ACR LGT FGT SUFFERS A BIRD STRIKE IN A NIGHT OP. AFTER A CURSORY POSTFLT INSPECTION AT DEST ARPT; CONTINUES ON TO ULTIMATE DEST. (MOST LIKELY A DUCK; AS GULLS DON'T FLY THAT HIGH AT NIGHT).

Narrative

WHILE ON DSCNT INTO OAKLAND ON THE NIGHT OF APR/XX/93 THE ACFT HIT A BIRD (I BELIEVE IT IS A SEAGULL). AT THE TIME; WE WERE LEVEL AT 7000 FT MSL APPROX 10 MI N OF THE SAUSALITO VOR. AFTER LNDG IN OAKLAND WE INSPECTED THE ACFT FOR DAMAGE. DURING OUR INSPECTION WE FOUND EVIDENCE OF THE BIRD STRIKE ON THE L SIDE OF THE ACFT. THE BIRD APPEARED TO STRIKE THE PITOT TUBE AND THEN TRAVEL AFT TO STRIKE THE WING BREAKING INTO AT LEAST 3 PIECES. AT LEAST 1 PIECE OF THE BIRD WENT INTO THE #1 ENG. OUR PRELIMINARY INVESTIGATION FOUND NO VISIBLE DAMAGE TO THE ENG. AFTER DISCUSSION WITH MAINT; WE DECIDED TO CONTINUE TO OUR FINAL DEST. IN SEATTLE; A THROUGH INSPECTION REVEALED A DAMAGED SECOND STAGE OF THE COMPRESSOR SECTION. THE CORRECTIVE ACTION WAS TO REPLACE THE COMPRESSOR SECTION. HUMAN PERFORMANCE AND PERCEPTIONS: WE ONLY INSPECTED THE FIRST STAGE AND EXHAUST STAGE BLADES ON OUR INITIAL INSPECTION IN OAKLAND BECAUSE WE ASSUMED THAT IT WOULD SHOW THE DAMAGE THERE FIRST. WE SAW NO DAMAGE OTHER THAN FEATHERS ON 1 INLET GUIDE VANE AND FELT NO OTHER INSPECTION WAS NECESSARY. WE CONTINUED THE FLT TO DEST BASED ON THIS ASSUMPTION. ALTHOUGH THERE WAS NO VISIBLE DAMAGE; IT MIGHT BE BETTER TO GND THE ACFT UNTIL MAINT CAN BORESCOPE THE ENG.