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Widebody transport flight crew receives, reads back clearance to 15000'. On handoff, controller says only cleared to 13000'.
| Attributes | |
| ACN | 134163 |
| Time | |
| Date | 199001 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 13000 msl bound upper : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 4 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 20 flight time total : 10000 |
| ASRS Report | 134163 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 50 flight time total : 8000 |
| ASRS Report | 134281 |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation Inter Facility Coordination Failure |
Narrative:
On initial contact with coast departure control, we reported leaving 13000 for 15000'. Coast informed us we had been cleared to only 13000' and were now cleared to 17000'. The clearance we recall approximated 'climb to 15-thousand, left heading 150 degrees, resume flipr 3 departure.' 15000' had been set into our altitude select system and read back in our response. We also recall that some interruption caused this clearance to be read to us twice. Most clrncs given during busy hours are spoken too rapidly, especially clrncs including 3 or more separate commands. All 3 pilots were wearing headsets. The captain and first officer were using molded ear pieces.
Original NASA ASRS Text
Title: WDB FLT CREW RECEIVES, READS BACK CLRNC TO 15000'. ON HANDOFF, CTLR SAYS ONLY CLEARED TO 13000'.
Narrative: ON INITIAL CONTACT WITH COAST DEP CTL, WE RPTED LEAVING 13000 FOR 15000'. COAST INFORMED US WE HAD BEEN CLRED TO ONLY 13000' AND WERE NOW CLRED TO 17000'. THE CLRNC WE RECALL APPROXIMATED 'CLB TO 15-THOUSAND, LEFT HDG 150 DEGS, RESUME FLIPR 3 DEP.' 15000' HAD BEEN SET INTO OUR ALT SELECT SYS AND READ BACK IN OUR RESPONSE. WE ALSO RECALL THAT SOME INTERRUPTION CAUSED THIS CLRNC TO BE READ TO US TWICE. MOST CLRNCS GIVEN DURING BUSY HRS ARE SPOKEN TOO RAPIDLY, ESPECIALLY CLRNCS INCLUDING 3 OR MORE SEPARATE COMMANDS. ALL 3 PLTS WERE WEARING HEADSETS. THE CAPT AND F/O WERE USING MOLDED EAR PIECES.
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.