SMART sensor solutions
Airframe Crack Detection Compliance
|Aft Pressure Bulkhead Installation and Inspection Using CVM™||Service Bulletin (Pending)||B737NG: (737-600, 737-700, 737-800, 737-900)|
|Center Wing Box, Front Spar Shear Fitting Inspection Using CVM™||737-57-1309 Rev 1||B737NG: (737-600, 737-700, 737-800, 737-900)|
|Intelsat (Gogo) Wi-Fi Antenna CVM™ Installation||FAA STC ST04103NY||B737-800 Series|
projected annual APB application Benefits across 737NG fleet of 71 aircraft
Source: Delta Airlines
HOW DOES IT WORK?
CVM™ technology involves installing smart sensors to vulnerable airframe structure where damage is anticipated to occur. Using a PM200 hand-held diagnostics device, maintenance staff simply connect to the aircraft’s CVM™ sensor arrays to monitor and detect if surface imperfections exist or if there’s a loss in structural integrity.
Confirming airworthiness has never been easier
Once CVM™ smart sensor kits are placed on the high-stress components of an airframe structure, vacuum is applied to the sensor using the PM200. If vacuum pressure is maintained, then no structural crack exists; however, if there is a loss of vacuum pressure then structural health could be compromised, and a crack may exist.
When a crack develops, it forms a leakage path between a sensor’s atmospheric and vacuum galleries, the flaw results in a vacuum level that cannot be maintained. If no flaw is present, the vacuum will remain at a stable level.
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