### 28668 Federal Register / Vol. 77, No. 94 / Tuesday, May 15, 2012 / Notices

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**Technical Standard Order (TSO)–C91a, Emergency Locator Transmitters**  **(ELTs)**

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Notice of cancellation of Technical Standard Order (TSO)–C91a, Emergency Locator Transmitter (ELT) Equipment.

**SUMMARY :**  This notice announces the FAA’s cancellation of TSO–C91a, Emergency Locator Transmitter (ELT) Equipment. The effect of the cancelled
TSO will result in no new TSO–C91a design or production approvals being issued. Applicants wanting to apply for TSO Authorization (TSOA) for new Emergency Locator Transmitters (ELTs) after December 1, 2012, must seek authorization for TSO–C126a, 406 MHz Emergency Locator Transmitter (ELT), or subsequent.

**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 :** 
Background

On February 1, 2009 Cospas-Sarsat satellite system stopped processing signals from 121.5 MHz ELTs and now only processes signals from 406 MHz
ELTs. The decision to discontinue processing of the 121.5 MHz signal was made by the International Cospas-Sarsat program with guidance from the United
Nations. This was made due to the problems within the 121.5 MHz frequency band which inundated SAR authorities with reports of poor accuracy and numerous false alerts, thus impacting the effectiveness of lifesaving

services.

The 406 MHz ELT technology is an
advance over the older 121.5 MHz ELT technology. TSO–C126a ELT equipment
is more accurate and reliable than the 121.5 MHz ELT equipment. Examples of these improvements are: (1) Global satellite coverage; (2) a unique beacon identification which is required to be registered so that if an alert is activated
the rescue coordination center can confirm whether the distress is real, who they are looking for, and where the search should begin; (3) 406 MHz ELTs can be received by geostationary satellites which are always visible and provide instantaneous alerting, and (4) increased position accuracy which
reduces the search area to less than two nautical miles in radius. Additionally, 406 MHz ELTs can optionally include a GPS position which can potentially
reduce the search area to within 100
meters of the accident site.

The performance and benefits of TSO–C126a equipment surpasses TSO– C91a equipment. The 406 MHz technology is mature and prevalent in the ELT market today. New TSO
authorizations for ELTs should be accomplished to TSO–C126a, or subsequent, thus the FAA is canceling

TSO–C91a.

Comments

On January 11, 2012, a notice was published in the Federal Register which requested comments on the cancellation of TSO–C91a (77 FR 1779).

The FAA received comments from four organizations in response to the Federal Register Notice. Comments
from Cobham Beacon Products were comprised of several questions. The first question regarded permissibility of minor and major changes to existing TSO–C91a designs. In response, minor changes to an existing TSO–C91a ELT design will still be allowed in
accordance with Title 14 of the Code of Federal Regulation (14 CFR) 21.611(a), however, after December 1, 2012, a major change that is extensive enough to require issuance of a new ELT TSO
authorization will have to meet the minimum performance standards
contained in TSO–C126a. Cobham’s second question requested clarification on repair and overhaul of TSO–C91a ELTs. The FAA clarifies that repair and
overhaul of TSO–C91a articles will continue to be permissible. Cobham’s third question involved permissibility of
continued installation of TSO–C91a
ELTs. The FAA reiterates that articles with previous TSO–C91a authorizations may still be produced, sold, and installed. Cobham also inquired if the FAA will update 14 CFR § 91.207 to exclude TSO–C91a equipment if the
Federal Communication Commission (FCC) changes the rules governing the 121.5 MHz frequency. The FAA can not comment on future FCC actions,
however at this time the FAA has no plans to revise 14 CFR 91.207.

The second commenter, Astronics DME Corporation, provided two comments. First, Astronics commented
that cancellation of TSO–C91a eliminates procedural access to the TSO requirements of 14 CFR 21, Subpart O when a major change to the TSO’s article is required. Under 14 CFR Part 21, a major change requires the TSO authorization holder to apply for a new TSO authorization utilizing the latest revision of the TSO. Major changes to TSO–C91a articles will be accepted when applied for utilizing the latest
revision of TSO–C126.

