# Service difficulty reports: JASC 2915

A list on [JASC 2915](https://openairdocs.org/jasc/2915.md).

Reports filed under 2915 · Hydraulic Pressure Relief Valve, Main, newest first.

Page 1 of 3 · 101 reports

- [SDR 2023FA0000403](https://openairdocs.org/sdr/2023FA0000403.md): Check Valve · failed · Aug 3, 2023 · N600SJ · Lear 60LEAR
  > ON THURSDAY, 8/3/23, FLIGHT CYO602, N600SJ WAS AT CRUISE ALTITUDE, ENROUTE FROM KSDL TO KBFI WHEN THE CREW NOTICED THE LH & RH HYDRAULIC PRESSURE WARNING LIGHTS ILLUMINATE. VIA WIFI INSTALLED ON THE AIRCRAFT, THE CAPTAIN CALLED ATI JET MAINTENANCE TO INFORM TH
- [SDR 2022FA0000394](https://openairdocs.org/sdr/2022FA0000394.md): None · cracked · Jul 24, 2022 · N70PS · Bombdr BD7001A10
  > ACFT RETURNED TO FIELD, DO TO LOSS OF #1 HYDRAULIC FLUID. MX FOUND A CRACKED PRESSURE LINE AND REPLACED. OPS CHECK & LEAK CHECKS WERE GOOD
- [SDR FDEA2020070211411](https://openairdocs.org/sdr/FDEA2020070211411.md): Relief Valve · stuck · Jul 1, 2020 · N743FD · Airbus A300B4622R
  > IN CRUISE FLIGHT NOTICED GREEN SYSTEM QUANTITY SLOWLY DROPPING INTO YELLOW RANGE. EVENTUALLY GOT TO THE RED DOT FOLLOWED BY THE ECAM ALERT FOR LOW SYSTEM QUANTITY. FOLLOW ECAM PROCEDURE. MFG L95B13-401, MSN - N/A. FOUND DEPRESSURIZATION RELIEF VALVE STUCK
- [SDR SWIA2019102246550](https://openairdocs.org/sdr/SWIA2019102246550.md): O-Ring · defective · Oct 21, 2019 · N752EV · Cndair CL6002C10
  > HYD PUMP 3B CAUTION MSG ON SHORT FINAL. IB GND SPLRS CAUTION ON SHORT FINAL. CONTINUED LANDING. STEERING INOP ON LANDING. UPON STOPPING, HYD 3 FLUID LEVEL SHOWING 0%. TOW TO GATE REQUIRED. FLT # 3199 CLOSEDFOUND 3B PRESSURE MANIFOLD DELTA P SWITCH LEAKING OUT
- [SDR HALA2019091200374](https://openairdocs.org/sdr/HALA2019091200374.md): Relief Valve · inoperative · Sep 12, 2019 · N378HA · Airbus A330243
  > ETOPS - HYD B RSVR LO AIR PR ON ECAM. TROUBLESHOOT AND FOUND BLUE HYDRAULIC RESERVOIR RELIEF VALVE (FIN:5001JM2) INOP. WILL NONT HOLD HEAD PRESSURE. NEED TO BE REPLACED. 669735 12SEP19. REMOVED AND REPLACED BLUE PRESSURE AIR RELIEF VALVE PER 29-14-33. LEAK CK
- [SDR FDEA201606252139](https://openairdocs.org/sdr/FDEA201606252139.md): Relief Valve · faulty · Jun 25, 2016 · N722FD · Airbus A300B4622R
  > ON CLIMBOUT, APPROXIMATELY 2500' GOT ECAM, GROUND HYD RESERVOIR LOW AIR PRESSURE, PRESSURE WAS STEADY, ECAM CLEARED ITSELF. GOT SAME ECAM ON FINAL, APPROXIMATELY 1500' EXECUTED GO AROUND. RETURNED TO DEPARTURE. REMOVED AND REPLACED PRESSURE RELIEF VALVE PER
- [SDR ASMF201407005](https://openairdocs.org/sdr/ASMF201407005.md): Relief Valve · leaking · Jun 23, 2014 · N861AM · Boeing 73783N
  > DURING TRANSIT CHECK, CAPTAIN REPORTED AN ABNORMAL FUME & ODOR WITH NO EVIDENCE OF SMOKE IN CABIN CREW. PERFORMED SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW MM 05-51-56, DETECTING THE LT PRESS RELIEF VLV WITH HYD LEAK. THE LT PRESS RELIEF VLV WAS REPL
- [SDR CA140410005](https://openairdocs.org/sdr/CA140410005.md): Relief Valve · leaking · Apr 3, 2014 · Bombdr DHC8400
  > (CAN) NR 1 HYD QTY AND PRESSURE ZERO. EDP CAUTION LIGHT ILLUMINATED. MAINTENANCE REPLACED A LEAKING BALANCED RELIEF VALVE.
