Comparative vacuum monitoring as an alternate means of compliance

Wheatley, G., Kollgaard, G., Register, J., and Zaidi, M (2003) Comparative vacuum monitoring as an alternate means of compliance. In: Structural Health Monitoring 2003: Proceedings of the 4th International Workshop on Structural Health Monitoring. pp. 1358-1365. From: 4th International Workshop on Structural Health Monitoring, 15-17 September 2003, Stanford, CA, USA.

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Many aircraft inspections currently required necessitate personnel to access·difficult or hazardous areas. The inspections also require removal of structure,,sealant often must be removed and restored with the commensurate damage to structure, ventilation must take place, etc. An automated inspection method that does not have reduced accuracy and that could take place with personnel remote to the inspection area is desirable. Permanently mounted sensors in the inspection·areas that could be remotely interrogated would be the simplest option. A CVM portable system is currently available for this purpose. Boeing1, FAA 1, Airbus2, Northwest Airlines1, US Navy3 and RAAF4 are currently conducting independent verification trials with Structural Monitoring Systems, Ltd. (SMS). These trials involve laboratory, environmental and on-aircraft tests. The validation trial with theUS Navy has involved an on-aircraft installation for the last 18 months and recently successfully detected a crack. SMS is now conducting a joint Boeing/Northwest Airlines/FAA validation trial on a flying DC-9. The wing spar in the fuel tank area of the wing is to be monitored. The current inspection requires 4 days for completion and will be reduced to 5 minutes by CVM. Installation is expected to occur in the last quarter of 2003 and will result in CVM being approved as an alternate means of compliance (AMOC).

Item ID: 58784
Item Type: Conference Item (Presentation)
ISBN: 978-1-932078-20-6
Date Deposited: 19 Feb 2020 00:00
FoR Codes: 09 ENGINEERING > 0901 Aerospace Engineering > 090199 Aerospace Engineering not elsewhere classified @ 100%
SEO Codes: 88 TRANSPORT > 8803 Aerospace Transport > 880399 Aerospace Transport not elsewhere classified @ 100%
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