AD 60-09-04

AD Final Rules - DRS_60-09-04.html
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AD Number:
60-09-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; VICKERS Models 745D and 810 Series Aircraft
Subject:
Main Landing Gear Bearing Channels
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Vickers-Armstrongs (Aircraft Limited)
Model:
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Superseded AD: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Superseded By: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: 60-09-04
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   60-09-04

SUBJECT HEADING:   Airworthiness Directives; VICKERS Models 745D and 810 Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
60-09-04 VICKERS: Amdt. 135 Part 507 Federal Register April 26, 1960. Applies to All Viscount Models 745D and 810 Series Aircraft.

Compliance required as indicated.

Due to cracks found in the flanges of the main undercarriage cross shaft bearing channels on the inboard and outboard sides of the rib at Station 131 on both wings, the following shall be accomplished:

(a) Aircraft which have accumulated 4,000 flights, or more, must be visually inspected, at intervals not to exceed 160 hours' time in service beginning with the effective date of this AD, for cracks in the bearing channels (P/N 70103-1515ND and -1516ND for 700 Series aircraft; P/N 81003- 1061ND and -1062ND for 810 Series aircraft) on the inboard side of the rib in the wheel bay area. Cracked bearing channels must be either repaired and reinforced in accordance with Vickers Mod. D.2866, Parts (A) and (C) for Model 745D's, FG.1513 Part (A) and (C) for Model 810's or replaced and reinforced in accordance with Mod. D.2866 Part (A) and FG.1513 Part (A). Details of crack limits on repairable channels are specified in the respective Modification Leaflets.

(b) If wheel bay channels are found cracked, the corresponding channels on the outboard side of the rib in the tank bay area must be either repaired and reinforced or replaced and reinforced at the same time as the inboard components.

(c) Not later than April 1, 1961, aircraft which have accumulated 4,000 flights or more must incorporate reinforced inboard and outboard bearing channels at rib Station 131 on both right and left wings in accordance with Vickers Mod. Bulletin D.2866 Part (a) for Model 745D or FG.1513 Part (A) for Model 810 Series, except that aircraft may remain in service on or after April 1, 1961, without the incorporation of the reinforcements provided the following is accomplished in addition to the provisions of (a).

(1) Aircraft must be inspected within the next 1,500 flights after April 1, 1961, and every 1,000 flights thereafter, for cracks in the bearing channels (P/N 70103-1515ND and -1516ND for 700 Series aircraft; P/N 81003-1061ND and -1062ND for 810 Series aircraft) on the outboard side of the rib in the tank bay area. Cracked bearing channels must be repaired and reinforced per (a).

(2) If tank bay channels are found cracked, the corresponding channels on the inboard side of the rib in the wheel bay area must be either repaired and reinforced or replaced and reinforced at the same time as the outboard components.

(d) The inspections in (a) and (c)(1) are not required after incorporation of the reinforcements.

(Vickers-Armstrongs PTL 211 and Mod. D.2866 for 700 Series aircraft and PTL 77 and Mod. FG. 1513 for 800/810 Series aircraft cover this subject.)

Revised February 28, 1961.

FOOTER: