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While at cruise at FL230 center assigned a vector around a MOA and in the same clearance he also said he can give the flight crew FL240 and let them go direct. The flight crew said that would be great and commenced their climb to FL240. Passing through FL237 center said to descend to FL230 and they were not cleared to FL240.
| Attributes | |
| ACN | 337090 |
| Time | |
| Date | 199605 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ama |
| State Reference | TX |
| Altitude | msl bound lower : 23000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw tower : law |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 270 flight time total : 6500 flight time type : 270 |
| ASRS Report | 337090 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While at cruise at FL230, center gave us a vector to go around the MOA. In the same clearance he also said he can give us FL240 and let us go direct. We said FL240 would be great. Center then started talking to some military aircraft in the MOA. We started the climb to FL240. Passing through FL237 center told us to descend to FL230 and that we were not cleared to FL240. Center stated we would have to get that clearance from the next controller. That seemed to contradict his initial statement that he could give us FL240. I feel poor communication and verification of clearance on both sides played a part in the deviation.
Original NASA ASRS Text
Title: WHILE AT CRUISE AT FL230 CTR ASSIGNED A VECTOR AROUND A MOA AND IN THE SAME CLRNC HE ALSO SAID HE CAN GIVE THE FLC FL240 AND LET THEM GO DIRECT. THE FLC SAID THAT WOULD BE GREAT AND COMMENCED THEIR CLB TO FL240. PASSING THROUGH FL237 CTR SAID TO DSND TO FL230 AND THEY WERE NOT CLRED TO FL240.
Narrative: WHILE AT CRUISE AT FL230, CTR GAVE US A VECTOR TO GO AROUND THE MOA. IN THE SAME CLRNC HE ALSO SAID HE CAN GIVE US FL240 AND LET US GO DIRECT. WE SAID FL240 WOULD BE GREAT. CTR THEN STARTED TALKING TO SOME MIL ACFT IN THE MOA. WE STARTED THE CLB TO FL240. PASSING THROUGH FL237 CTR TOLD US TO DSND TO FL230 AND THAT WE WERE NOT CLRED TO FL240. CTR STATED WE WOULD HAVE TO GET THAT CLRNC FROM THE NEXT CTLR. THAT SEEMED TO CONTRADICT HIS INITIAL STATEMENT THAT HE COULD GIVE US FL240. I FEEL POOR COM AND VERIFICATION OF CLRNC ON BOTH SIDES PLAYED A PART IN THE DEV.
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.