49-06-04: Altitude Compensating Bellows
FAA order 49-06-04 is an airworthiness directive published June 17, 1950. The FAA's subject line: Altitude Compensating Bellows. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Aero Spacelines, Incorporated
- Models
- 377, 377MG, 377SGT
Dates and paperwork
- Published
- June 17, 1950
- 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 (295 characters)
49-06-04 BOEING: Applies to Model 377 Aircraft.
The 11 convolution type altitude compensating bellows, Bendix P/N 390935, shall be replaced with new bellows after each 100 hours of operation until the 9 convolution type Bendix P/N 391003 is available and has been installed in the carburetor.
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/49-06-04.json · aircraft systems.