REMOVED & REPLAC (N1709A) - [SDR IPXA2023011890027](https://openairdocs.org/sdr/IPXA2023011890027), Jan 17, 2023: Boeing 75724APF. INDICATOR. LEAKING. EMERGENCY DECLARED, RT HYD QTY EICAS INFLIGHT SLOW LOSS OF QTY THEN RT HYD SYS PRESS EICAS. SYS PRESS AND RSVR LGIHTS ON (N436UP) - [SDR CALA2022121203368](https://openairdocs.org/sdr/CALA2022121203368), Dec 12, 2022: Airbus A320232. LINE. LOOSE. GREEN HYD QTY LOW SERVICED GREEN SYSTEM HYD. OPERATED HYD SYSTEM FOR LEAK CHECK. NO LEAKS NOTED. RAN #1 ENGINE AND FOUND (N458UA) - [SDR HALA2022082900251](https://openairdocs.org/sdr/HALA2022082900251), Aug 28, 2022: Airbus A330243. NONE. NONE. ATB - G HYD LEAK MESSAGE SHUT DOWN BOTH ENGINE PUMPS PER EICAM, G HYD LOW LEVEL. PERFORMED BITE TEST OF HSMU PER A330 29 (N384HA) - [SDR DALA2022081605542](https://openairdocs.org/sdr/DALA2022081605542), Aug 13, 2022: Boeing 767332. NONE. NONE. SHIP 198 -ATB- DUE TO CENTER HYDRAULIC SYSTEM PRESSURE LOW EICAS MESSAGE AND ASSOCIATED LIGHT ILLUMINATED. HYDRAULIC PUM (N198DN) - [SDR SWIA202265985](https://openairdocs.org/sdr/SWIA202265985), Jul 3, 2022: Cndair CL6002C10. NONE. FAILED. ON APPROACH WE RECEIVED A HYDRO 3 FAILURE. SYNOPTIC PAGE SHOWS NO FLUID IN SYSTEM 3. RAN QRH AND LANDED UNEVENTFULLY. (F (N730SK) - [SDR UIEA2022061300599](https://openairdocs.org/sdr/UIEA2022061300599), Jun 13, 2022: Boeing 76731B. PRESSURE SENSOR. INOPERATIVE. CENTER HYDRAULIC PRESSURE INDICATOR INOP. REMOVED AND REPLACED CENTER HYDRAULIC PRESSURE TRANSMITTER IAW AMM 29-31-01. O (N664GT) - [SDR CALA2022061001479](https://openairdocs.org/sdr/CALA2022061001479), Jun 10, 2022: Airbus A320232. NONE. LEAKING. ECAM CAUTION MESSAGE - Y ENG PUMP LO PR MESSAGE INOP - HYD REPLACED PTU MANIFOLD QUICK DISCONNECT FITTING O-RING M&E (N429UA) - [SDR DALA2022053103751](https://openairdocs.org/sdr/DALA2022053103751), May 29, 2022: Boeing 757232. PRESSURE SWITCH. LEAKING. SHIP 668 - ATB - DUE TO THE LOSS OF HYD PRESSURE ON THE RT ENG. CORRECTIVE ACTION: INSPECTED FOR ANY LEAKS AND CHECKED T (N668DN) - [SDR DALA2022040602382](https://openairdocs.org/sdr/DALA2022040602382), Apr 5, 2022: Boeing 737900ER. HYDRAULIC SYSTEM. WARNING LIGHT. SHIP 3913 -ATO- DISCONTINUED TAKE OFF DUE TO A HYD SYS EDP LOW PRESSURE LIGHT ILLUMINATING. CORRECTIVE ACTION: INSPECTED (N913DU) - [SDR CALA2022021600406](https://openairdocs.org/sdr/CALA2022021600406), Feb 16, 2022: Airbus A320232. RESERVOIR. LOW. *EMERGENCY* Y RSVR LO LVL DISPLAYED ON UPPER ECAM SCREEN. - HYD ECAM HYD Y RSVR LO LVL CREW REPORTS NO ALTERNATE EXTEND (N457UA) - [SDR P5CA2021113000430](https://openairdocs.org/sdr/P5CA2021113000430), Nov 30, 2021: Boeing 7673JHF. INDICATOR. NONE. LEFT HYDRAULIC SYSTEM PRESSURE LOSS AFTER TAKEOFF.(
T/S SYS. FOUND DIFFERENTIAL PRESS. POPOUT IND. AT LEFT EDP CASE DR (N643GT) - [SDR CALA2021112902195](https://openairdocs.org/sdr/CALA2021112902195), Nov 29, 2021: Airbus A320232. PUMP. INOPERATIVE. ECAM CAUTION MESSAGE - G ENG PUMP LO PR MESSAGE INOP - HYD REMOVED AND REPLACED #1 ENG HYD PUMP IN REF TO AMM 29-11-51-4 (N485UA) - [SDR UIEA2021030700483](https://openairdocs.org/sdr/UIEA2021030700483), Mar 7, 2021: Boeing 76736N. INDICATOR. MALFUNCTIONED. L HYD LOW IN FLIGHT, L HYD PRIMARY PUMP EICAS IN FLIGHT.(
