CORRECTED - UPDATE 2-Bodies, debris retrieved from Air France crash

(Corrects source for faulty speed readings in lead paragraph)

* Searchers retrieve two bodies, debris from Atlantic

* Airbus detected faulty speed readings on A330s

* Aircraft sent 24 system failure messages

(Recasts with bodies found, previous dateline PARIS)

By Fernando Exman and Tim Hepher

RECIFE, Brazil/PARIS, June 6 (Reuters) - Brazilian search crews on Saturday retrieved the first bodies from a crashed Air France plane in the Atlantic and air investigators said faulty speed readings had been detected on the same type of jets.

Navy ships found the bodies of two men and debris including a blue seat with a serial number matching Air France flight 447, a rucksack containing a vaccination card, and a briefcase with an Air France ticket inside, rescue officials said.

"This morning at 8:14 a.m., we confirmed the rescue from the water of pieces and bodies that belonged to the Air France flight," air force spokesman Jorge Amaral told reporters in the northeastern city of Recife.