What was found
ON T/O, NOSE GEAR INDICATED NO RETRACT, BOTH INDICATIONS. ON LANDING NR 2 T/R WOULD NOT DEPLOY. RAN APPROPRIATE CHECKLIST, DUMPED FUEL AND RETURNED TO ANC. INSPECTED NOSE GEAR, PROX ELECTRONIC UNIT FROM A/C 315, INSTALLED IN A/C 302. JACKED NOSE GEAR, CYCLED NOSE GEAR SEVERAL TIMES. ALL INDICATION NORMAL, OK FOR SERVICE SEE AML 603806 FOR T/R NR 2.