FOUND DIFFERENTIAL PRESSURE INDICATOR LEAKING HYD FLUID. REM (N1093A) - [SDR DALA2021030301205](https://openairdocs.org/sdr/DALA2021030301205), Feb 27, 2021: Airbus A330323. PRESSURE SWITCH. FAULTED. SHIP 3317 -DE- CREW DECLARED EMERGENCY DUE TO YELLOW HYDRAULIC SYSTEM LOW PRESSURE. CORRECTIVE ACTION: REPLACED YELLOW S (N817NW) - [SDR RU3A20191219078](https://openairdocs.org/sdr/RU3A20191219078), Dec 17, 2019: Beech C90GTI. INDICATOR. FALSE INDICATION. HYDRAULIC FLUID LOW ILLUMINTAED. INDICATOR REPLACEMENT RESOLVED THIS ISSUE. NOTE: REPAIR WORK PERFORMED UNDER RAPAIR STA (N15) - [SDR AALA201909239028](https://openairdocs.org/sdr/AALA201909239028), Sep 20, 2019: Boeing 737823. INDICATOR. UNRELIABLE. AIRCRAFT WAS GROUNDED: PILOT REPORTS ON TAKEOFF DURING LDG GEAR RETRACTION BOTH ENG AND ELEC HYD SYS A LOW PRESSURE LTS (N960NN) - [SDR CHIA201905213938](https://openairdocs.org/sdr/CHIA201905213938), May 21, 2019: Boeing 234. PRESSURE GAUGE. FAULTY. IN CRUISE FLIGHT UTILITY HYDRAULIC PRESSURE STARTED TO DECREASE BELOW OPERATING LIMITS. FOLLOWED THE EMERGENCY CHECKLIST (N246CH) - [SDR CHIA201904283889](https://openairdocs.org/sdr/CHIA201904283889), May 21, 2019: Boeing 234. PRESSURE GAUGE. FAULTY. IN CRUISE FLIGHT UTILITY HYDRAULIC PRESSURE STARTED TO DECREASE BELOW OPERATING LIMITS. FOLLOWED THE EMERGENCY CHECKLIST (N246CH) - [SDR ANCF2019031701](https://openairdocs.org/sdr/ANCF2019031701), Mar 17, 2019: Airbus A330243. HYDRAULIC SYSTEM. LOW PRESSURE. GREEN HYDRAULIC SYSTEM LO PRESS DURING LANDING. PENDING CORRECTIVE ACTIONS. (N342AV) - [SDR A6WA2018101246109](https://openairdocs.org/sdr/A6WA2018101246109), Oct 10, 2018: Cndair CL6002B19. WARNING SYSTEM. ACTIVATED. OUT OF 15,000FT IN DECENT RECEIVED DYD 1 LO PRESS CAUTION C/W QRH PROBLEM DID NOT RESOLVE. PRESSURE WENT FROM 1800PSI TO (N443AW) - [SDR MASA2018101011437](https://openairdocs.org/sdr/MASA2018101011437), Oct 9, 2018: Cndair CL6002D24. WARNING SYSTEM. ACTIVATED. HYD 3 LOW PRESS CAUTION. (N923FJ) - [SDR FDEA201809112441](https://openairdocs.org/sdr/FDEA201809112441), Sep 11, 2018: Boeing 757236. O-RING. DAMAGED. LT HYD QTY EICAS MSG INFLT ON FINAL FOUND O-RING DAMAGED ON DIFFERENTIAL PRESSURE INDICATOR AT LEFT PYLON FILTER MODULE. (N960FD) - [SDR FDEA201805241313](https://openairdocs.org/sdr/FDEA201805241313), May 24, 2018: Boeing 777F28. TRANSDUCER. LEAKING. 