[Federal Register Volume 61, Number 64 (Tuesday, April 2, 1996)]
[Notices]
[Pages 14593-14594]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 96-7969]



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DEPARTMENT OF TRANSPORTATION

International Conference on Aircraft Inflight Icing

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of conference.

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SUMMARY: The FAA is issuing this notice to advise the public of an 
International Conference on Aircraft Inflight Icing.

DATES: The conference will be held on May 6-8, 1996, beginning at 8:30 
a.m. each day. Requests to make presentations at the working group 
sessions must be received by April 22, 1996.

ADDRESSES: The conference will be held at the Springfield Hilton, 5660 
Loisdale Road, Springfield, Virginia, near Washington, DC.

FOR FURTHER INFORMATION CONTACT: Dr. James T. Riley, Federal Aviation 
Administration Technical Center (AAR-421), Atlantic City International 
Airport, New Jersey 08405; telephone (609) 485-4144; fax (609) 485-
4005.

SUPPLEMENTARY INFORMATION: 

Background

    The conference is an integral part of the third phase of the 
response of the Federal Aviation Administration (FAA) to an accident of 
a transport category aircraft in October 1994. The goal of this phase 
is to review current certification requirements, applicable operating 
regulations, and forecast methodologies associated with aircraft icing 
under varying environmental conditions. Also, the conference will 
include a review of major aspects of airworthiness when operating in 
icing conditions so as to determine if changes or modifications should 
be made to provide an increased level of safety.
    One of the primary areas of concern at the conference will be icing 
due to supercooled large droplets (SLD) (or other icing conditions 
outside of the FAA icing certification envelope described in Appendix C 
of Part 25 of the Federal Aviation Regulations).
    The conference has two primary objectives. The first is to provide 
a comprehensive survey of the state-of-the-art and knowledge in the 
area of aircraft inflight icing. The second is to provide 
recommendations for short-term actions in areas such as operations, 
training, and education and for long-term efforts such as research, 
development, and rulemaking.
    The FAA is seeking to obtain technical information which can form a 
basis for ensuring safe operations when icing conditions exist in an 
area. To this end, the conference seeks to bring together experts in 
all relevant technical areas, some of whom will give formal 
presentations (based on the technical papers solicited in a Call for 
Papers or invited from recognized experts) in various working groups. 
Based on the technical information provided, the working groups will 
make recommendations as to short- and long-term action which may be 
warranted.
    The recommendations of the conference will be used in preparing an 
FAA inflight icing plan with specific actions and milestones.

Requests To Make Presentations

    Persons wishing to make a brief formal presentation at any of the 
working group sessions are requested to notify the FAA by April 22, 
1996. The request should be made to the person identified under the 
caption FOR FURTHER INFORMATION CONTACT. Because of time limitations, 
the working group chair will review those requests and choose a 
representative number to address their working group. All individuals 
requesting to make a presentation will be notified as to the 
disposition of their request.

Conference Procedures

    Persons who plan to attend the conference should be aware of the 
following:
    1. Registration forms are available from SRM, Inc., P.O. Box 569, 
Kensington, MD 20895, telephone (301) 949-7477; fax: (301) 949-5154. 
There is a registration fee of $40 for the conference, which includes a 
reception from 6:30 to 8:00 on Monday night and beverage breaks during 
the conference.
    2. The conference will be held near Washington, DC at the 
Springfield Hilton, 5660 Loisdale Road, Springfield, Virginia. A block 
of rooms is being held until April 12. For reservations, call 703-971-
8900 or 800-455-8667, and reference the FAA conference to get the 
conference rate.
    3. The conference registration desk will be open from 6 to 9 p.m. 
on May 5 and beginning at 7 a.m. on May 6.
    4. Sessions will be open to all persons who register. Attendees are 
requested to notify the FAA in advance if they plan to attend although 
lack of advance notification will not bar anyone from any session.
    5. Only those recognized by the chair of any session will be 
permitted to speak.

Agenda

Monday, May 6

8:30 a.m.-2:45 p.m.--Plenary Session Including presentations by 
national and international organizations addressing key issues 
associated with aircraft inflight icing.
3:00 p.m.-5:30 p.m.--Concurrent Working Group Sessions.

    Working Group I. Ice Protection and Ice Detection: Determination of 
ice protection systems appropriate to specified aircraft 
characteristics and icing environments. Detection of icing conditions. 
Use of specially located or designed ice detector or of aircraft-
specific ``cues'' to recognize SLD and other icing conditions.
    Working Group 2. Requirements for, and Means of Compliance in Icing 
Conditions (Including Icing Simulation Methods): Applicability, 
limitations, and ``validation'' of icing simulation techniques, 
including icing and wind tunnel, icing tankers, analytical codes, and 
flight with artificial ice shapes. For all analytical and simulation 
techniques, discuss limitations and possible ``validation'' standards. 
Icing effects on aircraft aerodynamics, performance, and stability and 
control. Compliance with certification standards or aircraft ``safe 
exit capability'' requirements by means of flight in

[[Page 14594]]
measured natural icing conditions and use of icing simulation 
methodologies.
    Working Group 3. Icing Environmental Characterization: Icing 
environments: Appendix C of part 25 of FAR, SLD, ice crystals, snow, 
mixed conditions. Measurement (including processing and accuracy) of 
drop sizes, drop counts, liquid water content, etc. Choice of 
parameters to describe environment.
    Working Group 4. Forecasting/Avoidance: Accuracy and timeliness of 
icing forecasts. The practical use of severity indices. Avoidance of 
forecast or known icing conditions.
    Working Group 5. Operational Regulations and Training Requirements: 
Safe operations in areas of freezing rain or drizzle. Flight crew 
training to recognize and avoid or exit from severe icing, including 
SLD conditions. Operational definitions of icing and certification 
icing requirements. Use of PIREPS. Dispatch procedures related to SLD 
conditions.

Tuesday, May 7

8:30 a.m.-5:30 p.m.--Continuation of Working Group Sessions

Wednesday, May 8

8:30 a.m.-11:30 a.m. Continuation of Working Group Sessions
1:00 p.m.-4:00 p.m. Closing Session
Including reports from the working groups
Daniel Salvano,
Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 96-7969 Filed 4-1-96; 8:45 am]
BILLING CODE 4910-13-M