Airworthiness Directive · Amendment 39-15323 · Flight controls
EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT Airplanes
This AD applies to all EMBRAER Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes; certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Within 36 months after the effective date of this AD, unless already done, do the following actions.
(1) Replace the current Stall Warning Computers with new improved ones in accordance with detailed instructions and procedures described in the EMBRAER Service Bulletin 120-27-0092, Revision 01, dated December 29, 2006.
(2) Before installing the improved Stall Warning Computers, accomplish the detailed instructions and procedures described in the EMBRAER Service Bulletin 120-27-0091, Change 02, dated September 29, 2003.
(3) As of 36 months after the effective date of this AD, no person may install a Stall Warning Computer; part number C-81806-1 or -2, Mod. A, or C-81806-3, on any airplane.
Note: This AD differs from the MCAI and/or service information as follows: No differences.