2.5 HOURS OUT OF ANC GOT "HYD QTY LOW C" FOLLOWED BY "RESERVE BRAKE/STEERING" EICAS. HYD QTY C STARTED AT .4 WHEN GOT EI (N880FD) - [SDR HALA2018012300007](https://openairdocs.org/sdr/HALA2018012300007), Jan 20, 2018: Boeing 76733A. WARNING SYSTEM. FALSE ACTIVATION. ETOPS SIGNIFICANT SYSTEM - C HYD PRIM 1 EICAS AND PRESS LIGHT ILLUMINATED. OPERATIONAL CHECK OF CENTER HYD (ELECTRIC) PU (N580HA) - [SDR 2018FA0000043](https://openairdocs.org/sdr/2018FA0000043), Jan 16, 2018: Cndair CL6002B19. TRANSDUCER. FAILED. HYDRAULIC SYSTEM 1 HAD ZERO PSI. RETURN TO AIRPORT. REPLACED THE PRESSURE TRANSDUCER. (N544AV) - [SDR FDEA201711163247](https://openairdocs.org/sdr/FDEA201711163247), Nov 16, 2017: Airbus A300B4605R. HYDRAULIC SYSTEM. MALFUNCTIONED. DURING DESCENT, LOST THE GREEN SYS HYD QTY IAW ECAM/QRH. LANDED WITHOUT GREEN SYSTEM. MANUALLY EXTENDED THE LANDING GEAR (N732FD) - [SDR HALA2017102000256](https://openairdocs.org/sdr/HALA2017102000256), Oct 19, 2017: Boeing 767300. TRANSMITTER. MALFUNCTIONED. LEFT HYDRAULIC QTY LIGHT ILLUMINATED. LEFT SYSTEM EICAS ILLUMINATED. HYD QTY INDICATED .5 RF. COMPLIED W/ QRH DEPRESSURI (N580HA) - [SDR HALA2017071400197](https://openairdocs.org/sdr/HALA2017071400197), Jul 13, 2017: Airbus A330243. PACKING. LEAKING. ATB DUE TO THE HYDRAULIC YELLOW ENGINE NR 2 PUMP LOW PRESSURE. REPLACED YELLOW HP MANIFOLD FITTING PACKING. (N360HA) - [SDR A6WA201745097](https://openairdocs.org/sdr/A6WA201745097), Jul 12, 2017: Cndair CL6002B19. WARNING SYSTEM. ACTIVATED. RECEIVED HYD 1 LO PRESS CAUTION MSG IN FLIGHT. AC PUMP ON, PRESSURE CONTINUED TO FALL. TURNED OFF ACMP AFTER 1 MINUTE OF (N423AW) - [SDR FDEA201608182928](https://openairdocs.org/sdr/FDEA201608182928), Aug 18, 2016: Airbus A300F4605R. WARNING SYSTEM. MALFUNCTIONED. NR 1 ENGINE GREEN SYS HYDRAULIC PUMP LOW PRESSURE. FLIGHT CREW VERIFIED GOOD PRESSURE FROM NR 1 ENGINE HYD GREEN PUMP BY (N671FE) - [SDR A6WA201543047](https://openairdocs.org/sdr/A6WA201543047), Sep 10, 2015: Cndair CL6002B19. WARNING SYSTEM. ACTIVATED. HYD 2 LOW PRESS MSG ON CLIMB OUT. HYD SYS READS 10%. HYD PUMP 2A OPERATED FOR MORE THAN 30 MINUTES. (N417AW) - [SDR AALA20141222013](https://openairdocs.org/sdr/AALA20141222013), Dec 21, 2014: Boeing 767323. INDICATOR. DEFECTIVE. AIR INTERRUPT, DIVERTED & EMER DECLARED. LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT. DURING CLIMB LOST ALL LT HYD SYS FLUI (N370AA) - [SDR CALA2014013190275](https://openairdocs.org/sdr/CALA2014013190275), Jan 29, 2014: Boeing 757222. WARNING SYSTEM. FAULTY. RT HYD SYS PRESS LIGHT INTERMITTENT WITH HYD PUMPS OFF. (N535UA) - [SDR SWAA2014010223779](https://openairdocs.org/sdr/SWAA2014010223779), Dec 29, 2013: Boeing 7373H4. RELAY. FAULTY. AIR TURN BACK DURING TAKEOFF JUST AFTER THE LG HANDLE WAS SELECTED TO THE UP POSITION, THE "A" SYS ELECT LOW PRESSURE LI (N386SW) - [SDR CALA2013112693272](https://openairdocs.org/sdr/CALA2013112693272), Nov 25, 2013: Boeing 767322. LIGHT. INOPERATIVE. C ELEC 2 LOW PRESS LIGHT NOT ILLUMINATED WHILE THE PUMP IS SHED. (N659UA) - [SDR CALA2013110592683](https://openairdocs.org/sdr/CALA2013110592683), Nov 3, 2013: Boeing 757222. WARNING MESSAGE. ACTIVATED. CREW REPORTS LT RESERVOIR PRESS EICAS MESSAGE WITH ASSOCIATED OVERHEAD PANEL LIGHT. (N523UA) - [SDR CALA2013102492361](https://openairdocs.org/sdr/CALA2013102492361), Oct 22, 2013: Boeing 747422. LIGHT. INOPERATIVE. NR 2 