 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Mmid controller coordinates with ZHU route and altitude that are separated from crossing traffic. Mmid xferred air carrier checked on at an altitude conflicting with 2 other air carrier's on crossing rtes.
| Attributes | |
| ACN | 460028 |
| Time | |
| Date | 200001 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : sword |
| Altitude | msl bound lower : 37000 msl bound upper : 41000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B767-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : non radar |
| Qualification | controller : radar controller : non radar |
| Experience | controller limited radar : 12.5 controller non radar : 12.5 controller radar : 12.5 controller time certified in position1 : 12 |
| ASRS Report | 460028 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
I was working the oceanic radar position in the gulf of mexico. Merida center had coordinated an air carrier X at sword intersection FL410 at XP13Z. ZHU had coordinated air carrier Y, sword intersection at XP09Z at FL370. At XA13Z, air carrier X checked on ZHU 135.77 over sword at FL370. Also, a converging aircraft had been coordinated mydia intersection at XP15 FL370. As there were 5 aircraft over sword and eliom intersection at FL370 within the required 15 mins non radar separation, as well as aircraft at sword at FL350 and at sword at FL390. I had to wait until the air carrier X crossed eliom to climb him to FL410. This provided separation for air carrier X and air carrier Z. Separation was lost with air carrier X and air carrier Y and they crossed less than 4 mins, non radar at sword. However, when air carrier X climbed to FL410 at eliom, this evasive action separated him with air carrier Z at FL370.
Original NASA ASRS Text
Title: MMID CTLR COORDINATES WITH ZHU RTE AND ALT THAT ARE SEPARATED FROM XING TFC. MMID XFERRED ACR CHKED ON AT AN ALT CONFLICTING WITH 2 OTHER ACR'S ON XING RTES.
Narrative: I WAS WORKING THE OCEANIC RADAR POS IN THE GULF OF MEXICO. MERIDA CTR HAD COORDINATED AN ACR X AT SWORD INTXN FL410 AT XP13Z. ZHU HAD COORDINATED ACR Y, SWORD INTXN AT XP09Z AT FL370. AT XA13Z, ACR X CHKED ON ZHU 135.77 OVER SWORD AT FL370. ALSO, A CONVERGING ACFT HAD BEEN COORDINATED MYDIA INTXN AT XP15 FL370. AS THERE WERE 5 ACFT OVER SWORD AND ELIOM INTXN AT FL370 WITHIN THE REQUIRED 15 MINS NON RADAR SEPARATION, AS WELL AS ACFT AT SWORD AT FL350 AND AT SWORD AT FL390. I HAD TO WAIT UNTIL THE ACR X CROSSED ELIOM TO CLB HIM TO FL410. THIS PROVIDED SEPARATION FOR ACR X AND ACR Z. SEPARATION WAS LOST WITH ACR X AND ACR Y AND THEY CROSSED LESS THAN 4 MINS, NON RADAR AT SWORD. HOWEVER, WHEN ACR X CLBED TO FL410 AT ELIOM, THIS EVASIVE ACTION SEPARATED HIM WITH ACR Z AT FL370.
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.