2009. 

ADDRESSES: Mail two copies of your 

comments to: Federal Aviation 

Administration, Regional Counsel, 

ACE–7, Attention: Rules Docket, Docket 

No. CE294, 901 Locust, Room 506, 

Kansas City, Missouri 64106. You may 

deliver two copies to the Regional 

Counsel at the above address. Mark your 

comments: Docket No. CE294. You may 

inspect comments in the Rules Docket 

weekdays, except Federal holidays, 

between 7:30 a.m. and 4 p.m. 

FOR FURTHER INFORMATION CONTACT: 

Peter L. Rouse, Federal Aviation 

Administration, Aircraft Certification 

Service, Small Airplane Directorate, 

ACE–111, 901 Locust, Kansas City, 

Missouri, 816–329–4135, fax 816–329– 

4090. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite interested people to take 

part in this rulemaking by sending 

written comments, data, or views. The 

most helpful comments reference a 

specific portion of the special 

conditions, explain the reason for any 

recommended change, and include 

supporting data. We ask that you send 

us two copies of written comments. 

We will file in the docket all 

comments we receive, as well as a 

report summarizing each substantive 

public contact with FAA personnel 

concerning these special conditions. 

You may inspect the docket before and 

after the comment period closing date. 

If you wish to review the docket in 

person, go to the address in the 

ADDRESSES section of this preamble 

between 7:30 a.m. and 4 p.m., Monday 

through Friday, except Federal holidays. 

We will consider all comments we 

receive on or before the closing date for 

comments. We will consider comments 

filed late if it is possible to do so 

without incurring expense or delay. We 

may change these special conditions 

based on the comments we receive. 

If you want the FAA to acknowledge 

receipt of your comments on this 

proposal, include with your comments 

a pre-addressed, stamped postcard on 

which the docket number appears. We 

will stamp the date on the postcard and 

mail it back to you. 

Background 

On August 9, 2006, Cessna Aircraft 

Company applied for an amendment to 

Type Certificate Number A1WI to 

include the new model 525C (CJ4). The 

model 525C (CJ4), which is a derivative 

of the model 525B (CJ3) currently 

approved under Type Certificate 

Number A1WI, is a commuter category, 

low-winged monoplane with ‘‘T’’ tailed 

vertical and horizontal stabilizers, 

retractable tricycle type landing gear 

and twin turbofan engines mounted on 

the aircraft fuselage. The maximum 

takeoff weight is 16,650 pounds, the 

VMO/MMO is 305 KIAS/M 0.77 and 

maximum altitude is 45,000 feet. 

The model 525C fuel system will 

incorporate a Single Point Refuel/Defuel 

system. The model 525C Single Point 

Refuel/Defuel system is used to pressure 

refuel and defuel the left and right wing 

fuel tanks from a single refuel/defuel 

adapter. The system is operated by fuel 

level and positive refuel or negative 

defuel pressure. This system is similar 

in design to other 14 CFR part 25 Cessna 

Citation airplanes and uses many of the 

same components that are used in these 

other airplanes. The components for the 

model 525C refuel/defuel system 

include a refuel/defuel adapter, a 

precheck valve, various other check 

valves, a high level pilot valve, a refuel 

valve, a defuel valve, and a positive/ 

negative relief valve. Single point 

refueling is accomplished by connecting 

the refuel equipment to the refuel/ 

defuel adapter and applying positive 

pressure. Fuel is directed through a 

common manifold to each wing tank’s 

fuel shutoff (refuel) valve. Single point 

defueling is accomplished by 

connecting defuel equipment to the 

refuel/defuel adapter and applying 

negative pressure. Defueling is 

controlled by fuel level and negative 

pressure from the defuel equipment. 

The incorporation of a pressure 

defueling system was not considered 

when 14 CFR part 23 was created; thus, 

there are no applicable certification 

requirements for this novel and unusual 

design feature. Pressure defueling 

systems are more common on part 25 

airplanes, and the applicable 

certification requirements are contained 

in part 25, section 25.979(e), which 

states: ‘‘The airplane defueling system 

(not including fuel tanks and fuel tank 

vents) must withstand an ultimate load 

that is 2.0 times the load arising from 

the maximum permissible defueling 

pressure (positive or negative) at the 

airplane fueling connection.’’ With the 

pressure defueling system design 

incorporated on the model 525C it is 

necessary to apply a special condition to 

this novel and unusual design feature. 

Type Certification Basis 

Under the provisions of section 

21.101, Cessna Aircraft Company must 

show that the model 525C meets the 

applicable provisions of the regulations 

incorporated by reference in Type 

Certificate Number A1WI or the 

applicable regulations in effect on the 

date of application for the change to the 

model 525B. The regulations 

incorporated by reference in the type 

certificate are commonly referred to as 

the ‘‘original type certification basis.’’ In 

addition, the certification basis includes 

exemptions, if any; equivalent level of 

safety findings, if any; and the special 


rwilkins on PROD1PC63 with PROPOSALS
Federal Register / Vol. 74, No. 71 / Wednesday, April 15, 2009 / Proposed Rules 17439 

condition adopted by this rulemaking 

action. 

