What was found
ON DEPARTURE UPON SELECTING FLAPS UP, ENCOUNTERED A FLAP DISAGREEMENT WITH THE OUTER PAIR HUNG BETWEEN 15 AND 0. RECYCLED THE FLAPS AS PER THE QRH WITH NO SUCCESS. SUBSEQUENTLY RETURNED TO SFO. REPLACED FLAP ANNUNCIATOR ASSEMBLY, OPS CHECKS GOOD. P/N ON: 3471001001C, S/N ON: 0086, S/N OFF: 0077.