Tail Assembly Modification


Heli-One performs the Leonardo AW139 Tail Assembly modification in accordance with Service Bulletin 139-419. This modification also extends the lifespan of the tailboom to 78,600 landing cycles. In-house tooling and dedicated repair station improve efficiency and lower repair time. 


  • Part lifespan extended to 78,600 landing cycles
  • Reduces overall lifespan maintenance of part
  • In-house tooling and dedicated repair station keep TAT condensed
  • EASA approval

Modification Details 

  • Tail Structure Assembly Improvement
  • Titanium fittings
  • New longerons
  • New fin assembly reinforcements

Contact Us for More Info

AW139 Tail Assembly Modification
Tail Assembly
Tail Assembly
Tail Assembly
Tail Assembly
Part Number

In the News:


Heli-One Poland Approved to Perform AW139 Tail Assembly Modification

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