Superseded. This AD was superseded by AD 2023-18-06. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-02-15
Effective 03/30/2021 · Published 02/23/2021
Airworthiness Directives; The Boeing Company Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747- 200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR series airplanes. This AD was prompted by reports of inboard foreflap departures from the airplane. This AD requires repetitive replacement of certain parts; a general visual inspection to determine production confi…