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A G1159 cpr flight descends 500 ft below its assigned altitude when on the norwich arrival to bos, ma.
| Attributes | |
| ACN | 504770 |
| Time | |
| Date | 200103 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : inndy |
| State Reference | RI |
| Altitude | msl bound lower : 7500 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : a90.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Gulfstream I (Large Turboprop) |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other vortac |
| Route In Use | arrival : on vectors arrival star : norwich |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 8200 flight time type : 350 |
| ASRS Report | 504770 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 100 |
| ASRS Report | 504277 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued advisory flight crew : returned to assigned altitude |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were being vectored, transitioning from the en route to approach phase and in a descent. We had been cleared to 8000 ft. Either the autoplt did not capture the altitude or the trim wheel was moved and we descended through the assigned altitude. The controller called at 7700 ft and asked where we wre going. The captain immediately took over manually and climbed back up. I believe we reached 7500 ft before recovery.
Original NASA ASRS Text
Title: A G1159 CPR FLT DSNDS 500 FT BELOW ITS ASSIGNED ALT WHEN ON THE NORWICH ARR TO BOS, MA.
Narrative: WE WERE BEING VECTORED, TRANSITIONING FROM THE ENRTE TO APCH PHASE AND IN A DSCNT. WE HAD BEEN CLRED TO 8000 FT. EITHER THE AUTOPLT DID NOT CAPTURE THE ALT OR THE TRIM WHEEL WAS MOVED AND WE DSNDED THROUGH THE ASSIGNED ALT. THE CTLR CALLED AT 7700 FT AND ASKED WHERE WE WRE GOING. THE CAPT IMMEDIATELY TOOK OVER MANUALLY AND CLBED BACK UP. I BELIEVE WE REACHED 7500 FT BEFORE RECOVERY.
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.