Narrative:

A temporary aircraft bulletin on the B737-800 requires a 270 KT airspeed restr after the application of deicing fluids to the aircraft, except in the case of type 1 fluid. The restr can be lifted after a maintenance inspection, or permanently lifted if na airframe modification has been completed. To date, this modification has been completed on many of our B737-800's. It was supposed to be my leg, but because I have less than 100 hours on this aircraft, company policy requires the captain to do takeoffs and lndgs under certain operational sits. Just prior to pushback, conditions seemed to permit me to make the takeoff, but very quickly deteriorated due to snow which also necessitated our deicing. At first, deicing personnel mentioned they would be using type 1 fluid and somewhere in the shuffle we switched to type 4 fluid instead. Our haste to remain within our determined deicing holdover time, adjusting our takeoff numbers in the FMC, having to start both engines when deicing was completed, and comply with the extra procedures associated with deicing, completion of all our required checklists (de-/anti-icing, pushback/start, after start, taxi, before takeoff), having the captain rebrief the takeoff because he would now be flying it, complying with somewhat complex taxi routing to runway at an airport that I've never flown into before and is not normally served by the B737-800. (We were on an equipment substitution for an MD88), also a last min request by tower to change departure runway (we declined). These all combined to create a situation where the temporary aircraft bulletin 270 KT airspeed restr was overlooked. Callback conversation with reporter revealed the following information: the reporter stated at the last min the ground crew advised the flight crew that type 4 deicing fluid would be used instead of type 1 and that would require a speed restr. The reporter said per the company bulletin on deicing fluids if type 1 is used no speed restr applies. The reporter stated various procedures and checklists were accomplished and created a situation where the deicing bulletin and speed restr was overlooked. The reporter said the type 1 fluid was still in our mind with no speed restr. The reporter was advised that according to the airworthiness directive the airplane is speed restr when any ground deicing/anti-icing of the horizontal stabilizer occurs.

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Original NASA ASRS Text

Title: A B737-800 WAS DEICED WITH TYPE 4 FLUID AND WAS OPERATED IN NON COMPLIANCE AT SPDS EXCEEDING THE LIMITS STATED IN AIRWORTHINESS DIRECTIVE 2002-08-20.

Narrative: A TEMPORARY ACFT BULLETIN ON THE B737-800 REQUIRES A 270 KT AIRSPD RESTR AFTER THE APPLICATION OF DEICING FLUIDS TO THE ACFT, EXCEPT IN THE CASE OF TYPE 1 FLUID. THE RESTR CAN BE LIFTED AFTER A MAINT INSPECTION, OR PERMANENTLY LIFTED IF NA AIRFRAME MODIFICATION HAS BEEN COMPLETED. TO DATE, THIS MODIFICATION HAS BEEN COMPLETED ON MANY OF OUR B737-800'S. IT WAS SUPPOSED TO BE MY LEG, BUT BECAUSE I HAVE LESS THAN 100 HRS ON THIS ACFT, COMPANY POLICY REQUIRES THE CAPT TO DO TKOFS AND LNDGS UNDER CERTAIN OPERATIONAL SITS. JUST PRIOR TO PUSHBACK, CONDITIONS SEEMED TO PERMIT ME TO MAKE THE TKOF, BUT VERY QUICKLY DETERIORATED DUE TO SNOW WHICH ALSO NECESSITATED OUR DEICING. AT FIRST, DEICING PERSONNEL MENTIONED THEY WOULD BE USING TYPE 1 FLUID AND SOMEWHERE IN THE SHUFFLE WE SWITCHED TO TYPE 4 FLUID INSTEAD. OUR HASTE TO REMAIN WITHIN OUR DETERMINED DEICING HOLDOVER TIME, ADJUSTING OUR TKOF NUMBERS IN THE FMC, HAVING TO START BOTH ENGS WHEN DEICING WAS COMPLETED, AND COMPLY WITH THE EXTRA PROCS ASSOCIATED WITH DEICING, COMPLETION OF ALL OUR REQUIRED CHKLISTS (DE-/ANTI-ICING, PUSHBACK/START, AFTER START, TAXI, BEFORE TKOF), HAVING THE CAPT REBRIEF THE TKOF BECAUSE HE WOULD NOW BE FLYING IT, COMPLYING WITH SOMEWHAT COMPLEX TAXI ROUTING TO RWY AT AN ARPT THAT I'VE NEVER FLOWN INTO BEFORE AND IS NOT NORMALLY SERVED BY THE B737-800. (WE WERE ON AN EQUIP SUBSTITUTION FOR AN MD88), ALSO A LAST MIN REQUEST BY TWR TO CHANGE DEP RWY (WE DECLINED). THESE ALL COMBINED TO CREATE A SIT WHERE THE TEMPORARY ACFT BULLETIN 270 KT AIRSPD RESTR WAS OVERLOOKED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED AT THE LAST MIN THE GND CREW ADVISED THE FLT CREW THAT TYPE 4 DEICING FLUID WOULD BE USED INSTEAD OF TYPE 1 AND THAT WOULD REQUIRE A SPD RESTR. THE RPTR SAID PER THE COMPANY BULLETIN ON DEICING FLUIDS IF TYPE 1 IS USED NO SPD RESTR APPLIES. THE RPTR STATED VARIOUS PROCS AND CHKLISTS WERE ACCOMPLISHED AND CREATED A SIT WHERE THE DEICING BULLETIN AND SPD RESTR WAS OVERLOOKED. THE RPTR SAID THE TYPE 1 FLUID WAS STILL IN OUR MIND WITH NO SPD RESTR. THE RPTR WAS ADVISED THAT ACCORDING TO THE AIRWORTHINESS DIRECTIVE THE AIRPLANE IS SPD RESTR WHEN ANY GND DEICING/ANTI-ICING OF THE HORIZ STABILIZER OCCURS.

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.