Person with chest pain at Metrolink ticket booth Heard on: Los Angeles County CA Fire Dispatch ยท Countywide Dispatch 00:07 00:00 Engine 33, chest pain, Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Engine 33, chest pain, 00:02 (number withheld) North Sierra Highway, 00:05 Metrolink at the ticket booth. 2026-09-28 05:27 UTC Medical Emergency Parking lot, 44812 Sierra Hwy, Lancaster, CA 93534 View on map