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B727 aircraft with descent clearance to FL270 and clearance changed to FL290. Reporter captain deviating around WX and descended 400 ft below assigned.
| Attributes | |
| ACN | 375469 |
| Time | |
| Date | 199707 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bkw |
| State Reference | WV |
| Altitude | msl bound lower : 26400 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 375469 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 375468 |
| 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:
Our initial descent clearance was to FL270. After starting down, we were reclred to FL290. Altitude alert set properly. Captain was momentarily distraction by WX and inadvertently went 400 ft below. First officer called the deviation and altitude was recovered to FL290.
Original NASA ASRS Text
Title: B727 ACFT WITH DSCNT CLRNC TO FL270 AND CLRNC CHANGED TO FL290. RPTR CAPT DEVIATING AROUND WX AND DSNDED 400 FT BELOW ASSIGNED.
Narrative: OUR INITIAL DSCNT CLRNC WAS TO FL270. AFTER STARTING DOWN, WE WERE RECLRED TO FL290. ALT ALERT SET PROPERLY. CAPT WAS MOMENTARILY DISTR BY WX AND INADVERTENTLY WENT 400 FT BELOW. FO CALLED THE DEV AND ALT WAS RECOVERED TO FL290.
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.