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Atlas/ TSOA/ TSO-C55a

FAA · TSO Authorization

TSO-C55a

FUEL AND OIL QUANTITY INSTRUMENTS

Current Issued 06/24/2021 PDF ↗

What is a TSOA?

A Technical Standard Order Authorization is the FAA's permit for a manufacturer to produce equipment that meets a specific TSO standard (avionics, seats, parachutes, GPS receivers, etc.). The TSO sets the performance requirement; the TSOA is the holder's authorization to deliver compliant parts.

Authorized parts (8)

  • Signal Conditioner Unit

    P/N 0U418-2077-(###)

  • Fuel Indicator

    P/N 0U418-1062-(###)

  • Bracket, Adapter

    P/N 0U418-4016-(###)

  • Signal Conditioner Unit, CA Q400 HLS

    0U418-2081-(###)

  • Fuel Probe, CA Q400

    0U418-3106-(###)

  • Fuel Probe, CA Q400 HLS

    0U418-3107-(###)

  • Signal Condition Unit, MD 369 Series & 500N

    P/N OU418-2087-400

  • Fuel Probe, 369 Series & 500N

    P/N OU418-3156-000