Qualla: American Airlines Flight 6-103

American Airlines Flight 6-103: Introduction

Sat, 28 Mar 2026 00:00:00 GMT

On the morning of March 3, 1946, a Douglas DC-3 departed Tucson heading west toward San Diego. It never arrived. Somewhere in the mountains east of San Diego, in terrain that aviators had been crossing with increasing regularity since the introduction of commercial air service, the aircraft struck Thing Mountain and killed everyone aboard. Twenty-seven people — three crew members, twenty-two adults, two infants — died in a crash that, at that moment, was the deadliest accident in American airline history. The wreckage sat undiscovered in the mountains for sixty-nine years.

American Airlines Flight 6-103: Flight Context

Sat, 28 Mar 2026 00:00:00 GMT

Thing Mountain, where American Airlines Flight 6-103 crashed, is located at approximately 32.828°N, 116.527°W in the Laguna Mountains of San Diego County. The mountain terrain east of El Cajon — the Laguna Mountains grade along Interstate 8 — represents the challenging airspace context for this accident. Nearest airports: KSAN (San Diego International, ~35 nm W), KSEE (Gillespie Field, ~25 nm NW), L78 (Jacumba, ~15 nm SE).

American Airlines Flight 6-103: The Record That Nobody Wanted

Sat, 28 Mar 2026 00:00:00 GMT

At the time of the crash, the death toll of 27 made American Airlines Flight 6-103 the deadliest commercial airline accident in United States history. The record did not hold long — commercial aviation in the postwar years was expanding rapidly, and with expansion came more accid...

American Airlines Flight 6-103: Sixty-Nine Years in the Mountains

Sat, 28 Mar 2026 00:00:00 GMT

The wreckage of Flight 6-103 was not found until 2015. For sixty-nine years, the aircraft lay on Thing Mountain in San Diego County's backcountry, in terrain that is rugged enough that even a systematic search failed to locate it in the weeks and months after the crash. The mount...

American Airlines Flight 6-103: Thing Mountain

Sat, 28 Mar 2026 00:00:00 GMT

Thing Mountain takes its name from a roadside attraction that operated on the old Highway 80 below — a tourist stop called simply 'The Thing,' which drew travelers curious about its ambiguous exhibits. The mountain itself is unremarkable in the sense that all mountains in this pa...