Special Conditions: Gulfstream Aerospace LP (GALP) Model G280 Airplane Pilot-Compartment View-Hydrophobic Coatings in Lieu of Windshield Wipers, 63823-63824 [2011-26556]

Download as PDF Federal Register / Vol. 76, No. 199 / Friday, October 14, 2011 / Rules and Regulations The technical aspects of this requirement have been agreed upon and have been accepted by the ARAC Loads and Dynamics Harmonization Working Group, and incorporated in EASA CS– 25. The proposed special conditions outlined below reflect the ARAC recommendation and CS–25. In addition, the ARAC recommendation includes corresponding advisory material that is considered an acceptable means of compliance to the proposed special conditions outlined below. To maintain the level of safety envisioned by § 25.361(b), more comprehensive criteria are needed for the new generation of high-bypass engines. These proposed special conditions would distinguish between the more-common engine-failure events and those rare events resulting from structural failures. The more-common events would continue to be treated as static torque limit load conditions. The more-severe events resulting from extreme engine-failure conditions (such as loss of a full fan blade at redline speed), would be treated as full dynamic-load conditions. These would be considered ultimate loads, and include all transient loads associated with the event. An additional safety factor would be applied to the morecritical airframe supporting structure. Applicability As discussed above, these special conditions are applicable to the GALP Model G280 airplane. Should GALP 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. tkelley on DSK3SPTVN1PROD with RULES Conclusion This action affects only certain novel or unusual design features on one model of airplane. It is not a rule of general applicability. Under standard practice, the effective date of final special conditions would be 30 days after the date of publication in the Federal Register. However, as the certification date for the GALP Model G280 airplane is imminent, the FAA finds that good cause exists to make these special conditions effective upon issuance. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. The authority citation for these special conditions is as follows: VerDate Mar<15>2010 14:14 Oct 13, 2011 Jkt 226001 The Special Conditions DEPARTMENT OF TRANSPORTATION Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the typecertification basis for GALP Model G280 airplane. In lieu of 14 CFR 25.361(b), the following special conditions are proposed: 1. For turbine-engine installations, the engine mounts, pylons and adjacent supporting airframe structure must be designed to withstand 1g level flight loads acting simultaneously with the maximum limit torque loads imposed by each of the following: (a) Sudden engine deceleration due to a malfunction, which could result in a temporary loss of power or thrust; and (b) the maximum acceleration of the engine. 2. For auxiliary power unit (APU) installations, the APU mounts and adjacent supporting airframe structure must be designed to withstand 1g level flight loads acting simultaneously with the maximum limit torque loads imposed by each of the following: (a) Sudden APU deceleration due to malfunction or structural failure; and (b) The maximum acceleration of the APU. 3. For engine-supporting structure, an ultimate loading condition must be considered that combines 1g flight loads with the transient dynamic loads resulting from: (a) The loss of any fan, compressor, or turbine blade; and separately (b) Where applicable to a specific engine design, any other engine structural failure that results in higher loads. 4. The ultimate loads developed from the conditions specified in paragraphs 3(a) and 3(b) of these special conditions are to be multiplied by a factor of 1.0 when applied to engine mounts and pylons, and multiplied by a factor of 1.25 when applied to adjacent supporting airframe structure. 5. Any permanent deformation that results from the conditions specified in paragraph 3 of these special conditions must not prevent continued safe flight and landing. Federal Aviation Administration Issued in Renton, Washington, on October 6, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. 63823 [FR Doc. 2011–26557 Filed 10–13–11; 8:45 am] BILLING CODE 4910–13–P PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 14 CFR Part 25 [Docket No. NM457; Notice No. 25–449–SC] Special Conditions: Gulfstream Aerospace LP (GALP) Model G280 Airplane Pilot-Compartment View— Hydrophobic Coatings in Lieu of Windshield Wipers Federal Aviation Administration (FAA), DOT. ACTION: Final special conditions. AGENCY: These special conditions are issued for the Gulfstream Aerospace LP (GALP) Model G280 airplane. This airplane will have a novel or unusual design feature associated with the pilotcompartment view through a hydrophobic windshield coating, in lieu of windshield wipers. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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: Effective Date: November 14, 2011. FOR FURTHER INFORMATION CONTACT: Loran Haworth, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1133; facsimile (425) 227–1149. SUPPLEMENTARY INFORMATION: SUMMARY: Background On March 30, 2006, GALP applied for a type certificate for their new Model G280 airplane. The G280 is an 8–10 passenger (19 maximum), twin-engine airplane with a 41,000-foot cruise altitude, a maximum operating altitude of 45,000 feet, and a range of approximately 3,400 nautical miles. Type Certification Basis Under the provisions of Title 14, Code of Federal Regulations (14 CFR) 21.17, GALP must show that the Model G280 airplane meets the applicable provisions of part 25 as amended by Amendments 25–1 through 25–117. If the Administrator finds that the applicable airworthiness regulations (i.e., 14 CFR part 25) do not contain adequate or appropriate safety standards for the Model G280 airplane because of a novel or unusual design feature, special conditions are prescribed under the provisions of § 21.16. E:\FR\FM\14OCR1.SGM 14OCR1 63824 Federal Register / Vol. 76, No. 199 / Friday, October 14, 2011 / Rules and Regulations 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, the special conditions would also apply to the other model. In addition to the applicable airworthiness regulations and special conditions, the Model G280 airplane 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; and the FAA must issue a finding of regulatory adequacy under § 611 of Public Law 92– 574, the ‘‘Noise Control Act of 1972.’’ The FAA issues special conditions, as defined in 14 CFR 11.19, in accordance with § 11.38, and they become part of the type-certification basis under § 21.17(a)(2). tkelley on DSK3SPTVN1PROD with RULES Novel or Unusual Design Features The Model G280 will incorporate the following novel or unusual design features: The GALP Model G280 airplane flight-deck design incorporates a hydrophobic coating to provide adequate pilot-compartment view in the presence of precipitation. Sole reliance on such a coating, without windshield wipers, constitutes a novel or unusual design feature for which the applicable airworthiness regulations do not contain adequate or appropriate safety standards. Therefore, special conditions are required that provide the level of safety equivalent to that established by the regulations. Discussion Section 25.773(b)(1) of 14 CFR requires a means to maintain a clear portion of the windshield for both pilots to have a sufficiently extensive view along the flight path during precipitation conditions. The regulations require this means to maintain such an area during precipitation in heavy rain at speeds up to 1.5 VSR1. Hydrophobic windshield coatings may depend to some degree on airflow to maintain a clear-vision area. The heavy rain and high speed conditions specified in the current rule do not necessarily represent the limiting condition for this new technology. For example, airflow over the windshield, which may be necessary to remove moisture from the windshield, may not be adequate to maintain a sufficiently clear area of the windshield in lowspeed flight or during surface operations. Alternatively, airflow over the windshield may be disturbed during such critical times as the approach to VerDate Mar<15>2010 14:14 Oct 13, 2011 Jkt 226001 land, where the airplane is at a higherthan-normal pitch attitude. In these cases, areas of airflow disturbance or separation on the windshield could cause failure to maintain a clear-vision area on the windshield. DEPARTMENT OF COMMERCE Discussion of Comments Notice of Proposed Special Conditions no. 25–11–14–SC for the GALP Model G280 airplane was published in the Federal Register on May 25, 2011 (76 FR 30294). No comments were received, and the special conditions are adopted as proposed. [Docket No. 070726412–1300–02] Applicability As discussed above, these special conditions are applicable to the GALP Model G280 airplane. Should GALP 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 the GALP Model G280 airplane. It is not a rule of general applicability. List of Subjects in 14 CFR Part 25 Aircraft, Aviation safety, Reporting and recordkeeping requirements. The authority citation for these special conditions is as follows: Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. The Special Conditions Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the typecertification basis for the GALP Model G280 airplane. The airplane must have a means to maintain a clear portion of the windshield, during precipitation conditions, enough for both pilots to have a sufficiently extensive view along the ground or flight path in normal taxi and flight attitudes of the airplane. This means must be designed to function, without continuous attention on the part of the crew, in conditions from light misting precipitation to heavy rain, at speeds from fully stopped in still air to 1.5 VSR1 with lift and drag devices retracted. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011–26556 Filed 10–13–11; 8:45 am] BILLING CODE 4910–13–P PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 National Oceanic and Atmospheric Administration 15 CFR Part 922 RIN 0648–AV88 Research Area Within Gray’s Reef National Marine Sanctuary Office of National Marine Sanctuaries (ONMS), National Oceanic and Atmospheric Administration (NOAA), Department of Commerce (DOC). ACTION: Final rule. AGENCY: The National Oceanic and Atmospheric Administration (NOAA) is creating a research area within Gray’s Reef National Marine Sanctuary (GRNMS, or sanctuary). A research area is a region specifically designed for conducting controlled scientific studies in the absence of certain human activities that could affect the results. NOAA is prohibiting fishing, diving, and stopping a vessel in the research area. SUMMARY: Effective Date: Pursuant to section 304(b) of the National Marine Sanctuaries Act (NMSA) (16 U.S.C. 1434(b)), the revised designation and regulations shall take effect and become final after the close of a review period of forty-five days of continuous session of Congress beginning on October 14, 2011. Announcement of the effective date of the final regulations will be published in the Federal Register. ADDRESSES: Copies of the final environmental impact statement (FEIS) described in this rule and the record of decision (ROD) are available upon request to Gray’s Reef National Marine Sanctuary, 10 Ocean Science Circle, Savannah, GA 31411, Attn: Dr. George Sedberry, Superintendent. The FEIS can also be viewed on the Web and downloaded at https:// graysreef.noaa.gov. DATES: FOR FURTHER INFORMATION CONTACT: Resource Protection Coordinator Becky Shortland at (912) 598–2381. SUPPLEMENTARY INFORMATION: On September 14, 2010, NOAA published a proposed rule to establish a research area within Gray’s Reef National Marine Sanctuary and announced the availability of a draft environmental impact statement (DEIS) (75 FR 55692). This final rule establishes the research area; prohibits fishing, diving, and stopping a vessel in the research area; publishes the revised designation E:\FR\FM\14OCR1.SGM 14OCR1

