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Air carrier climbing to assigned altitude of FL260. Had requested FL220. Center queried altitude FL260 and claimed they were only cleared to FL220. Descended to FL220. On checking with center after arrival bur, found the flight plan had been dropped from the computer causing the confusion.
| Attributes | |
| ACN | 349060 |
| Time | |
| Date | 199610 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dag |
| State Reference | CA |
| Altitude | msl bound lower : 22000 msl bound upper : 26000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla tower : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude 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 : 240 flight time total : 18000 flight time type : 14000 |
| ASRS Report | 349060 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : private pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 5300 flight time type : 2800 |
| ASRS Report | 349058 |
| Events | |
| Anomaly | non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Initial check-in with ZLA cleared flight to FL260. We read back FL260 and climbed to the assigned altitude. Shortly after leveloff, center asked our altitude. We replied 'FL260' and he said, 'you were supposed to be at FL220, descend now to FL220!' we rapidly descended to FL220 with no further incident. We called the ZLA manager upon landing in bur to find that our flight plan had dropped out of the system, creating a confusion factor. No further action was taken.
Original NASA ASRS Text
Title: ACR CLBING TO ASSIGNED ALT OF FL260. HAD REQUESTED FL220. CTR QUERIED ALT FL260 AND CLAIMED THEY WERE ONLY CLRED TO FL220. DSNDED TO FL220. ON CHKING WITH CTR AFTER ARR BUR, FOUND THE FLT PLAN HAD BEEN DROPPED FROM THE COMPUTER CAUSING THE CONFUSION.
Narrative: INITIAL CHK-IN WITH ZLA CLRED FLT TO FL260. WE READ BACK FL260 AND CLBED TO THE ASSIGNED ALT. SHORTLY AFTER LEVELOFF, CTR ASKED OUR ALT. WE REPLIED 'FL260' AND HE SAID, 'YOU WERE SUPPOSED TO BE AT FL220, DSND NOW TO FL220!' WE RAPIDLY DSNDED TO FL220 WITH NO FURTHER INCIDENT. WE CALLED THE ZLA MGR UPON LNDG IN BUR TO FIND THAT OUR FLT PLAN HAD DROPPED OUT OF THE SYS, CREATING A CONFUSION FACTOR. NO FURTHER ACTION WAS TAKEN.
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.