Контекст: If the pipes are able to be recovered back inside firing line, remove the pipes one by one at Station No. 1. Once the defected joint(s) have been recovered, weld A&R head on the last un-affected pipe joint and proceed to laydown the pipeline.

Что здесь A&R head? Головка датчика?

По ссылке описание и фото
https://www.f-e-t.com/products/drilling-and-subsea/subsea-technologies/moffat/products-and-services/ar-pull-in-heads