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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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B747 aircraft departing on SID at maximum weight had to turn tightly to follow SID. Tight turn, heavy aircraft and speed restr resulted in approach to a stall (stick shaker).
| Attributes | |
| ACN | 369679 |
| Time | |
| Date | 199705 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pek |
| State Reference | FO |
| Altitude | msl bound lower : 6000 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pek |
| Operator | common carrier : air carrier |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other departure sid : sid enroute airway : pek |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 10025 flight time type : 1850 |
| ASRS Report | 369679 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 22000 flight time type : 110 |
| ASRS Report | 369675 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Departed runway 36L, beijing, china. Assigned SID 'D04.' procedure calls for making a left 360 degree turn beginning and ending at 'lg' to a hard altitude of 1200M. 840000+ pound takeoff. FMC programmed for the SID and depicted the 360 degree circle at 'lg.' upon reaching 'lg,' it and the circle disappeared as we passed it. I initiated the left turn via heading select, but only slewed bug part way around to assure left turn. Somewhere in turn, departure advised 'cancel restrs' or perhaps 'cancel altitude restrs.' captain (PF) began accelerating and calling for retracting flaps from 20 degrees. Somewhere in there I got busy with the retraction and navigation and didn't continue to move the heading bug the final 90%. Call was made for 'flaps up.' we were turning (I believe) but starting to get contrary the flight director due to heading bug improperly set. Checked airspeed (indicated), was sufficient, selected flaps up. Advised captain of need for tighter turn to get to 'lg.' was cognizant of being tight on IAS for the increase in rate of turn. Had very brief buffet (second or two) and onset of stick shaker, I called 'stall' and aided in initiating recovery. Overshoot occurred during all this. Correcting back to SID track and 'departure' cleared us direct to a subsequent fix. Rest of our 'shift' normal (double crewed). Note: first time flying out of pek for both pilots. Captain is in 'first 100 hours' on B747-400. Not a great combination for a far 121.445 special airport. Confusion began when 'lg' and its 'circle' disappeared when passed. Didn't expect this since it was a selected SID (departure/arrival). There is a 260 KT speed limit in the 'circle.' increasing workload/confusion (including 'cancel restrs') got us off our original plan. Should have completed the 360 degrees before clean up. Will submit report to company recommending to put an advisory note in commercial chart information page regarding 'disappearing circle' and need to maintain some degree of flaps until completing the 360 degrees and re-passing 'lg' (for speed limit) regardless of departure inputs.
Original NASA ASRS Text
Title: B747 ACFT DEPARTING ON SID AT MAX WT HAD TO TURN TIGHTLY TO FOLLOW SID. TIGHT TURN, HVY ACFT AND SPD RESTR RESULTED IN APCH TO A STALL (STICK SHAKER).
Narrative: DEPARTED RWY 36L, BEIJING, CHINA. ASSIGNED SID 'D04.' PROC CALLS FOR MAKING A L 360 DEG TURN BEGINNING AND ENDING AT 'LG' TO A HARD ALT OF 1200M. 840000+ LB TKOF. FMC PROGRAMMED FOR THE SID AND DEPICTED THE 360 DEG CIRCLE AT 'LG.' UPON REACHING 'LG,' IT AND THE CIRCLE DISAPPEARED AS WE PASSED IT. I INITIATED THE L TURN VIA HEADING SELECT, BUT ONLY SLEWED BUG PART WAY AROUND TO ASSURE L TURN. SOMEWHERE IN TURN, DEP ADVISED 'CANCEL RESTRS' OR PERHAPS 'CANCEL ALT RESTRS.' CAPT (PF) BEGAN ACCELERATING AND CALLING FOR RETRACTING FLAPS FROM 20 DEGS. SOMEWHERE IN THERE I GOT BUSY WITH THE RETRACTION AND NAV AND DIDN'T CONTINUE TO MOVE THE HEADING BUG THE FINAL 90%. CALL WAS MADE FOR 'FLAPS UP.' WE WERE TURNING (I BELIEVE) BUT STARTING TO GET CONTRARY THE FLT DIRECTOR DUE TO HEADING BUG IMPROPERLY SET. CHKED AIRSPD (INDICATED), WAS SUFFICIENT, SELECTED FLAPS UP. ADVISED CAPT OF NEED FOR TIGHTER TURN TO GET TO 'LG.' WAS COGNIZANT OF BEING TIGHT ON IAS FOR THE INCREASE IN RATE OF TURN. HAD VERY BRIEF BUFFET (SECOND OR TWO) AND ONSET OF STICK SHAKER, I CALLED 'STALL' AND AIDED IN INITIATING RECOVERY. OVERSHOOT OCCURRED DURING ALL THIS. CORRECTING BACK TO SID TRACK AND 'DEP' CLRED US DIRECT TO A SUBSEQUENT FIX. REST OF OUR 'SHIFT' NORMAL (DOUBLE CREWED). NOTE: FIRST TIME FLYING OUT OF PEK FOR BOTH PLTS. CAPT IS IN 'FIRST 100 HRS' ON B747-400. NOT A GREAT COMBINATION FOR A FAR 121.445 SPECIAL ARPT. CONFUSION BEGAN WHEN 'LG' AND ITS 'CIRCLE' DISAPPEARED WHEN PASSED. DIDN'T EXPECT THIS SINCE IT WAS A SELECTED SID (DEP/ARR). THERE IS A 260 KT SPD LIMIT IN THE 'CIRCLE.' INCREASING WORKLOAD/CONFUSION (INCLUDING 'CANCEL RESTRS') GOT US OFF OUR ORIGINAL PLAN. SHOULD HAVE COMPLETED THE 360 DEGS BEFORE CLEAN UP. WILL SUBMIT RPT TO COMPANY RECOMMENDING TO PUT AN ADVISORY NOTE IN COMMERCIAL CHART INFO PAGE REGARDING 'DISAPPEARING CIRCLE' AND NEED TO MAINTAIN SOME DEG OF FLAPS UNTIL COMPLETING THE 360 DEGS AND RE-PASSING 'LG' (FOR SPD LIMIT) REGARDLESS OF DEP INPUTS.
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.