Chew on this one for awhile. The ground monkeys are now going to tell you when you do and don't need de-icing! " they are trained in this decision making"
Dear Sirs,
Lately we have faced a number of PIC refusals to the de-icing procedures and agreement for carrying out such a procedure only upon Vnukovo flight safely inspector’s arrival.
We’d like to closely draw your attention to the fact that in the circumstances when parking time of transit aircraft is 1-1.5 hours after the flight corridors at temperatures up to - 50 C, under these weather conditions, the discreet transparent ice crust can form on the cold wing, disruption of which can lead to the ice hit into the engine air intakes, damage to the engine blades and their failure during the aircraft takeoff. And this is also one of the factors which reduce the flight security level.
From our side we kindly ask you to inform the crews on the responsibility for making decisions on the aircraft departure which condition does not comply with ICAO Doc.9640-AN/940, and on the need to fulfill the requirements of the aeronautical authorities of the Russian Federation:
- Letter of instruction of Rosaviation dated 05.02.2013g № 03.10-7 (Recommendations for the protection of aircraft from ground icing, section 3.4) "If there are snow and ice deposits on the aircraft critical surfaces, and the crew abandons de-icing procedure, the responsible person for the aircraft departure must immediately inform the safety inspection.
The PIC should not make a decision on the aircraft departure without anti-icing procedure in case there is a report from the responsible person, that there are snow and ice deposits on the aircraft critical surfaces, except when it is allowed according to the aircraft manual.
-The Guideline of Rosaviation from 31.05.2013g. № 03.9-26, p.3.7.5 "To exclude the practice of aircraft de-icing procedure refusals based solely on the decision of the crew not to conduct such a procedure."
The specialists of the Center of Business Aviation Vnukovo-3 Ground service are all certified for the de-icing procedure conduction including decision making for aircraft de-icing procedure in case of non-conformity of the critical surfaces with the clean aircraft concept.
Best Regards,
Natalia Shelegeda
Clients relations manager
"CCAS "RusAero", PJSC
mob.:+ 7 903 523 82 42
tel., fax + 7 495 7555604 (ext.153)