59-23-01: Water Rudder Cable Guard
FAA order 59-23-01 is an airworthiness directive. The FAA's subject line: Water Rudder Cable Guard. It names Piaggio P.136-L1: about 6 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: flight controls.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Piaggio & C.
- Models
- P.136-L1, P.136-L2
- On this site
- Piaggio P.136-L1 6 registered
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 (441 characters)
59-23-01 PIAGGIO: Applies to All Models P.136-L1 and P.136-L2 Aircraft.
Compliance required by December 31, 1959.
In order to preclude the water rudder cables from fouling the bolt end and nuts that secure the microswitch to the water rudder retraction cylinder, a cable guard plate must be installed. The Registro Aeronautico Italiano considers compliance mandatory.
(Piaggio & Co. Change Order No. 36 L-48 covers the 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 October 5, 2026. Connections as data: /graph/directive/59-23-01.json · aircraft systems.