A B737-500 crew, upon landing at cyyz in moderate rain, experienced 2 blown tires.

Attributes
ACN	555473
Time
Date	200207
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : cyyz.airport
State Reference	ON
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Weather Elements	Thunderstorm Rain
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 21000 flight time type : 410
ASRS Report	555473
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 14000 flight time type : 325
ASRS Report	555472
Events
Anomaly	inflight encounter : weather inflight encounter : turbulence inflight encounter other other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : overrode automation other
Consequence	other other
Supplementary
Problem Areas	Flight Crew Human Performance Airport ATC Human Performance Weather
Primary Problem	Flight Crew Human Performance

Narrative:

Landing yyz at night, IFR, in moderate heavy rain (thunderstorms), gusty winds, localizer runway 24R yyz. (Runway 24R not grooved.) normal touchdown (autobrakes), applied reverse thrust resulted in diminished directional control. Came out of reverse, applied manual braking -- braking now almost diminished. Applied combination of reverse thrust, rudder, and braking to keep aircraft on centerline. As aircraft slowed to approximately 10 KTS, it skidded sideways to a stop. Due to frequency congestion and potential conflict with landing aircraft, I elected to maneuver the aircraft onto taxiway C4 (approximately 20 ft away). All appropriate checklists completed. Requested tower send equipment. No evacuate/evacuation necessary. Passenger deplaned aircraft via airstairs to busses. Postflt, crew put gear pins in. No visible damage to aircraft noted, except 2 flat tires on the #1 and #2 main tires (tires appear to have reverted rubber damage). ATC needs to advise flight crew of pertinent flight and runway information that could impact safety of flight (especially when not on ATIS). In planning, we may have selected maximum braking on antiskid system if we had that information.

Original NASA ASRS Text

Title: A B737-500 CREW, UPON LNDG AT CYYZ IN MODERATE RAIN, EXPERIENCED 2 BLOWN TIRES.

Narrative: LNDG YYZ AT NIGHT, IFR, IN MODERATE HVY RAIN (TSTMS), GUSTY WINDS, LOC RWY 24R YYZ. (RWY 24R NOT GROOVED.) NORMAL TOUCHDOWN (AUTOBRAKES), APPLIED REVERSE THRUST RESULTED IN DIMINISHED DIRECTIONAL CTL. CAME OUT OF REVERSE, APPLIED MANUAL BRAKING -- BRAKING NOW ALMOST DIMINISHED. APPLIED COMBINATION OF REVERSE THRUST, RUDDER, AND BRAKING TO KEEP ACFT ON CTRLINE. AS ACFT SLOWED TO APPROX 10 KTS, IT SKIDDED SIDEWAYS TO A STOP. DUE TO FREQ CONGESTION AND POTENTIAL CONFLICT WITH LNDG ACFT, I ELECTED TO MANEUVER THE ACFT ONTO TXWY C4 (APPROX 20 FT AWAY). ALL APPROPRIATE CHKLISTS COMPLETED. REQUESTED TWR SEND EQUIP. NO EVAC NECESSARY. PAX DEPLANED ACFT VIA AIRSTAIRS TO BUSSES. POSTFLT, CREW PUT GEAR PINS IN. NO VISIBLE DAMAGE TO ACFT NOTED, EXCEPT 2 FLAT TIRES ON THE #1 AND #2 MAIN TIRES (TIRES APPEAR TO HAVE REVERTED RUBBER DAMAGE). ATC NEEDS TO ADVISE FLC OF PERTINENT FLT AND RWY INFO THAT COULD IMPACT SAFETY OF FLT (ESPECIALLY WHEN NOT ON ATIS). IN PLANNING, WE MAY HAVE SELECTED MAX BRAKING ON ANTISKID SYS IF WE HAD THAT INFO.

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.