MD90 crew did not use rated engine power for takeoff, after being deiced.

Attributes
ACN	571783
Time
Date	200301
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : slc.airport
State Reference	UT
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : mri.tower
Operator	common carrier : air carrier
Make Model Name	MD-90 Series (DC-9-90) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 108 flight time total : 6202 flight time type : 1388
ASRS Report	571783
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	inflight encounter : weather non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : epr other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Weather Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

This was the second leg of the day. The WX was very clear, but it was cold. On preflight, I found light frost on the wings and fuselage and advised the captain we would have to deice. All ground operations were normal, including deice, except when the captain briefed the takeoff power setting, he selected reduced power. According to company policy, with deice fluids on the aircraft, we're supposed to use rated power. I didn't catch the error until after we started the takeoff roll. We were very light weight, the WX was clear, the runway was long, and the aircraft was performing normally, so I felt safety would have been compromised to raise the issue during the takeoff roll. After we leveled off, I advised the captain of our error.

Original NASA ASRS Text

Title: MD90 CREW DID NOT USE RATED ENG PWR FOR TKOF, AFTER BEING DEICED.

Narrative: THIS WAS THE SECOND LEG OF THE DAY. THE WX WAS VERY CLR, BUT IT WAS COLD. ON PREFLT, I FOUND LIGHT FROST ON THE WINGS AND FUSELAGE AND ADVISED THE CAPT WE WOULD HAVE TO DEICE. ALL GND OPS WERE NORMAL, INCLUDING DEICE, EXCEPT WHEN THE CAPT BRIEFED THE TKOF PWR SETTING, HE SELECTED REDUCED PWR. ACCORDING TO COMPANY POLICY, WITH DEICE FLUIDS ON THE ACFT, WE'RE SUPPOSED TO USE RATED PWR. I DIDN'T CATCH THE ERROR UNTIL AFTER WE STARTED THE TKOF ROLL. WE WERE VERY LIGHT WT, THE WX WAS CLR, THE RWY WAS LONG, AND THE ACFT WAS PERFORMING NORMALLY, SO I FELT SAFETY WOULD HAVE BEEN COMPROMISED TO RAISE THE ISSUE DURING THE TKOF ROLL. AFTER WE LEVELED OFF, I ADVISED THE CAPT OF OUR ERROR.

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.