Temps Froids Flashcards
RCC dans quel ordre sont ils donnés ?
RCC dans quel ordre sont ils donnés ?
Rcc: dans l’ordre par tiers de piste, du QFU le plus faible
Flex et contamination:
Flex et contamination:
FULL is mantdatory
more than (1/2in)13mm slush, water or wet snow. or more than 102mm dry snow
more than (1/2in)13mm slush, water or wet snow. or more than 102mm dry snow T/O not recommanded
inflight: extended operations or holing in moderate to severe icing condition
inflight: extended operations or holing in moderate to severe icing condition
use WAI as anti-icer.
Engine Vibrations in Icing conditions
Engine Vibrations in Icing conditions
SP16 CW FAN ICE REMOVAL or (Better) Engine High Vibration NNC
SP16 IGN: FLT - AT off - 80% 1sec one by one - wait 15 sec.
VIB<4 -> repeat every 15 min or sooner
VIB>4 -> Engine Vibration Non Normal C/L
Sp16: comment la traiter
Sp16: comment la traiter Relire en avance, et faire de tête, trop longue pour de la do-list. de mémoire, sauf opérations de dégivrage et normalisation. Apu bleed off et pack off, remettre les packs seulement après mise en route. Structure à briefer: Prône heat on Calcul hot Dégivrage en do-list Flaps travel Au point d’arrêt flaps X, fctl Check, before taxy C/l Besoin de dégivrer a Orly Demander au coordo.
Temp de protection dépassé et plus de conditions givrantes:
Temp de protection dépassé et plus de conditions givrantes:
Demander dégivrage.
WAI au T/O
WAI au T/O
prendre en compte ds OPT si besoin entre sol et 1500ft
Qui a la main sur le mélange du liquide de dégivrage
Qui a la main sur le mélange du liquide de dégivrage
CDB on demande ce qu’on veut
Icing conditions defintion:
(OAT or TAT<10°C) and Visible moisture or <1600m visi, or contaminant/water is present. (sp16)
CW Contamination admissible avion: frost on lower wing due
CW Contamination admissible avion: frost on lower wing due
< 3mm is allowable cold fuel
CW Contamination: controls or leading edge contaminated
CW Contamination: controls or leading edge contaminated
unnacceptatble (SP16)
Upper fuselage surface: Thin hoarfrost distinguishable markings: acceptability
Upper fuselage surface: Thin hoarfrost distinguishable markings: acceptability
Acceptable (SP16)
CW, Cavité des contrôle surfaces
CW, Cavité des contrôle surfaces
must be clear of ice/snow
Snow or ice on the fan ?
Snow or ice on the fan ?
snow or ice due ops in icing is allowed if the fan is free to rotate and ice shedding procedure is applied.
Que veut CSFF
Que veut CSFF
cold soaked fuel frost (SP3)
CSFF lower surface allowable if
CSFF lower surface allowable if
SP3 ALL LE, FCTL, tabs, winglets, balance paned cavities free from contaminants, then:
less than 3mm, or
T>+4, no visible moisture (1600m) & Fuel temps >-16
CSFF higher surface allowable if
CSFF higher surface allowable if
SP3 CSFF lines are present & nothing out of the lines.
ALL LE, FCTL, tabs, winglets, balance paned cavities free from contaminants, then:
less than 3mm, or
T>+4, no visible moisture (1600m) & Fuel temps >-16
Cold soaked fuel frost on upper wing of an aircraft with no lines:
Cold soaked fuel frost on upper wing of an aircraft with no lines: not allowed (sp3)
CW: Contamination: Eau gelée devant les ports statiques. acceptabilité:
CW: Contamination: Eau gelée devant les ports statiques. acceptabilité:
unacceptable (sp16)
APU inlet / outflow valv contamination acceptabilité:
APU inlet / outflow valv contamination acceptabilité:
unacceptable (sp16)
CW: engine/fan snow accumulation during extended shutdown acceptabilité:
CW: engine/fan snow accumulation during extended shutdown acceptabilité:
unacceptable (sp16)
CW: Contamination: fuel vents acceptabilité:
CW: Contamination: fuel vents acceptabilité:
unacceptable (sp16)
CW: Contamination: ldg doors acceptabilité:
CW: Contamination: ldg doors acceptabilité:
unacceptable (sp16)
CW - what is modified in preflight beyond exterior inspection:
CW - what is modified in preflight beyond exterior inspection:
Probe heat - on (sp16)
CW température below which things start to be complex:
CW température below which things start to be complex:
-35°C
CW Engine start
CW Engine start
adverse weather heating of HMU by maintenance
adverse weather starter servicing by maintenance
Oil pressure > normal, and oil filterbypass msg, ok for several minutes, Idle until normal. if oil press > normal after engine oil stabilised: shut down engine.
display units may be brighter than normal…warm- up.