Astronics also commented that
elimination of satellite detection on the 121.5 MHz frequency is not sufficient justification for TSO–C91a cancellation. The FAA acknowledges that the 121.5 MHz ELT signal is still monitored in many cases and provides limited search and rescue functionality. However, TSO–C126a is a more mature standard, and the 406 MHz signal provides satellite detection, which enhances
search and rescue efforts. Because the 121.5 MHz ELT continues to provide this basic functionality, the TSO–C91a
ELTs can continue to be used to meet 14 CFR § 91.207, however because a more mature standard is available, it is appropriate to require new ELTs designs to meet the standards of TSO–C126a, or subsequent.

Astronics also commented that the TSO–C126a requirement to include a 121.5 MHz homing beacon in the 406
MHz ELT should be modified to allow
manufacturers to include a GPS locator instead of the 121.5 homing beacon. The FAA acknowledges the benefits of including GPS position with the 406 MHz ELT transmission, and encourages this optional capability. However, this action is canceling TSO–C91a, and is not modifying TSO–C126a.

The General Aviation Manufacturers Association (GAMA) and the Aircraft Owners and Pilots Association (AOPA) both provided comments that they do not oppose the TSO–C91a cancelation, but that they would oppose any future retrofit requirement. Both organizations requested the FAA reiterate that
cancelation of TSO–C91a does not impact the continued production of articles with an existing TSO authorization nor impact the sale, installation, or the use of 121.5 MHz ELTs to comply with 14 CFR 91.207.

The General Aviation Manufacturers Association (GAMA) also conducted a survey of the manufacturers of general
aviation aircraft and determined that all current production airplanes include dual or tri-band ELTs. Additionally,
these dual or tri-band ELTs have been installed in new production airplanes for over the past 5-years.

The FAA reiterates in this final notice
that cancelation of TSO–C91a does not affect production under an existing TSO authorization. Articles produced under an existing TSO–C91a authorization can still be installed according to existing airworthiness approvals and applications for new installation approvals will still be processed. This


### 28669 Federal Register / Vol. 77, No. 94 / Tuesday, May 15, 2012 / Notices

action does not impact operation of TSO–C91a ELTs, and these ELTs will continue to satisfy the 14 CFR 91.207 ELT equipage requirement.

GAMA also commented that the FAA should reconsider the ELT operational mandate as newer technology, such as ADS–B, becomes more commonplace.
The FAA has determined that the ADS– B system currently cannot replace the ELT function. The ADS–B system is not required to be crashworthy and, thus, may not be operable or able to transmit following an aircraft accident. Additionally, current search-and-rescue technology is not compatible with ADS– B operations because ELTs broadcast on 121.5 or 406 MHz (not 1090 or 978 MHz). The FAA recognizes the value of a ground application that could allow for timely and accurate flight tracking of downed aircraft and is evaluating this capability separate from this action.

Conclusion

TSO–C91a is canceled effective December 1, 2012. Manufacturers applying for new ELT technical
standard order authorizations after December 1, 2012 must use TSO–C126a, or a subsequent ELT technical standard
order.

Issued in Washington, DC, on May 9, 2012.
Susan J.M. Cabler, Assistant Manager, Aircraft Engineering Division, Aircraft Certification Service.

[FR Doc. 2012–11678 Filed 5–14–12; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Pipeline and Hazardous Materials Safety Administration** 

**[Docket No. PHMSA–2012–0086]**

**Pipeline Safety: Information Collection Activities, Excess Flow Valve Census** 

**AGENCY :**  Pipeline and Hazardous Materials Safety Administration (PHMSA), DOT.

**ACTION :**  Notice and request for

comments.

**SUMMARY :**  In accordance with the Paperwork Reduction Act of 1995,

PHMSA invites comments on a new one-time Information Collection (IC) on Excess Flow Valves (EFVs). PHMSA will request approval for this new
information collection from the Office and Management and Budget (OMB). The collection involves a census of gas operators to gather data on operators’ experiences, practices, benefits, and
costs associated with the use of EFVs.This data is necessary to conduct a costbenefit analysis of requiring an expansion in the use of EFVs.

