| AD Number | 52-18-01 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Airlift International, Inc. Curtiss-Wright Corporation Flying Tiger Line, Inc. L. B. Smith Aircraft Corporation Skyways International Trading and Transport Co. Tempo Design Corporation |
| Model(s) | C-46A C-46D C-46F C-46R C-46E C-46A C-46D C-46E C-46F C-46A C-46D C-46F C-46F C-46/CW20-T Super C-46/CW20-T |
52-18-01 CURTISS-WRIGHT: Applies to all Model C-46 aircraft equipped with Curtiss Drawing P/N S20-480-1101-2 Carburetor Adapter Gasket.
Compliance required not later than December 1, 1952.
Several instances of splitting and tearing of the neoprene carburetor adapter gasket, P/N S20-480-1101-2, permitting portions of gasket material to block the carburetor air passage has resulted in abrupt engine cutout. To eliminate the occurrence of this hazardous condition, either of the following changes or an approved equivalent shall be accomplished:
(a) Install new gasket and clamping assembly per USAF T.O. 01-25LA-79.
(b) Install carburetor adapter flange, Slick Airways P/N 00391-2.
As a precautionary measure, the subject gaskets shall be inspected for signs of looseness and splitting during each periodic inspection until accomplishment of the above.