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54-19-01: Brake Line Cover Plate

FAA order 54-19-01 is an airworthiness directive published December 4, 1956. The FAA's subject line: Brake Line Cover Plate. It names Piper PA-18 Super Cub: about 3,620 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: landing gear.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Piper Aircraft Inc.
Models
PA-18A
On this site
Piper PA-18 Super Cub 3,620 registered

Dates and paperwork

Published
December 4, 1956
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 (671 characters)
54-19-01 PIPER: Applies to Models PA-18A and PA-18A Restricted Category Aircraft With Dusting Venturi, Up to and Including Serial Number 18-3752. Compliance required not later than October 15, 1954. There have been several instances of excessive CO concentration in the cockpit when the dusting venturi is used. Such contamination has serious adverse effects upon pilot reaction. To prevent CO from entering the cockpit, a new trim plate should be installed and a new brake line cover plate should be placed over the brake line where the line enters the bottom of the fuselage. (Piper Service Letter No. 225, dated August 23, 1954, covers the same subject.)

Related safety bulletins advice on the same designs, not orders

2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2013-05-09CE-13-30 · IGNITION SYSTEM Toggle Style Magneto Switches on the Left Side Cabin Adjacent to the Pilot Seat
2013-02-06CE-13-14 · Fuselage Cracking at Aft Tail Post Weld Joint on Piper Model PA-18 (L-21) Airplanes
2005-03-24CE-03-02R1 ·
2004-09-24CE-04-91 ·

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/54-19-01.json · aircraft systems.