744 Forum

Apron => Hangar 7 => Topic started by: ASCTU744 on Mon, 13 Nov 2023 20:49

Title: FIRE MN DK AFT in combi
Post by: ASCTU744 on Mon, 13 Nov 2023 20:49
I'm getting a FIRE MN DK AFT in the combi, according to my sources the combi only has FIRE MN DECK.

(https://www.hoppie.nl/forum/var/2023-11-13_20.48.26_Schermopname_(13).png)

This was during the volcanic ash reproduction
Title: Re: FIRE MN DK AFT in combi
Post by: John H Watson on Tue, 14 Nov 2023 03:47
Airline option?

The Boeing FIM (Fault Isolation Manual) includes these Warning messages for the Combi, including:

FIRE MAIN DECK
FIRE MN DK MID
FIRE MN DK AFT

I don't know if it is related, but the combi was designed to be reconfigurable. Usually, the combi cargo area includes the aft area of Zone D and all of Zone E. I don't think the "all of Zone D" configuration was ever approved. Considering how small Zone D usually is, I don't think they would have created a FIRE MN DK FWD message simply for the front half of D zone. The front half of Zone D is main deck (fire) "Zones 1 & 2". The aft half of Zone D and all of E Zone includes main deck "Zones 3 ~ 6"

The FIM also mentions FIRE MN DK FWD, FIRE MAIN DECK 1 and FIRE MAIN DECK 2 warnings, but I don't know what aircraft this applies to. Freighter?
Title: Re: FIRE MN DK AFT in combi
Post by: ASCTU744 on Tue, 14 Nov 2023 11:35
It's weird, because FIM's tell me the same as your sources. But the FCOM's tell me the combi only has FIRE MAIN DECK.....

Both the FIM and FCOM are from KLM
Title: Re: FIRE MN DK AFT in combi
Post by: John H Watson on Wed, 15 Nov 2023 07:48
I have some KLM engineer training notes which have this weird statement:

[The smoke detectors relay a signal to the flight deck] "This signal illuminates a light on the P5 pilot's overhead panel... [and] creates an EICAS messages, and activates MAWEA" 

The manual seems confused about whether the message/s are plural or singular. The message/s are not listed.
Title: Re: FIRE MN DK AFT in combi
Post by: John H Watson on Wed, 15 Nov 2023 08:07
(https://www.hoppie.nl/forum/var/2023-11-15_08.07.14_FIRE_MAIN_DECK_FIM.GIF)

All rather confusing.