B737-400 crew had smoke in cockpit and cabin after landing at yak.

Attributes
ACN	500593
Time
Date	200102
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : yak.airport
State Reference	AK
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	Ice Fog other
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-400
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : multi engine pilot : flight engineer pilot : atp pilot : cfi
Experience	flight time last 90 days : 240 flight time total : 12000 flight time type : 5000
ASRS Report	500593
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other anomaly
Independent Detector	other flight crewa other flight crewb other other : 3
Resolutory Action	aircraft : equipment problem dissipated flight crew : declared emergency none taken : detected after the fact other
Consequence	other other
Supplementary
Problem Areas	Weather Airport FAA
Primary Problem	Airport
Situations
Airport	procedure or policy : yak.airport runway surface condition : yak.airport

Narrative:

After touchdown in yak, reverse thrust was applied. Smoke immediately filled flight deck and passenger cabin. After stowing reverse, I had the first officer turn off packs and open outflow valve. I also unlocked flight deck door and had the 'a' flight attendant open door to evaluate passenger cabin smoke. Smoke in flight deck cleared out while some remained in cabin, but not getting worse. Called for fire equipment. Passenger deplaned through L1 door using stairs quickly. Air carrier mechanic found large amounts of urea pellets used for runway deice around brakes and inside engine cowling. Cause of smoke was from ingestion of urea pellets in engine. I have informed company to talk to yak airport personnel about this problem and cause of smoke so they can adjust their amounts of application of urea pellets to the runway.

Original NASA ASRS Text

Title: B737-400 CREW HAD SMOKE IN COCKPIT AND CABIN AFTER LNDG AT YAK.

Narrative: AFTER TOUCHDOWN IN YAK, REVERSE THRUST WAS APPLIED. SMOKE IMMEDIATELY FILLED FLT DECK AND PAX CABIN. AFTER STOWING REVERSE, I HAD THE FO TURN OFF PACKS AND OPEN OUTFLOW VALVE. I ALSO UNLOCKED FLT DECK DOOR AND HAD THE 'A' FLT ATTENDANT OPEN DOOR TO EVALUATE PAX CABIN SMOKE. SMOKE IN FLT DECK CLRED OUT WHILE SOME REMAINED IN CABIN, BUT NOT GETTING WORSE. CALLED FOR FIRE EQUIP. PAX DEPLANED THROUGH L1 DOOR USING STAIRS QUICKLY. ACR MECH FOUND LARGE AMOUNTS OF UREA PELLETS USED FOR RWY DEICE AROUND BRAKES AND INSIDE ENG COWLING. CAUSE OF SMOKE WAS FROM INGESTION OF UREA PELLETS IN ENG. I HAVE INFORMED COMPANY TO TALK TO YAK ARPT PERSONNEL ABOUT THIS PROB AND CAUSE OF SMOKE SO THEY CAN ADJUST THEIR AMOUNTS OF APPLICATION OF UREA PELLETS TO THE RWY.

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.