What was found
ON A TEST FLIGHT AFTER ENGINE INSTALL. ENGINE BEING TESTED FLAMED OUT AT 42,500 FT. AT A LOWER ALTITUDE OF 23,000 FT ENGINE RESTARTED AND RAN WITH NO FURTHER TROUBLE AND NO INDICATIONS OF ENGINE PROBLEMS. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED FIRST STAGE TURBINE SHROUDS. ADJUSTED 1ST STAGE AIR NOZZLE. AIRCRAFT FLIGHT TESTED AT 45,000 FEET SATISFACTORY FOR RETURN TO SERVICE. (M)