- [SDR CALA2013092791517](https://openairdocs.org/sdr/CALA2013092791517.md): Relief Valve · leaking · Sep 26, 2013 · N558UA · Boeing 757222
  > HYD FLUID RUNNING OUT OF FS COMPARTMENT JUST FWD FOR APU DOORS. FOUND PRESSURE RELIEF VALVE ABOVE HORIZONTAL STAB LT SIDE LEAKING BETWEEN FITTING & VALVE HOUSING.
- [SDR SIMA20130610001](https://openairdocs.org/sdr/SIMA20130610001.md): Relief Valve · faulty · Jun 8, 2013 · N501BG · Cndair CL6002C10
  > THE CREW REPORTED THAT AFTER TAKEOFF THE GEAR WOULD NOT RETRACT. THE GEAR HANDLE WORKED NORMAL. THE CREW DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. THE ACFT LANDED WITHOUT INCIDENT. THE ACFT WAS REMOVED FROM SERVICE. R & R THE SYS NR 3 PRIORITY BALAN
- [SDR SIMA20130607007](https://openairdocs.org/sdr/SIMA20130607007.md): Relief Valve · faulty · Jun 7, 2013 · N515AE · Cndair CL6002C10
  > THE CREW REPORTED THAT AFTER TAKEOFF THEY RECEIVED A NOSE GEAR DISAGREE WARNING, DURING LANDING GEAR RETRACTION. THE CREW DECLARED AN EMERGENCY AND DIVERTED. THE ACFT LANDED WITHOUT INCIDENT. THE ACFT WAS REMOVED FROM SERVICE. R & R THE NR 3 PRIORITY BALANC
- [SDR VNAA2012121100009](https://openairdocs.org/sdr/VNAA2012121100009.md): Relief Valve · failed · Dec 11, 2012 · N718PS · Cndair CL6002C10
  > CREW REPORTED NOSE GEAR DID NOT RETRACT AFTER TAKEOFF. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED SYSTEM THREE (3) PRIORITY BALANCED RELIEF VALVE AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS.
- [SDR UALA2012110506305](https://openairdocs.org/sdr/UALA2012110506305.md): Pressure Switch · faulty · Nov 2, 2012 · N657UA · Boeing 767322
  > RIGHT ENGINE ELEC HYD DEMAND PUMP DID NOT COME ON IN AUTO OK IN ON POSITION. REF SSM 29-00-03 SHT 1 JUMPERED SWITCH S31 PINS 3 AND 2 AND PUMP OPERATES NORMALLY IN AUTO. REQUIRES SWITCH S31 PCN 481-0076 AND SEAL 750-5644. PUMP AND SYSTEM PRESSURE LT OPS NORM
- [SDR UALA2012082304718](https://openairdocs.org/sdr/UALA2012082304718.md): Pressure Switch · faulty · Aug 21, 2012 · N656UA · Boeing 767322
  > LEFT ELEC HYD PUMP DOES NOT OPERATE IN AUTO. DEFERRED DUE TIME ON FUNCTION OPERATES NORMAL. REPLACED S26 PRESS SWITCH AND D54 CONNECTOR. OP CHECKS OKAY.
