Boeing Defense, Space & Security

Vertical Lift

1

AH-64E System-Level Embedded Diagnostics (SLED)

RAM7 Conference November 2014

Derek S. FokSupportability EngineeringApache Programs

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RAM 7 Conference 2014

SLED-STAMP Integrated Product Team

SLED-STAMP is the result of a successful government and industry partnership.

SLEDSystem-Level Embedded Diagnostics Smart Tool 4

Aviation Maintenance Picture

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RAM 7 Conference 2014

Why SLED-STAMP?

• Problem = Lack of Maintenance Situational Awareness• Solution = Real Time “TOOL” = SLED-STAMP

o Maintenance planning (P4T2) based on real-time, over-the-air fault reportso Improved accuracy and consistency in fault reportingo Provides Maintenance Production Control with useful planning data

o Reduces troubleshooting time; potential increases in availability

Maintenance Concept of Operations (CONOPS) driven designApproved for public release. Reproduction of materials may be subject to copyright laws. Non-Technical / Administrative Data Only. Not subject to EAR or ITAR Export Regulations. 3

RAM 7 Conference 2014

What data does the SLED Report provide?

• Power-up date/time: for linking to ULLS-A and MDR data• Location data: critical for planning DART missions• Aircraft tail number: for identification of reporting aircraft• In-air status: shows aircraft as in-air/on the ground at time of message• SLED Results: Fault isolation to the line replaceable unit (LRU)• WCAs/Faults/Exceedances: Crew station data filtered for maintenance

relevant information (ie, suppressed COM and NAV advisories)

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RAM 7 Conference 2014

SLED Report Auto-Transmit Cases

Case SLED – Auto SLED – FlightTakeoff / Landing SLED – Mayday SLED - Manual

Trigger SLED Report data posted = New

Upon Aircraft Take-off/Landing

MAYDAY = Send(EMER XPNDR or Manual)

MAIL SLED Report = Operator Send

Checks

TI ready TI ready TI ready TI ready

Valid recipients loaded Valid recipients loaded Valid recipients loaded Valid recipients loaded

Aircraft is in the air Transition from ground-to-air or air-to-ground -  -

Auto-transmit enabled Auto-transmit enabled  -  -

SLED Report Recipients

Maintenance DART C2 OTHER

EXAMPLES

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RAM 7 Conference 2014

STAMP FOT&E Prototype Production Control Display

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RAM 7 Conference 2014

Mobile App

STAMP Future Interfaces

PC Dashboard

Active Report ViewApproved for public release. Reproduction of materials may be subject to copyright laws. Non-Technical / Administrative Data Only. Not subject to EAR or ITAR Export Regulations. 7

RAM 7 Conference 2014

Improvements to Maintenance Situational Awareness

• Better on-board datao Processing is on mission processors = no additional hardwareo Discriminates between primary and secondary fault indicationso Uses fault patterns to isolate faults to the line replaceable unit (LRU)o Fault patterns and fault correlations are based on a data table that can be

updated between aircraft software releases

• Improving the reported datao Reporting uses existing Apache BFT hardware for non-line of sight reportingo Reporting uses a data table based filter that prevents non-maintenance

warning, caution, advisory (WCA), and fault codes from causing reports

• New maintenance toolso STAMP ground software runs on standard Windows PCs, interfacing to

existing USG FBCB2/JBC-P hardwareo STAMP GUI interface uses SLED Reports to provide maintenance users with

near real-time information about where the aircraft is and what faults and WCAs the pilot is seeing

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RAM 7 Conference 2014

SLED future enhancements

Data analytics to support real-time, on-board fault isolation.

SLED is the on-ramp for future diagnostic and prognostic improvements, providing capabilities for real-time, on-board processing, storing, and reporting maintenance data.

SLED Mission Processor Architecture

Sensor upgrades to improve data quality and fidelity.

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