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FAA orders · airworthiness directive · current

54-06-01: Kiddie CO2 Discharge Valve

FAA order 54-06-01 is an airworthiness directive. The FAA's subject line: Kiddie CO2 Discharge Valve. System: engine.

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 (784 characters)
54-06-01 DOUGLAS: Applies to Models DC-6, DC-6A and DC-6B Series Aircraft. \n\n\tCompliance required as soon as practicable but not later than July 1, 1954, for DC-6A and DC-6B aircraft, and November 1, 1954, for DC-6 aircraft. \n\n\tTo eliminate possible inadvertent discharge of CO2 into cabin heater or hydraulic accessories compartment accompanied by operation of cabin master depressurization control (or closing of the control valve on early DC-6 aircraft), when discharging CO2 into a nacelle, rework the two Kidde 3/4-inch stop valves P/N 870003 by replacing spring P/N 201496 with heavier spring P/N 30568. The reworked valve should be reidentified as P/N 871107. \n\n\t(Douglas General Service Letter No. DC-6 No. 176 revised December 31, 1953, also covers this 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/54-06-01.json · aircraft systems.