Avionic & Defence Hardware Systems Engineer

Flight management computer update for an in-service aircraft. Was responsible for definition and compilation of the
Interface Control Document. Responsibilities included:
* Clarification and documentation of connected systems & interfaces.
* Implementation of test & debug interface.
* Definition of ARINC 600 connector cavity inserts and layouts for fibre optic, octonet, triax and crimp contacts.
* Defining and clarifying electrical characteristics for:
o Discrete, databus and analogue / digital video signals required and corresponding data rates, voltage &
current input / output levels, impedance and resistance characteristics and signal frequencies etc.
o Bonding & grounding implementation.
* Clarification of lightning protection methods and short circuit protection between connectors.
* Selection of appropriate cable types for cavity insert contacts and documentation of the cable characteristics.
* Signal naming in consultation with other departments.
* Mechanical characteristics clarification for an ARINC 600 style housing to include thermal management, materials
used, connector insertion forces, vibration, securing methods and definition of a mechanical keyway code.
* Team, inter-departmental and Customer liaison. Investigation, consultation & implementation of document peer
review findings.
* Resolution of JIRA snags.
Standards used: MIL-STD-810 / 1521 / 1553, DO-160G, ARINC 818 / 615 / 600 / 429, IEEE 802.3,
RS-232 / 422 / 485, STANAG 3350.
Software used: Jira, Jama, ALM, Tortoise SVN, MS Office, MS Visio, Google Drive, PDF

Satellite communication antennae for aircraft OEM and retrofit solutions. Responsible for supplying subject matter
expertise for aircraft environmental tests related to RTCA DO-160G. Other responsibilities included:
* Responsible for reviewing a customer hardware specification to identify any commonalities with an existing Qest
System. Requirements clarified and a simplified requirement tracking system established.
* Production of a technical overview presentation for a more complex antenna system component than is currently
installed. Identification of possible electrical problems, identification of EMI noise sources, suggestions on how to
manage EMC issues, grounding concepts and protection of data lines from noise sources. Awareness of endcustomer
build and material requirements that the supplier must adhere to.
* Production of a technical overview presentation for aircraft lightning transient induced effects (DO-160G §22) in
order to ensure that the customer requirements were understood, and a concise and cost-effective antenna test
campaign could be initiated.
* Production of an Electronic Components Management Plan in accordance with the guidelines of IEC
documentation.
* Calculation of MTBF (via Excel) for complex microprocessor / FPGA based circuit boards. The calculations were
based on the MIL-HDBK-217. Additional in depth understanding of general electronics and EMI/EMC ESD
techniques.
Standards used: DO-160, ISO 2669, IEC 62239, MIL-HDBK-217F
Software used: MS Office, PDF

Responsible for EMC, HIRF and Lightning Direct Effects (LDE) and Lightning Indirect Effects (LIE) (ATA 17) issues for
the civil helicopter avionics installation.
Responsibilities included:
* Reviews of Suppliers qualification documentation to ensure that all Airbus Helicopters standards were met.
* Compilation of ATA17 Certification Cover Sheets / Compliance Documents (for avionics modifications) that are in
accordance with the requirements of EASA Part 21, Subpart J.
* Updating of the Bonding Test Specification that is used for Final Assembly Line activities to reflect current avionic
fitment options.
* Providing specialist support as Show Compliance Engineer (SCE) to System Design Responsible (SDR) and
Certification Verification Engineers (CVE)
* Review of MIL-STD documentation to ensure that it conformed to DO-160 standard and the identification of any
discrepancies thereof.
Standards used: DO-160, MIL-STD-461, Airbus Helicopters SPX Environmental / EMC.
Software used: SAP (basic), Nectar, BFlow (basic).

