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Mlt overshot climb resulting in less than standard separation with air carrier-widebody transport cruising at FL330.
| Attributes | |
| ACN | 85405 |
| Time | |
| Date | 198804 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : flo |
| State Reference | SC |
| Altitude | msl bound lower : 32400 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc artcc : zjx tower : dlh |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 1 controller radar : 10 |
| ASRS Report | 85405 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : required legal separation non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : assigned or threatened penalties faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 600 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Widebody transport X was northbound on J207 at FL330 over flo. Mlt Y was assigned FL310 and was climbing out of rdu. The widebody transport flight was on my frequency as I had just accepted a radar handoff from ZJX. Mlt Y was handed off to ZJX from the washington sampson low sector. Apparently mlt Y's pilot climbed through his altitude and was head on with widebody transport X. I noticed the data block for mlt Y indicated FL318 when the aircraft were about 7 mi apart. I told widebody transport X to turn left heading 330 degrees immediately and called traffic. However, widebody transport X said that mlt Y had just passed them. I saw an altitude readout of FL324 on mlt Y as they passed within 1 mi. Callback conversation with reporter revealed the following: this incident took place in ZJX airspace and that facility processed a flight crew deviation. Reporter had no details as to why the mlt went through assigned altitude. ZJX computer printed the sep which was 600' and 1 mi. Reporter's experience level was determined.
Original NASA ASRS Text
Title: MLT OVERSHOT CLIMB RESULTING IN LESS THAN STANDARD SEPARATION WITH ACR-WDB CRUISING AT FL330.
Narrative: WDB X WAS NBOUND ON J207 AT FL330 OVER FLO. MLT Y WAS ASSIGNED FL310 AND WAS CLBING OUT OF RDU. THE WDB FLT WAS ON MY FREQ AS I HAD JUST ACCEPTED A RADAR HDOF FROM ZJX. MLT Y WAS HANDED OFF TO ZJX FROM THE WASHINGTON SAMPSON LOW SECTOR. APPARENTLY MLT Y'S PLT CLBED THROUGH HIS ALT AND WAS HEAD ON WITH WDB X. I NOTICED THE DATA BLOCK FOR MLT Y INDICATED FL318 WHEN THE ACFT WERE ABOUT 7 MI APART. I TOLD WDB X TO TURN LEFT HDG 330 DEGS IMMEDIATELY AND CALLED TFC. HOWEVER, WDB X SAID THAT MLT Y HAD JUST PASSED THEM. I SAW AN ALT READOUT OF FL324 ON MLT Y AS THEY PASSED WITHIN 1 MI. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: THIS INCIDENT TOOK PLACE IN ZJX AIRSPACE AND THAT FAC PROCESSED A FLT CREW DEVIATION. RPTR HAD NO DETAILS AS TO WHY THE MLT WENT THROUGH ASSIGNED ALT. ZJX COMPUTER PRINTED THE SEP WHICH WAS 600' AND 1 MI. RPTR'S EXPERIENCE LEVEL WAS DETERMINED.
Data retrieved from NASA's ASRS site as of August 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.