 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Reported loss of separation between an air carrier B737 who apparently climbed through the assigned altitude of FL230 and conflicted with an air carrier B727 at FL240.
| Attributes | |
| ACN | 400810 |
| Time | |
| Date | 199804 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : esl |
| State Reference | WV |
| Altitude | msl bound lower : 24000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc tower : zzz |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 10 |
| ASRS Report | 400810 |
| Person 2 | |
| Affiliation | government : faa |
| Function | other personnel other |
| Qualification | controller : developmental |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Pilot Deviation |
Narrative:
I was radar training during a moderately busy session. We were using the backup frequencys which were quite scratchy. My trainee climbed aircraft a to FL230. Aircraft B was converging at FL240. I took over frequencys because it got too busy for my trainee. I climbed another aircraft (aircraft C) to FL240. I received no answer from aircraft C. Aircraft a climbed through FL230. At the same time aircraft a questioned his clearance and I expedited aircraft a back to FL230.
Original NASA ASRS Text
Title: RPTED LOSS OF SEPARATION BTWN AN ACR B737 WHO APPARENTLY CLBED THROUGH THE ASSIGNED ALT OF FL230 AND CONFLICTED WITH AN ACR B727 AT FL240.
Narrative: I WAS RADAR TRAINING DURING A MODERATELY BUSY SESSION. WE WERE USING THE BACKUP FREQS WHICH WERE QUITE SCRATCHY. MY TRAINEE CLBED ACFT A TO FL230. ACFT B WAS CONVERGING AT FL240. I TOOK OVER FREQS BECAUSE IT GOT TOO BUSY FOR MY TRAINEE. I CLBED ANOTHER ACFT (ACFT C) TO FL240. I RECEIVED NO ANSWER FROM ACFT C. ACFT A CLBED THROUGH FL230. AT THE SAME TIME ACFT A QUESTIONED HIS CLRNC AND I EXPEDITED ACFT A BACK TO FL230.
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.