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Cpr Y climb through occupied altitude had less than standard separation from air carrier X. System error.
| Attributes | |
| ACN | 251843 |
| Time | |
| Date | 199309 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : djb |
| State Reference | OH |
| Altitude | msl bound lower : 11000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cak |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : direct enroute airway : zob |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 6 |
| ASRS Report | 251843 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 13200 vertical : 100 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
Narrative:
Mansfield (mfd) sector overlies akron-canton (cak) approach (080 and below) and borders next to and over cleveland approach (cle). Air carrier X checked on the frequency descending to 15000 ft. Cak called the mfd sector requesting higher on cpr Y with reference to traffic previously pointed out, about 1 1/2 mins earlier. Mfd-right approved climbing to 10000 ft on cpr X. Mfd- right immediately called back cak and told them climb to FL200 if cpr Y can get direct djb from cle approach. (Cpr Y had to be pointed out to cle.) cak responded 'okay, I'll see what they say.' mfd-right told air carrier X to cross ritzs at 11000 ft. Mfd-right then got distracted by an aircraft that called on frequency in error. Mfd-right then coordinated with cle that air carrier X had ritzs at 11000 ft. Receiving no call back from cak, mfd-right called cak to confirm cpr Y was stopping at 10000 ft. Cak replied 'no' and said cpr Y was climbing to FL200 and direct djb. Mfd-right told cak to stop cpr Y at 11000 ft, but they said cpr Y was already switched. Air carrier X was turned '50 degrees left, tight turn' by mfd-right. Air carrier X replied 'traffic in sight, we're turning.'
Original NASA ASRS Text
Title: CPR Y CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR X. SYS ERROR.
Narrative: MANSFIELD (MFD) SECTOR OVERLIES AKRON-CANTON (CAK) APCH (080 AND BELOW) AND BORDERS NEXT TO AND OVER CLEVELAND APCH (CLE). ACR X CHKED ON THE FREQ DSNDING TO 15000 FT. CAK CALLED THE MFD SECTOR REQUESTING HIGHER ON CPR Y WITH REF TO TFC PREVIOUSLY POINTED OUT, ABOUT 1 1/2 MINS EARLIER. MFD-R APPROVED CLBING TO 10000 FT ON CPR X. MFD- R IMMEDIATELY CALLED BACK CAK AND TOLD THEM CLB TO FL200 IF CPR Y CAN GET DIRECT DJB FROM CLE APCH. (CPR Y HAD TO BE POINTED OUT TO CLE.) CAK RESPONDED 'OKAY, I'LL SEE WHAT THEY SAY.' MFD-R TOLD ACR X TO CROSS RITZS AT 11000 FT. MFD-R THEN GOT DISTRACTED BY AN ACFT THAT CALLED ON FREQ IN ERROR. MFD-R THEN COORDINATED WITH CLE THAT ACR X HAD RITZS AT 11000 FT. RECEIVING NO CALL BACK FROM CAK, MFD-R CALLED CAK TO CONFIRM CPR Y WAS STOPPING AT 10000 FT. CAK REPLIED 'NO' AND SAID CPR Y WAS CLBING TO FL200 AND DIRECT DJB. MFD-R TOLD CAK TO STOP CPR Y AT 11000 FT, BUT THEY SAID CPR Y WAS ALREADY SWITCHED. ACR X WAS TURNED '50 DEGS L, TIGHT TURN' BY MFD-R. ACR X REPLIED 'TFC IN SIGHT, WE'RE TURNING.'
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.