# Service difficulty reports: Boeing 737-500

A list on [Boeing 737-500](https://openairdocs.org/model/boeing-737-500.md).

Newest first. General aviation reporting is voluntary.

- [SDR CA190613004](https://openairdocs.org/sdr/CA190613004.md): Compressor · contaminated · Jun 12, 2019 · Boeing 737500* · APU Core Engine
  > (CAN) AFTER ARRIVAL AND ENGINE SHUTDOWN WITH APU AND AIR CONDITIONING SYSTEM OPERATING THE CABIN FILLED WITH SMOKE. PASSENGERS WERE DEPLANED NORMALLY IN A EXPEDITED FASHION. AIRPORT FIRE DEPARTMENT CAME AND INSPECTED THE AIRCRAFT. FIRE DEPARTMENT TOOK NO ACTIO
- [SDR COZA20171103118](https://openairdocs.org/sdr/COZA20171103118.md): Switch · intermittent · Nov 2, 2017 · N732KA · Boeing 737500* · Air Distribution System
  > INTERMITTENT LEFT DUCT OVERHEAT LIGHT ON WITH NORMAL DUCT TEMPERATURE INDICATION. DETERMINED TO BE AN INDICATION PROBLEM. REPLACED THE 190 DEGREE AND 250 DEGREE SWITCHES IN THE AIR CONDITIONING DUCT/PLENUM. OPERATIONAL CHECK NORMAL.
- [SDR COZA20171103117](https://openairdocs.org/sdr/COZA20171103117.md): Fuel Control · failed · Oct 31, 2017 · N732KA · Boeing 737500* · APU Engine Fuel and Control
  > APU SHUTDOWN AFTER AN HOUR OF RUN TIME ON THE GROUND. PUT A PRESSURE GAUGE IN THE FUEL LINE BETWEEN THE FUEL CONTROL AND FUEL ATOMIZER. FOUND FUEL PRESSURE AT 25 PSI WITH A REQUIREMENT FOR 50-60 PSI. REMOVED FUEL CONTROL UNIT AND FOUND DRIVE SHAFT SHEARED.
- [SDR COZA20171004114](https://openairdocs.org/sdr/COZA20171004114.md): Control Valve · leaking · Sep 30, 2017 · N732KA · Boeing 737500 · APU Bleed Air System
  > UNSTABLE CABIN PRESSURIZATION. PERFORMED FUNCTIONAL CHECK OF CABIN PRESSURIZATION CONTROLLER WITH NO FAULTS FOUND. FOUND RESIDUAL PRESSURE IN THE BLEED AIR MANIFOLD WITH APU NOT RUNNING. REPLACED THE APU LOAD CONTROL VALVE.
- [SDR COZA20170929112](https://openairdocs.org/sdr/COZA20170929112.md): Accessory Unit · faulty · Sep 27, 2017 · N732KA · Boeing 737500 · Cabin Cooling System
  > DURING AIR CONDITIONING PACK OPERATION ON THE GROUND, LEFT AIR CONDITIONING PACK INDICATED A PACK TRIP AND DUCT OVERHEAT AT PACK START UP. INDICATION FOR THE DUCT TEMPERATURE DID NOT SHOW A DUCT OVERHEAT. DETERMINED THIS TO BE AN INDICATION PROBLEM USING THE
- [SDR COZA20170929111](https://openairdocs.org/sdr/COZA20170929111.md): Start Valve · intermittent · Sep 27, 2017 · N732KA · Boeing 737500 · Engine Start Valves/Controls
  > START VALVE ON RIGHT ENGINE WAS INTERMITTENT OR SLOW TO OPEN WHEN START WAS INITIATED. REPLACED START VALVE AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20170606108](https://openairdocs.org/sdr/COZA20170606108.md): Skin · corroded · Jun 4, 2017 · N732KA · Boeing 737500 · Wing, Plate/Skin
  > LEVEL 3 CORROSION FOUND ON THE UPPER SURFACES OF THE LEFT AND RIGHT WING UNDER THE EMERGENCY EXIT WING WALK PAINT. RIGHT WING UPPER SURFACE LOCATIONS STRINGERS 2,3,4,5,7,8 AND REAR SPAR AT APPROX WBL 71.24-92.5. LEFT WING UPPER SURFACE LOCATIONS STRINGERS 1,
- [SDR COZA20161223104](https://openairdocs.org/sdr/COZA20161223104.md): Controller · loose · Dec 23, 2016 · N732KA · Boeing 737500 · Cabin Pressure Controller
  > THE STANDBY ALT SELECT KNOB ON THE PRESSURIZATION PANEL WAS FOUND TO BE INTERMITTENTLY SLIPPING INTERNALLY WHEN ATTEMPTING TO MAKE NUMBER CHANGES. REPLACED THE PANEL AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20160901093](https://openairdocs.org/sdr/COZA20160901093.md): Oil System · low · Sep 1, 2016 · N732KA · Boeing 737500* · Cabin Cooling System
  > PERFORMED AN OIL QUANTITY INSPECTION ON THE LEFT PACK AIR CYCLE MACHINE. FOUND THE OIL LEVEL BELOW LIMITS IN THE SIGHT GLASS AND SIGNS OF FLUID LEAKAGE FROM THE AIR CYCLE MACHINE. REPLACED THE LEFT PACK AIR CYCLE MACHINE.