Agencies

[Federal Register Volume 76, Number 199 (Friday, October 14, 2011)]
[Rules and Regulations]
[Pages 63823-63824]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-26556]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. NM457; Notice No. 25-449-SC]


Special Conditions: Gulfstream Aerospace LP (GALP) Model G280 
Airplane Pilot-Compartment View--Hydrophobic Coatings in Lieu of 
Windshield Wipers

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions.

-----------------------------------------------------------------------

SUMMARY: These special conditions are issued for the Gulfstream 
Aerospace LP (GALP) Model G280 airplane. This airplane will have a 
novel or unusual design feature associated with the pilot-compartment 
view through a hydrophobic windshield coating, in lieu of windshield 
wipers. The applicable airworthiness regulations do not contain 
adequate or appropriate safety standards for this design feature. These 
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: Effective Date: November 14, 2011.

FOR FURTHER INFORMATION CONTACT: Loran Haworth, Transport Airplane 
Directorate, Aircraft Certification Service, 1601 Lind Avenue, SW., 
Renton, Washington 98057-3356; telephone (425) 227-1133; facsimile 
(425) 227-1149.

SUPPLEMENTARY INFORMATION: 

Background

    On March 30, 2006, GALP applied for a type certificate for their 
new Model G280 airplane. The G280 is an 8-10 passenger (19 maximum), 
twin-engine airplane with a 41,000-foot cruise altitude, a maximum 
operating altitude of 45,000 feet, and a range of approximately 3,400 
nautical miles.