- [SDR UALA2012022801217](https://openairdocs.org/sdr/UALA2012022801217.md): Pressure Switch · faulty · Feb 27, 2012 · N673UA · Boeing 767322
  > FOUND LEFT HYDRAULIC SYSTEM PRESSURE LIGHT AND ASSOCIATED EICAS "L HYD SYS PR" MESSAGE INOP. FOUND ELEC HYD PUMP L CTL S27 PRESSURE SWITCH OPEN. VERIFIED THIS IS ALSO THE PROBLEM WITH RUDDER RATIO. SWITCH NIS DEN PCN (481-0076). REPLACED S27 REF IPC 29-11-
- [SDR UALA2012011800389](https://openairdocs.org/sdr/UALA2012011800389.md): Pressure Switch · faulty · Jan 18, 2012 · N664UA · Boeing 767322
  > C ADP CYCLES ON AND OFF IN AUTO MODE. CREW COMMENTS: SUSPECT 'C' ADP CYCLING DURING GEAR RETRACTION AS PER DESCRIPTION BY F/A IN MID CABIN. AUTO FUNCTION INOP PER MEL. REPLACED PRESSURE SWITCH PER AMM.
- [SDR AALA20120112STL01](https://openairdocs.org/sdr/AALA20120112STL01.md): Shutoff Valve · leaking · Jan 11, 2012 · N699AN · Boeing 757223
  > STL - CREW REPORTED LOSS OF RIGHT HYDRAULIC SYSTEM AND PRESSURE. EMERGENCY DECLARED FLIGHT LANDED STL WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND DELTA P INDICATOR AT RIGHT HYDRAULIC SYSTEM PRESSURE MODULE BLOWN OUT CAUSING HYDRAULIC FAILURE. RE
- [SDR VNAA2011100600008](https://openairdocs.org/sdr/VNAA2011100600008.md): Relief Valve · leaking · Oct 2, 2011 · N228PS · Cndair CL6002B19
  > CREW REPORTED GEAR DISAGREE AND RED INDICATION FOR BOTH MAIN GEAR UPON SELECTION OF GEAR DOWN ON APPROACH INTO BNA. CREW RAN QRH AND RECEIVED THREE (3) GREEN INDICATIONS AND HYD 3 LOW PRESS CAUTION. AIRCRAFT LANDED IN BNA WITHOUT INCIDENT. MAINTENANCE TROUB
- [SDR VNAA2011100500005](https://openairdocs.org/sdr/VNAA2011100500005.md): Relief Valve · sticks · Oct 1, 2011 · N228PS · Cndair CL6002B19
  > CREW REPORTED ANTI-SKID INBOARD AMBER MESSAGE UPON WOW (WEIGHT-OFF-WHEELS) ON DEPARTURE FROM DAY. AFTER GEAR UP SELECTION, MESSAGE EXTINGUISHED, FOLLOWED BY GEAR DISAGREE WARNING. LEFT MAIN GEAR WAS SLOW IN COMING UP. AIRCRAFT RETURNED TO DAY AND LANDED WIT
- [SDR UALA2011092005081](https://openairdocs.org/sdr/UALA2011092005081.md): Pressure Switch · faulty · Sep 20, 2011 · N652UA · Boeing 767322
  > LEFT HYD DEMAND PUMP FAILED TO OPERATE IN AUTO WITH ENGINE OFF. WORKS OK IN ON POSITION. -RDF-T:RPL S27 ELEC HYD PUMP L CONTROL PRESSURE SWITCH, NO HELP. REPLACED RELAYS K130, K134, & K131 NO HELP. REPLACED L DEMAND PUMP SWITCH ASSY S5, NO HELP. CHECKED
- [SDR USAA2011090600025](https://openairdocs.org/sdr/USAA2011090600025.md): Pressure Switch · defective · Sep 2, 2011 · N622AW · Airbus A320231
  > CREW REPORTED LOSS OF GREEN HYDRAULIC SYSTEM ON DESCENT INTO PDX. CONDUCTED GRAVITY EXTENSION OF LANDING GEAR AND DECLARED AN EMERGENCY; PASSENGERS WERE NOT INSTRUCTED TO BRACE. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE HYDRAULIC PUMP IAW AIRBUS MAINTENAN
- [SDR UALA2011080804147](https://openairdocs.org/sdr/UALA2011080804147.md): Shutoff Valve · leaking · Aug 5, 2011 · N666UA · Boeing 767322
  > ACTIVE HYDRAULIC LEAK FOUND CTR NR 1 ISOLATION VALVE. REPLACED ACMP PRESSURE SHUT-OFF VALVE PER MM.
