Narrative:

Location: inbound on cun 316 degree radial. After disconnecting autoplt for visual approach to cun runway 12R, found that stabilizer would not trim nose down. Tried: fast, slow and manual trim. Stabilizer was jammed. It would trim nose up, so we continued visual approach ILS runway 12. We tried at different speeds and flap settings as we slowed but could not budge stabilizer nose down. Nose up trim only required for approach. Landing uneventful. On touchdown, first officer tested nose down trim again and it worked normally. Crew that brought aircraft in had exact scenario on previous flight. Maintenance at dfw inspected and found no discrepancy. Maintenance flown into cun. Did numerous parts replacements on stabilizer trim system. Ferried aircraft to ZZZ 2 days later with no further problems.

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Original NASA ASRS Text

Title: A B727 PIC RPT ON A MALFUNCTIONING STABILIZER TRIM ON AN APCH INTO CANCUN, CUN, FO.

Narrative: LOCATION: INBOUND ON CUN 316 DEG RADIAL. AFTER DISCONNECTING AUTOPLT FOR VISUAL APCH TO CUN RWY 12R, FOUND THAT STABILIZER WOULD NOT TRIM NOSE DOWN. TRIED: FAST, SLOW AND MANUAL TRIM. STABILIZER WAS JAMMED. IT WOULD TRIM NOSE UP, SO WE CONTINUED VISUAL APCH ILS RWY 12. WE TRIED AT DIFFERENT SPDS AND FLAP SETTINGS AS WE SLOWED BUT COULD NOT BUDGE STABILIZER NOSE DOWN. NOSE UP TRIM ONLY REQUIRED FOR APCH. LNDG UNEVENTFUL. ON TOUCHDOWN, FO TESTED NOSE DOWN TRIM AGAIN AND IT WORKED NORMALLY. CREW THAT BROUGHT ACFT IN HAD EXACT SCENARIO ON PREVIOUS FLT. MAINT AT DFW INSPECTED AND FOUND NO DISCREPANCY. MAINT FLOWN INTO CUN. DID NUMEROUS PARTS REPLACEMENTS ON STABILIZER TRIM SYS. FERRIED ACFT TO ZZZ 2 DAYS LATER WITH NO FURTHER PROBS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.