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Search: Posts Made By: twinbird
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Forum: Freight Dogs
25th Aug 2023, 02:19
Replies: 2
Views: 759
Posted By twinbird

Procedure to ensure the accuracy of navigation data

Operators and pilots should establish the procedure if the AIRAC cycle will change during the flight.

I would like to know how the airline establishes the procedure in AOM, which database should I...
Forum: Tech Log
11th Mar 2023, 01:09
Replies: 2
Views: 1,040
Posted By twinbird

I really appreciate the info Flying Wild. I...

I really appreciate the info Flying Wild.
I looked at ENR 3 ATS ROUTES ENR 3.1 CONVENTIONAL NAVIGATION ROUTES and couldn't find any information on the page.
The info MEA, distance, MAG course and...
Forum: Tech Log
9th Mar 2023, 08:44
Replies: 2
Views: 1,040
Posted By twinbird

Question No conventional airways in UK?

I just looked into the UK AIP and couldn't find any conventional airways.
All conventional airways have already replaced by RNAV 5 in UK?
Forum: Rotorheads
12th Jan 2023, 12:13
Replies: 5
Views: 1,620
Posted By twinbird

Question Any instance of abnormal ITT increase after normal engines shutdown?

If anybody know the instance of abnormal ITT rising after engine shutdown, please let me know the link of the relevant report.

Or anybody know how engine parameters behave in case of abnormal ITT...
Forum: Rotorheads
16th May 2022, 13:16
Replies: 3
Views: 1,425
Posted By twinbird

Question Cat A Offshore Helideck procedure of AW139

I wonder if we are able to do Part E and I, Offshore Helideck procedure at the elevated Helideck on the land.
The name of the procedure is Offshore Helideck but Maximum Altitude for Offshore...
Forum: Rotorheads
13th Jun 2021, 00:47
Replies: 22
Views: 3,764
Posted By twinbird

Question Alternate static source

I'm new to Sikorsky S-76D and wondering why alternate air source is not equipped with S76D?
As far as I know the regulations in FAA is as below

AC 29 APPENDIX B. AIRWORTHINESS GUIDANCE FOR...
Forum: Rotorheads
12th Oct 2020, 04:00
Replies: 19
Views: 3,513
Posted By twinbird

The type is Leonardo AW139, minimum cautionary of...

The type is Leonardo AW139, minimum cautionary of NR is 90% in OEI and 102% without any droop.
There is no specific NR described in RFM to get the maximum lift to drag ratio at certain speed.

I...
Forum: Rotorheads
10th Oct 2020, 06:04
Replies: 19
Views: 3,513
Posted By twinbird

Question NR droop or not in OEI CTO

Does anybody know which way has more lift in OEI CTO of FADEC (EEC) helicopter to droop NR at some extent or no droop at all?

The instructor I met in the past said to me that to droop NR to the...
Forum: Rotorheads
23rd Apr 2019, 06:16
Replies: 12
Views: 4,881
Posted By twinbird

Leonardo Ontano, The indication of AW139 is...

Leonardo Ontano,

The indication of AW139 is different from B412, as there is no mast TQ indication in AW139.
As for B412 100% is the max TQ and this is mast TQ and each engine produce 50% TQ....
Forum: Rotorheads
6th Apr 2019, 04:08
Replies: 12
Views: 4,881
Posted By twinbird

Could be, thanks!

Could be, thanks!
Forum: Rotorheads
5th Apr 2019, 22:16
Replies: 12
Views: 4,881
Posted By twinbird

Mechanics say EEC seems to be OK as when depart...

Mechanics say EEC seems to be OK as when depart by CAT A Part A, it needs HOV PI +23% in 2 sec, there is no problem to maintain NR at around 102%.
And if there is a problem with EEC, EEC DATA or EEC...
Forum: Rotorheads
5th Apr 2019, 22:11
Replies: 12
Views: 4,881
Posted By twinbird

Thanks for you reply, jeepys. I've...

Thanks for you reply, jeepys.

I've experienced 6 AW139 regularly for the past 6 yrs and this bird is the only one.
I don't care high side of NR very much unless trainees use CLTV at a normal...
Forum: Rotorheads
5th Apr 2019, 21:52
Replies: 12
Views: 4,881
Posted By twinbird

Thanks for the reply, the coyote. If there...

