This is from the US Antarctic Program Air Ops Manual
Basically looks like all B757 ops would breach these procedures
1.5. Adverse Weather Landing Sites/Diverts
1.5.1. When whiteout conditions occur, an aircraft may be unable to complete an instrument approach to the Seasonal Sea Ice Runway, Pegasus White Ice Runway, Pegasus skiway, or Williams Field skiway.
1.5.2. Currently there are no adverse weather landing sites available for wheeled aircraft in Antarctica. Aircrew must ensure sufficient reserve fuel is carried to allow diverting to an alternate airfield off continent.