EDP LOW PRESS LIGHT INOPERATIVE. RESET HYDIM & PRESS IND CIRCUIT BREAKERS BUT NO HELP. HYD PRESS DISPLAY OK ON EICA (N117UA) - [SDR CALA2013102192222](https://openairdocs.org/sdr/CALA2013102192222), Oct 19, 2013: Boeing 757222. UNKNOWN. MALFUNCTIONED. LT HYD SYSTEM MESSAGE, FLIGHT DIVERTED. PULLED HYD PAGE ON EICAS & NOTICED LT SYSTEM PRESS 1810 PSI QUANTITY NORMAL, JUS (N589UA) - [SDR AALA20130523009](https://openairdocs.org/sdr/AALA20130523009), May 23, 2013: Boeing 767323. INDICATOR. LEAKING. CREW REPORTED LT HYD SYS PRESSURE EICAS MESSAGE FOLLOWED BY LT HYD QTY MESSAGE. EMERGENCY DECLARED, FLIGHT LANDED WITHOU (N362AA) - [SDR HNAA2013030100099](https://openairdocs.org/sdr/HNAA2013030100099), Mar 1, 2013: Dhav DHC8102. TRANSMITTER. FAILED. NR 2 MAIN HYD PRESSURE INDICATION DROPPED TO 0 PSI ON TAKEOFF ROLL. NO CAUTION LIGHTS ILLUMINATED AND HYD QUANTITY IS GO (N816EX) - [SDR IPXA13177254](https://openairdocs.org/sdr/IPXA13177254), Feb 21, 2013: Airbus A300F4622R. TRANSMITTER. FAILED. ON INITIAL CLIMBOUT AT APPROX 6-700 FT. BOTH HYD GREEN SYS PUMPS FAILED SIMULTANEOUSLY. TROUBLESHOOTING FOUND GREEN HYD (N128UP) - [SDR UALA2013020700753](https://openairdocs.org/sdr/UALA2013020700753), Feb 6, 2013: Boeing 757222. PRESSURE SWITCH. FAILED. LEFT ENGINE LOW PRESSURE LIGHT TESTED OK. LIGHT OFF WITH ENGINE SHUT DOWN. REPLACED LOW PRESSURE EDP SWITCH AS PER AMM, (N545UA) - [SDR UALA2013010300017](https://openairdocs.org/sdr/UALA2013010300017), Jan 3, 2013: Boeing 767322. SWITCH. UNSECURE. LEFT ENGINE EDP 'PRESS' LT DOES NOT ILLUMINATE WHEN DE-SELECTED WITH ENGINE RUNNING, EICAS INDICATES PUMP IS DEPRESSURIZ (N672UA) - [SDR AALA20121219001](https://openairdocs.org/sdr/AALA20121219001), Dec 18, 2012: Boeing 767323. INDICATOR. LEAKING. JFK - INFLIGHT ORD-LHR. CREW REPORTED LEFT HYDRAULIC SYSTEM QUANTITY STATUS MESSAGE. EMERGENCY DECLARED FLIGHT DIVERTED (N399AN) - [SDR UALA2012112806843](https://openairdocs.org/sdr/UALA2012112806843), Nov 26, 2012: Boeing 757222. LIGHT. INOPERATIVE. RIGHT HYDRAULIC SYSTEM PRESS LIGHT DOES NOT ILLUMINATE WITH PUMPS OFF. REPLACED LIGHT ASSY L3 ON M10050 OVHD AND REPAIRE (N544UA) - [SDR UALA2012110606380](https://openairdocs.org/sdr/UALA2012110606380), Nov 1, 2012: Boeing 767322. PRESSURE SWITCH. FAULTY. NR 1 ENGINE HYD EDP LOW PRESSURE LIGHT DOES NOT ILLUMINATE WHEN ENGINE IS SHUT DOWN. REF SM 29-00-02 PG 101 SHEET 1 JUMP (N647UA) - [SDR ERAA20120076](https://openairdocs.org/sdr/ERAA20120076), Oct 4, 2012: Dhav DHC8103. CIRCUIT BREAKER. DEFECTIVE. NR 1 STANDBY HYDRAULIC GAUGE INDICATES PRESSURE WITH SWITCH SELECTED TO "NORMAL" (OFF) POSITION. INSTALLED SERVICEABLE A (N882EA) All 160: https://openairdocs.org/jasc/2931/reports.md ## 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 2922](https://openairdocs.org/jasc/2922): Hydraulic Filter, Auxiliary (20 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 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/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.