UNUSUAL FLARE DURING AUTOLAND.

Narrative

IT WAS A BEAUTIFUL DAY IN NARITA -- JUST A FEW CLOUDS IN THE SKY; WINDS STABLE AT ABOUT 10 KTS WITHIN 30 DEGS OF RWY HDG; VISIBILITY VIRTUALLY UNRESTR -- AND IT WAS MY LEG FROM TPE TO NRT; SO I ELECTED TO DO AN AUTOLAND FOR THE PRACTICE. THE ACFT PERFORMED BEAUTIFULLY ON THE APCH; AND ALL INDICATIONS WERE NORMAL. WE GOT ALL 3 LNDG TONES ON SCHEDULE; AND THE ACFT STARTED ITS GENTLE FLARE AT JUST THE RIGHT TIME. AT THIS POINT; HOWEVER; INSTEAD OF HOLDING THAT FLARE PITCH ATTITUDE; THE ACFT KEPT INCREASING PITCH STEADILY! SINCE I WAS GUARDING THE CTLS; I INSTINCTIVELY TRIED EASING THE YOKE FORWARD FOR A SPLIT SECOND -- AT THIS POINT THE CAPT LOOKED OVER AT ME AND SAW MY ACTIONS; AND AT THAT POINT; KNEW THAT SOMETHING WAS AWRY. ALSO; SIMULTANEOUSLY; THE ACFT BEGAN 'FLYING' AND WE FOUND OURSELVES WITH A NOSE HIGH ATTITUDE; DECREASING AIRSPD; AT ABOUT 30 FT. WE BOTH SIMULTANEOUSLY WENT FULL PWR; AND A NORMAL GAR AND MANUAL LNDG WAS MADE. NOTES: 2 OR 3 ACFT WERE IN LINE FOR DEP ON RWY 34; ONE OF WHICH WAS 90 DEGS TO THE RWY AT THE HOLD LINE. PREVIOUS DAY'S WRITE-UP HAD 'NO LAND 3' SIGNED OFF. ALSO; ON TKOF FROM TPE THAT MORNING (SAME LEG); AUTOTHROTTLES DIDN'T ENGAGE UNTIL APPROX 400 FT. PERSONAL OBSERVATIONS: 1) PERFECT DAY AND PERFECT APCH. YOU MIGHT NOT BE AS READY FOR ANYTHING; AS IN BAD WX. WATCH THAT COMPLACENCY! 2) THOSE NOTES AND CIRCULARS PUT OUT ABOUT NOT HAVING ACFT IN THE PROTECTED ILS/LOC ZONES DURING COUPLED APCHS MIGHT BE RIGHT! 3) ALWAYS CORRELATE (AS BEST YOU CAN) PREVIOUS WRITE-UPS AND CURRENT ANOMALIES FOR PATTERNS. IT MAY PAY OFF!