Boeing has reviewed the ref /A/ message and provides the following response. Review of the provided QAR data did not identily a specific cause of the waming.Warming indications are usualy caused when gear handle position does not aoree witanding gear postion.In such a case there are AMM tests that would be recommended to verity operaton of the landing gear position indication sensors and rioging.The following AMM operational tests are recommended to be performed:TASK 32-61-31-710-801 MLG Down and Locked Sensor Operational Test TASK 32-61-41-710-801 NLG Lock Sensor Operational Test TASK 32-61-51-710-801 NLG Down Position Sensor Operational Test ASK 32-61-21-710-801 MLG Up and Locked Sensor Operational Test
After review of the provided data and the circuit for the press to test function of the warning lamps we do not believe the recorded warning was the result of the press to test. We have had occasional reports of the landing gear warning being recorded in QAR data. It is believed the recorded warning was due to variances in the voltage levels of the warning discrete circuit. Since this was not reported by the flight crew and had no flight deck effects we would not consider this to be a discrepancy requiring further troubleshooting.
We are not aware of any other press to test lights that will result in warnings being recorded in QAR data.