{% if plane == "0" %}

Hello, {{ user.username }}

<-- Please select a plane on the left to view the TLD data.

Honeywell is currently developing a product to allow engine downloads to be completed autonomously with the data uploaded wirelessly to the cloud where it will then be accessible remotely. The software that communicates to the ECU and does the download to a secure cloud server will be hosted on a small embedded computer located on the aircraft.

The data that will be captured and saved to the cloud falls into three distinct categories: Real time data collected while the A/C is in flight, snapshot data that is collected at various events and flight transitions, and fault data. Fault data can further be broken down into Time Limited Dispatch (TLD) faults and all otherfaults. The data file will include a CRC but additional mechanisms may be required to be carried with the data to ensure validity.

Engine control systems can be allowed to operate with faults for a specified period of time provided:

  • Resulting system operation and overall average reliability is adequate
  • Operating exposure, in this less redundant state, is appropriately limited

  • TLD is only concerned with faults that affect the loss of thrust control. TLD is specified in the following periods of time:
  • Short time (ST) – typically 125 hrs. before performing maintenance
  • Long time (LT) – typically 500 hrs. before performing maintenance
  • No Dispatch (ND) – fault must be corrected before next flight

  • Using the existing EEI tool, users can evaluate faults and determine the A/C TLD status and make the appropriate maintenance decisions. Because EEI is used to make maintenance decisions it has to be a qualified tool per the FAA software development process.

    Get more information by visiting our Team Website

    {% else %}

    Plane Data: {{ plane}}

    ECFR 1hour data dump Download Rawdata Chart View Table View Delete
    {% endif %}