AD 70-06-03

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AD Number:
70-06-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING Model 737 Series Airplanes
Subject:
Takeoff Warning System/Automatic Speed Brake Retraction System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
03/13/1970
Make:
The Boeing Company
Model:
737-100 Series | 737-200 Series | 737-200C Series | 737-300 Series | 737-400 Series | 737-500 Series...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Superseded AD: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Superseded By: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: 70-06-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-952

AD NUMBER:   70-06-03

SUBJECT HEADING:   BOEING Model 737 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective March 13, 1970.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
70-06-03 BOEING 737 SERIES AIRPLANES: Amdt. 39-952. Applies to Boeing 737 series listed in Boeing Service Bulletin 27-1031 dated 22 August 1969 and Revision 2 dated 27 January 1970, or later FAA-approved revisions.

Compliance required as indicated.

To provide for proper operation of the takeoff warning system and automatic speed brake retraction system at temperatures down to minus 65 degrees F, accomplish the following:

(a) Within 50 hours time in service after the effective date of this AD, unless already accomplished, install a placard in the cockpit in full view of the pilot to read: "DO NOT USE AUTOMATIC SPOILER DEPLOYMENT AT AMBIENT TEMPERATURES BELOW ZERO DEGREES FAHRENHEIT." This placard may be removed when Item (b) is accomplished.

(b) Within 1000 hours time in service after the effective date of this AD, unless previously accomplished, replace the takeoff warning switch actuating cam with a modified cam and accomplish the rigging procedures for proper alignment of the power lever knobs in the throttle control system with the warning switch in accordance with Boeing Service Bulletin 27- 1031 dated 2 August 1969, and Revision 2 dated 27 January 1970, or later FAA approved revisions, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

NOTE: The manufacturer is currently providing AFM revisions to operators relating to the characteristics of the warning system. Operators should incorporate this information in their manuals immediately upon receipt.

This amendment becomes effective on March 13, 1970.

FOOTER: