UPDATE #AA87 The incident happened after V1 stage of takeoff.
UPDATE #AA87 that had the engine problem on take off: Number 2 engine cowling now open (@kyleSA01)
UPDATE #AA87 that had the engine problem on take off: Number 2 engine cowling now open (@kyleSA01) pic.twitter.com/BYeLYkiZp8 – @NewsHazbail
— AIRLIVE (@airlivenet) March 11, 2016
UPDATE 10:13(UTC) #AA87 3x double bang with a reduction in power heard on takeoff – @JetA1Photos
UPDATE 09:54(UTC) #AA87 reported engine fire on takeoff.
UPDATE 09:40(UTC) #AA87 landed runway 09L at Heathrow, we got reports of loud noises on takeoff.
UPDATE 09:30(UTC) American Airlines #AA87 at low altitude returning to Heathrow.
BREAKING American Airlines #AA87 from Heathrow to Chicago is declaring an emergency https://t.co/VawP4NKqyo pic.twitter.com/ts8J6rwMN2
— AIRLIVE (@airlivenet) March 11, 2016