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Captain of an large transport overshot descent clearance on a STAR arrival due to distraction of WX avoidance, review of STAR and receiving further clearance through first officer from ATC. He recognized his own error and returned to assigned altitude.
| Attributes | |
| ACN | 374707 |
| Time | |
| Date | 199707 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sea |
| State Reference | WA |
| Altitude | msl bound lower : 23350 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zse |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | other other : other pilot : instrument pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 4500 flight time type : 900 |
| ASRS Report | 374707 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 18000 flight time type : 9500 |
| ASRS Report | 375050 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Captain flying. Cleared from FL350 to FL240. Captain descended through FL240 to FL233. Immediately climbed back to FL240. There were no traffic conflicts. Supplemental information from acn 375050: at FL250 ATC asked when we could turn north, first officer answered that we were in turn north. ATC gave heading and then clearance to reintercept, which I did not understand. I asked first officer to repeat clearance to me as I was looking at the arrival (printed page) on the yoke. At this time we were giving a new heading. This is a case of too much information at one time. I descended through FL240 and recovered at FL234, climbed back to FL240.
Original NASA ASRS Text
Title: CAPT OF AN LGT OVERSHOT DSCNT CLRNC ON A STAR ARR DUE TO DISTR OF WX AVOIDANCE, REVIEW OF STAR AND RECEIVING FURTHER CLRNC THROUGH FO FROM ATC. HE RECOGNIZED HIS OWN ERROR AND RETURNED TO ASSIGNED ALT.
Narrative: CAPT FLYING. CLRED FROM FL350 TO FL240. CAPT DSNDED THROUGH FL240 TO FL233. IMMEDIATELY CLBED BACK TO FL240. THERE WERE NO TFC CONFLICTS. SUPPLEMENTAL INFO FROM ACN 375050: AT FL250 ATC ASKED WHEN WE COULD TURN N, FO ANSWERED THAT WE WERE IN TURN N. ATC GAVE HDG AND THEN CLRNC TO REINTERCEPT, WHICH I DID NOT UNDERSTAND. I ASKED FO TO REPEAT CLRNC TO ME AS I WAS LOOKING AT THE ARR (PRINTED PAGE) ON THE YOKE. AT THIS TIME WE WERE GIVING A NEW HDG. THIS IS A CASE OF TOO MUCH INFO AT ONE TIME. I DSNDED THROUGH FL240 AND RECOVERED AT FL234, CLBED BACK TO FL240.
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.