Responsible as the Airbus On-Site representative for Rockwell-Collins and their range of LED cabin illumination
systems (ATA 33) for the A380, A330neo and A320 aircraft series. Additional responsibilities included:
* DOORS 9.5 Module creation(s) / population / linking with appropriate content from Customer specification
requirement through to testable requirement and result.
* Review(s) of Qualification documentation with suggestions for improvement.
* Review of Airbus Purchaser Technical Specifications with a view to identifying & clarifying any ambiguous
requirements.
* Review of contractual documentation (Supplier response to Customer Technical Specifications).
* Acting as the focal point for Airbus queries.
* Familiarity with photometric principles.
* Installation of upgraded lighting units within the Airbus A380 Mock-Up facility.
* Reading and interpretation of mechanical & electrical drawings and electronic circuit diagrams.
* Creation of Component Technical Specification documents.
* Creation of Technical Co-ordination Memos & Technical Reports.
* Participated in bid process for Airbus Single Aisle aircraft series cabin illumination upgrade.
* Preparation of Test Procedures for Boeing Aircraft external lighting.

Responsible for the creation of qualification documentation for an airborne safety Satcom system (Inmarsat Classes 4,
6 & 7 - ATA 23) based on the ARINC 781 standard. The Satcom system provides Inmarsat SwiftBroadband Safety
services via its Broadband Global Area Network (BGAN). The documentation included:
* Qualification Test Plan.
* Individual Qualification Test Procedures for all applicable environmental, electrical and EMC aspects of the DO-
160G and Airbus requirements.
* Dielectric Isolation, Insulation & Bonding Resistance testing methodology and implementation.
* Acceptance Test Specifications & Procedures.
* Authoring of corporate standard documentation and technical reports.
Other activities included:
* Providing support and guidance for the completion of a corporate environmental test standard.
* Providing support to the environmental and EMC test team.
* Co-authoring of the Electro Magnetic Hazard (EMH) Control Plan.
* Co-authoring of the System Design Description document.
* Updating of the System Validation & Verification Plan documentation.
* Validation & Verification of System Requirements documentation.
* Familiarity with SW high level requirements and the creation of test cases for automated testing of the SW via
Seapine requirements tracking tool.
* Participating in OEM meetings as a subject matter expert.
* Aided less-experienced colleagues to ensure a clear understanding of OEM documentation and requirements.
* Standards used DO-262, ARINC 429 / 600 / 781, RS-232 / 422.

Provided support to Airbus Bremen Smoke Detection (ATA 26) Design Office for in-service occurrences of smoke
detection alerts for the A340 Smoke Detector Control Unit (SDCU) and the Single Aisle series Smoke Detector
Function (SDF). Activities included:
* Provision of daily queries support.
* Aircraft troubleshooting support.
* Supplier liaison.
* Analysis of Post Flight Report, fault and troubleshooting data.
* In-Service Occurrence Report compilation.

* Supplier qualification documentation reviews and comment sheet completion for the Load Master Controls (LMC)
and Guides and Restraints System (GRS) (ATA 25). All documents were checked in accordance to
ABD0100/0200, DO-160, DO-254, MIL-STD-810, ISO 2669 and other appropriate standards.
* Requirement(s) validation & verification activities via DOORS.
* Purchaser Technical Specification preparation and writing with DOORS requirements-based engineering methods
for the control and communication interface units that are part of the GRS.
* Maintenance of System Interface Documents (via DOORS) that provided the technical link (data bus and
functional data exchange) between the Loadmaster Control system and the GRS.
* Environmental conditions specialist.
* Familiarity with CAN Bus.
* Provided technical support for Airbus at Suppliers premises.
* Familiarity with the Airbus equipment modification process.
* Responsible for 'Request for Test' and Ground Test Report documentation that would be used to ensure. Safety
of Flight status was achieved for the Cargo Handling and Aerial Delivery Systems of the A400M.