- [SDR COZA20160901092](https://openairdocs.org/sdr/COZA20160901092.md): Starter · making metal · Sep 1, 2016 · N732KA · Boeing 737500* · Engine Starter
  > PERFORMED ENGINE STARTER CHIP DETECTOR INSPECTION. FOUND EXCESSIVE METAL PARTICLES ATTACHED TO THE CHIP DETECTOR. REPLACED ENGINE STARTER.
- [SDR COZA20160718082](https://openairdocs.org/sdr/COZA20160718082.md): Actuator · leaking · Jul 14, 2016 · N732KA · Boeing 737500* · Landing Gear Actuator
  > NOSE LANDING GEAR RETRACT ACTUATOR FOUND LEAKING HYDRAULIC FLUID. REPLACED ACTUATOR AND OPERATIONAL & LEAK CHECKED OK.
- [SDR COZA20160718081](https://openairdocs.org/sdr/COZA20160718081.md): Pump · leaking · Jul 14, 2016 · N732KA · Boeing 737500* · Hydraulic Pump (Electric/Engine), Main
  > RIGHT ENGINE HYDRAULIC PUMP FOUND LEAKING HYDRAULIC FLUID FROM SHAFT SEAL DRAIN. REPLACED PUMP AND OPERATIONAL CHECKED NORMAL.
- [SDR COZA20160718080](https://openairdocs.org/sdr/COZA20160718080.md): Heater · inoperative · Jul 14, 2016 · N732KA · Boeing 737500* · Pitot/Static Anti-Ice System
  > AMBER "L ELEV PITOT" LIGHT ILLUMINATED. THIS LIGHT INDICATES A PROBLEM WITH THE ELEVATOR FEEL PITOT PROBE HEATER. REMOVED PROBE AND FOUND INTERNAL HEATER FAILED. REPLACED PITOT PROBE AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20160114076](https://openairdocs.org/sdr/COZA20160114076.md): Mixing Valve · intermittent · Jan 11, 2016 · N732KA · Boeing 737500 · Cabin Temperature Control System
  > DURING AIR CONDITIONING OPERATIONAL CHECKS, LT MIXING VALVE WAS FOUND TO BE STICKING AND INTERMITTENT. REPLACED MIXING VALVE.
- [SDR COZA20160114075](https://openairdocs.org/sdr/COZA20160114075.md): Controller · defective · Jan 11, 2016 · N732KA · Boeing 737500 · Cabin Temperature Control System
  > LEFT DUCT OVERHEAT LIGHT ON, IAW THE FIM REPLACED THE CABIN TEMPERATURE CONTROLLER.
- [SDR COZA20160114074](https://openairdocs.org/sdr/COZA20160114074.md): Accessory Unit · defective · Jan 11, 2016 · N732KA · Boeing 737500 · Cabin Cooling System
  > LEFT DUCT OVERHEAT LIGHT ON, IAW FIM REPLACED AIR CONDITIONING ACCESSORY UNIT.
- [SDR COZA20151215072](https://openairdocs.org/sdr/COZA20151215072.md): Dau · intermittent · Dec 13, 2015 · N732KA · Boeing 737500 · Fuel Quantity Indicator
  > RIGHT WING FUEL QUANTITY INDICATOR INTERMITTENTLY DISPLAYED "0" WITH CODES 1, 2, 3, 5, 7, 10. IAW TROUBLESHOOTING WITH THE FAULT ISOLATION MANUAL, REPLACED THE RIGHT FUEL QUANTITY INDICATOR AND DIGITAL CALIBRATION TRIM UNIT ATTACHED TO THE INDICATOR. PERFORM
- [SDR COZA20151215070](https://openairdocs.org/sdr/COZA20151215070.md): Dau · failed · Dec 13, 2015 · N732KA · Boeing 737500* · Data Recorders (Flight/Maintenance)
  > DIGITAL FLIGHT DATA ACQUISITION UNIT CIRCUIT BREAKER POPPED AND WOULD NOT RESET. REPLACED DFDAU AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20151209069](https://openairdocs.org/sdr/COZA20151209069.md): Control Valve · loose · Dec 6, 2015 · N732KA · Boeing 737500* · APU Bleed Air System
  > FOUND PROPORTIONAL CONTROL VALVE BODY LOOSE. VALVE IS LOCATED ON LOWER SIDE OF THE APU. REPLACED VALVE AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20151209068](https://openairdocs.org/sdr/COZA20151209068.md): Liner · damaged · Dec 6, 2015 · N732KA · Boeing 737500* · APU Engine Fuel and Control
  > APU WOULD HANG AT 250-300 DEGREES FOR APPROXIMATELY 30 SECONDS DURING START AND THEN ACCELERATE. APU WAS MAKING CHUGGING EXHAUST NOISES WHEN RUNNING. SB GTCP85-49-7484 INCORPORATES A NEW FUEL CONTROL AND ATOMIZER/ LINER ASSEMBLY, PN 3604524-54 TO IMPROVE STA
- [SDR COZA20151209067](https://openairdocs.org/sdr/COZA20151209067.md): Fuel Control · malfunctioned · Dec 6, 2015 · N732KA · Boeing 737500* · APU Engine Fuel and Control
  > APU WOULD HANG AT 250-300 DEGREES FOR APPROXIMATELY 30 SECONDS DURING START AND THEN ACCELERATE. APU WAS MAKING CHUGGING EXHAUST NOISES WHEN RUNNING. SB GTCP85-49-7484 INCORPORATES A NEW FUEL CONTROL, PN 3617750-1 AND ATOMIZER/LINER ASSEMBLY TO IMPROVE START
- [SDR COZA20150716059](https://openairdocs.org/sdr/COZA20150716059.md): Electronic Unit · intermittent · Jul 14, 2015 · N732KA · Boeing 737500 · Audio Integrating System
  > OBSERVER SEAT HAND MIKE HAD NO AUDIO. REPLACED THE REMOTE ELECTRONICS UNIT. OPERATIONAL CHECKED NORMAL.
