MISSION BRIEF

DUAL HYD G+Y LO PR

HYDRAULICS · CRUISE · LEVEL HARD

SITUATION

Cruise FL350, VIDP–VABB. A turbine blade release has damaged both GREEN and YELLOW hydraulic return lines simultaneously — system pressure on both circuits drops below 1 450 PSI. HYD G+Y SYS LO PR warning fires (Level 3, red, CRC). Both engines and AC buses remain normal — BLUE system continues on its ELEC pump (RAT NOT deployed for pure G+Y loss). F/CTL reverts to ALTERNATE LAW (PROT LOST); STABILIZER, SPOILERS 1/2/4/5, FLAPS, YAW DAMPER, ANTI SKID and NW STEERING all INOP.

YOUR JOB

Fly the aircraft first — alternate law, MANEUVER WITH CARE, MAX 320 KT / M.77. Run the HYD G+Y SYS LO PR ECAM PTU OFF → AFFECTED PUMPS OFF (GREEN ENG 1 + YELLOW ENG 2). PM declares MAYDAY to ATC once aircraft under control. Land FLAP 3 at VREF+25 kt; gravity gear extension AFTER stabilised at VAPP (so trim reference is set before direct law). Divert to nearest suitable airport with adequate runway.

EXPECTED PROCEDURE

64 STEPS · ~12 MIN

1MASTER WARNCANCEL
2FLY THE AIRCRAFTMAINTAIN CONTROL
3NAVIGATEDIVERT / ROUTING
4COMMUNICATEMAYDAY
5MAYDAY ACKOPTIONALREADBACK
6FCU — SELECT FL200FL200 · 2 NM R OFFSET
7DESCENT 10 000 REQUESTEDOPTIONALCONFIRM
8DESCENT 10 000 CLEAREDOPTIONALCONFIRM
9FCU — SELECT 10 000
10HYD G+Y SYS LO PRANALYSE
11ECAM ACTIONSCOMMAND
12PTUOFF
13ENG 1 PUMPOFF
14ENG 2 PUMPOFF
15MANEUVER WITH CAREMAX 320/0.77
16AUTO FLT AP OFFCONFIRM
17HYD G+Y SYS LO PRCONFIRM
18HYD PTU FAULTCONFIRM
19F/CTL ALTN LAWCONFIRM
20LAND ASAPACKNOWLEDGE
21WHEEL PAGECONFIRM
22FLIGHT CONTROL PAGECONFIRM
23MASTER CAUTCANCEL
24ECAM — STATUSANNOUNCE
25STOP ECAMCALL
26OEB / COMPUTER RESETSCHECK
27READ STATUSCALL
28STATUS — PM READSREVIEW
29STATUS — INOP SYSREVIEW
30STATUS — REMAINING INOP SYSREVIEW
31ECAM ACTIONS COMPLETEDANNOUNCE
32QRH SUMMARY — CRUISEREAD
33WEATHER OBTAINEDOPTIONALCONFIRM
34APPROACH FREQOPTIONALCONFIRM
35LANDING PERFORMANCECOMPUTE
36FORDECCOMPLETE
37INFORM ATC — INTENTIONS + BRIEFINGCALL
38ROUTING RECEIVEDOPTIONALCONFIRM
39DIR TO OLGUSEXECUTE
40FMGC PREPCOMPLETE
41QRH REVIEW — APPR / LDG / GO-AROUNDREVIEW
42NITS BRIEF (SCCM)CONFIRM
43PASSENGER PAANNOUNCE
44INFORM COMPANYCALL
45ATC — EMERGENCY SERVICESADVISE
46EMERGENCY SERVICES REQUESTEDOPTIONALCONFIRM
47APPROACH PREPARATION 1/2 · FMCCOMPLETE
48GPWS LDG FLAP 3ON
49GPWS FLAP MODEOFF
50APPROACH PREPARATION 2/2 · CONFIGCOMPLETE
51APPROACH BRIEFING · NORMAL ILS RWY 27 (1/4)COMPLETE
52APPROACH BRIEFING · THE APPROACH (2/4)COMPLETE
53APPROACH BRIEFING · THE LANDING (3/4)COMPLETE
54APPROACH BRIEFING · THE GO-AROUND (4/4)CONFIRM
55PREP READY @10.5OPTIONALCONFIRM
56PREP LATE @10.5OPTIONALCONFIRM
57DESCENT REQUESTEDOPTIONALCONFIRM
58HOLD REQUESTEDOPTIONALCONFIRM
59DESCENT 8 000 CLEAREDOPTIONALCONFIRM
60FCU — SELECT 8 000 · SPD 230
61LEVEL 8 000OPTIONALCONFIRM
62CONT DESCENT ACKEDOPTIONALCONFIRM
63AT 13 000OPTIONALCONFIRM
64APPROACH CLCOMPLETE
65HOLD — LATE OUTBOUNDOPTIONALCONFIRM
66READY FOR APPROACHOPTIONALCONFIRM
67CLEARED APPROACHOPTIONALCONFIRM
68LEAVE OLGUS · HEADING 240, DESCEND 5 000CONFIRM
69WITHIN 60° OF THE LOC COURSEOPTIONALCONFIRM
704 NM TO OLGUS — SET ALT 5 000 · SET HDG 240OPTIONALCONFIRM
71FCU — SET ALT 5 000
72FCU — SET HDG 240
73AT OLGUS — PULL HDG 240 · PULL V/S −1500
74FCU — PULL HDG 240
75FCU — V/S −1500 · SPD 225
76APPR — VERIFY SENSING + IDENT · ARM
77LEVEL 5 000OPTIONALCONFIRM
78AT THE ARM POINTOPTIONALCONFIRM
79LOC* — CAPTURE, 25 DMEOPTIONALCONFIRM
80LOC — ESTABLISHEDOPTIONALCONFIRM
81FLAP 1VFE-NEXT−5 · FLAP 1
82FLAP 2VFE-NEXT−5 · FLAP 2
83FLAP 3VFE-NEXT−5 · FLAP 3
84CONFIGURE FOR APPROACHFLAP 3 · VAPP
85GEAR — GRAVITY EXTNDEPLOY AT 5000
86G/S ALIVE — 15 DMEOPTIONALCONFIRM
87GS / LOC INTERCEPTESTABLISHED
88LANDING CLCOMPLETE
89LANDING CLEARANCEOPTIONALCONFIRM
90TOUCHDOWNOPTIONALCONFIRM
91FULL STOPOPTIONALCONFIRM
92REQUEST TAXI TO STANDCALL

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