(OAT or TAT<10°C) and Visible moisture or <1600m visi, or contaminant/water is present.
(OAT or TAT<10°C) and Visible moisture or <1600m visi, or contaminant/water is present.
Engine AI on the GROUND
IGN:CONT - AI - AIoff -IGN:OFF (sauf au sol, si on les enlève, laisser IGN-cont)
off when SATprog2
! After setting Engine AI on, if cowl A/A stays bright with engine Idle
! After setting Engine AI on, if cowl A/A stays bright with engine Idle SP16 Check APU BLEED IS OFF check ISOL VALVE IS AUTO check acft clear and increase N1-> 30%
Icing conditions on the ground
Icing conditions on the ground
use WAI between start and T/O unless protected by Fluid Type II or IV
WAI-on (may cycle on-off due loic)
WAI automatic off when T/O thrust is set.
preliminary use is de-ice
CW: after start, the flaps stop to a different position than flaps lever
CW: after start, the flaps stop to a different position than flaps lever
immediately set the set the flap lever in the same position.
CW Before Taxi
CW Before Taxi
GEN switches on: wait until stabilized (up to 5 minutes needed)
Flight control check after de-icing.
Flaps Test: check full down and back before setting T/O Flaps
SHOULD THE FLAP STOP: position the flap lever immediately in the same position
CW TAXI
CW TAXI
minimum thrust above standing deicing fluid
Ice Shedding: T<3°,
Check area behind the airplane
70% N1 for 30 sec Every 30 min, (including taxi in)
heavy conditions: 70% for 1 sec every 10 minutes.
after taxi in contamination: do not retract flaps more than to 15°
Ice Shedding, résumé des procédures
Ice Shedding, résumé des procédures
le fan peut être normalement givré lors de la PPV, si on ice-shed au sol
T<3°, check behind airplane, 70%N1/30sec, 30min.
T<3°, heavy cond: check behind airplane, 70%N1/1sec, 10min.
inflight: Fan Ice Removal SP16IGN: FLT - AT off - 80% 1sec one by one - wait 15 sec. (VIB<4 -> repeat every 15 min or sooner) (VIB>4 -> Engine Vibration Non Normal C/L)
High Engine Vibration NNC
Engine run up, CW: recommendations ?
Engine run up, CW: recommendations ?
éviter les 70% de N1 1 sec toutes les 10 minutes. difficile sur TW
Enchaîner runup et T/O
CW DE-ICING
CW DE-ICING
APU (shut down unless necessary due fumes)
Flaps up
Idle - Trim set - Eng Bleed off - APU bleed off
Holdover time: beginning of anti-icing proc
CW AFTER DE-ICING
CW AFTER DE-ICING APU as necessary (éviter si possible) 1 minute wait -> eng bleed ON Flaps - T/O Flight control Check
! Wing has been de-iced, do we use WAI for Take off ?
! Wing has been de-iced, do we use WAI for Take off ?
not if Type II or IV has been applied and is protecting the acft
! T/O, icing conditions, T<3°C
! T/O, icing conditions, T<3°C
30 sec 70% N1
If flight in moderate to sever icing condition cannot be avoided, do:
If flight in moderate to sever icing condition cannot be avoided, do:
SP16: CW FAN ICE REMOVAL
IGN: FLT - AT off - 80% 1sec one by one - wait 15 sec.
VIB<4 -> repeat every 15 min or sooner
VIB>4 -> Engine Vibration Non Normal C/L
Use WAI
Use of WAI above FL350 may lead to bleed trip off and loss of cabin pressure
CW Altitude temp corrections
CW Altitude temp corrections
Correct all minimum altitude inc FAF, app, AD, G/A
except,
between (FAF and MDA) for minimas VNAV (mais respecter tempé mini)
radar vectors or ATC level
T>0
CW Shutdown procedure after Lansing in icibg condition:
CW Shutdown procedure after Lansing in icibg condition:
stabiliser trim 5 units (avoid water freezing and locking controls)
After landing, if contamination or slush, flaps.
After landing, if contamination or slush, flaps.
retract flaps to 15 (sp16)
CW Secure procedure:
CW Secure procedure:
if warm air circulation in the E/E compartiment is required: APU start - gen on - packs auto - isol valve open -press man - outflow open.
Moderate to heavy Rain, Hail or SLeet (neige fondue)
Moderate to heavy Rain, Hail or SLeet (neige fondue)
Ref SP16
IGN CONT
A/T OFF , adjust thrust manually, slower than AT, do not change direction until stabilisation. maintain minimum thrust setting
Reduce speed
consider Start APU (why ?)
