Federal Register #2026-14109

FAA Mandates Maintenance Program Update for Textron Model 408 Airplanes

The Federal Aviation Administration (FAA), under the Department of Transportation, has issued a new airworthiness directive (AD) for Textron Aviation Inc. Model 408 airplanes. - Government Buyer: - Federal Aviation Administration (FAA) - OEM Highlight: - Textron Aviation Inc. is the sole OEM referenced - Products/Services Requested: - No physical products or parts are being procured - Service requirement: Revise the Airworthiness Limitations Section (ALS) of the aircraft maintenance manual (AMM) or instructions for continued airworthiness (ICA) - Update the approved maintenance or inspection program for Model 408 airplanes, serial numbers 0012 through 0051 - Incorporate detailed inspections for horizontal and vertical stabilizer spars to detect cracks - Notable Requirements: - Compliance is mandatory for 28 U.S.-registered Textron Model 408 aircraft - Inspections must be added to maintenance programs to address potential cracks that could affect structural integrity and flight safety - Compliance must occur within 150 flight hours or 12 months, whichever comes first - No alternative inspection intervals are permitted unless specifically approved by the FAA

Description

The FAA is adopting a new airworthiness directive (AD) for certain Textron Aviation Inc., Model 408 airplanes. This AD was prompted by the manufacturer's revision of the aircraft maintenance manual (AMM) to add a detailed inspection for the horizontal stabilizer spar and change the airplane serial effectivity for the vertical stabilizer spar detailed inspection. The AD requires revising the Airworthiness Limitations Section (ALS) of the existing AMM or instructions for continued airworthiness (ICA) and the existing approved maintenance or inspection program. The directive addresses an unsafe condition that could result in reduced structural integrity or controllability of the airplane, potentially leading to loss of control.

View original listing