Special Conditions: SNECMA, Silvercrest-2 SC-2D; Rated 10-Minute One Engine Inoperative Takeoff Thrust at High Ambient Temperature; Withdrawal, 28994 [2017-12939]

Download as PDF 28994 Federal Register / Vol. 82, No. 122 / Tuesday, June 27, 2017 / Rules and Regulations As of June 27, 2017, the special conditions published on October 31, 2014, at 79 FR 64666, are withdrawn. FOR FURTHER INFORMATION CONTACT: Tara Fitzgerald, ANE–112, Engine and Propeller Directorate, Aircraft Certification Service, 1200 District Avenue, Burlington, Massachusetts, 01803–5213; telephone (781) 238–7130; facsimile (781) 238–7199; email Tara.Fitzgerald@faa.gov. SUPPLEMENTARY INFORMATION: DATES: Background On April 19, 2011, SNECMA, now known as Safran Aircraft Engines (SAE) applied for a new type certificate for the Silvercrest-2 SC–2D engine model. At that time, the Silvercrest-2 SC–2D engine model was to have a novel or unusual design feature when compared to the state of technology described in the airworthiness standards for aircraft engines. The design feature included an additional takeoff rating for the Silvercrest-2 SC–2D engine model, named ‘‘Rated 10-Minute One Engine Inoperative Takeoff Thrust at High Ambient Temperature’’ (Rated 10Minute OEI TOTHAT). It was intended to maintain the takeoff thrust in certain high ambient temperature conditions for a maximum of 10 minutes with one engine inoperative (OEI). Reason for Withdrawal The FAA is withdrawing Notice No. 33–014–01–SC because of concerns raised over the sufficiency of the ‘‘Rated 10-Minute OEI TOTHAT’’ special condition to meet the Automatic Takeoff Thrust Control System (ATTCS) design requirement specified in Title 14, Code of Federal Regulations (14 CFR) part 25, section I25.5(b)(2). The proposed takeoff rating was for use during OEI events that occur during takeoff in high ambient temperature conditions, up to 5 degrees Celsius hotter than the rated takeoff corner point. The assumptions for this rating are no longer valid and the ‘‘Rated 10Minute OEI TOTHAT’’ is not needed. pmangrum on DSK3GDR082PROD with RULES Conclusion This withdrawal does not preclude the FAA from issuing another notice on the subject matter in the future or committing the agency to any future course of action. Issued in Burlington, Massachusetts, on June 13, 2017. Carlos A. Pestana, Acting Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 2017–12937 Filed 6–26–17; 8:45 am] BILLING CODE 4910–13–P VerDate Sep<11>2014 15:07 Jun 26, 2017 Jkt 241001 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 33 [Docket No. FAA–2014–0376; Notice No. 33– 014–01–SC] Special Conditions: SNECMA, Silvercrest-2 SC–2D; Rated 10-Minute One Engine Inoperative Takeoff Thrust at High Ambient Temperature; Withdrawal Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions, withdrawal. AGENCY: The FAA is withdrawing previously published special conditions for the Silvercrest-2 SC–2D engine model. We are requesting the withdrawal because the ‘‘Rated 10Minute One Engine Inoperative Takeoff Thrust at High Ambient Temperature (Rated 10-Minute OEI TOTHAT) is not needed. DATES: As of June 27, 2017, the special conditions published on October 31, 2014 at 79 FR 64666, are withdrawn. FOR FURTHER INFORMATION CONTACT: Tara Fitzgerald, ANE–112, Engine and Propeller Directorate, Aircraft Certification Service, 1200 District Avenue, Burlington, Massachusetts, 01803–5213; telephone (781) 238–7130; facsimile (781) 238–7199; email Tara.Fitzgerald@faa.gov. SUPPLEMENTARY INFORMATION: SUMMARY: Background On April 19, 2011, SNECMA, now known as Safran Aircraft Engines (SAE) applied for a new type certificate for the Silvercrest-2 SC–2D engine model. At that time, the Silvercrest-2 SC–2D engine model was to have a novel or unusual design feature when compared to the state of technology described in the airworthiness standards for aircraft engines. The design feature included an additional takeoff rating for the Silvercrest-2 SC–2D engine model, named ‘‘Rated 10-Minute One Engine Inoperative Takeoff Thrust at High Ambient Temperature’’ (Rated 10Minute OEI TOTHAT). It was intended to maintain the takeoff thrust in certain high ambient temperature conditions for a maximum of 10 minutes with one engine inoperative (OEI). Reason for Withdrawal The FAA is withdrawing Notice No. 33–014–01–SC because of concerns raised over the sufficiency of the ‘‘Rated 10-Minute OEI TOTHAT’’ special condition to meet the Automatic Takeoff PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 Thrust Control System (ATTCS) design requirement specified in Title 14, Code of Federal Regulations (14 CFR) part 25, section I25.5(b)(2). The proposed takeoff rating was for use during OEI events that occur during takeoff in high ambient temperature conditions, up to 5 degrees Celsius hotter than the rated takeoff corner point. The assumptions for this rating are no longer valid and the ‘‘Rated 10Minute OEI TOTHAT’’ is not needed. Conclusion This withdrawal does not preclude the FAA from issuing another notice on the subject matter in the future or committing the agency to any future course of action. Issued in Burlington, Massachusetts, on June 13, 2017. Carlos A. Pestana, Acting Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 2017–12939 Filed 6–26–17; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF COMMERCE National Institutes of Standards and Technology 15 CFR Part 290 [Docket No.: 170526519–7519–01] RIN 0693–AB64 Hollings Manufacturing Extension Partnership—Amendments to the Terms and Schedule of Financial Assistance National Institute of Standards and Technology (NIST), United States Department of Commerce. ACTION: Final rule. AGENCY: NIST is issuing a final rule to amend the regulations governing the Hollings Manufacturing Extension Partnership (MEP) program to reflect the current cost sharing requirements for cooperative agreements for the establishment and operation of MEP Centers, consistent with recent amendments to the MEP authorizing statute. Under the revised statute, NIST may provide up to 50 percent of the capital and annual operating and maintenance funds required to establish and support an MEP Center. The regulations are also being amended to remove other cost sharing rules that are not required by the MEP authorizing statute or current program policies. DATES: This rule is effective June 27, 2017. SUMMARY: E:\FR\FM\27JNR1.SGM 27JNR1

