Helicopter Weights Gone Wild: FAA Halts Tail-Smashing Risk
Published Date: 4/1/2026
Rule
Summary
If you own or fly a Bell Model 505 helicopter, listen up! The FAA found a problem where weights in the back could break loose and hit the tail rotor, which is super dangerous. Starting April 16, 2026, you can’t use those ballast weights anymore, and you’ll need to update your flight manual. This fix keeps everyone safe without costing a fortune, but don’t wait to make the change!
Analyzed Economic Effects
5 provisions identified: 1 benefits, 4 costs, 0 mixed.
No Special Flight Permits Allowed
Special flight permits under 14 CFR 21.197 and 21.199 are not allowed for these helicopters while this AD is in effect. You cannot ferry the helicopter under a special flight permit for compliance or inspection purposes.
Ballast Weights Banned in Aft Box
If you operate a Bell Model 505 helicopter (serial numbers 65011 and subsequent) with ballast box assembly P/N SLS-706-201-207 or SLS-706-201-207FM, you may not use ballast weights in the aft movable ballast box. This prohibition is effective April 16, 2026 (emergency AD effective March 6, 2026 for those who received notice).
Flight Manual Must Be Updated
Before further flight, the Limitations section of the rotorcraft flight manual (RFM) must be revised to state that ballast weights in the aft movable ballast box P/N SLS-706-201-207 or SLS-706-201-207FM are prohibited. Inserting a copy of this AD into the RFM satisfies the requirement.
Pilots Can Do the RFM Revision
An owner/operator who holds at least a private pilot certificate may revise the RFM and must record compliance in the helicopter maintenance records under 14 CFR 43.9(a) and 91.417(a)(2)(v). This is an allowed exception to standard maintenance rules.
Compliance Cost Estimate Provided
The FAA estimates the action (revising the RFM) will take 1 work-hour at $85 per helicopter, with no parts cost. The AD is estimated to affect 174 U.S.-registered helicopters for a total estimated cost on U.S. operators of $14,790.
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