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STC SH173WE

Current · Issued · Aircraft · Rotorcraft · Rev 11/11/1974 · FAA STC database

Installation of derated Lycoming TVO-435-B1A or TVO-435-B1B engine in lieu of TVO-435-A1A engine using existing TVO-435-A1A installation components. View PDF on drs.faa.gov ↗

The STC PDF is authoritative: installation instructions, ICA requirements and limitations.

Applicable aircraft (1)

Certification basis — 14 CFR

Specific sections

  • Sec. 111
  • Sec. 113
  • Sec. 115
  • Sec. 117
  • Sec. 119
  • Sec. 120