AD 54-06-01

AD Final Rules - DRS_54-06-01.html
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AD Number:
54-06-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS DC-6, DC-6A and DC-6B Series Aircraft
Subject:
Kiddie CO2 Discharge Valve
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
The Boeing Company
Model:
DC-6 | DC-6A | DC-6B
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 54-06-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   54-06-01

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS DC-6, DC-6A and DC-6B Series Aircraft



ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
54-06-01 DOUGLAS: Applies to Models DC-6, DC-6A and DC-6B Series Aircraft.

Compliance 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.

To 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.

(Douglas General Service Letter No. DC-6 No. 176 revised December 31, 1953, also covers this subject.)


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