55-16-02: Fire Resistant Prop. Feathering Lines
FAA order 55-16-02 is an airworthiness directive. The FAA's subject line: Fire Resistant Prop. Feathering Lines. It names Martin 404: about 5 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Martin-Marietta Corporation
- Models
- 202, 202A, 404
- On this site
- Martin 404 5 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 (850 characters)
55-16-02 MARTIN: Applies to Models 202, 202A, and 404 Aircraft Equipped With Hamilton Standard Propellers.
Compliance required by first scheduled engine change after November 1, 1955, but not later than November 1, 1956.
To increase the fire-resistance integrity of the propeller feathering system against damage by a powerplant fire, all flexible hose components of propeller feathering lines forward of the firewall must be replaced with lines and fittings which will meet current fire-resistant requirements. The following hose assemblies are considered acceptable for this application:
(a) Aeroquip 680-12S hose assemblies with Aeroquip 304 protective sleeves over end fittings (Aeroquip assembly P/N 304000-12S).
(b) Resistoflex SSFR-3800-10 hose assemblies utilizing -12 connections.
(c) Aeroquip 309009-12S hose assemblies.
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/55-16-02.json · aircraft systems.