Agencies

[Federal Register Volume 82, Number 122 (Tuesday, June 27, 2017)]
[Rules and Regulations]
[Page 28994]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-12939]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 33

[Docket No. FAA-2014-0376; Notice No. 33-014-01-SC]


Special Conditions: SNECMA, Silvercrest-2 SC-2D; Rated 10-Minute 
One Engine Inoperative Takeoff Thrust at High Ambient Temperature; 
Withdrawal

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions, withdrawal.

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SUMMARY: The FAA is withdrawing previously published special conditions 
for the Silvercrest-2 SC-2D engine model. We are requesting the 
withdrawal because the ``Rated 10-Minute One Engine Inoperative Takeoff 
Thrust at High Ambient Temperature (Rated 10-Minute OEI TOTHAT) is not 
needed.

DATES: As of June 27, 2017, the special conditions published on October 
31, 2014 at 79 FR 64666, are withdrawn.

FOR FURTHER INFORMATION CONTACT: Tara Fitzgerald, ANE-112, Engine and 
Propeller Directorate, Aircraft Certification Service, 1200 District 
Avenue, Burlington, Massachusetts, 01803-5213; telephone (781) 238-
7130; facsimile (781) 238-7199; email Tara.Fitzgerald@faa.gov.

SUPPLEMENTARY INFORMATION: 

Background

    On April 19, 2011, SNECMA, now known as Safran Aircraft Engines 
(SAE) applied for a new type certificate for the Silvercrest-2 SC-2D 
engine model. At that time, the Silvercrest-2 SC-2D engine model was to 
have a novel or unusual design feature when compared to the state of 
technology described in the airworthiness standards for aircraft 
engines. The design feature included an additional takeoff rating for 
the Silvercrest-2 SC-2D engine model, named ``Rated 10-Minute One 
Engine Inoperative Takeoff Thrust at High Ambient Temperature'' (Rated 
10-Minute OEI TOTHAT). It was intended to maintain the takeoff thrust 
in certain high ambient temperature conditions for a maximum of 10 
minutes with one engine inoperative (OEI).

Reason for Withdrawal

    The FAA is withdrawing Notice No. 33-014-01-SC because of concerns 
raised over the sufficiency of the ``Rated 10-Minute OEI TOTHAT'' 
special condition to meet the Automatic Takeoff Thrust Control System 
(ATTCS) design requirement specified in Title 14, Code of Federal 
Regulations (14 CFR) part 25, section I25.5(b)(2).
    The proposed takeoff rating was for use during OEI events that 
occur during takeoff in high ambient temperature conditions, up to 5 
degrees Celsius hotter than the rated takeoff corner point. The 
assumptions for this rating are no longer valid and the ``Rated 10-
Minute OEI TOTHAT'' is not needed.

Conclusion

    This withdrawal does not preclude the FAA from issuing another 
notice on the subject matter in the future or committing the agency to 
any future course of action.

    Issued in Burlington, Massachusetts, on June 13, 2017.
Carlos A. Pestana,
Acting Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2017-12939 Filed 6-26-17; 8:45 am]
 BILLING CODE 4910-13-P