GM3 CAT.GEN.MPA.140 Portable electronic
devices
EVALUATION OF CARGO TRACKING DEVICES
(a) Safety assessment
Further guidance on performing a safety assessment can be found in:
(1) EASA, ‘Certification specifications and acceptable means of compliance for large aeroplanes’, CS-25, Book 2, AMC-Subpart F, AMC 25.1309;
(2) EUROCAE/SAE, ‘Guidelines for development of civil aircraft and systems’, ED-79/ARP 4754 (or later revisions); and
(3) SAE, ‘Guidelines and methods for conducting the safety assessment process on civil airborne systems and equipment’, ARP 4761 (or later revisions).
(b) HIRF certification
The type certificate data sheet (TCDS), available on the EASA website for each aircraft model having EASA certification, lists whether the HIRF certification has been performed through a special condition. The operator may contact the type certification holder to gain the necessary information.
(c) Multiple modes of redundancy
Multiple modes of redundancy means that the device is designed with a minimum of two independent means to turn it off completely, turn off the cellular or mobile functions, or a combination of both when airborne. These independent methods should use different sources to identify that the aircraft is in flight, for example, a cargo-tracking device may be designed to sense rapid altitude changes and acceleration to determine when to turn off cellular transmissions. Redundant sources of the same information, such as two vertical accelerometers, should not be considered independent.
Aviation operators must assess the safety of portable electronic devices, like cargo trackers, using industry guidelines. Aircraft HIRF certification details are available from EASA or the manufacturer. Devices should have multiple independent ways to disable cellular functions or power off completely when airborne, using diverse flight detection methods.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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