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Atlas / TCDS / 1E4

FAA · Type Certificate Data Sheet

TCDS 1E4

Lycoming Engines

Historical Engine Rev 21 12/17/2003 drs.faa.gov ↗

Models covered (83)

Special Airworthiness Information Bulletins (4)

Advisory bulletins on these airframes. Not mandatory like ADs — but operators tracking AD compliance often miss the SAIB on the same component.

Certification basis — 14 CFR

Specific sections

  • Sec. 13.29
  • Sec. 17.19
  • Sec. 17.25
  • Sec. 17.60

Former holders

  • Textron Lycoming

The TCDS PDF on drs.faa.gov is the authoritative document for design-as-certified weight limits, performance, equipment, AD compliance times, and operating limitations. Open on drs.faa.gov ↗ DRS frequently breaks — when it does, the fleet view above and the cross-links below are usually what you actually need.