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A B727 on A300 at FL290 to sju experiences severe turbulence and descends to FL270. An emergency was declared with ny radio.
| Attributes | |
| ACN | 405875 |
| Time | |
| Date | 199806 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bda |
| State Reference | FO |
| Altitude | msl bound lower : 27000 msl bound upper : 29000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other other |
| Route In Use | enroute : atlantic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 405875 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 406184 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter other non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : exited adverse environment flight crew : declared emergency |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
En route from phl to sju on A300 38 mi north of downt encountered severe turbulence. Used captain emergency authority/authorized to descend from FL290 to FL270. No aircraft were observed either on TCASII or visually. Shortly after declaring an emergency ATC through oceanic cleared us to FL270. Flight attendants had already put away carts and taken their seats, therefore, no injuries, no known damage to aircraft.
Original NASA ASRS Text
Title: A B727 ON A300 AT FL290 TO SJU EXPERIENCES SEVERE TURB AND DSNDS TO FL270. AN EMER WAS DECLARED WITH NY RADIO.
Narrative: ENRTE FROM PHL TO SJU ON A300 38 MI N OF DOWNT ENCOUNTERED SEVERE TURB. USED CAPT EMER AUTH TO DSND FROM FL290 TO FL270. NO ACFT WERE OBSERVED EITHER ON TCASII OR VISUALLY. SHORTLY AFTER DECLARING AN EMER ATC THROUGH OCEANIC CLRED US TO FL270. FLT ATTENDANTS HAD ALREADY PUT AWAY CARTS AND TAKEN THEIR SEATS, THEREFORE, NO INJURIES, NO KNOWN DAMAGE TO ACFT.
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.