Narrative:

After flight pvd to jfk was loaded, we started to taxi. We were advised by ground of ponding up to 12' (due to thunderstorm that passed over approximately 20 min prior). As we taxied on the ramp, we picked what appeared to be a shallow area of water and proceeded cautiously. Area of entry was deeper than anticipated and water was taken up by both propellers into engines causing flameouts. I immediately pulled both stop and feather buttons and pushed stop buttons. First officer reported small fire at right engine intake. I pushed fire bottle to extinguish. Passenger deplaned. Elapsed time 10-15 min. Later inspection showed right propeller slightly bent, left propeller seals out. Because of the illusion factor os standing water, to avoid this situation in the future with standing water of any depth, it needs to be avoided by this type of aircraft or any with low propeller clearance. This is due to possible siphon effect by propellers even if propeller clearance is available or improper judgement of water depth.

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Original NASA ASRS Text

Title: SMT TAXIING ON RAMP AT PVD ENCOUNTERED STANDING WATER DEEP ENOUGH TO PICK UP WATER AND CAUSE ENGINES TO INGEST WATER.

Narrative: AFTER FLT PVD TO JFK WAS LOADED, WE STARTED TO TAXI. WE WERE ADVISED BY GND OF PONDING UP TO 12' (DUE TO TSTM THAT PASSED OVER APPROX 20 MIN PRIOR). AS WE TAXIED ON THE RAMP, WE PICKED WHAT APPEARED TO BE A SHALLOW AREA OF WATER AND PROCEEDED CAUTIOUSLY. AREA OF ENTRY WAS DEEPER THAN ANTICIPATED AND WATER WAS TAKEN UP BY BOTH PROPS INTO ENGINES CAUSING FLAMEOUTS. I IMMEDIATELY PULLED BOTH STOP AND FEATHER BUTTONS AND PUSHED STOP BUTTONS. F/O REPORTED SMALL FIRE AT RIGHT ENGINE INTAKE. I PUSHED FIRE BOTTLE TO EXTINGUISH. PAX DEPLANED. ELAPSED TIME 10-15 MIN. LATER INSPECTION SHOWED RIGHT PROP SLIGHTLY BENT, LEFT PROP SEALS OUT. BECAUSE OF THE ILLUSION FACTOR OS STANDING WATER, TO AVOID THIS SITUATION IN THE FUTURE WITH STANDING WATER OF ANY DEPTH, IT NEEDS TO BE AVOIDED BY THIS TYPE OF ACFT OR ANY WITH LOW PROP CLRNC. THIS IS DUE TO POSSIBLE SIPHON EFFECT BY PROPS EVEN IF PROP CLRNC IS AVAILABLE OR IMPROPER JUDGEMENT OF WATER DEPTH.

Data retrieved from NASA's ASRS site as of August 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.