If the Administrator finds that the 

applicable airworthiness regulations in 

part 23 do not contain adequate or 

appropriate safety standards for the 

model 525C because of a novel or 

unusual design feature, special 

conditions are prescribed under the 

provisions of section 21.16. 

In addition to the applicable 

airworthiness regulations and special 

conditions, the model 525C must 

comply with the fuel vent and exhaust 

emission requirements of 14 CFR part 

34 and the noise certification 

requirements of 14 CFR part 36. 

The FAA issues special conditions, as 

appropriate, as defined in section 11.19, 

under section 11.38, and they become 

part of the type certification basis under 

section 21.101. 

Special conditions are initially 

applicable to the model for which they 

are issued. Should the type certificate 

for that model be amended later to 

include any other model that 

incorporates the same novel or unusual 

design feature, or should any other 

model already included on the same 

type certificate be modified to 

incorporate the same novel or unusual 

design feature, the special conditions 

would also apply to the other model 

under the provisions of section 21.101. 

Novel or Unusual Design Features 

The model 525C will incorporate the 

following novel or unusual design 

features: 

A single point refuel/defuel system. 

Applicability 

As discussed above, these special 

conditions are applicable to the model 

525C. Should Cessna Aircraft Company 

apply at a later date for a change to the 

type certificate to include another 

model incorporating the same novel or 

unusual design feature, the special 

conditions would apply to that model as 

well. 

Conclusion 

This action affects only certain novel 

or unusual design features on one model 

of airplane. It is not a rule of general 

applicability, and it affects only the 

applicant who applied to the FAA for 

approval of these features on the 

airplane. 

List of Subjects in 14 CFR Part 23 

Aircraft, Aviation safety, Signs and 

symbols. 

Citation 

The authority citation for these 

special conditions is as follows: 

Authority: 49 U.S.C. 106(g), 40113 and 

44701; 14 CFR 21.16 and 21.17; and 14 CFR 

11.38 and 11.19. 

The Proposed Special Conditions 

Accordingly, the Federal Aviation 

Administration (FAA) proposes the 

following special conditions as part of 

the type certification basis for Cessna 

Aircraft Company model 525C 

airplanes. 

1. SC25.979(e) 

The airplane defueling system (not 

including fuel tanks and fuel tank vents) 

must withstand an ultimate load that is 

2.0 times the load arising from the 

maximum permissible defueling 

pressure (positive or negative) at the 

airplane fueling connection. 

Issued in Kansas City, Missouri on April 8, 

2009. 

John Colomy, 

Acting Manager, Small Airplane Directorate 

Aircraft Certification Service. 

[FR Doc. E9–8583 Filed 4–14–09; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2009–0051; Airspace 

Docket No. 09–ASW–3] 

Proposed Amendment of Class E 

Airspace; Ada, OK 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Ada, OK. 

Additional controlled airspace is 

necessary to accommodate new 

Standard Instrument Approach 

Procedures (SIAPs) at Ada Municipal 

Airport, Ada, OK. This action would 

also update the geographic coordinates 

of the airport to coincide with the FAAs 

National Aeronautical Charting Office. 

The FAA is taking this action to 

enhance the safety and management of 

Instrument Flight Rules (IFR) aircraft 

operations at Ada Municipal Airport. 

DATE: Comments must be received on or 

before June 1, 2009. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 1200 

New Jersey Avenue, SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. You must 

identify the docket number FAA–2009– 

0051/Airspace Docket No. 09–ASW–3, 

at the beginning of your comments. You 

may also submit comments on the 

Internet at http://www.regulations.gov. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The 

Docket Office (telephone 1–800–647– 

5527), is on the ground floor of the 

building at the above address. 

FOR FURTHER INFORMATION CONTACT: 

Scott Enander, Central Service Center, 

Operations Support Group, Federal 

Aviation Administration, Southwest 

Region, 2601 Meacham Blvd., Fort 

Worth, TX 76193–0530; telephone: (817) 

321–7716. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers and be submitted in 

triplicate to the address listed above. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this notice must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket No. FAA–2009–0051/Airspace 

Docket No. 09–ASW–3.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded through the 

Internet at http://www.regulations.gov. 

Recently published rulemaking 

documents can also be accessed through 

the FAA’s Web page at http:// 

www.faa.gov/airports_airtraffic/ 

air_traffic/publications/ 

airspace_amendments/. 

Additionally, any person may obtain 

a copy of this notice by submitting a 

request to the Federal Aviation 

Administration (FAA), Office of Air 

Traffic Airspace Management, ATA– 

400, 800 Independence Avenue, SW., 

Washington, DC 20591, or by calling 

(202) 267–8783. Communications must 

identify both docket numbers for this 


rwilkins on PROD1PC63 with PROPOSALS