> There's no such thing as "an ILS approach where the pilot agrees to visually maintain separation from aircraft landing on the parallel runway"
Not a cleared instrument approach, but nothing stops the pilot from following the ILS procedure with approval from ATC on such a "visual" approach.
A full ILS approach could be approved with an aircraft landing in parallel, however, if the required separation was supplied by the cooperating aircraft trailing just behind the ILS-landing aircraft.
> The following conditions apply to visual approaches being conducted simultaneously to parallel, intersecting, and converging runways, as appropriate:
> Parallel runways separated by less than 2,500 feet. Unless approved separation is provided, an aircraft must report sighting a preceding aircraft making an approach (instrument or visual) to the adjacent parallel runway. When an aircraft reports another aircraft in sight on the adjacent extended runway centerline and visual separation is applied, controllers must advise the succeeding aircraft to maintain visual separation. https://www.faa.gov/air_traffic/publications/atpubs/atc_html...
If the Lufthansa was not heavy (and thus not required to slightly trail the parallel aircraft), the required separation could have been supplied by the other pilot, and it would apparently comply with Lufthansa's SOP. It's somewhat counterintuitive to me that Lufthansa would prefer to trust any pilot other than its own to provide the required separation.
Not a cleared instrument approach, but nothing stops the pilot from following the ILS procedure with approval from ATC on such a "visual" approach.
A full ILS approach could be approved with an aircraft landing in parallel, however, if the required separation was supplied by the cooperating aircraft trailing just behind the ILS-landing aircraft.
> The following conditions apply to visual approaches being conducted simultaneously to parallel, intersecting, and converging runways, as appropriate:
> Parallel runways separated by less than 2,500 feet. Unless approved separation is provided, an aircraft must report sighting a preceding aircraft making an approach (instrument or visual) to the adjacent parallel runway. When an aircraft reports another aircraft in sight on the adjacent extended runway centerline and visual separation is applied, controllers must advise the succeeding aircraft to maintain visual separation. https://www.faa.gov/air_traffic/publications/atpubs/atc_html...
If the Lufthansa was not heavy (and thus not required to slightly trail the parallel aircraft), the required separation could have been supplied by the other pilot, and it would apparently comply with Lufthansa's SOP. It's somewhat counterintuitive to me that Lufthansa would prefer to trust any pilot other than its own to provide the required separation.