51-26-02: Automatic Pilots
FAA order 51-26-02 is an airworthiness directive. The FAA's subject line: Automatic Pilots. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Appliance
- Makes
- Lear, Inc.
- Models
- Automatic Pilots
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 (760 characters)
51-26-02 LEAR: Applies to All L-2 Series Automatic Pilots.
Compliance required at next 100-hour airplane inspection, but not later than January 1, 1952.
Inspect all L-2 Series autopilot servos to determine whether servo clutches have green dot on the shaft at the output end of servo capstan shaft, or a green dot on or below the servo nameplate, or a yellow dot on the clutch housing. All clutches not so marked must be replaced. Replacement clutches will be supplied by Lear upon request.
(Lear Service Bulletin No. L-2-16 dated October 26, 1951, covers this same subject.)
This applies only to Servo Models 121C, 121D, 121F, 121G, 121H, 121J, manufactured prior to March 1, 1952. Reference Lear Service Bulletin No. L-2-44, dated May 24, 1954.
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/51-26-02.json · aircraft systems.