On March 28, 2007, at 0230 coordinated universal time, a Piper PA-28-181, Jordan registration JY-RJC, operated by the Royal Jordanian Air Academy, had the number 3 cylinder head (manufactured by ECi) separate from the cylinder barrel adjacent to the top barrel thread during the initial climb following a touch-and-go at Marka International Airport, Amman, Jordan. The airplane returned to the runway and landed safely. This was the third cylinder head separation on RJAA aircraft since November 2006. The Jordanian CAA sent all three failed cylinders to the NTSB Materials Lab for examination. The accident investigation is under the jurisdiction and control of the Jordanian government. Any further information may be obtained from: Civial Aviation Regulatory Comission PO Box 7547 Amman Area Code 11110 Jordan Telephone : +962 (06) 4892282 Facsimile : +962 (06) 4891653 Email : info@carc.gov.jo P.O.Box 7547 Amman Area Code 11110 Jordan This report is for informational purposes only and contains only information released by or obtained from the Jordan government.