47-42-16: Combustion Chamber Inspection
FAA order 47-42-16 is an airworthiness directive. The FAA's subject line: Combustion Chamber Inspection. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- The Boeing Company
- Models
- DC-6, DC-6A, DC-6B
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 (400 characters)
47-42-16 DOUGLAS: (Was Service Note 2 of AD-781-1.) Applies to DC-6 Aircraft. \n\nRemove combustion chamber of surface combustion Model 63A66 thermal anti-icing heaters and Model A63A68 cabin and thermal anti-icing heaters for inspection and pressure test at each 500-hour interval of heater operation. Also carefully inspect downstream end of the combustion chambers at each periodic inspection.
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/47-42-16.json · aircraft systems.