# JASC 2921: Hydraulic Accumulator, Auxiliary

- Type: JASC system/component code (FAA)
- ATA chapter: 29 Hydraulic Power
- Title in the code table: HYDRAULIC ACCUMULATOR, AUXILIARY
- Service difficulty reports: 42
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=29
- Page: https://openairdocs.org/jasc/2921

## What it covers

The component which provides for pressure surge to maintain a constant pressure in the auxiliary system. Typical parts are accumulator, seal, end cap and air valve, etc.

## Latest service difficulty reports

- [SDR DALA2026051302980](https://openairdocs.org/sdr/DALA2026051302980), May 12, 2026: HYDRAULIC SYSTEM, LOW (N334NW)
- [SDR UIEA2024111501093](https://openairdocs.org/sdr/UIEA2024111501093), Nov 15, 2024: RAM AIR TURB, ACTIVATED (N852GT)
- [SDR CNMA2023F00205](https://openairdocs.org/sdr/CNMA2023F00205), Jun 6, 2023: RELAY, INOPERATIVE (N351AX)
- [SDR CALA2022101802842](https://openairdocs.org/sdr/CALA2022101802842), Oct 17, 2022: RELAY, FAILED (N214UA)
- [SDR HALA2022090600256](https://openairdocs.org/sdr/HALA2022090600256), Sep 4, 2022: NONE, NONE (N361HA)
- [SDR 2022F00299](https://openairdocs.org/sdr/2022F00299), Jul 28, 2022: CYLINDER, RUPTURED
- [SDR UIEA2022061300595](https://openairdocs.org/sdr/UIEA2022061300595), Jun 13, 2022: CONNECTOR, LEAKING (N664GT)
- [SDR SWIA202265595](https://openairdocs.org/sdr/SWIA202265595), Mar 27, 2022: NONE, CRACKED (N963SW)
- [SDR CALA2022010500030](https://openairdocs.org/sdr/CALA2022010500030), Jan 4, 2022: AIR DATA MODULE, FAILED (N229UA)
- [SDR FDEA202112233122](https://openairdocs.org/sdr/FDEA202112233122), Dec 23, 2021: PUMP, FAILED (N746FD)
- [SDR 2020FA0000548](https://openairdocs.org/sdr/2020FA0000548), Nov 10, 2020: ACCUMULATOR, LOW PRESSURE (N530LD)
- [SDR JIKA20191118601](https://openairdocs.org/sdr/JIKA20191118601), Nov 18, 2019: ACCUMULATOR, SEPARATED (N673AV)
- [SDR P5CA2019081200167](https://openairdocs.org/sdr/P5CA2019081200167), Aug 11, 2019: RAM AIR TURB, INOPERATIVE (N857GT)
- [SDR CALA2018112302410](https://openairdocs.org/sdr/CALA2018112302410), Nov 22, 2018: WARNING MESSAGE, FALSE ACTIVATION (N445UA)
- [SDR AALA201611089004](https://openairdocs.org/sdr/AALA201611089004), Nov 5, 2016: FILTER HOUSING, LEAKING (N537UW)
- [SDR 9JLA2014072404884](https://openairdocs.org/sdr/9JLA2014072404884), Jul 18, 2014: ACCUMULATOR, LEAKING (N62MF)
- [SDR UALA2013071504920](https://openairdocs.org/sdr/UALA2013071504920), Jul 12, 2013: DOOR, UNSECURE (N644UA)
- [SDR CA130627005](https://openairdocs.org/sdr/CA130627005), Jun 26, 2013: ACCUMULATOR, RUPTURED
- [SDR CA120203003](https://openairdocs.org/sdr/CA120203003), Feb 3, 2012: ACCUMULATOR, FAILED
- [SDR UALA2011102705827](https://openairdocs.org/sdr/UALA2011102705827), Oct 25, 2011: LIMIT SWITCH, DIRTY (N642UA)
- [SDR UALA2011093005308](https://openairdocs.org/sdr/UALA2011093005308), Sep 29, 2011: DIODE, MALFUNCTIONED (N229UA)
- [SDR HALA2011010100006](https://openairdocs.org/sdr/HALA2011010100006), Jan 1, 2011: RESERVOIR, LEAKING (N380HA)
- [SDR CA101018010](https://openairdocs.org/sdr/CA101018010), Oct 17, 2010: CONNECTOR, LOOSE
- [SDR UALA2010092803583](https://openairdocs.org/sdr/UALA2010092803583), Sep 27, 2010: WARNING LIGHT, FALSE ACTIVATION (N676UA)
- [SDR UALA2010040601126](https://openairdocs.org/sdr/UALA2010040601126), Apr 5, 2010: SWITCH, IMPROPER PART (N668UA)
- [SDR CA090331003](https://openairdocs.org/sdr/CA090331003), Mar 25, 2009: ACCUMULATOR, FRACTURED
- [SDR DXTA200702556](https://openairdocs.org/sdr/DXTA200702556), Oct 19, 2007: ACCUMULATOR, LEAKING (N229QS)
- [SDR NSVA20070055](https://openairdocs.org/sdr/NSVA20070055), Mar 2, 2007: DUMP VALVE, MALFUNCTIONED (N237MJ)
- [SDR 0601509604](https://openairdocs.org/sdr/0601509604), Jul 7, 2006: ACCUMULATOR, LEAKING (N604NW)
- [SDR CA050927001](https://openairdocs.org/sdr/CA050927001), Sep 22, 2005: PACKING, FAILED
- [SDR AWXA200400851](https://openairdocs.org/sdr/AWXA200400851), Aug 4, 2004: RELAY, FAULTY (N672AW)
- [SDR CA000824027](https://openairdocs.org/sdr/CA000824027), Jul 13, 2000: ACCUMULATOR, FAILED
- [SDR SIMA1821](https://openairdocs.org/sdr/SIMA1821), Jun 30, 2000: RELAY, INOPERATIVE (N347SB)
- [SDR AWXA9900298](https://openairdocs.org/sdr/AWXA9900298), Sep 6, 1999: B NUT, LOOSE (N646AW)
- [SDR CA990111008](https://openairdocs.org/sdr/CA990111008), Dec 21, 1998: ACCUMULATOR, LEAKING
- [SDR 98ZZZX2026](https://openairdocs.org/sdr/98ZZZX2026), May 13, 1998: DIAPHRAGM, TORN (N801CK)
- [SDR CA971223005](https://openairdocs.org/sdr/CA971223005), Nov 17, 1997: ACCUMULATOR, LEAKING
- [SDR VNAA9709004](https://openairdocs.org/sdr/VNAA9709004), Sep 17, 1997: CHECK VALVE, DEFECTIVE (N423JS)
- [SDR 97ZZZX3497](https://openairdocs.org/sdr/97ZZZX3497), Jul 28, 1997: DIAPHRAGM, TORN
- [SDR 97ZZZX1165](https://openairdocs.org/sdr/97ZZZX1165), Mar 10, 1997: DIAPHRAGM, TORN
- [SDR 97ZZZX1164](https://openairdocs.org/sdr/97ZZZX1164), Mar 10, 1997: DIAPHRAGM, TORN
- [SDR 96ZZZX4128](https://openairdocs.org/sdr/96ZZZX4128), Aug 8, 1996: DIAPHRAGM, RUPTURED (N8076U)

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