# JASC 2922: Hydraulic Filter, Auxiliary - Type: JASC system/component code (FAA) - ATA chapter: 29 Hydraulic Power - Title in the code table: HYDRAULIC FILTER, AUXILIARY - Service difficulty reports: 20 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=30 - Page: https://openairdocs.org/jasc/2922 ## What it covers The component which filters sediment from the hydraulic fluid in the auxiliary system. Typical parts are seal, gasket, housing, element, and packing, etc. ## Service difficulty reports (20) - [SDR SWAA2025032007747](https://openairdocs.org/sdr/SWAA2025032007747), Mar 18, 2025: Boeing 7377Q8. FILTER. LOW PRESSURE. AFTER FLAPS 5 HYD A SYSTEM LOW PRESSURE LIGHTS ON BOTH ENG AND ELECTRIC PUMP SHORTLY AFTER LOW PRESSURE LIGHTS ON HYD SY (N7876A) - [SDR UALA2012080704250](https://openairdocs.org/sdr/UALA2012080704250), Jul 31, 2012: Airbus A319131. POWER UNIT. LEAKING. YELLOW-GREEN PTU LEAKING. REPLACED GREEN-YELLOW PTU. BLED SYSTEM AND CHECKED FOR LEAKS. CHECKED OK. OPS CHECK ACCOMPLISH (N814UA) - [SDR UALA2012010600133](https://openairdocs.org/sdr/UALA2012010600133), Jan 3, 2012: Airbus A320232. PUMP. UNDERSERVICED. RAT HYD PUMP IS UNDERSERVICED. REPLACED RAT PUMP. (N457UA) - [SDR UALA2011121406834](https://openairdocs.org/sdr/UALA2011121406834), Dec 13, 2011: Airbus A320232. RAM AIR TURB. NO TEST. RAT FAILS CHECK, NO GREEN LIGHT. RAM AIR TURBINE ASSY OPS CHECKED GOOD, NO LEAKS. (N408UA) - [SDR UALA2011101905650](https://openairdocs.org/sdr/UALA2011101905650), Oct 18, 2011: Airbus A320232. RAM AIR TURB. FAULTY. RAT FAILS TO ILLUMINATE GREEN LIGHT. ACCOMPLISHED AN OPERATIONAL TEST OF RAT MANUAL DEPLOYMENT AND A FUNCTIONAL TEST OF (N436UA) - [SDR 2011FA0000563](https://openairdocs.org/sdr/2011FA0000563), Jul 22, 2011: Diamon DA20C1. PUMP. LEAKING. ENGINE SHUTDOWN IN FLIGHT. UPON INSPECTION, FOUND A FINE DARK PARTICULATE CONTAMINATING FUEL SYS. AIRFRAME BOOST PUMP AP (N238E) - [SDR UALA2011032801483](https://openairdocs.org/sdr/UALA2011032801483), Mar 27, 2011: Airbus A320232. RAM AIR TURB. FAULTY. RAT FAILS TEST. GREEN LIGHT WON'T COME ON AND STAY ON. FIRST TEST FAILED. REPLACED HYD PUMP ASSY RAT HYD PUMP ASSY OP CH (N414UA) - [SDR DL757091335](https://openairdocs.org/sdr/DL757091335), Aug 13, 2009: Boeing 757232. MODULE. BROKEN. PTU AND LT LOW HYD QTY STATUS MSG ON EICAS. FOUND PTU PRESS MODULE FILTER BOWL BROKEN. REMOVED HYD PRESSURE PTU FILTER M (N634DL) - [SDR CA071212014](https://openairdocs.org/sdr/CA071212014), Dec 11, 2007: Snias AS350BA. STRAINER. CONTAMINATED. (CAN) STRAINER WAS INSPECTED AND FOUND CONTAMINATED WITH PARTICLES FOREIGN MATTER AND SLIVERS OF MATERIAL FROM THE O-RIN - [SDR ANCF200700028](https://openairdocs.org/sdr/ANCF200700028), Oct 29, 2007: Boeing 757236. FILTER. CRACKED. PILOT REPORT: AIRPLANE RETURN TO RAMP DUE TO TECHNICAL PROBLEMS ( HYD SYS QTY). DURING INSPECTION FOUND THE POWER TRANSF (N521NA) - [SDR 2005FA0000274](https://openairdocs.org/sdr/2005FA0000274), Dec 22, 2004: BYPASS SWITCH. SHEARED. 1 OF THE SREWS (P/N AA-2100-11D99)HAD THE HEAD SHEAR OFF JUST UNDER THE HEAD. THIS SCREW, 1 OF 4 HOLD THE FILTER BYPASS - [SDR MWEA030009](https://openairdocs.org/sdr/MWEA030009), Jan 7, 2003: Doug DC932. FILTER. DEFECTIVE. RIGHT HYDRAULIC SYSTEM FLUID QUANTITY DEPLETED AND LOST PRESSURE. REMOVED AND REPLACED AUXILIARY LINE FILTER HOUSING AND (N216ME) - [SDR SCNA02004](https://openairdocs.org/sdr/SCNA02004), Jul 15, 2002: Boeing 7378Q8. FILTER HOUSING. Hydraulic "A" system RF after landing. Fault code 293 180 00. Found filter bowl assembly disengaged from filter. Removed (N801SY) - [SDR