 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An air carrier with ZJX at FL340 initiated an ATC directed climb to FL360 only to discover the clearance was for a company aircraft with similar a call sign flying on a parallel course.
| Attributes | |
| ACN | 847923 |
| Time | |
| Date | 200908 |
| Place | |
| Locale Reference | ZJX.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 50 Flight Crew Total 11000 Flight Crew Type 3000 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance |
Narrative:
Operating at cruise FL340 direct to szw abeam gnv. We were looking at company; also going to our destination; just off to the left also level at FL340. ZJX center issued us a clearance to climb to climb to FL360. I assumed it was due to our close spacing with company. After checking our altitude capability we read back the clearance. ZJX later asked our altitude. We reported climbing to FL360. ZJX told us the climb was for company and to descend back to FL340. We told him we heard our call sign and read the clearance back. He said 'no problem' and issued a climb to company; who had not previously read back or initiated a climbout of FL340. We continue to have problems with similar flight numbers operating the same areas at the same time. We used the proper altitude verification procedures and ATC read back; but that doesn't help when the center is confused by our flight number system.
Original NASA ASRS Text
Title: An air carrier with ZJX at FL340 initiated an ATC directed climb to FL360 only to discover the clearance was for a company aircraft with similar a call sign flying on a parallel course.
Narrative: Operating at cruise FL340 direct to SZW abeam GNV. We were looking at company; also going to our destination; just off to the left also level at FL340. ZJX Center issued us a clearance to climb to climb to FL360. I assumed it was due to our close spacing with company. After checking our altitude capability we read back the clearance. ZJX later asked our altitude. We reported climbing to FL360. ZJX told us the climb was for company and to descend back to FL340. We told him we heard our call sign and read the clearance back. He said 'no problem' and issued a climb to company; who had not previously read back or initiated a climbout of FL340. We continue to have problems with similar flight numbers operating the same areas at the same time. We used the proper altitude verification procedures and ATC read back; but that doesn't help when the Center is confused by our flight number system.
Data retrieved from NASA's ASRS site as of April 2012 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.