37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 315555 |
Time | |
Date | 199509 |
Day | Sun |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | atc facility : iah |
State Reference | TX |
Altitude | msl bound lower : 10000 msl bound upper : 10000 |
Environment | |
Flight Conditions | VMC |
Light | Night |
Aircraft 1 | |
Controlling Facilities | artcc : iah |
Operator | common carrier : air carrier |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | descent other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : flight engineer |
Experience | flight time last 90 days : 250 flight time total : 14500 flight time type : 4200 |
ASRS Report | 315555 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | altitude deviation : crossing restriction not met non adherence : clearance other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | controller : issued new clearance none taken : insufficient time |
Consequence | Other |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | other |
Narrative:
We were cleared direct gland intersection, gland arrival, iah approach. There was a thunderstorm over gland intersection, so center cleared us direct to iah VOR. We were at 21000 ft at about 58 DME descending FL190 at 280 KTS for turbulence. At approximately 52 DME center said cleared to descend to 10000 ft, cross 40 southwest iah at 10000 ft. We looked at our DME. At this time we were at about 19500 ft when we acknowledged. This above clearance 9000 plus ft to lose in approximately 11-12 mi, no way. We told center unable. He said disregard the speed at gland of 250 KTS. We picked up speed to our vmo 340 KTS and we had the speed brake out. We did this when he had originally given us the clearance to 10000 ft. We told him again at 44 DME we were approximately 13400 ft MSL, that we were unable. 40 DME at 10000 ft he said disregard the speed at gland intersection. We couldn't descend any faster and we didn't get level at 10000 ft till 35 DME. The controller asked us to report level 10000 ft which we did at 35 DME. We were never given lower altitude until we were too close to that restr. We were being stepped down due to company flight that was ahead of us. This aircraft does not come down like a B727. Controllers need to remember the new aircraft with the new wings with less sweep can come down so fast, 5000-6000 ft tops at vmo. Give us a slow speed and the rate really slows down.
Original NASA ASRS Text
Title: ATC XING RESTR TOO LATE FOR COMPLIANCE.
Narrative: WE WERE CLRED DIRECT GLAND INTXN, GLAND ARR, IAH APCH. THERE WAS A TSTM OVER GLAND INTXN, SO CTR CLRED US DIRECT TO IAH VOR. WE WERE AT 21000 FT AT ABOUT 58 DME DSNDING FL190 AT 280 KTS FOR TURB. AT APPROX 52 DME CTR SAID CLRED TO DSND TO 10000 FT, CROSS 40 SW IAH AT 10000 FT. WE LOOKED AT OUR DME. AT THIS TIME WE WERE AT ABOUT 19500 FT WHEN WE ACKNOWLEDGED. THIS ABOVE CLRNC 9000 PLUS FT TO LOSE IN APPROX 11-12 MI, NO WAY. WE TOLD CTR UNABLE. HE SAID DISREGARD THE SPD AT GLAND OF 250 KTS. WE PICKED UP SPD TO OUR VMO 340 KTS AND WE HAD THE SPD BRAKE OUT. WE DID THIS WHEN HE HAD ORIGINALLY GIVEN US THE CLRNC TO 10000 FT. WE TOLD HIM AGAIN AT 44 DME WE WERE APPROX 13400 FT MSL, THAT WE WERE UNABLE. 40 DME AT 10000 FT HE SAID DISREGARD THE SPD AT GLAND INTXN. WE COULDN'T DSND ANY FASTER AND WE DIDN'T GET LEVEL AT 10000 FT TILL 35 DME. THE CTLR ASKED US TO RPT LEVEL 10000 FT WHICH WE DID AT 35 DME. WE WERE NEVER GIVEN LOWER ALT UNTIL WE WERE TOO CLOSE TO THAT RESTR. WE WERE BEING STEPPED DOWN DUE TO COMPANY FLT THAT WAS AHEAD OF US. THIS ACFT DOES NOT COME DOWN LIKE A B727. CTLRS NEED TO REMEMBER THE NEW ACFT WITH THE NEW WINGS WITH LESS SWEEP CAN COME DOWN SO FAST, 5000-6000 FT TOPS AT VMO. GIVE US A SLOW SPD AND THE RATE REALLY SLOWS DOWN.
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.