AD 68-01-02

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AD Number:
68-01-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; VICKERS Models 744, 745D, and 810 Series Airplanes
Subject:
Aileron Control System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/08/1968
Make:
Vickers-Armstrongs (Aircraft Limited)
Model:
Viscount 744 | Viscount 745D | Viscount 810
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Superseded AD: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Superseded By: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: 68-01-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-540

AD NUMBER:   68-01-02

SUBJECT HEADING:   Airworthiness Directives; VICKERS Models 744, 745D, and 810 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 8, 1968.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
68-01-02 VICKERS: Amendment 39-540. Applies to Viscount Models 744, 745D, and 810 Series airplane

Compliance required as indicated unless already accomplished.

(a) For airplanes with 12,500 or more hours' time in service on the effective date of this AD

(1) Comply with paragraph (c) and (d) within the next 250 hours' time in service, and thereafter comply with paragraph (c) at intervals not to exceed 500 hours' time in service from the last inspection performed in accordance with either paragraph (c) or (e); and

(2) Comply with paragraph (e) within the next 2,750 hours' time in service, and thereafter at intervals not to exceed 3,000 hours' time in service.

(b) For airplanes with less than 12,500 hours' time in service on the effective date of this AD

(1) Comply with paragraphs (c) and (d) before the accumulation of 12,750 hours' time in service, and thereafter comply with paragraph (c) at intervals not to exceed 500 hours' time in service from the last inspection performed in accordance with either paragraph (c) or (e); and

(2) Comply with paragraph (e) before the accumulation of 15,250 hours' time in service and thereafter at intervals not to exceed 3,000 hours' time in service.

(c) Visually inspect the full length of the wear pattern made by the three rollers of the guide assembly at wing station 387 on both the left and right aileron control rod tubes, for surface cracks and holes, in accordance with British Aircraft Corporation (BAC) Preliminary Technical Leaflets (PTLs) No. 266 (700 Series) and No. 129 (810 Series), Issue 1, dated May 30, 1967, or later ARB-approved issue, or an FAA-approved equivalent.

(d) Check the roller assembly for correct adjustment between the control rod tube and the third roller, to provide a minimum clearance of .005 inches and a maximum clearance of .010 inches at the least worn part of the wear pattern, in accordance with BAC PTLs No. 266 (700 Series) and No. 129 (810 Series), Issue 1, dated May 30, 1967, or later ARB-approved issue, or an FAA-approved equivalent.

(e) Remove the aileron control rod tube located at wing station 387, inspect for cracks using dye penetrant, or an FAA-approved equivalent, and measure the outside diameter across all sections of the wear pattern, in accordance with BAC PTLs No. 266 (700 Series) and No. 129 (810 Series), Issue 1, dated May 30, 1967, or later ARB-approved issue, or an FAA- approved equivalent.

(f) If cracks or holes are detected or the tube outside diameter across any section of the wear pattern is less than 1.11 inches in diameter during the inspections required by paragraphs (c) and (e), replace the aileron rod control tube before further flight with a new tube of the same part number. When 12,500 hours' time in service have accumulated on the new replacement tube, begin inspecting the tube in accordance with the inspection requirements of paragraph (a).

(g) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Certification Staff, FAA, Europe, Africa and Middle East Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator.

This amendment becomes effective February 8, 1968.

FOOTER: