| When the captain saw that the PAPI was indicating that the altitude was too low, he initiated a missed approach. |
| The FAA issued an advisory notice to airport operators after the accident to keep PAPI units running to prevent contamination. |
| The Bromont Airport dispatcher informed the crew that only the PAPI was operational. |
| At about a mile back from the runway, the aircraft intercepted the PAPI glide path and the first officer followed the glide path down toward the runway. |
| During the turn onto final leg, the first officer observed the PAPI and advised the captain that the aircraft was too low. |
| Since the PAPI was located about 500 feet west of the threshold, the co-pilot saw the runway threshold at a distance of? |
