Document ID: FAA-2013-0259-0105
Agency: faa
Document Type: Rule
Title: Special Conditions: Cirrus Design Corporation, Model SF50; Fire Extinguishing for Upper Aft Fuselage Mounted Engine; Withdrawal
Posted Date: 2013-06-14T04:00Z

[Federal Register Volume 78, Number 115 (Friday, June 14, 2013)]
[Rules and Regulations]
[Page 35747]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-14151]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 23

[Docket No. CE305; Special Conditions No. 23-245-SC]

Special Conditions: Cirrus Design Corporation, Model SF50; Fire 
Extinguishing for Upper Aft Fuselage Mounted Engine; Withdrawal

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions; withdrawal.

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SUMMARY: The FAA is withdrawing a previously published notice granting 
special conditions for the Cirrus Design Corporation model SF50 
airplane. We are withdrawing Special Condition No. 23-245-SC through 
mutual agreement with Cirrus Design Corporation.

DATES: This special condition published on April 20, 2010 at 75 FR 
20518 is withdrawn, effective June 14, 2013.

FOR FURTHER INFORMATION CONTACT: Leslie B. Taylor, Federal Aviation 
Administration, Small Airplane Directorate, Aircraft Certification 
Service, 901 Locust, Room 301, Kansas City, MO 64106; telephone (816) 
329-4134; facsimile (816) 329-4090, email leslie.b.taylor@faa.gov.

SUPPLEMENTARY INFORMATION:

Background

    On April 20, 2010, the FAA published Special Condition No. 23-245-
SC for the Cirrus Design Corporation new model SF50. The model SF50 is 
a 7-seat (5 adults and 2 children), pressurized, retractable gear, 
carbon composite, airplane with one turbofan engine mounted partially 
in the upper aft fuselage.
    The single turbofan engine is mounted on the upper aft fuselage, 
not in the pilot's line of site. Upper aft fuselage mounted engine 
installations, along with the need to protect such installed engines 
from fires, were not envisioned in the development of the part 23 
normal category regulations.
    The model SF50 certification project was granted an extension on 
September 19, 2011. Amendment 23-62 (76 FR 75736), published December 
2, 2011, incorporated Special Condition No. 23-245-SC. On December 11, 
2012, Cirrus Design Corporation elected to adjust the model SF50 
certification basis to 14 CFR part 23, Amendment 62.

Reason for Withdrawal

    The FAA is withdrawing Special Condition No. 23-245-SC because 
Cirrus elected to revise the model SF50 certification basis to 
Amendment 23-62.
    The authority citation for this Special Condition withdrawal is 49 
U.S.C. 106(g), 40113 and 44701; 14 CFR 21.16 and 21.17; and 14 CFR 
11.38 and 11.19.

Conclusion

    Withdrawal of this special condition 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 Kansas City, Missouri on June 5, 2013.
Earl Lawrence,
Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2013-14151 Filed 6-13-13; 8:45 am]
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