- [SDR UALA2011072003688](https://openairdocs.org/sdr/UALA2011072003688.md): O-Ring · leaking · Jul 19, 2011 · N432UA · Airbus A320232
  > YELLOW SYSTEM QTY LOSS, FLIGHT DIVERTED. ECAM LED TO NO 'Y' HYD SYST. SAMC TEXT: YELLOW SYST QTY DECREASED TO REFILL. MAINT TEXT: FLT CRW VERBAL, TURNED PUMP OFF AFTER GETTING LO PRESS PER FOM PROC, THEN TURNED PUMP BACK ON WITH PTU AT 1500' AGL FOR LDG, NO
- [SDR CA110715004](https://openairdocs.org/sdr/CA110715004.md): Housing · fractured · Jul 14, 2011 · Boeing 747SPJ6
  > DURING TAKEOFF ROTATION, THE NR 4 HYD PRESSURE CAUTION LIGHT CAME ON. FLIGHT ENGINEER REPORTED FLUID QTY WENT TO ZERO AFTER GEAR RETRACTION. TOWER REPORTED SMOKE FROM NR 4 ENGINE. UNEVENTFUL LANDING AFTER COMPLETING PROCEDURES AND CONFIGURING AIRPLANE FOR L
- [SDR AALA20110628DFW02](https://openairdocs.org/sdr/AALA20110628DFW02.md): Pressure Switch · inoperative · Jun 28, 2011 · N682AA · Boeing 757223
  > DFW - CREW REPORTED LEFT HYDRAULIC PRESSURE WARNING LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT ENGINE DRIVEN PUMP LOW PRESSURE SWITCH. SYSTEM GROUND
- [SDR USAA2011062400007](https://openairdocs.org/sdr/USAA2011062400007.md): Pressure Switch · faulty · Jun 21, 2011 · N678AW · Airbus A320232
  > SFO-PHL - EL - INFLIGHT LOSS OF GREEN HYDRAULIC PRESSURE. GREEN ENGINE PUMP WAS TURNED OFF WITHIN 30 SECONDS. FOUND LEFT ENGINE HYD PRESSURE SWITCH AT FAULT. REPLACED LEFT ENGINE HYDRAULIC PRESSURE SWITCH PER AMM 29-11-17-400-041. SERVICED HYDRAULIC QUANTI
- [SDR VNAA2011062400022](https://openairdocs.org/sdr/VNAA2011062400022.md): Pressure Switch · malfunctioned · Jun 20, 2011 · N218PS · Cndair CL6002B19
  > CREW REPORTED RECEIVING AMBER 3A HYD CAS MESSAGE UPON LIFT-OFF BEFORE GEAR RETRACTION ON DEPARTURE FROM CLT. CREW CYCLED SWITCH, RECOVERED PRESSURE AND CAS MESSAGE WENT AWAY. AFTER CREW CYCLED GEAR UP, GOT RED NOSE GEAR DOOR CAS MESSAGE. CREW RETURNED TO CL
- [SDR 9JLA03503](https://openairdocs.org/sdr/9JLA03503.md): Pressure Switch · defective · Apr 25, 2011 · N803JL · Raythn HAWKER800
  > THE FLIGHT CREW REPORTED THE "HYD 1 LO PRESS" ILLUMINATED AFTER THE FINAL FLAP SETTING AND REMAINED ON. TROUBLESHOOTING FOUND THE NR 1 HYD PRESSURE SWITCH P/N 15185-4SN1 TO BE DEFECTIVE. A NEW SWITCH WAS INSTALLED, FUNCTIONAL CHECKS SATISFACTORY.
