 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of an large transport overshot descent assigned altitude due to an inadvertent autoplt disconnect.
| Attributes | |
| ACN | 323760 |
| Time | |
| Date | 199512 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | msl bound lower : 10400 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| 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 |
| Experience | flight time last 90 days : 150 flight time total : 12600 flight time type : 11300 |
| ASRS Report | 323760 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| 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:
PF did not level off at assigned altitude (11000 ft) and descended to 10400 ft before climbing back to 11000 ft. Cause was inadvertent autoplt disconnect while flying localizer inbound to runway 4R ILS in boston. Good recognition of altitude deviation and quick reaction to recover was made.
Original NASA ASRS Text
Title: FLC OF AN LGT OVERSHOT DSCNT ASSIGNED ALT DUE TO AN INADVERTENT AUTOPLT DISCONNECT.
Narrative: PF DID NOT LEVEL OFF AT ASSIGNED ALT (11000 FT) AND DSNDED TO 10400 FT BEFORE CLBING BACK TO 11000 FT. CAUSE WAS INADVERTENT AUTOPLT DISCONNECT WHILE FLYING LOC INBOUND TO RWY 4R ILS IN BOSTON. GOOD RECOGNITION OF ALTDEV AND QUICK REACTION TO RECOVER WAS MADE.
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.