Thanks for the reply, the coyote.

If there is no maintenance action it's OK if NR goes up into Transient limit, but we need maintenance actions.
Need a visual inspection at or above Nf 104% and...
Forum: Rotorheads
5th Apr 2019, 12:12
Replies: 12
Views: 4,881
Posted By twinbird

AW139 Nf (NR) control issue

We operate two AW139 and I think one of them has a Nf (NR) control issue.
When it was picked to hover by a trainee with NR set to 102%, ROTOR HIGH came out and NR indication showed 104%.
I didn't...
Forum: Rotorheads
20th Oct 2018, 13:10
Replies: 12
Views: 12,684
Posted By twinbird

Question Fuel tanks installation of AW139

Does anybody know the reason why fuel tanks of AW139 are located not under the cabin floor like other helicopters?
I found a regulation in Easy Access Rules for Large Rotorcraft (CS-29) (Amendment...
Forum: Rotorheads
1st Dec 2017, 12:16
Replies: 40
Views: 16,322
Posted By twinbird

I had a few times to start engine with less than...

I had a few times to start engine with less than 23V battery. I was lucky that I only had several unfamiliar CAS messages, but didn't have DUs black out. I heard DUs black out happened in the...
Forum: Rotorheads
1st Dec 2017, 12:07
Replies: 40
Views: 16,322
Posted By twinbird

Thank you very much Non-PC Plod! I look forward...

Thank you very much Non-PC Plod!
I look forward to the answer.
Forum: Rotorheads
30th Nov 2017, 03:17
Replies: 40
Views: 16,322
Posted By twinbird

Thank you very much for all the replies. I...

Thank you very much for all the replies. I understand the system overview,


but how should I get the fact that ENG 2 IGNITER & START is powered by DC ESS BUS 2.


I'm confused...
Forum: Rotorheads
29th Nov 2017, 04:56
Replies: 40
Views: 16,322
Posted By twinbird

AW139 Battery start procedure

:confused:For battery start procedure, there is a NOTE as follows;


If engine N°2 is to be started first, set BUS TIE switch to ON and confirm MAIN BUS 2 voltage is not below 23V.


I thought...
Forum: Rotorheads
20th Mar 2017, 21:05
Replies: 5
Views: 2,302
Posted By twinbird

DB, this is the thing when we approach to non...

DB, this is the thing when we approach to non radar airport and fly procedurally. It's easy for pressurized aircraft to descent deeply with big rate of descent but I'm on non-pressurized A/C and...
Forum: Rotorheads
20th Mar 2017, 02:58
Replies: 5
Views: 2,302
Posted By twinbird

For low altitude to commence approach in IFR

In IFR flight, upon reaching IAF with preceding trfc exsisting and can't get a descend clearance by IAF. In this case we need to hold over IAF to descend to the ALT wchich we can commence safe (not...
Forum: Rotorheads
15th Mar 2017, 21:12
Replies: 23
Views: 9,641
Posted By twinbird

I thought above 114% of TQ never happened with TQ...

I thought above 114% of TQ never happened with TQ Limiter ON, but momentaly overshoot might be happened as described by HLCPTR. I'll ask mechanic to download the data and try to get FCOM from...
Forum: Rotorheads
14th Mar 2017, 02:02
Replies: 23
Views: 9,641
Posted By twinbird

I saw both engines PI was going up to the red...

I saw both engines PI was going up to the red band and TRNG Mode was automatically deactivated as Nr fell down beloe 87%.


TRNG Mode was off but TQ Limiter was still on. So PI must be limited up...
Forum: Rotorheads
14th Mar 2017, 01:53
Replies: 23
Views: 9,641
Posted By twinbird

With respect to HLCPTR's question Was the PI...

With respect to HLCPTR's question

Was the PI spike on both engines or just one side?
I saw both engines PI going up to red band.

Was OEI TRNG manually deselected or did it do it on its own?...
Forum: Rotorheads
8th Mar 2017, 06:51
Replies: 23
Views: 9,641
Posted By twinbird

AW139 Training mode

When training mode was deactivated with AW139 I saw the PI goes into red band and digital number of PI shows 121%.


When using training mode TQ Limiter mast be used and it limits PI up to 114%....
Showing results 1 to 25 of 25


 
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