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2 air carrier's in holing pattern at the same pattern at the same assigned altitude resulting in less than standard separation. Similar sounding call sign caused ATC confusion. Aircraft being worked by different ATC facilities.
| Attributes | |
| ACN | 320394 |
| Time | |
| Date | 199510 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : clm airport : cdg |
| State Reference | FO |
| Altitude | msl bound lower : 16000 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : lfff tracon : cdg tower : sea |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 10500 flight time type : 8000 |
| ASRS Report | 320394 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 2600 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
While holding on the published holding at susin for cdg arrival, I noticed another aircraft passing within 1/2 mi on our right. I asked cdg arrival the altitude of the passing traffic at our 3 O'clock position. Arrival stated aircraft is at FL160. I further questioned, as we were at FL160, if we should both be in the holding pattern and at the same altitude. We were then told that the other aircraft was at FL160. I then requested FL150. We were told to maintain FL160 and the other aircraft was climbing to FL170. Arrival explained that there was coordination problem between arrival (that was controling us) and paris radar (center) that was controling the other aircraft. The company has assigned like call signs. Our flight is air carrier xx the other aircraft, also company with call sign of air carrier xy. Because we are cargo aircraft we do not have TCASII. Susin is 14 DME on the 147 degree from clm VOR. I feel that call signs, different controllers controling same area, no TCASII and language contributed to this near miss.
Original NASA ASRS Text
Title: 2 ACR'S IN HOLING PATTERN AT THE SAME PATTERN AT THE SAME ASSIGNED ALT RESULTING IN LTSS. SIMILAR SOUNDING CALL SIGN CAUSED ATC CONFUSION. ACFT BEING WORKED BY DIFFERENT ATC FACILITIES.
Narrative: WHILE HOLDING ON THE PUBLISHED HOLDING AT SUSIN FOR CDG ARR, I NOTICED ANOTHER ACFT PASSING WITHIN 1/2 MI ON OUR R. I ASKED CDG ARR THE ALT OF THE PASSING TFC AT OUR 3 O'CLOCK POS. ARR STATED ACFT IS AT FL160. I FURTHER QUESTIONED, AS WE WERE AT FL160, IF WE SHOULD BOTH BE IN THE HOLDING PATTERN AND AT THE SAME ALT. WE WERE THEN TOLD THAT THE OTHER ACFT WAS AT FL160. I THEN REQUESTED FL150. WE WERE TOLD TO MAINTAIN FL160 AND THE OTHER ACFT WAS CLBING TO FL170. ARR EXPLAINED THAT THERE WAS COORD PROB BTWN ARR (THAT WAS CTLING US) AND PARIS RADAR (CTR) THAT WAS CTLING THE OTHER ACFT. THE COMPANY HAS ASSIGNED LIKE CALL SIGNS. OUR FLT IS ACR XX THE OTHER ACFT, ALSO COMPANY WITH CALL SIGN OF ACR XY. BECAUSE WE ARE CARGO ACFT WE DO NOT HAVE TCASII. SUSIN IS 14 DME ON THE 147 DEG FROM CLM VOR. I FEEL THAT CALL SIGNS, DIFFERENT CTLRS CTLING SAME AREA, NO TCASII AND LANGUAGE CONTRIBUTED TO THIS NEAR MISS.
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.