Type Certification Basis

    Under the provisions of Title 14, Code of Federal Regulations (14 
CFR) 21.17, GALP must show that the Model G280 airplane meets the 
applicable provisions of part 25 as amended by Amendments 25-1 through 
25-117.
    If the Administrator finds that the applicable airworthiness 
regulations (i.e., 14 CFR part 25) do not contain adequate or 
appropriate safety standards for the Model G280 airplane because of a 
novel or unusual design feature, special conditions are prescribed 
under the provisions of Sec.  21.16.

[[Page 63824]]

    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, the special conditions would also apply to the 
other model.
    In addition to the applicable airworthiness regulations and special 
conditions, the Model G280 airplane 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; and the FAA must issue a 
finding of regulatory adequacy under Sec.  611 of Public Law 92-574, 
the ``Noise Control Act of 1972.''
    The FAA issues special conditions, as defined in 14 CFR 11.19, in 
accordance with Sec.  11.38, and they become part of the type-
certification basis under Sec.  21.17(a)(2).

Novel or Unusual Design Features

    The Model G280 will incorporate the following novel or unusual 
design features:
    The GALP Model G280 airplane flight-deck design incorporates a 
hydrophobic coating to provide adequate pilot-compartment view in the 
presence of precipitation. Sole reliance on such a coating, without 
windshield wipers, constitutes a novel or unusual design feature for 
which the applicable airworthiness regulations do not contain adequate 
or appropriate safety standards. Therefore, special conditions are 
required that provide the level of safety equivalent to that 
established by the regulations.

Discussion

    Section 25.773(b)(1) of 14 CFR requires a means to maintain a clear 
portion of the windshield for both pilots to have a sufficiently 
extensive view along the flight path during precipitation conditions. 
The regulations require this means to maintain such an area during 
precipitation in heavy rain at speeds up to 1.5 VSR1. 
Hydrophobic windshield coatings may depend to some degree on airflow to 
maintain a clear-vision area. The heavy rain and high speed conditions 
specified in the current rule do not necessarily represent the limiting 
condition for this new technology. For example, airflow over the 
windshield, which may be necessary to remove moisture from the 
windshield, may not be adequate to maintain a sufficiently clear area 
of the windshield in low-speed flight or during surface operations. 
Alternatively, airflow over the windshield may be disturbed during such 
critical times as the approach to land, where the airplane is at a 
higher-than-normal pitch attitude. In these cases, areas of airflow 
disturbance or separation on the windshield could cause failure to 
maintain a clear-vision area on the windshield.

Discussion of Comments

    Notice of Proposed Special Conditions no. 25-11-14-SC for the GALP 
Model G280 airplane was published in the Federal Register on May 25, 
2011 (76 FR 30294). No comments were received, and the special 
conditions are adopted as proposed.

Applicability

    As discussed above, these special conditions are applicable to the 
GALP Model G280 airplane. Should GALP 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 the GALP Model G280 airplane. It is not a rule of general 
applicability.

List of Subjects in 14 CFR Part 25

    Aircraft, Aviation safety, Reporting and recordkeeping 
requirements.

    The authority citation for these special conditions is as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704.

The Special Conditions

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the following special conditions are issued as part of 
the type-certification basis for the GALP Model G280 airplane.
    The airplane must have a means to maintain a clear portion of the 
windshield, during precipitation conditions, enough for both pilots to 
have a sufficiently extensive view along the ground or flight path in 
normal taxi and flight attitudes of the airplane. This means must be 
designed to function, without continuous attention on the part of the 
crew, in conditions from light misting precipitation to heavy rain, at 
speeds from fully stopped in still air to 1.5 VSR1 with lift 
and drag devices retracted.

Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-26556 Filed 10-13-11; 8:45 am]
BILLING CODE 4910-13-P

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.