47-49-03 LOCKHEED: (Was Mandatory Note 36 of AD-763-3.) Applies to All Model 49 Serials Up to and Including 2080, Except 2033, 2058 and 2071 Through 2075.
Compliance required at next engine change period.
Inspect all attachments of rudders to torque tube flanges for evidence of stripped threads or elongated holes. (This does not require removal of rudders.) When such evidences are found, redrill holes to next larger size and/or install new nuts as required.
(LAC Service Bulletin 49/SB-256 covers this same subject.)