- [SDR UALA2011022100851](https://openairdocs.org/sdr/UALA2011022100851.md): Circuit Card · faulty · Feb 19, 2011 · N215UA · Boeing 777222
  > HYD RESERVOIR PRESSURE LT STATUS MESSAGE. REPLACED A17 HYD LOW PRESS CARD IAW MM. REPLACED PRESSURE SWITCH. REPLACED A4 HYD DIM CARD.
- [SDR MASA2010122001499](https://openairdocs.org/sdr/MASA2010122001499.md): Relief Valve · faulty · Dec 17, 2010 · N939LR · Cndair CL6002D24
  > GEAR DISAGREE AFTER RETACTION. MX REPLACED SEL VALVE AND NR 3 HYD BALANCE RELIEF VALVE.
- [SDR C2XA10IA310](https://openairdocs.org/sdr/C2XA10IA310.md): Pressure Switch · inoperative · Nov 22, 2010 · N15926 · Emb EMB145EP
  > IAH - FLIGHT 2213, THE CREW REPORTED THAT THE AP YAW DAMP, AND RUDDER SYS 1&2 FAILED TWICE DURING FLIGHT. THE CREW PERFORMED QRH BOTH TIMES AND SUCCESSFULLY BROUGHT BACK RUDDER SYS 1&2. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENA
- [SDR AALA20100706SEA02](https://openairdocs.org/sdr/AALA20100706SEA02.md): Relief Valve · failed · Jul 6, 2010 · N9677W · Doug DC983
  > SEA - CREW REPORTED RIGHT HYDRAULIC SYSTEM LOSS PRESSURE WENT TO 0 PSI IN FLIGHT. EMERGENCY DECLARED LANDED SEA WITHOUT INCIDENT. RIGHT PRESSURE RELIEF VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.
- [SDR AALA20100214ORD01](https://openairdocs.org/sdr/AALA20100214ORD01.md): Relief Valve · faulty · Feb 14, 2010 · N369AA · Boeing 767323
  > ORD - CREW REPORTED HYDRAULIC SYSTEM MAINTENANCE MESSAGE AND THEN THE CENTER 2 HYDRAULIC OVERHEAT LIGHT ILLUMINATED. EMERGENCY DECLARED RETURNED ORD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED AIR DRIVEN PUMP FILTER MODULE PRESSURE RELI
- [SDR CA091015005](https://openairdocs.org/sdr/CA091015005.md): Pressure Switch · intermittent · Sep 30, 2009 · Cessna 525B
  > (CAN) SWITCH INTERMITTENT OPERATION WOULD STAY ON WHEN SHOULD BE OFF. SWITCH REPLACED NEW.
- [SDR AALA20090816TUL01](https://openairdocs.org/sdr/AALA20090816TUL01.md): Pressure Switch · inoperative · Aug 16, 2009 · N39365 · Boeing 767323
  > EZE - CREW REPORTED RUDDER RATIO LIGHT ILLUMINATED WITH STRONG CROSS WINDS. RETURNED EZE WITHOUT INCIDENT. REPLACED PRESSURE SWITCH ON LEFT ENGINE DRIVEN PUMP CASE DRAIN FILTER MODULE. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR DL75E091258](https://openairdocs.org/sdr/DL75E091258.md): Seal · broken · Jul 26, 2009 · N711ZX · Boeing 757231
  > LEFT HYD RSVR LIGHT ON. FOUND SEAL ON L HYD PRESS RELIEF SLEEVE BROKEN. REMOVED AND REPLACED PER MM, LEAK CHECK GOOD. LT HYD RSVR LIGHT OFF.
- [SDR CA090723011](https://openairdocs.org/sdr/CA090723011.md): Switch · inoperative · Jul 23, 2009 · Snias AS350B2
  > (CAN) HYD PRESSURE WARNING SWITCH STOPPED INDICATING CHANGES IN HYD PRESSURE. DISCOVERED DURING PRE-TAKEOFF CHECKS AND THE FLIGHT WAS ABORTED AS THERE WOULD BE NO INDICATION OF HYD FAILURE IN FLIGHT.
