Apu auto shutdown это что
320 Resets
- No Start «Auto Shutdown» Message:
(No Acceleration) Reason-Apu Speed On Speed «Auto Shutdown» Message:
- Action #1 = Inspect 108VU panel for water ingestion and contamination of «APU EMERGENCY SHUT DOWN» button (1KL). R/R 108VU panel per AIRBUS SB A320-92-1011.
- Action #1 = Inspect mag plug for metal contamination R/R lube and generator filter elements.
- Action #2 = If auto shut down continues, R/R both differential pressure switches.
- Action #3 = If metal contanimation found on mag plug and auto shut down continues, R/R APU.
- General info = Oil brand changes have been linked to filter clogging auto shutdowns. (no adverse inpact to APU).
- Action #1 = Most Overtemp auto shut downs are due to E/C-(engine cooling) shroud delamination failures.
- Action #2 = If shroud is delamed, replace the shroud.
- Action #3 = If shroud is ok and auto shut downs continue, R/R APU.
- Action #1 = If the fault is in conjunction with an auto shut down(No Flame/No Acceleration/or Underspeed) see ASD T/S recommendations above.
- Action #2 = If the fault continues however the APU still starts, R/R A/C Fuel Pressure Switch(5030QM).
- Action #3 = If the fault continues, check for possible defects with the A/C Fuel Pressure Switch (7QC). APU Fuel Pump, or Air Release Valve.
- CAUTION: LIMIT APU STARTS TO 3/HR, OTHERWISE STARTER MOTOR DAMAGE CAN OCCUR.
No, Low, or Fluctuating Bleed Air Pressure:
- Action #1 = If no APU LRU faults are found in the CFDS, restart APU and verify bleed air operations in ECS 2-Pack mode.
- Action #2 = If NO AIR continues, R/R A/C Bleed Switch.
- General info = Most «NO AIR» defects should have a Faulted LRU observed in the CFDS last leg reports.
FCN(Fault Code Number) = TSM Task.
(007, 008, 009, 010)=TSM49-70-00-810-816.
(016, 017, 018, 019)=TSM49-00-81-810-853.
(026, 027, 028, 029)=TSM49-00-81-810-854.
(031)=TSM49-00-81-810-852.
(076, 077, 215)=TSM49-00-81-810-835.
(079)=TSM49-00-81-810-802/806/813/824/836.
(081, 082)=TSM49-00-81-810-858.
(083)=TSM49-00-81-810-811/840.
(088, 096, 097)=TSM49-00-81-810-861.
(089, 091)=TSM49-00-81-810-856.
(099, 245)=TSM49-00-81-810-818/820/867.
(100)=TSM49-00-81-810-808/822/839.
(102)=TSM49-00-81-810-849.
(105, 106, 107)=TSM49-00-81-810-807/823/857.
(109, 110)=TSM49-00-81-810-851.
(113, 114)=TSM49-00-81-810-834.
(120)=TSM49-00-81-810-832.
(123)=TSM49-00-81-810-831.
(128, 146)=TSM49-00-81-810-825.
(204)=TSM49-00-81-810-805.
(205)=TSM49-00-81-810-810.
(206)=TSM49-00-81-810-812.
(208)=TSM49-00-81-810-819.
(209)=TSM49-00-81-810-821.
(211)=TSM49-00-81-810-829.
(212)=TSM49-00-81-810-830.
(215)=TSM49-00-81-810-835.
(216)=TSM49-00-81-810-847.
(218)=TSM49-00-81-810-850.
(240, 241, 242, 243, 244)=TSM49-00-81-810-821.
CFDS Diagram:
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Where does the «APU Auto Shutdown» message appear?
Both the » APU AUTO SHUT DOWN » and » APU EMER SHUT DOWN » appear on the lower-left section of the E/WD (the upper display of the ECAM) as amber messages.
In the procedures section of the FCOM, the title is on a white background. The introduction of that section, «FCOM Procedure Layout», explains how the title formatting corresponds to how the actual message appears.
The APU SD display will also be called. And the word » APU » will appear under » INOP SYS » once the procedure is completed.
From a CBT video on YouTube, here’s what it looks like:
Airbus : APU EMERG SHUTDOWN vs AUTOSHUTDOWN
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Airbus : APU EMERG SHUTDOWN vs AUTOSHUTDOWN
8th Sep 2015, 17:44
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Join Date: May 2014
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Airbus : APU EMERG SHUTDOWN vs AUTOSHUTDOWN
According to the FCOM an APU shuts down automatically with the an ECAM : APU EMER SHUTDOWN , if there is an APU Fire detected on ground , or the flt crew presses the APU FIRE bp , or the ground crew presses the APU SHUT OFF pb on the nose gear interphone panel . However I have had the experience of having the APU auto shutting down with this ECAM for none of the above reasons .
When the APU shuts down automatically for a reason other than a fire then the ECAM shoud display: APU AUTO SHUT DOWN .
However as I said the EMER SHUT DOWN came up at ECAM and the captains after I very brief pause elected to switch it on back again ( subsequently the starts were successful)
Is it the case that Airbus is prone to erroneous EMER SHUT DOWNS in which case we can freely disregard them if none of the above conditions is valid or are there any hidden causes for this to happen to which the best action is to refrain from switching it back on ?