**DATES :**  Interested persons are invited to submit comments on or before July 16,

2012.

**ADDRESSES :**  Comments may be submitted in the following ways:

E-Gov Web Site: http:// www.regulations.gov. This site allows the public to enter comments on any Federal Register notice issued by any

agency.

Fax: 1–202–493–2251.
Mail: Docket Management Facility; U.S. DOT, 1200 New Jersey Avenue SE., West Building, Room W12–140, Washington, DC 20590–0001.

Hand Delivery: Room W12–140 on the ground level of the West Building, 1200 New Jersey Avenue SE., Washington, DC, between 9:00 a.m. and 5:00 p.m., Monday through Friday, except Federal holidays.

Instructions: Identify the docket number, PHMSA–2012–0086, at the beginning of your comments. Note that all comments received will be posted without change to http:// www.regulations.gov, including any personal information provided. You should know that anyone is able to
search the electronic form of all comments received into any of our dockets by the name of the individual submitting the comment (or signing the comment, if submitted on behalf of an association, business, labor union, etc.). Therefore, you may want to review DOT’s complete Privacy Act Statement
in the Federal Register published on April 11, 2000 (65 FR 19477) or visit http://www.regulations.gov before submitting any such comments.

Docket: For access to the docket or to read background documents or comments, go to http:// www.regulations.gov at any time or to Room W12–140 on the ground level of the West Building, 1200 New Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. If you wish to receive confirmation of receipt of your written comments, please include a self-addressed, stamped postcard with the following statement:

‘‘Comments on PHMSA–2012–0086.’’ The Docket Clerk will date stamp the postcard prior to returning it to you via
the U.S. mail. Please note that due to delays in the delivery of U.S. mail to Federal offices in Washington, DC, we recommend that persons consider an alternative method (internet, fax, or professional delivery service) of submitting comments to the docket and ensuring their timely receipt at DOT. **FOR FURTHER INFORMATION CONTACT :**  Cameron Satterthwaite by telephone at 202–366–1319, by fax at 202–366–4566, or by mail at U.S. DOT, PHMSA, 1200 New Jersey Avenue SE., PHP–30, Washington, DC 20590–0001.

**SUPPLEMENTARY INFORMATION :**  Section 1320.8(d), Title 5, Code of Federal Regulations requires PHMSA to provide interested members of the public and affected agencies an opportunity to
comment on information collection and recordkeeping requests. This notice
identifies a new one-time information collection request that PHMSA will be submitting to OMB for approval. The
information collection will be titled:
‘‘Information Collection on Excess Flow
Valves.’’

In 1996, PHMSA’s predecessor agency, the Research and Special Programs Administration (RSPA), issued a final rule adopting a performance standard for the use ofexcess flow valves (EFVs) in singlefamily-residence service lines (61 FR 31449; codified at 49 CFR 192.381). That standard only applied to the EFVs voluntarily installed on service lines that operated at pressures at or above 10 pounds per square inch gas (psig) on a continuous basis throughout the year.

In 2001, the National Transportation Safety Board (NTSB) issued Safety
Recommendation P–01–2 to RSPA. This recommendation, which was based on the results of NTSB’s investigation into a 1998 natural pipeline accident that occurred in South Riding, Virginia, advised RSPA to require the installation of EFVs in all new and renewed gas service lines, regardless of a customer’s classification, when operating conditions are compatible with readily
available valves.

On December 29, 2006, Congress enacted the Pipeline Inspection, Protection, Enforcement, and Safety (PIPES) Act of 2006 (Pub. L. 109–468). Section 9 of the PIPES Act (codified at 49 U.S.C. 60109(e)) stated that ‘‘[n]ot later than December 31, 2007, the Secretary [of Transportation] shall prescribe minimum standards for integrity management programs for distribution pipelines.’’ Section 9
further stated that those ‘‘minimum standards shall include a requirement for an operator of a natural gas distribution system to install an excess flow valve on each single family
residence service line’’ under certain prescribed conditions.

In 2009, PHMSA issued the Distribution Integrity Management Program (DIMP) final rule (74 FR 63906). The DIMP final rule required that operators install EFVs on all new or