General Visual Inspections, Detailed Inspections and EWIS Inspections

In recent years, requirements to address the in service training of personnel who are required to perform either Electrical Wiring Interconnect System Inspection (EWIS) inspection, or EWIS Maintenance.

Sofema Aviation Services offer a 3 Day in company Training to allow you to manage and deliver your own EWIS training to ensure compliance with the requirements of AMC 20-22. please contact SAS at This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Amongst the training requirements it is necessary to make Maintenance personnel aware of the  need to ensure that aircraft EWIS should be maintained with the same level of intensity as any other system in the aircraft.

They also need to recognize that visual inspection of wiring has inherent limitations. Small defects such as breached or cracked insulations, especially in small gauge wire may not always be apparent. Changes have been made in the understanding of what constitutes a General Visual Inspection which is detailed here.

Effective wiring maintenance to deliver the required EWIS standard  combines visual inspection techniques with improved wiring maintenance practices and training.  To be effective this training is an ongoing and recurrent requirement  most effective when it is  delivered in the work place.

A  new phrase has been developed to promote, the correct attitude to managing the EWIS environment ,  EWIS maintenance practices should contain a "protect, clean as you go" housekeeping philosophy. This requires,  to be taken to protect wire bundles and connectors during work, and to ensure that all  swarf, shavings, debris and  other contamination are cleaned up after work is completed.

To  consider the Term GVI when associated with Electrical Wiring Interconnect Systems General Visual Inspection (GVI):A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to enhance visual access to all exposed surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight or droplight and may require removal or opening of access panels or doors. Stands, ladders or platforms may be required to gain proximity to the area being checked.

A Stand-alone General Visual Inspection (GVI): A GVI which is not performed as part of a zonal inspection. Even in cases where the interval coincides with the zonal inspection, the stand-alone GVI shall remain an independent step within the work card. The Stand Alone GVI becomes an essential element of the EWIS Inspection process for aircraft which are not managed in accordance with the requirements of MSG3.

A Detailed Inspection (DET): In respect of EWIS on occasion an intensive examination of wiring or other installation may be required it is a specific requirement focused on an item, installation, or assembly to detect damage, failure or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirrors, magnifying lenses or other means may be necessary. Surface cleaning and elaborate access procedures may be required.

AMC 20-22 makes It very clear as to the requirements which are to be complied with to ensure the organisation remains in conformity with EASA regulatory requirements. Ultimately in accordance with the terms of the approval issued to Operators and MRO’s It is the Operators and Maintenance Organisation Responsibility to comply with the requirements of  Electrical Wiring Interconnect Systems working practices and procedures  EWIS as specified in AMC 20-22.

Sofema Aviation Services based in Sofia deliver regulatory training across a range of regulatory areas, please visit www.sassofia.com for details.

 

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Below is a list of all aviation training courses that are currently open for registration. Click on the event name to proceed.
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Event Date Price
SMS Implementation Review and Workshop - 2 Days, Vilnius, Lithuania
Thursday, Apr 24, 2014 - Friday, Apr 25, 2014 € 555.00
Part 145 Essentials - 1 Day, India - Online - Webex
Monday, Apr 28, 2014 € 120.00
Logistics and Stores Management Essentials - 1 Day, India - Online - Webex
Tuesday, Apr 29, 2014 € 120.00
Optimizing Techniques for Aircraft Production Planning - 1 Day, India - Online - Webex
Wednesday, Apr 30, 2014 € 120.00
Maintaining SMS Compliance in an MRO and 145 Organisations - 1 Day, India - Online - Webex
Thursday, May 01, 2014 € 120.00
Advanced Quality Auditing & Developing Performance Audits - 1 Day, India - Online -Webex
Friday, May 02, 2014 € 120.00
EASA Part M plus CAR M Differences - 2 Days, Dubai, UAE
Sunday, May 04, 2014 - Monday, May 05, 2014 € 595.00
EASA Part M Maintenance Planning Essentials - 1 Day, Dubai, UAE
Tuesday, May 06, 2014 € 325.00
Aviation Quality Management and Auditing - 2 Days, Dubai, UAE
Wednesday, May 07, 2014 - Thursday, May 08, 2014 € 595.00
CAR 145 / EASA Part 145 - 2 Days, Dubai, UAE
Sunday, May 11, 2014 - Monday, May 12, 2014 € 595.00
Fuel Tank Safety - 1 Day, Chisinau, Moldova
Monday, May 12, 2014 € 299.00
EASA Part 145 Production Planning - 1 Day, Dubai, UAE
Tuesday, May 13, 2014 € 325.00
Human Factors Initial - 2 Days, Chisinau, Moldova
Tuesday, May 13, 2014 - Wednesday, May 14, 2014 € 555.00
Logistics and Stores Inspection - 2 Days, Dubai, UAE
Wednesday, May 14, 2014 - Thursday, May 15, 2014 € 595.00
EWIS for Groups 1 & 2 - 2 Days, Chisinau, Moldova
Thursday, May 15, 2014 - Friday, May 16, 2014 € 555.00
Safety Management Systems Implementation Review & Workshop - 2 Days, Dubai, UAE
Saturday, May 17, 2014 - Sunday, May 18, 2014 € 595.00
EWIS for Groups 1 and 2 - 2 Days, Dubai, UAE
Sunday, May 18, 2014 - Monday, May 19, 2014 € 595.00
Part 145 Essentials, 1 Day - Almaty, Kazakhstan
Monday, May 19, 2014 € 299.00
Human Factor Recurrent Course - 1 Day, Dubai, UAE
Tuesday, May 20, 2014 € 325.00
Optimizing Techniques for Aircraft Production Planning - 1 Day, Almaty, Kazakhstan
Tuesday, May 20, 2014 € 299.00
Fuel Tank Safety - 1 Day, Dubai, UAE
Wednesday, May 21, 2014 € 325.00
Part M Essentials - 1 Day, Almaty, Kazakhstan
Wednesday, May 21, 2014 € 299.00
EASA Part M Maintenance Planning Essentials - 1 Day, Almaty, Kazakhstan
Thursday, May 22, 2014 € 299.00
Quality Auditing Essentials - 1 Day, Almaty, Kazakhstan
Friday, May 23, 2014 € 299.00
Safety Management Systems Implementation Review & Workshop - 2 Days - Online - Webex
Thursday, Jun 05, 2014 - Friday, Jun 06, 2014 € 245.00
Part 145 Essentials Overview - 1 Day, Online - Webex
Monday, Jun 09, 2014 € 145.00
Logistics and Stores Management Essentials - 1 Day, Online - Webex
Tuesday, Jun 10, 2014 € 145.00
Part M Essentials - 1 Day, Online - Webex
Wednesday, Jun 11, 2014 € 145.00
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