37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 443330 |
Time | |
Date | 199907 |
Day | Tue |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : dfw.airport |
State Reference | TX |
Altitude | msl bound lower : 11000 msl bound upper : 11400 |
Environment | |
Flight Conditions | Mixed |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zfw.artcc tracon : d10.tracon |
Operator | common carrier : air carrier |
Make Model Name | B767 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Navigation In Use | other |
Flight Phase | descent : intermediate altitude |
Route In Use | arrival star : wilbr 2 |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 50 flight time total : 3200 flight time type : 800 |
ASRS Report | 443330 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : multi engine pilot : instrument |
Events | |
Anomaly | aircraft equipment problem : critical altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : far non adherence : published procedure non adherence : clearance |
Independent Detector | other flight crewa |
Resolutory Action | flight crew : returned to assigned altitude flight crew : became reoriented |
Supplementary | |
Problem Areas | Flight Crew Human Performance |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
While descending on the 'bonham three arrival' into dfw, we were told to proceed direct to the 'decap' intersection for the 'wilbr two arrival' for runway 17C. We put the arrival into the FMC along with the crossing restr at 'addvl' 250 KTS/11000 ft. I checked the descent profile and was descending at 1000 FPM because the profile showed we would be 4000 ft low at 'addvl.' center then called us and asked if we were going to make the restr and I checked the FMC and said yes. (First officer as on other radio talking to company.) I then put the 'addvl' fix into the fix page and saw that we would be high at addvl and increased airspeed and extended speed brakes to increase descent rate and crossed addvl 400 ft high and 100 KTS fast. When I realized we would be fast we told ATC and they said talk to the next controller and handed us off to approach at dfw, who then gave us a heading for runway 18R at dfw. Remainder of approach and landing normal. I believe that when we put the new arrival into the FMC we were already too high on profile for the FMC to make or calculate the 'addvl' restr and the profile that was showing was for the lower altitude on the approach. I normally check the fix distance with raw data to ensure that we are on profile. But got busy setting up the new arrival and talking to ATC, while the first officer was talking to the company. Don't depend on FMC data only, use raw data for backup. If company contact is required try to accomplish before the descent/approach phase of flight.
Original NASA ASRS Text
Title: XING RESTR NOT MET ON STAR ARR TO DFW BY B767.
Narrative: WHILE DSNDING ON THE 'BONHAM THREE ARR' INTO DFW, WE WERE TOLD TO PROCEED DIRECT TO THE 'DECAP' INTXN FOR THE 'WILBR TWO ARR' FOR RWY 17C. WE PUT THE ARR INTO THE FMC ALONG WITH THE XING RESTR AT 'ADDVL' 250 KTS/11000 FT. I CHKED THE DSCNT PROFILE AND WAS DSNDING AT 1000 FPM BECAUSE THE PROFILE SHOWED WE WOULD BE 4000 FT LOW AT 'ADDVL.' CTR THEN CALLED US AND ASKED IF WE WERE GOING TO MAKE THE RESTR AND I CHKED THE FMC AND SAID YES. (FO AS ON OTHER RADIO TALKING TO COMPANY.) I THEN PUT THE 'ADDVL' FIX INTO THE FIX PAGE AND SAW THAT WE WOULD BE HIGH AT ADDVL AND INCREASED AIRSPD AND EXTENDED SPD BRAKES TO INCREASE DSCNT RATE AND CROSSED ADDVL 400 FT HIGH AND 100 KTS FAST. WHEN I REALIZED WE WOULD BE FAST WE TOLD ATC AND THEY SAID TALK TO THE NEXT CTLR AND HANDED US OFF TO APCH AT DFW, WHO THEN GAVE US A HEADING FOR RWY 18R AT DFW. REMAINDER OF APCH AND LNDG NORMAL. I BELIEVE THAT WHEN WE PUT THE NEW ARR INTO THE FMC WE WERE ALREADY TOO HIGH ON PROFILE FOR THE FMC TO MAKE OR CALCULATE THE 'ADDVL' RESTR AND THE PROFILE THAT WAS SHOWING WAS FOR THE LOWER ALT ON THE APCH. I NORMALLY CHK THE FIX DISTANCE WITH RAW DATA TO ENSURE THAT WE ARE ON PROFILE. BUT GOT BUSY SETTING UP THE NEW ARR AND TALKING TO ATC, WHILE THE FO WAS TALKING TO THE COMPANY. DON'T DEPEND ON FMC DATA ONLY, USE RAW DATA FOR BACKUP. IF COMPANY CONTACT IS REQUIRED TRY TO ACCOMPLISH BEFORE THE DSCNT/APCH PHASE OF FLT.
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.