- [SDR CA090630007](https://openairdocs.org/sdr/CA090630007.md): Pressure Switch · leaking · Jun 29, 2009 · Urocop EC120B
  > (CAN) AFTER LANDING, NOTICED A BIT OF OIL ON THE SIDE OF THE ACFT. OPENED THE COWL TO FIND A LOT OF HYD FLUID ON THE DECK. THIS WAS THE SECOND FLIGHT OF THE DAY AND HAD CHECKED ALL THE OILS AND THE DECK WAS DRY BEFORE THE FLIGHT. THE FIGHT WAS 2.2 HOURS.
- [SDR CA090515003](https://openairdocs.org/sdr/CA090515003.md): Relief Valve · failed · May 13, 2009 · Robsin R44RAVENII
  > (CAN) FOLLOWING SHUTDOWN, PILOT NOTICED A SEVERE HYD LEAK IN TRANSMISSION AREA. BECAUSE OF COOLING AIR HOSE THAT IS DIRECTED RIGHT AT HYD RESERVOIR, FLUID SPRAYED ALL AROUND TRANSMISSION. PILOT REFILLED RESERVOIR TO APPROPRIATE LEVEL IAW SERVICING TRAINING, B
- [SDR AALA2009041700001](https://openairdocs.org/sdr/AALA2009041700001.md): Fuse · blown · Apr 17, 2009 · N510AM · Doug DC982
  > DFW - AIRCRAFT EXPERIENCED RIGHT HYDRAULIC QUANTITY LOSS AND LANDING GEAR DOORS DAMAGED DURING LANDING DUE TO NO PRESSURE TO RETRACT ON LANDING. AIRCRAFT REMOVED FROM SERVICE. FOUND TWO BRAKE FUSES BLOWN AT LEFT WING SPAR. REPLACED HYDRAULIC FUSE AND HYDRAU
- [SDR SIMA200812902](https://openairdocs.org/sdr/SIMA200812902.md): Pressure Switch · leaking · May 5, 2008 · N619AE · Emb EMB145LR
  > ON FLIGHT 4371, CREW REPORTED LOSS OF HYDRAULIC FLUID THEN HYD SYSTEM 2 FAILED. CREW DECLARED EMERGENCY. AIRCRAFT LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND RT PRESSURE SWITCH LEAKING. REMOVED AND REPLACED PRESSURE SWITCH IAW EMB145 32-4
- [SDR 2008FA0000100](https://openairdocs.org/sdr/2008FA0000100.md): Pressure Switch · failed · Feb 5, 2008 · N444MW · Lear 45LEAR
  > APPROXIMATELY 40 MIN IN TO PLANNED FLIGHT, WHILE AT FL410, IN FINAL CRUISE CONDITION, A WHITE ADVISORY CAS MESSAGE APPEARED INDICATING (MAIN HYD QTY LOW). FLIGHT CREW OPENED THE APPROPRIATE CREW CHECKLIST AND FLIGHT MANUAL AND REFERENCED THE CHECKLIST WHICH S
- [SDR 2008FA0000089](https://openairdocs.org/sdr/2008FA0000089.md): Pressure Switch · failed · Jan 29, 2008 · N444MW · Lear 45LEAR
  > LT HYDRAULIC PRESSURE SWITCH (S9) FAILED IN FLIGHT, RESULTING IN LOSS OF HYDRAULIC FLUID AND FAILURE OF BOTH LT AND RT HYDRAULIC PUMPS. NECESSITATED A FLIGHT DIVERSION TO AN ALTERNATE AIRPORT WITH AN EMERGENCY DECLARATION. (K)
- [SDR CA071030001](https://openairdocs.org/sdr/CA071030001.md): Check Valve · obstructed · Oct 24, 2007 · Bell 412EP
  > (CAN) DURING GROUND RUN, FIRST START OF THE DAY, BOTH HYDRAULIC SYSTEMS NR 1 AND NR 2 INDICATED GOOD PRESSURE AND BOTH HYDRAULIC CAUTIONS WERE EXTINGUISHED. THE FORCE TO DISPLACE PEDALS WAS NOTED TO BE ABNORMALLY HIGH. TO CONFIRM SYSTEM NR 1 WAS FUNCTIONING CO
