Guidelines for Time-Limited-Dispatch (Tld) Analysis for Electronic Engine Control Systems

Standard:
Revised:
  • 2005-01-28
 
  • HISTORICAL Access the latest revision: ARP5107B
Publisher:
  • SAE International
Pages:
128
Scope:

This SAE Aerospace Recommended Practice (ARP) provides methodologies and approaches which have been used for conducting and documenting the analyses associated with the application of Time Limited Dispatch (TLD) to the thrust control reliability of Full Authority Digital Electronic Control (FADEC) systems. The TLD concept is one wherein a redundant system is allowed to operate for a predetermined length of time with faults present in the redundant elements of the system, before repairs are required. This document includes the background of the development of TLD, the structure of TLD that was developed and implemented on present generation commercial transports, and the analysis methods used to validate the application of TLD on present day FADEC equipped aircraft. Although this document is specific to TLD analyses (for FADEC systems) of the loss of thrust control, the techniques and processes discussed in this document are considered applicable to other FADEC system failure effects or other systems, such as, thrust reverser, and propeller control systems, and overspeed protection systems.

Rationale:

The need for the revision is to describe the improvements and advances made in TLD analyses approaches.

History:
Standard Published Revision Status
ARP5107B 2006-11-15 Latest Revised
2005-01-28 Historical Revised
1997-06-01 Historical Issued
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$78.00
Add
Mail
$78.00
Members save up to 18% off list price.
Grade
If you are currently using this technical report:
Share
HTML for Linking to Page
Page URL

Related Items

Standard
1928-06-16
Standard
1928-06-16
Standard
1928-06-16
Standard
1928-06-16