69-04-03 HUGHES: Amdt. 39-724. Applies to Model 269A, 269A-1, 269A-2, and 269B helicopters with P/N 269A6035 low tip speed tail rotor blade installed.
To insure continued airworthiness of the low tip speed tail rotor blade, prior to accumulation of 5000 hours' time in service, remove tail rotor blade, P/N 269A6035, marking it permanently and conspicuously to avoid its inadvertent return to service, and replace with a new or serviceable tail rotor blade, P/N 269A6035, having less than 5000 hours' time in service.
This amendment becomes effective March 22, 1969.