What was found
AFTER GEAR RETRACTION, NOSE GEAR BANGED UP AND DOWN FOR 15 TO 20 SECONDS. COULD BE FELT AND HEARD IN CABIN. GEAR CAME DOWN NORMAL. FOUND STRUT WOULD NOT EXTEND FULLY DUE TO PRESSURE LOSS IN LWR CHAMBER. DISASSEMBLY & REPACKED STRUT WITH NEW SEAL, NUT, PISTON, & SPACER. REASSEMBLED, INSTALLED & SERVICED NOSE STRUT. REF CMM 32-20-01 & MM 32-20-00. OPS CHECKS AND GEAR SWINGS SATIS.