Superseded. This AD was superseded by AD 2014-04-07. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2003-05-03
Effective 04/17/2003 · Published 03/13/2003
Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters
Summary
This amendment adopts a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (Bell) model helicopters that requires preflight checking and repetitively inspecting for a crack in certain tailbooms that have not been redesigned and replacing the tailboom if a crack is found; modifying and re-identifying certain tailbooms and installing an improved horizontal stabilizer assembly; and assign…