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Flight crew of air carrier light transport aircraft overshot descent altitude due to assessing possible bird strike damage.
| Attributes | |
| ACN | 224999 |
| Time | |
| Date | 199210 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ccr airport : smf |
| State Reference | CA |
| Altitude | msl bound lower : 4500 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sjc |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | enroute airway : suu |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 235 flight time total : 5600 flight time type : 1300 |
| ASRS Report | 224999 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 400 |
| ASRS Report | 224769 |
| Events | |
| Anomaly | altitude deviation : overshoot inflight encounter other non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During descent to our assigned altitude of 5000 ft from 7000 ft, we encountered a flock of birds at approximately 6000 ft which resulted in strikes to the aircraft. Preoccupied with damage assessment to our aircraft. We inadvertently descended below our assigned altitude. At about 4500 ft, I queried the first officer and he arrested the descent -- travis approach followed with a clearance to 4000 ft. The remainder of the flight was completed uneventfully.
Original NASA ASRS Text
Title: FLC OF ACR LTT ACFT OVERSHOT DSCNT ALT DUE TO ASSESSING POSSIBLE BIRD STRIKE DAMAGE.
Narrative: DURING DSCNT TO OUR ASSIGNED ALT OF 5000 FT FROM 7000 FT, WE ENCOUNTERED A FLOCK OF BIRDS AT APPROX 6000 FT WHICH RESULTED IN STRIKES TO THE ACFT. PREOCCUPIED WITH DAMAGE ASSESSMENT TO OUR ACFT. WE INADVERTENTLY DSNDED BELOW OUR ASSIGNED ALT. AT ABOUT 4500 FT, I QUERIED THE FO AND HE ARRESTED THE DSCNT -- TRAVIS APCH FOLLOWED WITH A CLRNC TO 4000 FT. THE REMAINDER OF THE FLT WAS COMPLETED UNEVENTFULLY.
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.