AD 64-02-02

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AD Number:
64-02-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING 707 and 720 Series Aircraft
Subject:
Autopilot
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
01/17/1964
Make:
The Boeing Company
Model:
707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...Show more
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Superseded AD: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Superseded By: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: 64-02-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   64-02-02

SUBJECT HEADING:   BOEING 707 and 720 Series Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective January 17, 1964.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   64-02-02 BOEING: Amdt 673 Part 507 Federal Register January 17, 1964. Applies to All Models 707 and 720 Series Aircraft With Boosted Rudder and Extended Vertical Fin Configuration.

Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished.

To eliminate a possible hazard to operational safety during autopilot coupled approaches accomplish either (1) or (2) of the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Western Region:

(1) Eliminate autopilot rudder crossfeed by the following circuit modification. In the RJ3 junction box disconnect wire C144A22 from terminal E18 and connect to terminal E17. In the autopilot adapter unit, Boeing P/N 10-3056-2 or Eclipse-Pioneer P/N 15236-2A1 loosen the locking nut and turn shaft of R5 potentiometer to zero setting. Conduct a continuity check between pins D and E. A reading which indicates 5 ohms or less must be obtained.

(Boeing Service Bulletin 1797 covers this same subject.)

(2) Limit rudder crossfeed by the following circuit modification. Insert a 5600 ohm, one half watt 5 percent resistor sleeved in No. 4 plastic tubing in the circuit from terminal E18 of junction box RJ3 to terminal (E) of connector RD921 by connecting one end of the resistor to terminal E18 and the other end to a new standoff terminal and moving wires C144B22 from terminal E18 to the new standoff terminal. Insert two Transitron No. SG22 diodes paralleled in opposite polarity and sleeved in No. 11 plastic tubing between terminals E17 and E18 of junction box RJ3. In the autopilot adapter unit, Boeing P/N 10-3056-2 or Eclipse-Pioneer P/N 15236-2A1 loosen the locking nut and turn shaft of R5 potentiometer to a setting of 10.

(Boeing Figure 1, CDP-150, page 3, revised September 9, 1963, covers this same subject.)

This supersedes AD 63-05-01.

This directive effective January 17, 1964.



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