EASA SIB CE-12-33
Mitsubishi Heavy Industries MU-2B Aeroplanes — Nose Landing Gear Retraction/Extension System
Summary
The Special Airworthiness Information Bulletin SAIB CE-12-33 is an FAA informational bulletin addressing the nose landing gear retraction/extension system on Mitsubishi Heavy Industries MU-2B series aircraft. It notifies operators of clarifications made to maintenance documentation regarding the correct orientation of the nose landing gear drag strut down-lock link. This bulletin applies to all MU-2B models listed in Type Certificate Data Sheets A2PC and A10SW.
What Changed
SAIB CE-12-33 highlights improvements to the maintenance manual, maintenance requirements manual, and parts catalog for the MU-2B series to clarify the proper installation orientation of the nose landing gear drag strut down-lock link. It also references Mitsubishi Heavy Industries Service News No. 122/32-010, which emphasizes correct installation and recommends inspection of the down-lock links at the next maintenance opportunity.
Why It Matters
Proper orientation of the nose landing gear drag strut down-lock link is critical to prevent bearing failure and potential nose gear collapse during landing. This information helps operators and maintenance personnel avoid incorrect installations that could compromise aircraft safety. Ensuring compliance with the updated guidance supports continued airworthiness and operational safety of MU-2B aircraft.
What To Do
Operators of Mitsubishi MU-2B aircraft should inspect the nose landing gear drag strut down-lock links following the procedures outlined in Mitsubishi Heavy Industries Service News No. 122/32-010 dated January 6, 2012, at the next maintenance opportunity. No mandatory compliance deadline is specified, but timely inspection is recommended to mitigate risk.