Federal Register / Vol. 77, No. 121 / Friday, June 22, 2012 / Notices 37733 

telephone at (202) 833–9339, fax at (202) 

833–9434, or Web site at http:// 

www.rtca.org. 

SUPPLEMENTARY INFORMATION: Pursuant 

to section 10(a)(2) of the Federal 

Advisory Committee Act (Pub. L. 92– 

463, 5 U.S.C., App.), notice is hereby 

given for a meeting of Special 

Committee 224. The agenda will include 

the following: 

July 11, 2012 

• Welcome, Introductions, and 

Administrative Remarks. 

• Review/Approve Summary— 

Thirteenth Meeting. 

• Updates from TSA (as required). 

• Workgroup Reports. 

• Industry Solicitation Progress 

Report. 

• Time and Place of Next Meeting. 

• Any Other Business. 

• Adjourn. 

Attendance is open to the interested 

public but limited to space availability. 

With the approval of the chairman, 

members of the public may present oral 

statements at the meeting. Persons 

wishing to present statements or obtain 

information should contact the person 

listed in the FOR FURTHER INFORMATION

CONTACT section. Members of the public 

may present a written statement to the 

committee at any time. Issued in 

Washington, DC, on June 15, 2012. 

Kathy Hitt, 

Program Analyst, Business Operations 

Branch, Federal Aviation Administration. 

[FR Doc. 2012–15276 Filed 6–21–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

Third Meeting: RTCA Special 

Committee 226, Audio Systems and 

Equipment 

AGENCY: Federal Aviation 

Administration (FAA), U.S. Department 

of Transportation (DOT). 

ACTION: Meeting Notice of RTCA Special 

Committee 226, Audio Systems and 

Equipment. 

SUMMARY: The FAA is issuing this notice 

to advise the public of the third meeting 

of RTCA Special Committee 226, Audio 

Systems and Equipment. 

DATES: The meeting will be held July 

10–12, 2012, from 9 a.m.–5 p.m. 

ADDRESSES: The meeting will be held at 

RTCA, Inc., 1150 18th Street NW., Suite 

910, Washington, DC 20036. 

FOR FURTHER INFORMATION CONTACT: The 

RTCA Secretariat, 1150 18th Street NW., 

Suite 910, Washington, DC, 20036, or by 

telephone at (202) 833–9339, fax at (202) 

833–9434, or Web site at http:// 

www.rtca.org. 

SUPPLEMENTARY INFORMATION: Pursuant 

to section 10(a)(2) of the Federal 

Advisory Committee Act (Pub. L. 92– 

463, 5 U.S.C., App.), notice is hereby 

given for a meeting of Special 

Committee 226. The agenda will include 

the following: 

July 10–12, 2012 

• Welcome and Administrative 

Remarks. 

• Introductions. 

• Agenda Overview. 

• Review previous action items. 

• Assess work required and timelines 

for conclusion of committee work. 

• Solicit proposals for further changes 

to DO–214. 

• Continue discussion on the 

following: 

• Risks of usage of adaptive 

technology during test. 

• Discuss results of proposed 

committee letter(s) to invite additional. 

headsets, MIC’s and CVR manufacturers. 

• Addition of noise test requirement 

to the vibration test variable nature of 

Oxygen Mask. 

• Microphone and Hand Microphone 

performance in the marketplace. 

• Re-examine proposal to remove 

CVR Area Microphone requirements 

from standard in lieu of ED–112. 

• FAA info letter addressing use of 

Active Noise Reduction (ANR) and 

Powered ANR headsets to discuss 

concern of EMI, EMC effects on power 

leads affecting communications. 

• Sensitivity versus output power as 

they correlate with its specified ratings. 

• Continue review of DO–214 and 

draft updates/changes. 

• Review draft language for noise test 

requirement to combine with the 

vibration test. 

• Other Business. 

• Establish agenda for next meeting. 

• Adjourn. 

Attendance is open to the interested 

public but limited to space availability. 

With the approval of the chairman, 

members of the public may present oral 

statements at the meeting. Persons 

wishing to present statements or obtain 

information should contact the person 

listed in the FOR FURTHER INFORMATION

CONTACT section. Members of the public 

may present a written statement to the 

committee at any time. Issued in 

Washington, DC, on June 15, 2012. 

Kathy Hitt, 

Program Analyst, Business Operations 

Branch, Federal Aviation Administration. 

[FR Doc. 2012–15277 Filed 6–21–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

Technical Standard Order (TSO)-C68a, 

Airborne Automatic Dead Reckoning 

Computer Equipment Utilizing Aircraft 

Heading and Doppler Ground Speed 

and Drift Angle Data (for Air Carrier 

Aircraft) 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of intent to cancel 

Technical Standard Order (TSO)-C68a, 

Airborne automatic dead reckoning 

computer equipment utilizing aircraft 

heading and Doppler ground speed and 

drift angle data (for air carrier aircraft). 

SUMMARY: This notice announces the 

FAA’s intent to cancel TSO-C68a, 

Airborne automatic dead reckoning 

computer equipment utilizing aircraft 

heading and Doppler ground speed and 

drift angle data. The effect of the 

cancelled TSO–68a will result in no 

new TSO-C68a design or production 

approvals. 

DATES: Comments must be received on 

or before July 23, 2012. 

FOR FURTHER INFORMATION CONTACT: Mr. 

Albert Sayadian, AIR–130, Federal 

Aviation Administration, 470 L’Enfant 

Plaza, Suite 4102, Washington, DC 

20024. Telephone (202) 385–4652, fax 

(202) 385–4651, email to: 

albert.sayadian@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

You are invited to comment on the 

cancellation of the TSO-C68a by 

submitting written data, views, or 

arguments to the above address. 

Comments received may be examined, 

both before and after the closing date at 

the above address, weekdays except 

Federal holidays, between 8:30 a.m. and 

4:30 p.m. The Director, Aircraft 

Certification Service, will consider all 

comments received on or before the 

closing date. 

Background 

Doppler radar is a semiautomatic selfcontained dead reckoning navigation 

system (radar sensor plus computer) 

which is not continuously dependent on 

information derived from ground based 

or external aids. The system employs 

radar signals to detect and measure 

ground speed and drift angle, using the 

aircraft compass system as its 

directional reference. Doppler is less 

accurate than Inertial Navigation System 

(INS), however, and the use of an 

external reference is required for 

periodic updates if acceptable position 


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