67-02-04 DOWTY ROTOL: Amdt. 39-322 as amended by Amendment 39-1014. Applies to Accessory Gear Boxes (c) PTG. 14/6A and B installed on Hawker Siddeley Argosy Type AW650 Series 101 Airplanes, (c) PTG. 14/8 Installed on Grumman Model G-159 Series Airplanes, and (c) PTG. 14/1 and 14/2B Installed on Vickers Viscount Model 810 Airplanes.
Compliance required at next gear box overhaul after the effective date of this AD, unless already accomplished.
To prevent fatigue failure of the tunnel drive shaft and excessive wear on the tunnel shaft serrations of airplanes specified in Column 1 of the following table equipped with accessory gear boxes with type number specified in Column 2 and premodification GB2145 tunnel shaft assemblies with part number specified in Column 3, replace each tunnel shaft assembly with one of applicable assemblies with part number specified in Column 4 modified in accordance with modification number specified in Column 5.
(Col 1)
(Col 2)
(Col 3)
(Col 4)
(Col 5)
Airplane Model
Accessory Gear Box Number
Pre Modification GB2145
Part Number
Replacement Part Number
Modification Number
Argosy
(c)PTG.14/6A&B
6.0207.2023
6.0207.2029
GB2145
AW 650
6.0207.2049
GB2145
Series 101
6.0207.2054
GB2300
6.0207.2059
GB2300
6.0207.2069
GB2320
6.0207.2125
GB2371
Grumman
(c)PTG.14/8
6.0207.2023
6.0207.2029
GB2145
G-159
6.0207.2049
GB2145
6.0207.2054
GB2300
6.0207.2059
GB2300
6.0207.2069
GB2320
6.0207.2125
GB2371
Vickers
(c)PTG.14/2B
6.0207.2023
6.0207.2029
GB2145
Viscount 810
6.0207.2049
GB2145
6.0207.2059
GB2300
6.0207.2069
GB2320
6.0207.2125
GB2371
(c)PTG.14/1
6.0207.2024
6.0207.2030
GB2145
6.0207.2050
GB2145
6.0207.2055
GB2300
6.0207.2060
GB2300
6.0207.2070
GB2320
6.0207.2126
GB2371
(Dowty Rotol Service Bulletins Nos. 83-297, Revision 2; 83-331,Revision 1; and 83-338 pertain to this subject.)
Amendment 39-322 effective January 19, 1967.
This Amendment (39-1014) becomes effective June 23, 1970.