Hi.:)
If your plane is certified to fly in RNP-10 (very popular in Boeing), in my modest oppinion you donīt need to say anything at all. You will have to take into acount the abnormal procedures as you have read above from the rest of Ppruners. You are not in a situation of May day, Pan etc etc etc. Keep calm and take it easy. Regards. |
So - it was a 777? Wat about an ATR? An Embraer? A TU. Lets take a 737 Classic - 2xFMC fail - out with the paper stuff. No waypoints, no present position, no 'navigation', no perfomance data. You will have a lat and long position on the INS panel so you'll know where you've been. .All maneagble, however, of course. 777 a bit smarter.
may have confused FMS with CDU |
The nice TRE a few weeks ago failed both FMGCs on an A320. Then our slats jammed during the procedural approach ILS into Malpensa. The extra fun bit? The loss of both FMGCs mean you don't get VFEnext displayed, so you better start writing down VFEnext-5 for all your flap stages. While trying to remember how you manually tune the radios :ok: Of course no A/P A/T.
Oh, and procedural ILS was due to the radar having been knocked out by the storm over the airport (and all the alternates). Needless to say, a missed approach would have been interesting (for those of you who know MXP...). Skipper and I fell asleep about 5 minutes after getting into the taxi from the sim building :) I know thread drift, but worth sharing a beautiful sim moment. P |
Funnily enough, I had a dual FMC failure at about 30W. returning to the UK yesterday morning. A few alerts, a/p, a/t drop out and a few odd FMA annunciations, put newspaper down, engage hdg sel, alt hold, carry on. FMC's elected to rejoin the flight twenty min later.(747 a/c).
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Thanks all for your inputs.
I do agree there is no need for a may day call, and your rvsm should not be affected depending on the type of aircraft. Some aircrafts do allow you to reengage the autopilot. |
And if ever you're mid Pacific and lose all your FMC(S) and all nav capability, you could (B747) still select A/P, ALT-hold, select HDG bug and steer magnetic course according to your computer flight plan way points data. Imagine! :ooh:
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Once we lose....
Once we lose F/D, A/THR and A/P, we're all dead!!!!
(Simple fact!) Fly safe, PantLoad |
PantLoad . . .
Once we lose F/D, A/THR and A/P, we're all dead!!!! (Simple fact!) |
Today 03:57 PantLoad Once we lose.... Once we lose F/D, A/THR and A/P, we're all dead!!!! (Simple fact!) Fly safe, PantLoad |
Manual Reversion
Funnily enough, I had a dual FMC failure at about 30W. returning to the UK yesterday morning. A few alerts, a/p, a/t drop out and a few odd FMA annunciations, put newspaper down, engage hdg sel, alt hold, carry on. FMC's elected to rejoin the flight twenty min later.(747 a/c). Dude :O |
B777 - I think Pants was being humerous.
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B777 - I think Pants was being humerous. |
737NG - Dual FMC failure, no longer PRNAV/BRNAV. RVSM Maintained. A/P will not disengage, however LNAV and VNAV cease to function obviously. ALT HOLD Maintains altitude, HDG SEL for radar vectors and VOR/LOC for pretty much everything else. Set up ref and N1 limit manually with the selectors situated above the upper DU and refer to the QRH PI for the figures. Had it in the sim 8 months ago. :ok:
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Before FMS was first introduced into TriStar operations - we were very happy with Radio Nav (VOR etc) around Europe, INS display for Long Haul Ops, (Cross Track Error & Desired Track) & Manual Thrust in the cruise everywhere. After the intoduction of FMS, some wondered how we had coped before hand.
Only Airbus could design an aircraft which fails the autopilots when the FMGCs fail though. |
In addition to my last thread:
Dual Fmc fail over Pacific....no issues again. Last route is already in the box. Use Alt hold on AP,then Track sel to fly the magenta(which should already be displayed on your ND due no erasure of waypoints not passed already). If you are on the magenta,use Lnav. Vnav will not be available. Only problem arises if you wish to divert to an airfield which would be beyond Vhf coverage of your Vor's(typically on trans pacific routes!).In which case you've got to punch in the coordinates of the airfield in Lat/Long mode and you will get the magenta to fly you direct to the airfield in question.After that its simply a matter of engaging Lnav. Like someone said earlier,no Vspeeds or maneuvering speeds.Therefore the handy dandy... Off to mah beer now...:cool: |
Joking, of course....
Yes, joking, of course....
Fly safe, PantLoad |
Naughty boy, PL!
"Looks like we had a single SOH failure there, Skip" |
If your plane is certified to fly in RNP-10 (very popular in Boeing), in my modest oppinion you donīt need to say anything at all. |
we were very happy with Radio Nav
.. and, if all else fails (as it often used to do on the Electra from Oz to UnZud) the radar works real fine to find the coastline. If that failed the cloud gave the place away anyway. |
From some notes I wrote up a while ago for 737:
Failure on the ground or for a return to base:
Experience shows that most FMC failures are of short duration, so it's worth checking it periodically by selecting INIT/REF or similar to confirm its status. |
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