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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier DC9 flight crew is instructed to cross 15 DME of ukw at 15000 ft while at 25 DME and 24000 ft. The flight crew attempts to inform the controller that they were unable, but the frequency was congested. They crossed too high. Later they departed hikay on the wrong heading when they misread the arrival chart. The flight crew complain about the chart's layout.
| Attributes | |
| ACN | 371058 |
| Time | |
| Date | 199706 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ukw airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 15000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 100 flight time total : 8000 flight time type : 75 |
| ASRS Report | 371058 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance non adherence : far non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation other |
| Situations | |
| Publication | Unspecified |
Narrative:
Flying the bowie 2 arrival into dfw (ukw.UKW2) told to expect 15 mi north of bowie at 15000 ft, however, were given step down altitudes, the last being FL240. Approximately 25 DME on the 015 degree radial, given clearance to cross 15 DME at 15000 ft. Increased rate of descent to the maximum feasible and told copilot to inform ATC that we could not make that, however, would give it best shot. Copilot tried to relay, however, there were several simultaneous xmissions, and we never received an acknowledgement from center. Next transmission was to contact approach control. It was physically impossible to lose that altitude in 8-10 NM. Next on the arrival was a non turbojet heading out of hikay of 140 degrees instead of the turbojet heading of 170 degrees out of siler. I feel that this arrival is far too busy and the chart too cluttered for safety not to be jeopardized. Turbojet, non turbojet, all aircraft on same page. Make 2 arrs!
Original NASA ASRS Text
Title: AN ACR DC9 FLC IS INSTRUCTED TO CROSS 15 DME OF UKW AT 15000 FT WHILE AT 25 DME AND 24000 FT. THE FLC ATTEMPTS TO INFORM THE CTLR THAT THEY WERE UNABLE, BUT THE FREQ WAS CONGESTED. THEY CROSSED TOO HIGH. LATER THEY DEPARTED HIKAY ON THE WRONG HEADING WHEN THEY MISREAD THE ARR CHART. THE FLC COMPLAIN ABOUT THE CHART'S LAYOUT.
Narrative: FLYING THE BOWIE 2 ARR INTO DFW (UKW.UKW2) TOLD TO EXPECT 15 MI N OF BOWIE AT 15000 FT, HOWEVER, WERE GIVEN STEP DOWN ALTS, THE LAST BEING FL240. APPROX 25 DME ON THE 015 DEG RADIAL, GIVEN CLRNC TO CROSS 15 DME AT 15000 FT. INCREASED RATE OF DSCNT TO THE MAX FEASIBLE AND TOLD COPLT TO INFORM ATC THAT WE COULD NOT MAKE THAT, HOWEVER, WOULD GIVE IT BEST SHOT. COPLT TRIED TO RELAY, HOWEVER, THERE WERE SEVERAL SIMULTANEOUS XMISSIONS, AND WE NEVER RECEIVED AN ACKNOWLEDGEMENT FROM CTR. NEXT XMISSION WAS TO CONTACT APCH CTL. IT WAS PHYSICALLY IMPOSSIBLE TO LOSE THAT ALT IN 8-10 NM. NEXT ON THE ARR WAS A NON TURBOJET HEADING OUT OF HIKAY OF 140 DEGS INSTEAD OF THE TURBOJET HEADING OF 170 DEGS OUT OF SILER. I FEEL THAT THIS ARR IS FAR TOO BUSY AND THE CHART TOO CLUTTERED FOR SAFETY NOT TO BE JEOPARDIZED. TURBOJET, NON TURBOJET, ALL ACFT ON SAME PAGE. MAKE 2 ARRS!
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.