A monitoring system for an aircraft engine, the monitoring system comprising an engine monitoring module, wherein the engine monitoring module comprises: a plurality of engine sensors (600A-600F); a housing configured to be mounted at the aircraft engine, a first wireless transmitter carried by the housing, a memory carried by the housing, a processor carried by the housing and coupled to the memory and the first wireless transmitter and configured to collect and store in said memory engine data relating to at least one engine parameter sensed during operation of the aircraft engine by the plurality of engine sensors (600A-600F) and transmit the engine data via the first wireless transmitter; wherein the monitoring system further comprises a wireless receiver located within the aircraft and configured to receive the engine data transmitted from the first wireless transmitter; and a second wireless transmitter (540, 550) located within the aircraft and operatively connected to the wireless receiver and configured to transmit the engine data; wherein said second wireless transmitter (540, 550) is an Ultra High Frequency, UHF, transmitter configured to transmit the engine data over an air-to-ground communications signal or is configured to transmit the engine data over a satellite communications link, characterized in that the wireless receiver is a cabin wireless local area network, LAN, unit configured to operate as a wireless access point, said plurality of sensors (600A-600F) forms a wireless sensor network, wherein each sensor includes a sensor processor adapted to configure the respective sensor to change a sampling rate; and the engine monitoring module further comprises a wireless sensor network central processing unit and a transceiver, wherein the wireless sensor network central processing unit and the transceiver interoperate with said plurality of wireless engine sensors for communications. a plurality of engine sensors (600A-600F); a housing configured to be mounted at the aircraft engine, a first wireless transmitter carried by the housing, a memory carried by the housing, a processor carried by the housing and coupled to the memory and the first wireless transmitter and configured to collect and store in said memory engine data relating to at least one engine parameter sensed during operation of the aircraft engine by the plurality of engine sensors (600A-600F) and transmit the engine data via the first wireless transmitter; wherein the monitoring system further comprises a wireless receiver located within the aircraft and configured to receive the engine data transmitted from the first wireless transmitter; and a second wireless transmitter (540, 550) located within the aircraft and operatively connected to the wireless receiver and configured to transmit the engine data; wherein said second wireless transmitter (540, 550) is an Ultra High Frequency, UHF, transmitter configured to transmit the engine data over an air-to-ground communications signal or is configured to transmit the engine data over a satellite communications link, characterized in that the wireless receiver is a cabin wireless local area network, LAN, unit configured to operate as a wireless access point, said plurality of sensors (600A-600F) forms a wireless sensor network, wherein each sensor includes a sensor processor adapted to configure the respective sensor to change a sampling rate; and the engine monitoring module further comprises a wireless sensor network central processing unit and a transceiver, wherein the wireless sensor network central processing unit and the transceiver interoperate with said plurality of wireless engine sensors for communications.