Passenger sees ice accumulation on top of wing and reports it to cabin crew. Aircraft towed back int...

Attributes
ACN	298028
Time
Date	199503
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pdx
State Reference	OR
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-83
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer pilot : instrument pilot : commercial
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 2200
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We had landed at pdx after a short flight from sea. About 20 mins before departure it started raining quite hard. With the rain were ice pellets and sheet. This all stopped shortly before pushback. The wings were examined by my first officer and an company mechanic trained in our anti-deice procedures. The outside air temperature was in the mid-40's. The rain and ice pellets (slush) were not adhering to the wings. There was no frost, ice, or snow adhering to any surface of our aircraft. The consensus was that we did not require deicing. As we pushed back, a passenger told a flight attendant that he saw some slush on our wing. We immediately stopped and had the aircraft deiced from top to bottom, front to back, and then departed.

Original NASA ASRS Text

Title: PAX SEES ICE ACCUMULATION ON TOP OF WING AND RPTS IT TO CABIN CREW. ACFT TOWED BACK INTO GATE FOR DEICING.

Narrative: WE HAD LANDED AT PDX AFTER A SHORT FLT FROM SEA. ABOUT 20 MINS BEFORE DEP IT STARTED RAINING QUITE HARD. WITH THE RAIN WERE ICE PELLETS AND SHEET. THIS ALL STOPPED SHORTLY BEFORE PUSHBACK. THE WINGS WERE EXAMINED BY MY FO AND AN COMPANY MECH TRAINED IN OUR ANTI-DEICE PROCS. THE OUTSIDE AIR TEMP WAS IN THE MID-40'S. THE RAIN AND ICE PELLETS (SLUSH) WERE NOT ADHERING TO THE WINGS. THERE WAS NO FROST, ICE, OR SNOW ADHERING TO ANY SURFACE OF OUR ACFT. THE CONSENSUS WAS THAT WE DID NOT REQUIRE DEICING. AS WE PUSHED BACK, A PAX TOLD A FLT ATTENDANT THAT HE SAW SOME SLUSH ON OUR WING. WE IMMEDIATELY STOPPED AND HAD THE ACFT DEICED FROM TOP TO BOTTOM, FRONT TO BACK, AND THEN DEPARTED.

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.

Passenger sees ice accumulation on top of wing and reports it to cabin crew. Aircraft towed back into gate for deicing.