AD 2017-25-02
Effective 12/21/2017 · Published 12/06/2017
Airworthiness Directives; Fokker Services B.V. Airplanes
Summary
We are adopting a new airworthiness directive (AD) for certain Fokker Services B.V. Model F28 Mark 1000, 2000, 3000, and 4000 airplanes. This AD requires contacting the FAA to obtain instructions for addressing the unsafe condition on these products, and doing the actions specified in those instructions. This AD was prompted by reports indicating that certain exit signs have a hydrogen isotope that decays over time,…