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First officer of an medium large transport failed to start descent after ATC issued descent instructions.
| Attributes | |
| ACN | 303810 |
| Time | |
| Date | 199505 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bsr |
| State Reference | CA |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp pilot : instrument pilot : flight engineer |
| Experience | controller non radar : 3 controller supervisory : 1 flight time last 90 days : 150 flight time total : 9000 flight time type : 2000 |
| ASRS Report | 303810 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Center told us to descend to FL240. I acknowledged and set it in the altitude window. First officer acknowledged but didn't start down. He apparently thought it was a discretionary descent. I got distracted and didn't catch it. Shortly thereafter, center asked us to confirm altitude. We then told him we were starting down.
Original NASA ASRS Text
Title: FO OF AN MLG FAILED TO START DSCNT AFTER ATC ISSUED DSCNT INSTRUCTIONS.
Narrative: CTR TOLD US TO DSND TO FL240. I ACKNOWLEDGED AND SET IT IN THE ALT WINDOW. FO ACKNOWLEDGED BUT DIDN'T START DOWN. HE APPARENTLY THOUGHT IT WAS A DISCRETIONARY DSCNT. I GOT DISTRACTED AND DIDN'T CATCH IT. SHORTLY THEREAFTER, CTR ASKED US TO CONFIRM ALT. WE THEN TOLD HIM WE WERE STARTING DOWN.
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.