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MD88 aircraft in descent overshot altitude by 300 ft when approach controller intervened and issued new instructions and providing traffic information.
| Attributes | |
| ACN | 380630 |
| Time | |
| Date | 199709 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 10700 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 380630 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 5000 flight time type : 450 |
| ASRS Report | 381096 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were on an assigned heading of 340 degrees, descending 10000 ft MSL. Passing 10700 ft MSL, approach control said check altitude, climb immediately to 11000 ft MSL and turn to heading 270 degrees. I selected 1500 ft climb and heading 270 degrees on autoplt. Turning through heading 300 degrees and climbing through 10800 ft approach called again with the same instructions and pointed out brasilia traffic to us. We leveled off at 11000 ft MSL and flew heading 270 degrees. We did not see the traffic and never received a TCASII TA or TA. A contributing factor was my anticipation of a turn and a descent to 7000 ft turning downwind. During the arrival we had been vectored off the SID 4 times and slowed from 250 KTS to 210 KTS to 180 KTS to 170 KTS. I wasn't sure what the controller was trying to do but I trusted him and thought it was for separation and sequencing.
Original NASA ASRS Text
Title: MD88 ACFT IN DSCNT OVERSHOT ALT BY 300 FT WHEN APCH CTLR INTERVENED AND ISSUED NEW INSTRUCTIONS AND PROVIDING TFC INFO.
Narrative: WE WERE ON AN ASSIGNED HDG OF 340 DEGS, DSNDING 10000 FT MSL. PASSING 10700 FT MSL, APCH CTL SAID CHK ALT, CLB IMMEDIATELY TO 11000 FT MSL AND TURN TO HDG 270 DEGS. I SELECTED 1500 FT CLB AND HDG 270 DEGS ON AUTOPLT. TURNING THROUGH HDG 300 DEGS AND CLBING THROUGH 10800 FT APCH CALLED AGAIN WITH THE SAME INSTRUCTIONS AND POINTED OUT BRASILIA TFC TO US. WE LEVELED OFF AT 11000 FT MSL AND FLEW HDG 270 DEGS. WE DID NOT SEE THE TFC AND NEVER RECEIVED A TCASII TA OR TA. A CONTRIBUTING FACTOR WAS MY ANTICIPATION OF A TURN AND A DSCNT TO 7000 FT TURNING DOWNWIND. DURING THE ARR WE HAD BEEN VECTORED OFF THE SID 4 TIMES AND SLOWED FROM 250 KTS TO 210 KTS TO 180 KTS TO 170 KTS. I WASN'T SURE WHAT THE CTLR WAS TRYING TO DO BUT I TRUSTED HIM AND THOUGHT IT WAS FOR SEPARATION AND SEQUENCING.
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.