As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE PRV ILLUMINATED DURING CLIMB OUT, ALL INDICATIONS NORMAL. REMOVED AND REPLACED LEFT ENGINE BLEED PRINTER CIRCUIT ASSY. SYSTEM TEST PASSED, OPERATIONAL CHECKED NORMAL IAW AMM 36-11-12. REMOVED AND REPLACED THE PRV CONTROLLER IAW AMM 36-11-17. OPS CHECKED GOOD. NO DEFECTS NOTED.