Hi all. been a while. its been busy busy, with lightnings. The team is back on ZF579 now. todays jobs were to brim the fuel tanks, till she would take no more, which we did, and unpack/prepare no2 engine. we will soon collate all the required ground equiment to fit the engines, then spend 3 months finishing the avionics and outstading rewiring, all is going to plan;).
earlier today: no2 engine, now out of its storage crate, awaits the fork lift for its appointment in the engine prep bay


no2 engine in the prep bay, along with no1 engine.
579 at dusk earlier

the remaining engineering jobs are now tumbling off of the shrinking list, shes nearly there!:)
ummmmm, which one?, I get lots of em..lol
sounds like some is using ancient 56k Dial Up! 😮
Looking at the photographs on the link I see there are a couple of RAF bowsers standing by. Presumably they are there to de-fuel the aircraft, which is bit un-helpful if they want to keep it in running condition.
RAF is run just like an airline these days, generaly the fuel goes back to supplier for reprocessing. No such thing as free fuel any more .
Hi peter, I dont know any, I haven’t seen 724 for a long time now, I have my hands very full with 579 and 422.
blue 2, you have a pm.
agreed, and jb154 makes some good points. Dont get your hopes up on the full report though, as there is very little wreckage left of the key fire zones for examination. if AIB,CAA and lightning expertise is drafted in from the UK, there is a remote chance that the leak, leading to the fire could be traced. Don’t get me wrong I am not putting the SA authorities down in any way, but the in depth specialist expertise on this aircraft is not available or present in SA right now. As for the seat failure there are 2 possibilities, but again we are unlikely to find out. I am ignoring all in the interim report, until a report from AIB has been published.
matt. photo on the right has Jb154 in it. It’s the rectangular box with the 3 plessey plugs on it, the 8 Tbs and the large square relay to the right. This little sucker causes feedback, noise and poor gain from the IC amps, if the relays and contacts are dirty. It’s an absolute ahole to remove, since the aft fixings are only accessible by nanites!!!:mad:
judging by the stains on the bolts above, i wouldn’t mind betting jb154 has had water in it at some point.:(
cheers for the offer matt. we already have the stad manuals and pd pages, but we still cant get the ****** going. we are going to have to make up a rig to measure the fuel pressures etc, we think it probably is the pump, or air pressure issues. by the way, I have some arc52 material coming after christmas for you, its not vixen its Lightning t5, (the vixen diagrams are huge psoters, we just have no way of reproducing the Im afraid. the basic T5 fit is the same. also a picture of the JB154 for you. Spoke to insti man, the JB154 wont cause your lack of 28v to the arc 52 and controler, but will defo cause you problems with the IC system.
Not sure yet m8, we haven’t done any real pd yet. We are assuming the rumble is a knackered limited slip diff in the port half of the box, as we are also getting under pressure on the green Hyd system, but the pump and reservoir are fine. We need to disconect the port drive shaft from the 208, then spin up it up on the air start. If the rumble has gone on wind down, then we know it is definitely the gearbox, at which point then yea, we will need the manual. I”let you know. i will be seeing our avio man today, so i’ll have a chat with him about your radio problem. If you are refurbing the IC system, then Jb154 would need to come out anyway.
to make things even more interesting our STAD won’t accelerate past 10,000 rpm, then steadily decays, until it dies. we have had it in pieces and cant find the problem. we are hopeing it might be a duff fuel pump? hence no air available at present to sort 587 out.:mad:
As soon as he comes back to me, i’ll pm you. no not many updates im afraid. 587 is moth balled for the winter, until we can pull the gearbox. most of the work is engine work indoors, too cr*p outside right now to do much:(
have mailed our avio man, to c if he has any pics. im no expert on th arc52 or ptr175 install, but as far as i know jb154 is the central junction box for the entire IC installation. ill ask same avio man.
so to get it straight. are you getting power to the IC amp? you are not getting any power at all at the control unit loom or the arc52 loom though..right?
matt I believe the arc52 fit and IC amp circuits all go through JB154. Its almost identical fit to the T5 lightning,if the power relays are duff, or JB154 is us/water damaged, I doubt you will get any power to the UHF controller or IC amps. If power is in the top deck, but not in the cockpit that’s could be your culprit.
Unfortunately JB154 is buried on the port cockpit inner skin bulkhead, behind the pilot seat,(aft of the seat bulkhead) below all the canopy mechanism. To get at it you have to remove the arc52, all of the comms kit in the bay immediately port of the observers seat. You have to remove the Obs seat too for best acess. Next you need a small chap to almost climb into the recess left behind:D. You will find JB154 bolted to the inner skin of the port cockpit structure. its a triangular box about 8 inches in lenght witha load of plessey plugs and post office relays all over it.
Ps when you do find a bloke small enough to get in there, send him down to us after will you, cos ours also has a relay stuck, causing loads of feedback on the headsets..:-)
This type of fuse is common to Jag, harrier and Vixen Faw2. If you can give me a section reference, or part number. I can run it through the Nato stock program and give you NSN, part number, sec ref, current manufacturers and current suppliers, with address. Be warned though they will be an arm and a leg, as it will be released stock.
dunno about the pit m8, but the airframe is rough…!