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Forum: Tech Log
7th May 2010, 08:57
Replies: 2
Views: 932

Check your other parameters as well, i.e FF and...

Check your other parameters as well, i.e FF and N2 speed. these are indicative of a problem that manifests with a TGT increase.

Also bare in mind, which engine is at fault, one could be 25 deg...
Forum: Tech Log
22nd Oct 2008, 16:32
Replies: 2
Views: 1,995

B737NG N1 or N2 overspeed

Considering the CFM56-7 is fully FADEC with dual channel EEC control and protection, under what circumstances other than a technical fault could an engine N1 or N2 overspeed.

If on climb out at...
Forum: Tech Log
7th Feb 2008, 22:28
Replies: 12
Views: 8,360

Rb211 Rpm

RB211-535E4 on 757

100% N1 = 4500 LP RPM
100% N2 = 7000 IP RPM
100% N3 = 10611 HP RPM

Thats confirmed then, must have posted at the same time
Forum: Tech Log
1st May 2003, 00:54
Replies: 2
Views: 1,346

I seem to remember that the fire extinguisher and...

I seem to remember that the fire extinguisher and detection systems are connected to the battery bus so require the battery to be turned on. If the batt charger was u/s and batt flat then you would...
Forum: Tech Log
20th Apr 2003, 04:14
Replies: 4
Irs
Views: 950

heard recently thru general discussion, with no...

heard recently thru general discussion, with no proof to back up the answer that the first 3 mins are bite tests then 7 mins to align. Sounded good to me at the time.
Forum: Tech Log
18th Apr 2003, 04:43
Replies: 3
Views: 1,252

As bizzare as it sounds, this statement is in...

As bizzare as it sounds, this statement is in fact true. According to my 757 maintenance training notes.

"The fire bell inhibit logic exists from nose strut extension on take off for 20 secs or...
9th Apr 2003, 21:15
Replies: 5
Views: 1,084

I will go along with goldern rivet except for the...

I will go along with goldern rivet except for the 3rd question as he said. I'd prefer A as Arinc 629 is bi directional dual bus whilst Arinc 429 is uni directional and single bus.
Forum: Tech Log
22nd Mar 2003, 11:40
Replies: 3
Views: 1,192

757 Aircon pack control

A couple of flight deck procedure questions as I'm an oily engineer on a 757 course at mo and hopefully a few answers will help to explain all the different pack control modes.

1. What is the...
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