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FAA orders · airworthiness directive · current

46-42-01: Cabin Heater Valve Replacement

FAA order 46-42-01 is an airworthiness directive. The FAA's subject line: Cabin Heater Valve Replacement. System: engine.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Swift Museum Foundation, Inc.
Models
GC-1A, GC-1B

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 (481 characters)
46-42-01 GLOBE: (Was Mandatory Note 4 of AD-766-5.) Applies to Models GC-1A, GC-1B Aircraft Serial Numbers 3 to 228 Inclusive. Compliance required prior to December 1, 1946. Replace the aluminum alloy cabin heater valve assembly with one constructed completely of firewall material equivalent to Globe Valve Assembly, P/N 11-440-3623. This will provide a complete firewall of firewall material. (Globe Customer Service Maintenance Bulletin No. 4 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/46-42-01.json · aircraft systems.