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Air carrier MD80S flight crew react, to TCASII RA due to opposite direction traffic at FL280. ARTCC radar controller upset with MD80S altitude excursion without permission.
| Attributes | |
| ACN | 423958 |
| Time | |
| Date | 199812 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : agu |
| State Reference | FO |
| Altitude | msl bound lower : 27300 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : mmex |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 423958 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : published procedure non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | vertical : 700 |
| Supplementary | |
| Air Traffic Incident | Operational Error |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Our flight (X) was on the airway at FL280 talking to mexico city center. The local time was about XA40. The sky was clear, we received a TA from the TCASII followed by an RA, descent rate of 1500 FPM. We followed the RA command and I called the center to let him know. He got very upset that we left our altitude without permission. The traffic (Y) passed over us at a TCASII separation of 700 ft. We returned to FL280 when the traffic cleared.
Original NASA ASRS Text
Title: ACR MD80S FLC REACT, TO TCASII RA DUE TO OPPOSITE DIRECTION TFC AT FL280. ARTCC RADAR CTLR UPSET WITH MD80S ALT EXCURSION WITHOUT PERMISSION.
Narrative: OUR FLT (X) WAS ON THE AIRWAY AT FL280 TALKING TO MEXICO CITY CTR. THE LCL TIME WAS ABOUT XA40. THE SKY WAS CLR, WE RECEIVED A TA FROM THE TCASII FOLLOWED BY AN RA, DSCNT RATE OF 1500 FPM. WE FOLLOWED THE RA COMMAND AND I CALLED THE CTR TO LET HIM KNOW. HE GOT VERY UPSET THAT WE LEFT OUR ALT WITHOUT PERMISSION. THE TFC (Y) PASSED OVER US AT A TCASII SEPARATION OF 700 FT. WE RETURNED TO FL280 WHEN THE TFC CLRED.
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.