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Potential conflict with opposite direction descending traffic. Altitude deviation altitude excursion in flight crew response to TCASII RA.
| Attributes | |
| ACN | 261005 |
| Time | |
| Date | 199312 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : gcm |
| State Reference | FO |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : other oceanic enroute : atlantic enroute airway : gcm |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute : atlantic enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 1600 |
| ASRS Report | 261005 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude altitude deviation : crossing restriction not met conflict : airborne less severe non adherence : required legal separation non adherence : clearance other anomaly other other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 6000 vertical : 900 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While cruising at FL330 over pesto, experienced a TA followed by an RA. Evasive action was taken. Other aircraft was an medium large transport indicating 900 ft below. Cenamer control explained that due to communication problems with kingston that the medium large transport was given a late descent clearance from FL350 to FL310.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT WITH OPPOSITE DIRECTION DSNDING TFC. ALTDEV ALT EXCURSION IN FLC RESPONSE TO TCASII RA.
Narrative: WHILE CRUISING AT FL330 OVER PESTO, EXPERIENCED A TA FOLLOWED BY AN RA. EVASIVE ACTION WAS TAKEN. OTHER ACFT WAS AN MLG INDICATING 900 FT BELOW. CENAMER CTL EXPLAINED THAT DUE TO COM PROBS WITH KINGSTON THAT THE MLG WAS GIVEN A LATE DSCNT CLRNC FROM FL350 TO FL310.
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.