Iran refuses to hand over the crashed Ukrainian Boeing 737’s black box to the embattled manufacturer

Iranian authorities are refusing to hand over a flight recorder recovered from Wednesday’s plane crash in Iran to Boeing, the plane’s manufacturer, according to Iranian media.

Crash investigators had found one of the two so-called black boxes from the Boeing 737-800 that crashed near Tehran at about 6:20 a.m. on Wednesday, Iran’s state media reported. All 176 people aboard the flight were killed.

Black boxes record flight data and audio from the cockpit, and they often provide valuable insights into how a crash took place.

Ali Abedzadeh, the head of Iran’s civil aviation authority, said Iran would not give the black box to Boeing, according to Reuters, which cited the semiofficial Mehr news agency. He did not appear to specify a reason.