United Airlines 173
Printed page 4. PDF page 10.
the direction of Portland Approach in a triangular pattern southeast of the airport at 5,000 ft. The pattern kept that aircraft within about 20 nmi of the airport. (See Figure 1.) -> From about 1744:30 until about 1745:23, the cockpitOpen official document at PDF page 10United Airlines, Inc., McDonnell-Douglas DC-8-61, N8082U, Portland, Oregon, December 28, 1978