Flight crew of an medium large transport failed to delay takeoff in accordance with the aircraft ici...

Attributes
ACN	294382
Time
Date	199501
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	ground : holding ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240
ASRS Report	294382
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation other

Narrative:

Did clear ice inspection at gate prior to departure. No ice detected, airframe was clear. Taxied to runway 28R for departure. Very light snow falling. While waiting to takeoff, had the first officer go to back of aircraft and inspect wings. Wings had no accumulation, airframe was clear. Just prior to departure, snow was increasing, however, still light. Again, I had the first officer return to cabin to inspect wings. Again wings were clear and temperature was above freezing. We were next for takeoff and decided no deicing was required and no holdover time was required. Takeoff was uneventful. At cruise we went back into our flight operations manual to reread our deice flow chart. At that time we read a paragraph that could be interpreted that possibly a holdover time should have been established. However, since the snow was light and temperature was well above freezing and airframe had been inspected 4 times, I decided no deicing was required. 1 note: deice flow charts and some deice information sometimes is misleading, should be better defined.

Original NASA ASRS Text

Title: FLC OF AN MLG FAILED TO DELAY TKOF IN ACCORDANCE WITH THE ACFT ICING GND HOLDOVER TIME SPECIFIED IN THE COMPANY'S PROCS.

Narrative: DID CLR ICE INSPECTION AT GATE PRIOR TO DEP. NO ICE DETECTED, AIRFRAME WAS CLR. TAXIED TO RWY 28R FOR DEP. VERY LIGHT SNOW FALLING. WHILE WAITING TO TKOF, HAD THE FO GO TO BACK OF ACFT AND INSPECT WINGS. WINGS HAD NO ACCUMULATION, AIRFRAME WAS CLR. JUST PRIOR TO DEP, SNOW WAS INCREASING, HOWEVER, STILL LIGHT. AGAIN, I HAD THE FO RETURN TO CABIN TO INSPECT WINGS. AGAIN WINGS WERE CLR AND TEMP WAS ABOVE FREEZING. WE WERE NEXT FOR TKOF AND DECIDED NO DEICING WAS REQUIRED AND NO HOLDOVER TIME WAS REQUIRED. TKOF WAS UNEVENTFUL. AT CRUISE WE WENT BACK INTO OUR FLT OPS MANUAL TO REREAD OUR DEICE FLOW CHART. AT THAT TIME WE READ A PARAGRAPH THAT COULD BE INTERPRETED THAT POSSIBLY A HOLDOVER TIME SHOULD HAVE BEEN ESTABLISHED. HOWEVER, SINCE THE SNOW WAS LIGHT AND TEMP WAS WELL ABOVE FREEZING AND AIRFRAME HAD BEEN INSPECTED 4 TIMES, I DECIDED NO DEICING WAS REQUIRED. 1 NOTE: DEICE FLOW CHARTS AND SOME DEICE INFO SOMETIMES IS MISLEADING, SHOULD BE BETTER DEFINED.

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.

Flight crew of an medium large transport failed to delay takeoff in accordance with the aircraft icing ground holdover time specified in the company's procedures.