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ARTCC radar controller issued wrong altitude to medium large transport and had less than standard separation with another aircraft when medium large transport descended.
| Attributes | |
| ACN | 164364 |
| Time | |
| Date | 199012 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jax |
| State Reference | FL |
| Altitude | msl bound lower : 21000 msl bound upper : 21600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude descent other |
| Route In Use | enroute airway : zjx |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 5000 flight time type : 500 |
| ASRS Report | 164364 |
| 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 |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 24000 vertical : 600 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
ZJX told us to 'descend to FL220; expect to cross 35 NM south of jax at 12000' and 250 KTS.' at 21600' center said, 'climb to FL220.' he said we were told to maintain FL220. Both the captain and I had heard FL210, set FL210 in altitude window and verified it, per our company's new altitude awareness program. Controller said there was a conflict and it would be investigated. When we landed in jax, we called center on phone and supervisor confirmed controller had given us FL210.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR ISSUED WRONG ALT TO MLG AND HAD LESS THAN STANDARD SEPARATION WITH ANOTHER ACFT WHEN MLG DESCENDED.
Narrative: ZJX TOLD US TO 'DSND TO FL220; EXPECT TO CROSS 35 NM S OF JAX AT 12000' AND 250 KTS.' AT 21600' CENTER SAID, 'CLB TO FL220.' HE SAID WE WERE TOLD TO MAINTAIN FL220. BOTH THE CAPT AND I HAD HEARD FL210, SET FL210 IN ALT WINDOW AND VERIFIED IT, PER OUR COMPANY'S NEW ALT AWARENESS PROGRAM. CTLR SAID THERE WAS A CONFLICT AND IT WOULD BE INVESTIGATED. WHEN WE LANDED IN JAX, WE CALLED CENTER ON PHONE AND SUPVR CONFIRMED CTLR HAD GIVEN US FL210.
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.