ETOPS Flashcards
ETOPS serious technical failure?
continue
re-route (remain within rule distance)
divert
ETOPS failure consideration?
ETOPS is a dispatch consideration
an inflight loss of an item that degrades aircraft status below that required of ETOPS dispatch does NOT mandate a decision to divert
Why do you perform a contingency maneuver?
aircraft is unable to maintain assigned FL due to weather, performance problems or pressurization or medical problem diversion
Contingency maneuver?
turn L or R minimum 45° (recommended 90°)
off track 15Nm
climb or descent after initial trun 500ft
if diversion required to cross further track descend below FL285
use 500ft ≠ FL
use lights, TCAS look down, 121.5, 123.45
obtain a clearance when time permit
Why do we perform an ETOPS verification flight?
to confirm the continued suitability of the aircraft to operate ETOPS rules
define 60/60 rules?
aircraft TO and remains 60mins from a suitable airport. after 60mins, CA assess whether the aircraft is suitable for ETOPS.
if aircraft is NOT suitable: must re-route to stay within 60mins of suitable airport or divert
What is the ACARS adress for 60/60?
LHRKEBA
ERA weather deterioration, once the aircraft has dispatch, outside rule distance and within rule distance?
aircraft dispatch: normal minima apply
outside rule distance: CA after carefull assessment of the likely risk, consider re-routing, turning back or diverting
within rule distance: should proceed so as to come within the rule distance of another suitable airfield as soon as practical
defines rule distance?
rule distance is distance flown in still air in the rule time at 1 eng inop cruise speed (856Nm)
defines rule time?
rule time is maximum diversion time from a suitable aerodrome (120mins)
defines threshold distance?
max allowable distance from adequate airport 60mins at 1 eng inop cruise speed. 435Nm
determine starting 1 hour after departure at max TO weight
What is the 1 eng inop cruise speed? def?
428Kts TAS
determine starting 2 hours after departure at max TO weight
lower speed because stay longer at 100000ft where TAS is lower than at hight level
ETOPS ERA RFF minimum?
4
FAA is A
Defines ERA?
Adequate ETOPS En Route Alternate
- applicable performance and RWY caracteristics
- at ETA, ATS, lightings, coms, weather reporting, navaids and emergency services
- at ETA: has an ATC facility and at least 1 instrument approach
planning minima for ERAs?
at ETA +1hour, planning minima are:
precision: +200ft to DH / +800m Vz
NPA : +400ft to higher MDH / +1500m to higher of Vz
Weather deviation, phraseo? how?
pilot request a revised clearance
WEATHER DEVIATION REQUIRED
10Nm: when approaching 10Nm from track, initiate level change of 300ft
when aircraft is within approximately 10Nm of center line: regain assigned FL
defines ETOPS scenarios?
eng inop
eng inop + depressurisation
depressurisation
only the last 2 are taken inot consideration
diversion speed?
Depressurisation: LRC FL100
Eng inop: 340/.80M FL100
What consist of critical fuel? (9)
trip fuel from ETP to ERA at FL100 APU is single eng Ice increments (if icing) use of wing and eng AI (if icing) 15mins hold over ERA at 1500ft make an IFR approach followed by GA make a second approach and land penalty of 5% for wind penalty of 5% for performance
Critical fuel required icing effect calcul?
when icing conditions are forecast, the greater of the 2 fuel quantities has to be added:
LRC: greater of 7% of planned fuel for total forecast time OR 11% of planned fuel for 10% of forecast time
340KTS: 6% of planned fuel for total forecast time OR 17% of planned fuel for 10% of forecast time
