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Flight crew of widebody transport air carrier aircraft failed to follow assignment and speed restriction to a lower altitude.
| Attributes | |
| ACN | 247455 |
| Time | |
| Date | 199307 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : den |
| State Reference | CO |
| Altitude | msl bound lower : 35000 msl bound upper : 39000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv tracon : pap |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| 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 : 170 flight time total : 15000 flight time type : 170 |
| ASRS Report | 247455 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer pilot : instrument pilot : cfi |
| Experience | flight time last 90 days : 220 flight time total : 13000 flight time type : 2400 |
| ASRS Report | 247798 |
| Events | |
| Anomaly | non adherence : clearance other anomaly |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight wbound FL370 with approval. ATC instructed descent FL350 as per normal direction for, altitude, and change frequency. Frequency changed and PNF said flight XXX at FL370 with clearance FL350 and requested FL390. ATC called back 'standby' and went ahead with instructions for several other aircraft. ATC later returned with question 'what is your descent rate?' we responded 'waiting decision on FL390 and at FL370.' center said our clearance was to FL350, but now climb to FL390.
Original NASA ASRS Text
Title: FLC OF WDB ACR ACFT FAILED TO FOLLOW ASSIGNMENT AND SPD RESTRICTION TO A LOWER ALT.
Narrative: FLT WBOUND FL370 WITH APPROVAL. ATC INSTRUCTED DSCNT FL350 AS PER NORMAL DIRECTION FOR, ALT, AND CHANGE FREQ. FREQ CHANGED AND PNF SAID FLT XXX AT FL370 WITH CLRNC FL350 AND REQUESTED FL390. ATC CALLED BACK 'STANDBY' AND WENT AHEAD WITH INSTRUCTIONS FOR SEVERAL OTHER ACFT. ATC LATER RETURNED WITH QUESTION 'WHAT IS YOUR DSCNT RATE?' WE RESPONDED 'WAITING DECISION ON FL390 AND AT FL370.' CTR SAID OUR CLRNC WAS TO FL350, BUT NOW CLB TO FL390.
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.