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Air carrier large transport aircraft captain momentarily deviated from assigned altitude due to WX turbulence.
| Attributes | |
| ACN | 204395 |
| Time | |
| Date | 199203 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : flm |
| State Reference | KY |
| Altitude | msl bound lower : 25000 msl bound upper : 25400 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : ztl |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 204395 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : regained aircraft control other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Upon leveling off at intermediate altitude of 25000 ft, en route from clt to ord, 200 NM southeast flm in an area of moderate turbulence, the altitude was exceeded by 400 ft to 25400 ft with an immediate correction back to 25000 ft. ATC inquired about our altitude. Our response was that we are level at 25000 ft which we were when questioned. Another aircraft was at 26000 ft targeted by ATC.
Original NASA ASRS Text
Title: ACR LGT ACFT CAPT MOMENTARILY DEVIATED FROM ASSIGNED ALT DUE TO WX TURB.
Narrative: UPON LEVELING OFF AT INTERMEDIATE ALT OF 25000 FT, ENRTE FROM CLT TO ORD, 200 NM SE FLM IN AN AREA OF MODERATE TURB, THE ALT WAS EXCEEDED BY 400 FT TO 25400 FT WITH AN IMMEDIATE CORRECTION BACK TO 25000 FT. ATC INQUIRED ABOUT OUR ALT. OUR RESPONSE WAS THAT WE ARE LEVEL AT 25000 FT WHICH WE WERE WHEN QUESTIONED. ANOTHER ACFT WAS AT 26000 FT TARGETED BY ATC.
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.