[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR129.23]

[Page 1026-1027]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 129_OPERATIONS: FOREIGN AIR CARRIERS AND FOREIGN OPERATORS OF 
U.S.-REGISTERED AIRCRAFT ENGAGED IN COMMON CARRIAGE--Table of Contents
 
Sec.  129.23  Transport category cargo service airplanes: Increased zero 
fuel and landing weights.

    (a) Notwithstanding the applicable structural provisions of the 
transport category airworthiness regulations, but subject to paragraphs 
(b) through (g) of this section, a foreign air carrier may operate (for 
cargo service only) any of the following transport category airplanes 
(certificated under part 4b of the Civil Air Regulations effective 
before March 13, 1956) at increased zero fuel and landing weights--
    (1) DC-6A, DC-6B, DC-7B, and DC-7C; and
    (2) L-1049 B, C, D, E, F, G, and H, and the L-1649A when modified in 
accordance with supplemental type certificate SA 4-1402.
    (b) The zero fuel weight (maximum weight of the airplane with no 
disposable fuel and oil) and the structural landing weight may be 
increased beyond the maximum approved in full compliance with applicable 
rules only if the Administrator finds that--
    (1) The increase is not likely to reduce seriously the structural 
strength;
    (2) The probability of sudden fatigue failure is not noticeably 
increased;
    (3) The flutter, deformation, and vibration characteristics do not 
fall below those required by applicable regulations; and
    (4) All other applicable weight limitations will be met.
    (c) No zero fuel weight may be increased by more than five percent, 
and the increase in the structural landing weight may not exceed the 
amount, in pounds, of the increase in zero fuel weight.
    (d) Each airplane must be inspected in accordance with the approved 
special inspection procedures, for operations at increased weights, 
established and issued by the manufacturer of the type of airplane.
    (e) A foreign air carrier may not operate an airplane under this 
section unless the country of registry requires the airplane to be 
operated in accordance with the passenger-carrying

[[Page 1027]]

transport category performance operating limitations in part 121 or the 
equivalent.
    (f) The Airplane Flight Manual for each airplane operated under this 
section must be appropriately revised to include the operating 
limitations and information needed for operation at the increased 
weights.
    (g) Each airplane operated at an increased weight under this section 
must, before it is used in passenger service, be inspected under the 
special inspection procedures for return to passenger service 
established and issued by the manufacturer and approved by the 
Administrator.

[Doc. No. 6403, 29 FR 19098, Dec. 30, 1964]