After receiving a report of undersized fasteners possibly being used during the construction of some Piper M600s, the FAA on Tuesday issued an airworthiness directive to address what it called an “unsafe condition.” The AD, effective July 25, 2018, is aimed at M600s serial numbers 4698004 thru 4698041.
FAA Issues Airworthiness Directive for Piper’s M600
Key Takeaways:
- The FAA issued an Airworthiness Directive (AD) for specific Piper M600s (serial numbers 4698004-4698041) due to concerns about potentially undersized fasteners in the cockpit canopy, posing a risk of fuselage structural failure or loss of cabin pressure.
- The AD requires an inspection, potential repair kit installation, and temporary measures including a speed limitation of 230 knots calibrated airspeed and a placard until compliance is assured.
- While inspection and repair costs are estimated to be significant, Piper Aircraft is fully covering all associated expenses, and 22 of the 38 affected airplanes have already complied.
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