HEEA077753](https://openairdocs.org/sdr/HEEA077753), Jan 28, 2002: Bell 407. PUMP. LEAKING. FUEL BOOST PUMP LEAKING OUT OF SEAL DRAIN. (N719PH) - [SDR CA011018006](https://openairdocs.org/sdr/CA011018006), Oct 2, 2001: Airbus A330322. O-RING. FRETTED. (CAN) A/C EXPERIENCED LOSS OF YELLOW HYDRAULIC SYS, ECAM WARNING - HYD RSVR LO/HYD SYS LO PR, APPROX 1(ONE) HR INTO FLT. - [SDR 2001FA0000310](https://openairdocs.org/sdr/2001FA0000310), Sep 4, 2001: Piper PA32300. VALVE. MISMANUFACTURED. NUT CAME OFF THE THERMOSTATIC BYPASS VALVE AND FELL INTO THE OIL SUMP. CUSTOMER COMPLAINT, HIGH OIL TEMPERATURE. (N4087R) - [SDR 20010605CW012](https://openairdocs.org/sdr/20010605CW012), May 11, 2001: Boeing 737. HOUSING. CRACKED. HOUSING ASSEMBLY IS CRACKED APPROX 5 INCHES LONG AROUND PACKING AND RETAINER AREA. PROBABLE CAUSE: OVER PRESSURE. - [SDR ARWA980809](https://openairdocs.org/sdr/ARWA980809), Aug 12, 1998: Doug DC862. FILTER. CONTAMINATED. MIA - FLT 617 - HYD OIL TEMP REACHED 80 PERCENT. REMOVED AND REPLACED LEFT WHEEL WELL FILTERS IAW MM 29-10-00. OPS AND L (N1808E) - [SDR CA960729004](https://openairdocs.org/sdr/CA960729004), Jul 7, 1996: Boeing 737275C. CLAMP. FAILED. (CAN) LOST HYDRAULIC QUANTITY AND PRESSURE ON "A" SYSTEM ON TAXI AFTER LANDING. BOTH ENGINES SHUT DOWN. HYDRAULIC LEAK F - [SDR 95ZZZX3646](https://openairdocs.org/sdr/95ZZZX3646), Jun 23, 1995: VALVE. FAILED. THE THERMOSTATIC OIL COOLER BYPASS VALVE WAS REPLACED AT OVERHAUL OF THE ENGINE BY CLYDESDALE AIRCRAFT. THE ENGINE WAS I ## Other codes in chapter 29 - [JASC 2900](https://openairdocs.org/jasc/2900): Hydraulic Power System (333 reports) - [JASC 2910](https://openairdocs.org/jasc/2910): Hydraulic System, Main (11,280 reports) - [JASC 2911](https://openairdocs.org/jasc/2911): Hydraulic Power Accumulator, Main (202 reports) - [JASC 2912](https://openairdocs.org/jasc/2912): Hydraulic Filter, Main (201 reports) - [JASC 2913](https://openairdocs.org/jasc/2913): Hydraulic Pump (Electric/Engine), Main (4,062 reports) - [JASC 2914](https://openairdocs.org/jasc/2914): Hydraulic Handpump, Main (22 reports) - [JASC 2915](https://openairdocs.org/jasc/2915): Hydraulic Pressure Relief Valve, Main (101 reports) - [JASC 2916](https://openairdocs.org/jasc/2916): Hydraulic Reservoir, Main (385 reports) - [JASC 2917](https://openairdocs.org/jasc/2917): Hydraulic Pressure Regulator, Main (65 reports) - [JASC 2920](https://openairdocs.org/jasc/2920): Hydraulic System, Auxiliary (287 reports) - [JASC 2921](https://openairdocs.org/jasc/2921): Hydraulic Accumulator, Auxiliary (42 reports) - [JASC 2923](https://openairdocs.org/jasc/2923): Hydraulic Pump, Auxiliary (138 reports) - [JASC 2925](https://openairdocs.org/jasc/2925): Hydraulic Pressure Relief, Auxiliary (4 reports) - [JASC 2926](https://openairdocs.org/jasc/2926): Hydraulic Reservoir, Auxiliary (14 reports) - [JASC 2927](https://openairdocs.org/jasc/2927): Hydraulic Pressure Regulator, Auxiliary (8 reports) - [JASC 2930](https://openairdocs.org/jasc/2930): Hydraulic Indicating System (549 reports) - [JASC 2931](https://openairdocs.org/jasc/2931): Hydraulic Pressure Indicator (160 reports) - [JASC 2932](https://openairdocs.org/jasc/2932): Hydraulic Pressure Sensor (290 reports) - [JASC 2933](https://openairdocs.org/jasc/2933): Hydraulic Quantity Indicator (121 reports) - [JASC 2934](https://openairdocs.org/jasc/2934): Hydraulic Quantity Sensor (96 reports) - [JASC 2997](https://openairdocs.org/jasc/2997): Hydraulic Power System Wiring (343 reports) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). 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