Update of the M-2000C Manual - Page 31 - ED Forums
 


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Old 05-28-2018, 08:34 PM   #301
jaguara5
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Does anybody know when the AP and PPA test buttons are used ?
Are they part of the pre start procedure and performed during the light test (step 12 Alarm panel and fire warning lights?) or are they used only in emergencies?
Also, can someone explain how exactly step 13 of the post engine start checklist (SEC CALF and SEC CARB emergency mode test) is performed? (by flipping the respective switches / CARB lever one at a time and watching if the CALC light on the alarm panel goes on and off when theyswitched back?).
Finally, shouldn't a brake test step be included in the taxing checklist?
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Old 05-31-2018, 12:24 AM   #302
Frederf
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PPA test tests the PPA lighting to check for bad bulbs.

The FBW test is required for a cleared DECOL warning light. Assume that AP test is done immediately after without the DECOL association.

Secours Calc. and Carb. are probably done individually by forcing the secondary mode, noting the lights and possibly engine behavior (temperature, RPM, etc.) either at idle or when worked through the dry thrust range. The ground crew would probably note that the nozzle didn't react as it would in normal mode at various engine settings to confirm positive changeover.

Yeah, brake test on initial movement applies to every airplane I've ever encountered. Probably should be in the procedure text too.
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Old 05-31-2018, 08:56 AM   #303
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Quote:
Originally Posted by Frederf View Post
PPA test tests the PPA lighting to check for bad bulbs.

The FBW test is required for a cleared DECOL warning light. Assume that AP test is done immediately after without the DECOL association.

Secours Calc. and Carb. are probably done individually by forcing the secondary mode, noting the lights and possibly engine behavior (temperature, RPM, etc.) either at idle or when worked through the dry thrust range. The ground crew would probably note that the nozzle didn't react as it would in normal mode at various engine settings to confirm positive changeover.

Yeah, brake test on initial movement applies to every airplane I've ever encountered. Probably should be in the procedure text too.
Wasn't asking about the AP button next to the FBW test switch , but the one next to the AP selection modes on the upper left side of the central console
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Old 06-01-2018, 07:33 AM   #304
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Oh, tests the lights just like the PCA/PCA-aux one.

Example behavior:
NORM
N 49-100% (idle-max dry)
Tt7 460-850 (idle-max dry)
Nozzle motion

SEC. CALC.
N 57-102% (idle-max dry)
Tt7 500-960C (idle-max dry)
No Tt7 overtemp protection (78% = 900C)
No nozzle motion

SEC. CARB.
N 61-100+-2% (idle-max dry)
Tt7 420-850C (idle-max dry)
No nozzle motion
No response primary thrust handle

SEC. CALC and SEC. CARB.
N 61-100+-2% (idle-max dry)
Tt7 460-960C (idle-max dry)
No Tt7 overtemp protection (83% = 900C)
No nozzle motion
No response primary thrust handle
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