37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 449330 |
Time | |
Date | 199909 |
Day | Thu |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | navaid : sjc.vor |
State Reference | CA |
Altitude | msl bound lower : 13500 msl bound upper : 14000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zoa.artcc |
Operator | common carrier : air carrier |
Make Model Name | B727 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Navigation In Use | other vortac |
Flight Phase | climbout : vacating altitude |
Route In Use | departure sid : loupe 9 |
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 : 180 flight time total : 14000 flight time type : 5000 |
ASRS Report | 449330 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : multi engine pilot : instrument pilot : commercial |
Events | |
Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : published procedure other anomaly other |
Independent Detector | atc equipment other atc equipment : radar other controllera other flight crewa |
Resolutory Action | controller : issued advisory none taken : insufficient time |
Consequence | faa : reviewed incident with flight crew |
Supplementary | |
Problem Areas | Flight Crew Human Performance Chart Or Publication ATC Human Performance |
Primary Problem | ATC Human Performance |
Narrative:
We (X) departed sjc on the loupe nine departure. Departure control cleared us to climb unrestr to 12000 ft. Later cleared us to climb to FL230 cross the sjc VOR at 12000 ft resume the loupe 9 departure. As we crossed the sjc VOR at 12000 ft we switched to ZOA. New controller then reclred us to climb to FL230. I repeated back 'cleared unrestr to FL230.' we had been climbing at best angle (vx) and lowered the climb rate to approximately 500 FPM to accelerate. At approximately the 8 DME fix at 13500 ft the controller asked if we had leveled off. I replied we were accelerating. His concern seemed to be that we didn't make the crossing restr 14000 ft at 8 DME on the loupe 9. I have looked in our flight operations manual (ATC section) and it states clearly that, when a controller issues a new cleared altitude or restates a previous cleared altitude all altitude restrs are canceled including those on a SID. I asked the controller if there was a misunderstanding? He again asked if we had leveled off. I said we had not but had reduced the climb rate to accelerate. He said there was no problem. I'm still confused as to what his point was. If he really wanted us to make the altitude restrs he should have restated comply with restrs when he restated our cleared altitude. I gave him the chance to correct this when I confirmed his clearance with our understanding comment of climb unrestr to FL230. This frequency was not busy. I hope this isn't the beginning of the new ATC policy of not listening to or correcting readback of clrncs.
Original NASA ASRS Text
Title: ACR B727 FLC CHALLENGED BY ZOA CTLR ABOUT COMPLYING WITH LOUPE SID RESTR.
Narrative: WE (X) DEPARTED SJC ON THE LOUPE NINE DEP. DEP CTL CLRED US TO CLB UNRESTR TO 12000 FT. LATER CLRED US TO CLB TO FL230 CROSS THE SJC VOR AT 12000 FT RESUME THE LOUPE 9 DEP. AS WE CROSSED THE SJC VOR AT 12000 FT WE SWITCHED TO ZOA. NEW CTLR THEN RECLRED US TO CLB TO FL230. I REPEATED BACK 'CLRED UNRESTR TO FL230.' WE HAD BEEN CLBING AT BEST ANGLE (VX) AND LOWERED THE CLB RATE TO APPROX 500 FPM TO ACCELERATE. AT APPROX THE 8 DME FIX AT 13500 FT THE CTLR ASKED IF WE HAD LEVELED OFF. I REPLIED WE WERE ACCELERATING. HIS CONCERN SEEMED TO BE THAT WE DIDN'T MAKE THE XING RESTR 14000 FT AT 8 DME ON THE LOUPE 9. I HAVE LOOKED IN OUR FLT OPS MANUAL (ATC SECTION) AND IT STATES CLRLY THAT, WHEN A CTLR ISSUES A NEW CLRED ALT OR RESTATES A PREVIOUS CLRED ALT ALL ALT RESTRS ARE CANCELED INCLUDING THOSE ON A SID. I ASKED THE CTLR IF THERE WAS A MISUNDERSTANDING? HE AGAIN ASKED IF WE HAD LEVELED OFF. I SAID WE HAD NOT BUT HAD REDUCED THE CLB RATE TO ACCELERATE. HE SAID THERE WAS NO PROB. I'M STILL CONFUSED AS TO WHAT HIS POINT WAS. IF HE REALLY WANTED US TO MAKE THE ALT RESTRS HE SHOULD HAVE RESTATED COMPLY WITH RESTRS WHEN HE RESTATED OUR CLRED ALT. I GAVE HIM THE CHANCE TO CORRECT THIS WHEN I CONFIRMED HIS CLRNC WITH OUR UNDERSTANDING COMMENT OF CLB UNRESTR TO FL230. THIS FREQ WAS NOT BUSY. I HOPE THIS ISN'T THE BEGINNING OF THE NEW ATC POLICY OF NOT LISTENING TO OR CORRECTING READBACK OF CLRNCS.
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.