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VOLUME 18

934
oa/it e o

NUMBER 248

Washington, Tuesday, December 22, 1953

placed on service experience, including CONTENTS
the information obtained from such tests, Chapter I Civil Aeronautics Board inspections, or measurements as have Army Department been performed in accumulating such See Engineers Corps.
Subchapter A Civil Air Regulations service experience.
Supp. 4
b Procedure for establishing new or Civil Aeronautics Administra tion revised time limitations. 1 Time limi Part 40 S cheduled I n t e r s ta t e A ir tations may be established in terms of See Civil Aeronautics Board.
Carrier C e r t if ic a t io n and O p e r a t io n hours of operation, multiples of engine Civil Aeronautics Board R ules overhaul periods or multiples of inspec Proposed rule making:
miscellaneous in t e r p r e t a t io n s and tion periods. Time limitations for com Filing of reports by certificated POLICIES
ponents on which deterioration is not air carriers and uniform ac counting requirements______ _
On October 17, 1953, the Administra necessarily a function o f operating tor of Civil Aeronautics published in 18 hours, such as electronic units, pitot Rules and regulations:
Filing of reports by certificated P. R. 6610-6622, interpretations to de tubes and emergency flotation equip air carriers and uniform ac fine and policies to implement various ment may be established in terms of counting requirements; mail;
sections of new Part 40. The purpose of calendar months. Certain items may be United States; Federal sub this supplement is to revise or delete maintained on an on condition overhaul sidy__________________________
some of these interpretations and poli basis.
2 On condition overhaul is applica Scheduled interstate air carrier cies in response to comments received ble to components on which a determi certification and operation from interested persons.
rules; miscellaneous interpre 1.
Section 40.18-4 as published on nation of airworthiness may be made by tations and policies_________ October 17, 1953 in 18 F. R. 6610, is re visual inspection, measurements, tests, or other means without a teardown in vised to read:
Coast Guard spection or overhaul.
40.18-4 Policies, procedures and c Airframe initial time limitations. Rules and regulations:
licensing of officers and motorlimitations governing issuance and The initial time limitations fo r over boat operators and registra amendment of Operations Specifications, hauls, inspections, or checks of air tion of staff officers; examina Aircraft Maintenance iCAA policies frames may be established on a recur tion subjects for deck officers which apply to 40.18 a a Gen rent fixed time basis or by adoption of a o f ocean or coastwise steam or eral. The Administrator will issue and structural inspection specification cover motor vessels and experience amend Operations Specifications, A ir ing procedures such as pattern inspec requirements for applicants craft Maintenance, in accordance with tions, block overhauls, or progressive for motorboat operators li the following policies, procedures,, and inspections. Regardless of the basis censes__________ ____ ________
limitations. The criteria set forth in upon which the time limitations are es this section will be followed by the Ad tablished, the same basic standards will Commerce Department ministrator in fixing time limitations be applicable. The maintenance pro See Civil Aeronautics Board.
for the performance of overhaul, inspec gram must specify checks, inspections tions and checks, or in permitting or and overhauls to be performed and times Engineers Corps Rules and regulations:
requiring revisions thereto. The basic at which they will be performed.
Biscayne Bay, Florida; naviga principle followed by the Administrator d Appliances; initial time Umita tion regulations---------------- will be that the inspections, checks, tions. Initial time limitations for in maintenance or overhaul be performed at spections, bench checks, major inspec Federal Power Commission times well within the expected or proven tions or overhaul, as applicable, to the Notices:
service life of each component of the appliance involved, should not be greater Hearings, etc.:
aircraft. In determining what the ex than those limitations applicable to the Delaware Power & lig h t Co.
pected or proven service life of an air same or similar appliances used in ex et al___________________ l i f t or any of its components might isting aircraft operated by the air car Natural Gas Pipeline Co. of be, the Administrator will consider the rier. When the usage or installation o f America___________________
following factors: 1 Geographical such appliances differ to a substantial Texas Eastern Transmission area or areasof operation; 2 engine extent from the previous usage or in Corp. et al________
operating powers, procedures, etc.; 3 stallation, the time limitations shall be Texas Gas Transmission Dumber of landings, long haul versus adjusted to reflect the extent of such Corp. and Algonquin Gas short haul, etc.; 4 maintenance or difference. When new usage or installa Transmission Co-----------ganization and inspection procedures; tion is involved, conservative time limi Fish and Wildlife Service 5 other operators service experience tations should be established until serv Rules and regulations:
records; 6 manufacturers recommen ice experience shows that more liberal Revocation of regulations re dations; 7 service history, particularly time limits can be used. In those cases garding public hunting and fishing on certain national of known or evident trends toward mal where an appliance has a subcomponent wildlife refuges------ --------Continued on next page functioning. Special reliance win be
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