59-07-02: Auxiliary Hydraulic Pump
FAA order 59-07-02 is an airworthiness directive. The FAA's subject line: Auxiliary Hydraulic Pump. System: heating, ice protection and utility systems.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- L. B. Smith Aircraft Corporation
- Models
- C-46A, C-46D, C-46F
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (834 characters)
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.)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/59-07-02.json · aircraft systems.