AD 67-25-02 R3

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AD Number:
67-25-02 R3
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AEROSPACE Model BAC 1-11 200 and 400 Series Airplanes
Subject:
Flap Drive Screw Jacks
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/17/1985
Make:
Airbus SAS
Model:
BAC 1-11 200 Series | BAC 1-11 400 Series
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Superseded AD: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Superseded By: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: 67-25-02 R3
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5059

AD NUMBER:   67-25-02 R3

SUBJECT HEADING:   Airworthiness Directives; BRITISH AEROSPACE Model BAC 1-11 200 and 400 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 17, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
67-25-02 R3 BRITISH AEROSPACE: Amendment 39-477 as amended by Amendments 39- 485 and Amendment 39-909 is further amended by Amendment 39-5059. Applies to BAC 1-11 200 and 400 series airplanes, certificated in all categories. Compliance required as indicated unless previously accomplished. To prevent serious deterioration and failure of the flap drive screwjacks, accomplish the following:

A. Perform a visual inspection of the flap drive screwjacks for evidence of unusual wear in accordance with paragraph 2.1.1 of British Aerospace BAC 1-11 Alert Service Bulletin 27-A-PM2992, Issue 4, dated November 30, 1979, prior to the accumulation of 750 landings or 800 hours time in service from the last inspection, whichever occurs earlier. Repeat the inspection at intervals not to exceed 800 hours time in service thereafter.

B. Measure the nut-to-screw backlash in accordance with paragraph 2.2 of the service bulletin prior to the accumulation of 3,000 landings or 4,800 hours time in service from the last check, whichever occurs earlier, and thereafter at intervals not to exceed 4800 hours time in service or 3000 landings, whichever occurs first. If the nut-to-screw backlash exceeds 0.03- inch, the screwjack assembly must be replaced with serviceable parts.

C. Incorporation of modification PM2992, which introduces a new seal for the ball nut, constitutes terminating action for this AD.

D. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

E. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.

F. Upon request of an operator, an FAA Maintenance Inspector, subject to prior approval of the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, may adjust the inspection times specified in this AD to permit compliance at an established inspection period of that operator, if the request contains substantiating data to justify the increase for that operator.

Amendment 39-477 became effective September 9, 1967.

Amendment 39-485 became effective September 20, 1967.

Amendment 39-909 became effective January 11, 1970.

This Amendment 39-5059 becomes effective June 17, 1985.


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