 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 crew departs after de-icing unaware that the deice crew may have failed to remove snow adhering to the top of the fuselage.
| Attributes | |
| ACN | 728842 |
| Time | |
| Date | 200702 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Snow |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 728842 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : company policies non adherence : far other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Company |
| Primary Problem | Company |
Narrative:
We were allowed to leave the deice pad with snow on the aircraft. We were at the beginning of the takeoff roll I was increasing N1 to 40%. I heard over the tower frequency; someone say something unintelligible about our company. Later; in flight; I asked the first officer if he had heard something. He said that he heard what he assumed was the air carrier jet on the taxiway (leaving their remote deice area); say; 'doesn't our company have to take snow off their roof.' the assumption here is that we were the company the air carrier pilot was referring to; and that if he was able to see 'snow on our roof' it would seem we were not adequately de-iced; even though we had left the remote de ice pad with a fresh application of type-1 and type-4. We did receive the required communication from the ground personnel; including the post de-ice confirmation that the aircraft was clean. To my knowledge this was not a non adhering snow day.
Original NASA ASRS Text
Title: B737 CREW DEPARTS AFTER DE-ICING UNAWARE THAT THE DEICE CREW MAY HAVE FAILED TO REMOVE SNOW ADHERING TO THE TOP OF THE FUSELAGE.
Narrative: WE WERE ALLOWED TO LEAVE THE DEICE PAD WITH SNOW ON THE AIRCRAFT. WE WERE AT THE BEGINNING OF THE TAKEOFF ROLL I WAS INCREASING N1 TO 40%. I HEARD OVER THE TOWER FREQUENCY; SOMEONE SAY SOMETHING UNINTELLIGIBLE ABOUT OUR COMPANY. LATER; IN FLIGHT; I ASKED THE FO IF HE HAD HEARD SOMETHING. HE SAID THAT HE HEARD WHAT HE ASSUMED WAS THE ACR JET ON THE TAXIWAY (LEAVING THEIR REMOTE DEICE AREA); SAY; 'DOESN'T OUR COMPANY HAVE TO TAKE SNOW OFF THEIR ROOF.' THE ASSUMPTION HERE IS THAT WE WERE THE COMPANY THE ACR PLT WAS REFERRING TO; AND THAT IF HE WAS ABLE TO SEE 'SNOW ON OUR ROOF' IT WOULD SEEM WE WERE NOT ADEQUATELY DE-ICED; EVEN THOUGH WE HAD LEFT THE REMOTE DE ICE PAD WITH A FRESH APPLICATION OF TYPE-1 AND TYPE-4. WE DID RECEIVE THE REQUIRED COMMUNICATION FROM THE GROUND PERSONNEL; INCLUDING THE POST DE-ICE CONFIRMATION THAT THE AIRCRAFT WAS CLEAN. TO MY KNOWLEDGE THIS WAS NOT A NON ADHERING SNOW DAY.
Data retrieved from NASA's ASRS site as of January 2009 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.