- [SDR CA070518009](https://openairdocs.org/sdr/CA070518009.md): Relief Valve · malfunctioned · May 16, 2007 · Bombdr CL6002D15
  > (CAN) ON PUSHBACK FROM GATE CREW RECEIVED NOSE STEERING INOP MESSAGE. AIRCRAFT STEERING MEL`D. AFTER TAKEOFF GEAR FAILED TO RETRACT. AIRCRAFT RETURNED TO ORIGINATING AIRPORT FOR NORMAL LANDING. MAINTENANCE TROUBLESHOOTING REPLACED HYD BALANCE RELIEF VALVE, NR
- [SDR MASA200602563](https://openairdocs.org/sdr/MASA200602563.md): Pressure Switch · failed · Nov 11, 2006 · N455YV · Dhav DHC8202
  > ASH 7041 JAC. ABORTED TAKEOFF DUE TO NR 1 HYDRAULIC PRESSURE CAUTION LIGHT WITH POWER ADVANCED. MX REMOVED AND REPLACED NR 1 HYD PRESS SW.
- [SDR UPS06847169](https://openairdocs.org/sdr/UPS06847169.md): Relief Valve · stuck · Jun 21, 2006 · N729UP · Doug DC871F
  > INSPECTION TYPE:N/A 100 MILES OUT OF SLC F/O NOTICED A LOSS OF HYDRAULIC QTY. CREW RAN CHECKLIST AND DECLARED AN EMERGENCY. LANDING WAS UNEVENTFUL. FOUND LT BOGIE SWIVEL UNLOCK CYC - RELIEF VALVE STUCK IN THE OPEN POSITION. REMOVED AND REPLACED LT RELIEF V
- [SDR 05172006C](https://openairdocs.org/sdr/05172006C.md): Dump Valve · faulty · May 15, 2006 · N350CJ · Saab 340B
  > AFTER GEAR RETRACTION MAIN HYDRAULIC PRESSURE WOULD DEPLETE RAPIDLY (WITHIN 5 SECONDS) AND HYDRAULIC PUMP WOULD RUN. THIS OCCURRED FOR 10 MINUTES THEN MAIN HYDRAULIC PRESSURE STABILIZED. A/C REQUIRES OPERATIONAL CHECK FLIGHT TO VERIFY HYD PRESSURE PARAMETERS
- [SDR 0501639952](https://openairdocs.org/sdr/0501639952.md): Pressure Valve · failed · Nov 24, 2005 · N916RW · Doug DC931
  > AS THE AIRCRAFT WAS TAXING OUT FOR DEPARTURE THE RT HYDRAULIC SYSTEM LOST FLUID AND PRESSURE. THE AC RETURNED TO THE GATE WITHOUT ANY FURTHER PROBLEMS. MAINTENANCE FOUND THE RT HYDRAULIC SYSTEM PRESSURE RELIEF VALVE HAD FAILED AND REPLACED IT. ALSO THE RT ELEC
- [SDR CA050125000](https://openairdocs.org/sdr/CA050125000.md): Pressure Valve · faulty · Jan 23, 2005 · Dhav DHC8102
  > (CAN) THE CREW REPORTED, AFTER GEAR UP SELECTION, LOST NR 2 MAIN AND STANDBY PRESSURE (SPU ON). AFTER APPROXIMATELY 3 MINUTES THEY RECEIVED NR 2 STANDBY PUMP HOT LIGHT. ON SHORT FINAL NR 2 MAIN PRESSURE RETURNED BUT NR 2 STANDBY HOT LIGHT REMAINED ON EVEN T

Next page: https://openairdocs.org/jasc/2915/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE jasc_code = '2915'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/2915/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.