[Federal Register Volume 63, Number 173 (Tuesday, September 8, 1998)]
[Notices]
[Page 47544]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-23786]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
Proposed Revisions to Advisory Circular--Equipment, Systems, and
Installations in Part 23 Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed revisions to advisory circular and request
for comments.
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SUMMARY: This notice requests comments regarding proposed revisions to
Advisory Circular (AC) 23.1309-1C, ``Equipment, Systems, and
Installations in Part 23 Airplanes.'' The AC provides guidance and
information for an acceptable means for showing compliance with the
requirements of Sec. 23.1309(a) and (b) (Amendment 23-49) for
equipment, systems, and installations in Title 14 CFR Part 23
airplanes. The AC defines the appropriate airplane systems probability
levels for airplanes designed to 14 CFR Part 23 standards.
DATES: Comments must be received on or before November 4, 1998.
ADDRESSES: Send all comments on the proposed AC revisions to the
Federal Aviation Administration, Attention: Ervin Dvorak, ACE-111,
Regulations and Policy Branch, Small Airplane Directorate, Aircraft
Certification Service, 601 East 12th Street, Kansas City, Missouri
64106.
FOR FURTHER INFORMATION CONTACT: Terre Flynn, Regulations and Policy
Branch, ACE-111, at the above address, telephone number (816) 426-6941,
or facsimile (816) 426-2169.
SUPPLEMENTARY INFORMATION:
Comments Invited
A copy of the proposed revisions to the AC may be obtained by
contacting the person name above under FOR FURTHER INFORMATION CONTACT.
Interested persons are invited to comment on the proposed AC revisions
by submitting comments to the address specified above. All comments
received on or before the closing date will be considered by the Small
Airplane Directorate, 1201 Walnut, Room 900, Kansas City, Missouri
64106, between 7:30 a.m. and 4:00 p.m. weekdays, except Federal
holidays.
Background
This AC includes a matrix that categorizes new certification
probability levels for four certification classes of Part 23 airplanes.
The four certification classes of airplanes are as follows: Class I
(typically single, reciprocating engine airplanes under 6,000 pounds),
Class II (typically multi, reciprocating engine and single-engine
turbine airplanes under 6,000 pounds), Class III (typically airplanes
over 6,000 pounds), and Class IV (typically commuter category). Also,
the related Software Development Assurance Levels for the various
Failure Conditions for each certification class are part of the matrix.
The Small Airplane Directorate based the new probability levels on
historical accident data for each class.
Issued in Kansas City, Missouri, on August 27, 1998.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 98-23786 Filed 9-4-98; 8:45 am]
BILLING CODE 4910-13-M
