Narrative:

Captain was flying and he is highly experienced in type and part 121 operations. After numerous slow down instructions (due to ATC delay) on an arrival into sfo, we were given normal speed and an arrival instruction (to cross cedes intersection at 11000 ft and 250 KTS speed). Since the flight was delayed due to an earlier speed restr, captain maintained faster speed on descent (350 KTS). Although it was a bit tight to slow down to 250 KTS at sedes intersection, I was confident that the captain would make the leveloff at 11000 ft and 250 KTS. However, the captain added thrust to spool up the engines in anticipation of leveling off, which reduced the rate of reduction in airspeed. He crossed the intersection with speed of 280 KIAS on my indicator. ATC questioned our speed and I responded '260 KTS,' repeating the captain. The next controller asked if we were given the speed restr and I said 'affirmative.' he gave us a turning instruction to regain the separation. Rest of the flight was uneventful and we finished the duty for that day. Captain apologized to us for the event at the end. I entrusted too much on the captain's ability to comply with the instruction. We all make mistakes, even a highly experienced one. I should have spoken out earlier and not to assume what the other's going to do in the certain flight situation. Supplemental information from acn 412475: I spoke up, but in not enough time to fix the rapidly approaching airspeed deviation.

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Original NASA ASRS Text

Title: A B727-200 ON APCH TO CEDES FAILS TO CROSS THAT INTXN AT THE REQUIRED 250 KTS. CREW INDICATED THAT THE ACFT WAS BEHIND SCHEDULE.

Narrative: CAPT WAS FLYING AND HE IS HIGHLY EXPERIENCED IN TYPE AND PART 121 OPS. AFTER NUMEROUS SLOW DOWN INSTRUCTIONS (DUE TO ATC DELAY) ON AN ARR INTO SFO, WE WERE GIVEN NORMAL SPD AND AN ARR INSTRUCTION (TO CROSS CEDES INTXN AT 11000 FT AND 250 KTS SPD). SINCE THE FLT WAS DELAYED DUE TO AN EARLIER SPD RESTR, CAPT MAINTAINED FASTER SPD ON DSCNT (350 KTS). ALTHOUGH IT WAS A BIT TIGHT TO SLOW DOWN TO 250 KTS AT SEDES INTXN, I WAS CONFIDENT THAT THE CAPT WOULD MAKE THE LEVELOFF AT 11000 FT AND 250 KTS. HOWEVER, THE CAPT ADDED THRUST TO SPOOL UP THE ENGS IN ANTICIPATION OF LEVELING OFF, WHICH REDUCED THE RATE OF REDUCTION IN AIRSPD. HE CROSSED THE INTXN WITH SPD OF 280 KIAS ON MY INDICATOR. ATC QUESTIONED OUR SPD AND I RESPONDED '260 KTS,' REPEATING THE CAPT. THE NEXT CTLR ASKED IF WE WERE GIVEN THE SPD RESTR AND I SAID 'AFFIRMATIVE.' HE GAVE US A TURNING INSTRUCTION TO REGAIN THE SEPARATION. REST OF THE FLT WAS UNEVENTFUL AND WE FINISHED THE DUTY FOR THAT DAY. CAPT APOLOGIZED TO US FOR THE EVENT AT THE END. I ENTRUSTED TOO MUCH ON THE CAPT'S ABILITY TO COMPLY WITH THE INSTRUCTION. WE ALL MAKE MISTAKES, EVEN A HIGHLY EXPERIENCED ONE. I SHOULD HAVE SPOKEN OUT EARLIER AND NOT TO ASSUME WHAT THE OTHER'S GOING TO DO IN THE CERTAIN FLT SIT. SUPPLEMENTAL INFO FROM ACN 412475: I SPOKE UP, BUT IN NOT ENOUGH TIME TO FIX THE RAPIDLY APCHING AIRSPD DEV.

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.