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|
Attributes | |
ACN | 364320 |
Time | |
Date | 199703 |
Day | Sat |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | airport : swf |
State Reference | NY |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | IMC |
Light | Night |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | B727 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Flight Phase | descent : approach landing other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : instrument pilot : atp pilot : commercial pilot : flight engineer |
Experience | flight time last 90 days : 130 flight time total : 16500 flight time type : 8000 |
ASRS Report | 364320 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | aircraft equipment problem : less severe incursion : landing without clearance non adherence : far non adherence : published procedure other anomaly other |
Independent Detector | other controllera |
Resolutory Action | none taken : detected after the fact other |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
This event occurred in the approach/landing phase of swf at approximately XA50 local. The first officer was flying the aircraft on a coupled approach to runway 9. As we approached the final approach fix, it appeared the autoplt was not properly tracking the localizer and GS so the autoplt was disconnected by the first officer at the time that approach control handed us off to tower. The autoplt disconnect button also disengages both flight directors. I re-engaged both flight directors but the first officer's flight director was not giving proper commands and at about 800 ft AGL I elected to take control of the aircraft to continue the approach and landed uneventfully, other than not having contacted swf tower. On the landing roll swf tower asked if we were on the ground. The response, of course, being affirmative, along with the awareness that we had not contacted the tower. This situation was a result of very high cockpit workload at approach/control to tower handoff time which was brought about by an autoplt and flight director malfunction -- slow to intercept, and track the localizer and GS. The situation was further exacerbated by a training environment -- new flight engineer getting IOE, and a check engineer who solicited unintelligible input during this critical phase of flight. There were no other aircraft operating at swf during this period of time.
Original NASA ASRS Text
Title: B727 ACFT ON COUPLED APCH, FO FLYING, APPEARED AUTOPLT NOT TRACKING LOC ACCURATELY SO AUTOPLT WAS DISCONNECTED WHICH ALSO DISCONNECTED FOR DIRECTORS. UPON RE-ENGAGING AUTOPLT AND FLT DIRECTORS, FO FLT DIRECTOR WAS INACCURATE. CAPT TOOK OVER FLYING THE ACFT DOWN TO LNDG, BUT FLC FORGOT TO GET LNDG CLRNC FROM THE TWR. OTHER DISTRS WERE A NEW FE GETTING IOE AND THE CHK INSTRUCTOR TALKING DURING CRITICAL APCH PHASE.
Narrative: THIS EVENT OCCURRED IN THE APCH/LNDG PHASE OF SWF AT APPROX XA50 LCL. THE FO WAS FLYING THE ACFT ON A COUPLED APCH TO RWY 9. AS WE APCHED THE FINAL APCH FIX, IT APPEARED THE AUTOPLT WAS NOT PROPERLY TRACKING THE LOC AND GS SO THE AUTOPLT WAS DISCONNECTED BY THE FO AT THE TIME THAT APCH CTL HANDED US OFF TO TWR. THE AUTOPLT DISCONNECT BUTTON ALSO DISENGAGES BOTH FLT DIRECTORS. I RE-ENGAGED BOTH FLT DIRECTORS BUT THE FO'S FLT DIRECTOR WAS NOT GIVING PROPER COMMANDS AND AT ABOUT 800 FT AGL I ELECTED TO TAKE CTL OF THE ACFT TO CONTINUE THE APCH AND LANDED UNEVENTFULLY, OTHER THAN NOT HAVING CONTACTED SWF TWR. ON THE LNDG ROLL SWF TWR ASKED IF WE WERE ON THE GND. THE RESPONSE, OF COURSE, BEING AFFIRMATIVE, ALONG WITH THE AWARENESS THAT WE HAD NOT CONTACTED THE TWR. THIS SIT WAS A RESULT OF VERY HIGH COCKPIT WORKLOAD AT APCH/CTL TO TWR HDOF TIME WHICH WAS BROUGHT ABOUT BY AN AUTOPLT AND FLT DIRECTOR MALFUNCTION -- SLOW TO INTERCEPT, AND TRACK THE LOC AND GS. THE SIT WAS FURTHER EXACERBATED BY A TRAINING ENVIRONMENT -- NEW FLT ENGINEER GETTING IOE, AND A CHK ENGINEER WHO SOLICITED UNINTELLIGIBLE INPUT DURING THIS CRITICAL PHASE OF FLT. THERE WERE NO OTHER ACFT OPERATING AT SWF DURING THIS PERIOD OF TIME.
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.