| AD Number | 59-07-02 | 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) | L. B. Smith Aircraft Corporation |
| Model(s) | C-46A C-46D C-46F |
59-07-02 CURTISS-WRIGHT: Applies to all L.B. Smith C46/CW20-T aircraft not having this modification incorporated.
To be accomplished not later than August 1, 1959.
Service experience has indicated that the auxiliary hydraulic pump is unsatisfactory for use in compliance with the minimum gear retraction time.
To provide reliable continuous hydraulic pressure during landing gear retraction, the auxiliary hydraulic pump and motor must be removed from the hydraulic system and replaced by a hydraulic by-pass system in accordance with L. B. Smith Aircraft Corporation Report No. RX5.130.01 dated April 16, 1958, or an equivalent system. Airplane Flight Manual Revision, dated July 11, 1958, is required with this modification.
(L. B. Smith Service Modification No. SM20T-6 dated June 23, 1958, covers this same subject.)