An aircraft comprising: a landing gear assembly including at least one linkage with an aperture extending through the at least one linkage when the landing gear assembly is extended; and a landing gear monitoring and alerting system , comprising: a locking pin configured to be inserted into the aperture when the landing gear assembly is extended, which when inserted inhibits movement of the at least one linkage to establish a locked state of the extended landing gear assembly ; a magnetic sensor disposed proximate the aperture and configured to sense a magnetic response indicative of the locking pin being disposed within the aperture to establish the locked state of the extended landing gear assembly , and the magnetic sensor being configured to generate a sensor output indicative of the locking pin being disposed within the aperture ; and a communication module having a transmitter being coupled to the magnetic sensor so as to receive the sensor output indicative of the locking pin being disposed within the aperture , and the communication module being configured to responsively transmit a signal indicative of the locking pin being disposed within the aperture , establishing the locked state of the extended landing gear assembly . a landing gear assembly including at least one linkage with an aperture extending through the at least one linkage when the landing gear assembly is extended; and a landing gear monitoring and alerting system , comprising: a locking pin configured to be inserted into the aperture when the landing gear assembly is extended, which when inserted inhibits movement of the at least one linkage to establish a locked state of the extended landing gear assembly ; a magnetic sensor disposed proximate the aperture and configured to sense a magnetic response indicative of the locking pin being disposed within the aperture to establish the locked state of the extended landing gear assembly , and the magnetic sensor being configured to generate a sensor output indicative of the locking pin being disposed within the aperture ; and a communication module having a transmitter being coupled to the magnetic sensor so as to receive the sensor output indicative of the locking pin being disposed within the aperture , and the communication module being configured to responsively transmit a signal indicative of the locking pin being disposed within the aperture , establishing the locked state of the extended landing gear assembly . a locking pin configured to be inserted into the aperture when the landing gear assembly is extended, which when inserted inhibits movement of the at least one linkage to establish a locked state of the extended landing gear assembly ; a magnetic sensor disposed proximate the aperture and configured to sense a magnetic response indicative of the locking pin being disposed within the aperture to establish the locked state of the extended landing gear assembly , and the magnetic sensor being configured to generate a sensor output indicative of the locking pin being disposed within the aperture ; and a communication module having a transmitter being coupled to the magnetic sensor so as to receive the sensor output indicative of the locking pin being disposed within the aperture , and the communication module being configured to responsively transmit a signal indicative of the locking pin being disposed within the aperture , establishing the locked state of the extended landing gear assembly . <EOS>