* A380 Slats/ Flaps Control Computer: Manual reset investigation and report writing (including schematics).
* A350 Flight Control Unit (ATA 22) qualification documentation: Preparation and update of existing documents to
include test plans and test reports for acceptance by Airbus and Thales.
* Preparation of documents for specific Airbus requirements, inter-company communications (Co-ordination
Memos), modification proposals, test monitoring equipment description and associated user manual.
* Documents prepared in accordance to DO-160, ISO 2669, MIL-STD-810 and Airbus Directives (ABD) etc.
* Participated in EMC and environmental tests, unit software downloads and memory dumps.
* Familiarity with SAP and IBM Rational ClearQuest

* Exposure to writing of Python scripts for automated test equipment test runs.
* Writing of company standard documentation for electronic components de-rating.
* Modification proposals, implementation and documentation.
* Modification, debugging and repair of prototype PCB's.
* Electronic component thermal investigation and report writing. Replacement parts research.
* DOORS requirements validation & verification. Experience of Serena Dimensions.
* Test procedure writing / updating with reference to DO-160 and MIL-STD-810 documentation.
* Highly Accelerated Life Testing (HALT) and EMC testing with associated report actions.
* Familiarity with digital signals monitoring equipment (DMSU), ARINC 429, CAN and serial data link protocols.
* Environmental testing (vibration & temperature etc.).
* Hardware in the loop testing.

* Total life-cycle development of Cabin Intercommunication Data System (CIDS, ATA 23 & 44) components.
* Component requirements definition.
* Responsible for liaising with suppliers to resolve problems and co-ordinating timescales.
* Creation of component specification and installation documents for the CIDS components using DOORS, MS
Word, Visio and Adobe Acrobat.
* Review of functional & qualification environmental tests to ensure all requirements have been met and tested.
* Review of supplier qualification documents to ensure that all appropriate Airbus Directives (ABD0100 /0200), CRI,
ARINC 600 and RTCA DO-160, DO-254 & Airworthiness (EASA, JAR/FAR) requirements have been met.
* Familiarity with RTCA DO-178 and DO-214 documents plus Ethernet, RS-485, LVDS, CAN and AFDX data
networks.

* Writing in-depth test schedules for the audio sections of the Tiger intercom, HF, UHF/VHF & VHF-FM.
* Writing of specifications for the intercom system and radio antennas (V/UHF, VHF-FM and IFF).
* Generation of Test Reports for HF antenna validation.

* CAA ground V&V testing of the fuel system (ATA 28) fitted to the Airbus A340-500/600 aircraft.
* Generation of associated Test Reports, resolving of in-service aircraft fuel system problems.
* Familiarity with ARINC 429 data bus.

* Systems testing (including 1553 data bus) for Tornado GR4/4A avionics upgrade.
* Laser Inertial Navigation System test specification writing.
* Recorded signals (ADASS) analysis.

* Development of Synchronous Digital Hierarchy (SDH) equipment for the telecommunications industry.
* SMT circuit board repairs and modifications.
* Testing and debugging of microcontroller, FPGA & CPLD circuits.
* Fibre optic transmission.

* Automated and manual testing of software upgrades for network devices.
* Upgrade of test specifications for software agent upgrades for network devices.

* Maintenance, test and integration of a complex submarine sonar system.
* Logistics management and asset tracking.
* Instigation of engineering procedures and report writing.

* Test, modification, repair and calibration of a variety of complex avionics (including Mil Std 1553 data bus),
display systems and associated test equipment used on military aircraft.
* Environmental testing of aircraft electronics hardware and specialised test equipment for the Tornado.
* Co-ordination, procurement, commissioning and installation of Eurofighter avionics system test benches/rigs.
* Liaison with internal and external customers to resolve problems.
* Test procedure validation.
* Modification of existing circuit designs to conform to aircraft upgrades.
* Investigation of design faults reporting to the design authority with possible solutions etc.

* Service and repair of computer-controlled printing machines used in surface mount technology (SMT).
* Data communications, motor control, optoelectronic sensors, vision systems and power supplies.

* Testing, modification and debugging of printed circuit boards to component level of various control,
communications, radar and navigation systems.
* Helicopter flight line avionics maintenance and repair (Westland Puma / Sea King). Servicing of multi-engine
transport aircraft (Lockheed Hercules) and fast jets (McDonnell F4 Phantom).
* Ceremonial & security duties. Proficient handling of standard British military firearms.

* Installation & maintenance of telephones and PBX equipment in customers premises.
* Underground cable installation and jointing.
* Strowger and Crossbar telephone exchange installation and maintenance.
* Teleprinter maintenance.