MASTER WNG: GEN
Tech?
Time constraints?
Both the gen and batt bus items are now being powered by the battery.
Aircon is auto-shed
Max 10-15mins.
MASTER WNG: GEN BUS
Tech?
Time constraints?
All items on Gen bus lost, generator is still powering Batt Bus items and charging the Battery.
Nil time constraints
MASTER WNG: BATT BUS
Tech?
Time constraints?
All items on Batt Bus lost,
generator still powering gen bus items & charging the battery.
GEN fail;
Consids once bus tie is opened?
Why do we open it?
Will lose all items on Gen Bus,
The Battery will continue to power the Batt Bus items until it is depleted (will be less than 30mins as it will have been drained whilst powering all Gen & batt bus equipment).
Opened to give us more time (so we don’t have everything fail once the Battery is depleted)
BATT BUS Fail:
Why do we open the bus tie? Consids once it is opened?
To isolate the Gen bus from any battery or batt bus faults.
Once opened, nothing changes, you have already lost the Batt Bus items, however;
Hot Battery bus will still power applicable items for 30mins, after this you will lose these items (main concern = OBOGs/ Pressurization)
What items are powered by the Hot Batt Bus
- Ram air valve (px),
- Clocks,
- ELT,
- Battery,
- OBOGS,
- Emergency flaps,
- FDR maintenance,
- Chip detection
MASTER WNG: GEN BUS & GEN (Once Bus Tie OPEN)
What are the main concerns?
What appch can you fly?
Aircon auto-shed.
- Probes
- Ground NAVAIDs
- LH MFD
- Transponder
- ADC (BFI tracking required)
- ABS
- NWS
Visual appch OR RNP only
MASTER WNG: BATT BUS
What are the main concerns?
What appch can you fly?
- UFCP
- Centre and RH MFDs
- HYDs
- Emerg Flaps
- Trim
- Landing gear indications
- FMS?
Once Hot Batt bus depleted: OBOGs & will depress.
VOR or Visual appch only
RAT-ANCA process? (R)
R: recognise & stablise
- VERBALISE “e.g. master WNG, GEN” confirm secondaries.
- A/N: known powers & atts, within asx, above MSA. (comms if required to achieve this!)
RAT-ANCA process? (A)
A: analysis
- Tech (what?): what have I lost, what do I still have?
- Environment (so what?): weather, where am I, fuel?
- Time & plan (now what?)
RAT-ANCA process? (T)
Brief your plan, execute the plan - checks and comms as required.
307
wx suitable for vis appch
Master Caution: IRS FAIL
R: “Master caution, IRS Fail” (confirm sec - red Xs through ATT/HDG displays, nil Nav info).
A/N (stabilise): BFI for tracking, set known power & Att (still have EICAS), REMAIN VMC.
C (N): “Pan x3, TEXxx electrical malfunction, request safe vectors for troubleshooting, standby for intentions” (asx/MSA)
A: (talk to duty exec as required)
- Run the checklist; (check CBs, remain S&L, unaccel & monitor alignment, LASAPRAC).
- What do I still have; BFI & EICAS. Nil Nav/ATT/HDG info.
- Location/wx/fuel: M307, do I need to transit through cloud or VMC throughout?, how much fuel & therefore time do I have?
- Plan: intentions for RV anticipating visual appch (ABCs) - chairfly.
307
MASTER WNG “BATT BUS”
VMC on top, suitable for visual appch.
R: “Master Warning” -will have lost Centre & RH MFDs so likely BATT BUS.
A/N (stabilise): PFD for tracking, set known power & Att, REMAIN VMC (look outside!). Clocks away. Check TSD for asx. MSA if IMC?
Confirm secondaries; use BFI & flip to EICAS (BATT BUS, TRIM OFF, OIL PX, HYD FL LO, PMU STATUS, UFCP FAIL).
C (N): turn on & tune up stby VHF. “Pan x3, TEXxx electrical malfunction, request safe vectors for troubleshooting, standby for intentions” (asx/MSA)
A: (talk to duty exec as required)
- Run the checklist; (descent below 10k if visual, otherwise hold off, open bus tie switch regardless, clocks away. 30mins for OBOGs/px on hot batt, (BEERFOCC) also 30mins for aux batt (FRISB)
- What have I lost; FMS, UFCP, 2x screens, hyds, trim, LDG gear indications.
- Still have; BFI & single screen, vectors, VOR .
- Location/wx/fuel: M307, do I need to transit through cloud or VMC throughout?, how much fuel & therefore time do I have? How much time on hot batt?
- Plan: intentions for RV anticipating visual appch (using BFI & EICAS), OR RV for VOR (using PFD & VOR). fly appch clean, into the level cct, run the emerg LDG gear ext cxlist (will need visual inspection. (ABCs) - chairfly. (ANCA)
507,
Call from 14SQN Ops, wx has deteriorated, cloud BKN 1700ft. RTB.
- A/N: 11k feet, tracking back towards OH within 507
- ATIS
- Comms; 2mins heads up, intentions RV for VOR/DME 27 at OH.
- Aids; RRSCBPBT (GET CSE ASAP)
- Brief (LINE)
- Descent checks
- Comms; rqst RVs for VOR/DME 27, QNH, intentions.
UFCP FAIL
- Fly the plane; per RVs (slew HDG bug, alt & speed bugs U/S)
- Comms; change through MFD. (QNH too)
- Admin;
> run the cxlist (check & reset CBs)
> rerun through ABCs (mainly aids - have a think about course bar, if it isn’t up on the inbound, you can slew it - rqst HDG as rqd).
