What was found
FLT#1083, JFK-MCO. (AIRCRAFT DIVERTED TO RDU) 'AT CRUISE FL260, BLEED 1 FAILED.A/C BEGAN TO DEPREEURIZE QRH COMPLETED, BLEED WORK AGAIN .15 MINUTES LATER, BLEED 1 FAILED AGAIN. DURING LANDING ON DIVERT BLEED 1 FAILED A THIRD TIME ( ENGINE BLEED SYSTEMS ); REMOVED AND REPLACED #1 ENG NAPRSOV IAW AMM 36-11-03. OPS AND LEAK CHECKS ARE GOOD. PLACARD REMOVED. MX-4 UPDATED. MDDR CLEARED.'