On appch; MFD Fail
R: “MFD Fail” (confirm nil other secondaries & screen only)
A/N (stabilise): continue flying the plane. If visual & at cct height, level, cleanup, power & comms as rqd. If IMC continue appch until visual, then do the above.
C (N): “TEXxx, avionics issue, request cancel IFR, proceed VFR to join the level circuit for troubleshooting”
A/N: Known state (140kts, 30%, in the level cct)
A: (talk to duty exec as required)
- Run the checklist;
- What do I still have; PFD & EICAS/BFI. (Nil NAV screen or FMS)
- Location/wx/fuel: in the cct, visual, sufficient fuel.
- Plan: normal cct to land
M307
“MASTER CAUTION, IAC FAIL”
Wx suitable for visual appch.
Into VMC below cloud, but dual IAC fail
R: “Screen loss” & comes back, “MASTER CAUTION, IAC1 FAIL”
A/N (stabilise): Still have screens, set known power & att, asx & MSA in case of total loss. REMAIN VMC
Confirm secondaries; erratic screens/sync errors.
C (N): Not rqd immediately.
A: (talk to duty exec as required)
run the checklist (reset CBs). (LASAPRAC)
- What have I lost; redundancy only.
- Still have; all screens
- Location/wx/fuel: do I need to transit through cloud - probably want to avoid in case of dual fail.
how much fuel & therefore time do I have?
- Plan: RV for visual or instrument appch. REMAIN VMC if at all possible.
C: call up duty exec once checks complete to advise your plan.
A/T: ABCs/chairfly.
Single IAC fail, Into VMC below cloud, but now dual IAC fail
R: “Total loss of all screens”
Confirm secondaries; nil HUD/UFCP.
A/N (stabilise): use the BFI, confirm known power & att (P+A = T), asx & MSA REMAIN VMC.
C (N): tune comms as rqd through MFD “PANx3 TEXxx electrical failure, request safe vectors for 10mins whilst troubleshooting” (R/B/F)
A: run the checklist
- What have I lost; all screens/UFCP (all nav/Att/EICAS info etc).
- Still have; VHF stby & a/c services.
- Location/wx/fuel: do I need to transit through cloud, what was fuel & FF last time I checked, how long till bingo.
- Plan: SAFE RV for visual appch.
C: call up duty exec once checks complete to advise your plan.
A/T: ABCs/chairfly.
NAVAID fail on appch (RNAV/VOR)
- R; red Xs, nil needle (VOR)/Nil RAIM for RNP (NPA/APPCH/MISS APR)
- A: Fly the plane; level off, power.
- C: “TEXxx VOR failure/unable RNP, request radar vectors 10mins for troubleshooting”
- N: Turn, climb, clean up. Level off
- A/T: ABCs for alternate appch
On the RIMLUT 1T climbing through 7000ft, cloud 3000-9000ft;
MASTER WNG “GEN”
GEN in M307 - difference?
R: “Master Warning GEN”
Secondaries; nil aircon, increased Amperage draw on the batt
A/N (stabilise): Clocks away (10-15mins). Level off (MSA/asx?).
C (N): “PANx3, OH APPCH TEXxx electrical malfunction, request safe vectors and immediate descent, standby for further intentions” (R/B/F)
A: (talk to duty exec as required)
- whilst on RVs & IMC; load shed (anti-coll), begin the checklist (up until bus tie)
- What will I lose when bus tie opened; go through list in GEN INOP; Probes, ground NAVAIDs, LH MFD, tspdr (vectors), ADC (BFI rqd)
- Location/wx/fuel: How long til out of cloud? How much time on batt?
- Plan: get visual on RVs, assess time left on Batt;
> If not much left, rqst the visual appch, complete the checks (open BUS TIE - advise ATC you will lose tspdr, reset timer, vis appch using BFI & EICAS)
> if lots of time left, leave bus tie closed & conduct visual appch. (noting your Batt may fully die…)
T: (ABCs) - chairfly. (ANCA)
M307
- remain within asx (TSD) & VMC.
- Longer to get down
- Otherwise, same process.
M307, above cloud.
MASTER WARNING - GEN BUS
R: “Master Warning GEN”
Secondaries; Probes inop, loss of LH MFD, nil ground NAVAIDs, ABS INOP, NWS etc etc…
A/N (stabilise): set known power & att, asx (flip flop TSD) & MSA REMAIN VMC.
C (N): turn on & tune VHF stby. “PANx3, OH TERM, TEXxx electrical malfunction, troubleshooting this time, standby for further intentions”
A:
- Run the checklist (look at & consider each item you have lost)
- What have I lost; Probes, ground NAVAIDs, LH MFD, tspdr (vectors), ADC (BFI rqd) & rest of list.
- What do I still have; RNP/vis appch.
- Location/wx/fuel: Icing? (probes), How much fuel (time) do I have?
- Plan: talk to duty exec.
> If you have to transit cloud; still have FMS needle. Track to OH/MABEK/ENDIX holds above MSA, descend in hold to get visual, or feet wet or TAAs/25nm safes.
> If VMC & can remain so; track direct ohakea for visual appch
T: (ABCs) - chairfly. (ANC
What do you lose with a UFCP fail
What can you do instead?
FMS EXEC
QNH/comms & navaid tuning/course bar & all bugs.
Declare PAN for system fault (Comms still working)
QNH/navaids/comms tuning - through screens (NAV screen BARO & ALTCNS L/R5)
Course bar - request vectors for 265R, (long final) slew cse bar