- [SDR COZA20150716058](https://openairdocs.org/sdr/COZA20150716058.md): Display · defective · Jul 14, 2015 · N732KA · Boeing 737500 · Central Display
  > LEFT ENG FUEL FLOW WAS INTERMITTENTLY DISPLAYED ON THE EIS PRIMARY DISPLAY. TROUBLESHOOTING OF THE FUEL FLOW TRANSMITTER & ASSOCIATED WIRING FOUND NO DEFECTS. THE EIS PRIMARY DISPLAY WAS REPLACED & FUEL FLOW INDICATION IS NORMAL.
- [SDR COZA20150716057](https://openairdocs.org/sdr/COZA20150716057.md): Indicator · failed · Jul 7, 2015 · N732KA · Boeing 737500 · Airspeed/Mach Indicator
  > VMU FLAG APPEARED ON CAPTAIN'S ASI & BARBER POLE DID NOT MATCH FIRST OFFICERS SIDE. REPLACED DEFECTIVE AIRSPEED INDICATOR. OPERATIONAL CHECKED NORMAL.
- [SDR COZA20150716056](https://openairdocs.org/sdr/COZA20150716056.md): Carbon Seal · leaking · Jul 7, 2015 · N732KA · Boeing 737500 · Turbine Engine Oil System
  > REPLACED CARBON SEALS FOR THE RT ENG HYD PUMP, CSD & MEC TO IMPROVE ENG OIL CONSUMPTION.
- [SDR CA130711011](https://openairdocs.org/sdr/CA130711011.md): Autoland Sys · erratic · Jun 27, 2013 · Boeing 737500 · Landing and Taxi Aids
  > (CAN) AIR NORTH IS HOLDER OF SSTC C-LSA12-033/D FOR THE INSTALLATION OF A SBAS LANDING SYSTEM. ALTHOUGH THE INSTALLATION OF THE SYS HAS BEEN ACCOMPLISHED ON THE FIRST OF 2 AIRPLANES ON THE FLEET IN FEB 2012, THE SYSTEM WAS NOT OPERATIONNALY APPROVED AND USED
- [SDR RCAA2012052900001](https://openairdocs.org/sdr/RCAA2012052900001.md): Wire Harness · chafed · Jun 29, 2012 · Boeing 737500 · Electrical Power System Wiring
  > CHAFED WIRE BUNDLE IN THE P5-4 OVERHEAD, BELOW MODULE AND ADJACENT TO THE APU START SWITCH, SHORTED.
- [SDR CA110517005](https://openairdocs.org/sdr/CA110517005.md): Windshield · broken · May 15, 2011 · Boeing 737500* · Flight Compartment Windows
  > IN CRUISE FLIGHT AT FL 360, THE CAPTAINS NR 1 WINDSCREEN, OUTER GLASS LAYER SHATTERED. THE CREW DIVERTED, A RESCUE AIRPLANE, WITH MX ON BOARD WAS SENT. MX INSPECTED THE DAMAGED WINDOW AND DETERMINED THE OUTER GLASS LAYER (NON-STRUCTURAL) WAS CRACKED AND THERE
- [SDR CA101007003](https://openairdocs.org/sdr/CA101007003.md): Bearing · fractured · Oct 5, 2010 · Boeing 737500 · Landing Gear Steering System
  > THE FLIGHT CREW REPORTED THAT THE ACFT WAS DIFFICULT TO CONTROL DURING TAXI. STEERING COLLAR BEARING (FIG 1), THE FWD HALF OF THE STEERING COLLAR BEARING ASSY, PN 69-61785-8 (ITEM 155, CMM 32-21-48) WAS FOUND FRACTURED AT THE UPPER FLANGE ANTI-ROTATION LUG.
- [SDR CALA0700517](https://openairdocs.org/sdr/CALA0700517.md): Cable · binding · Sep 14, 2007 · N15659 · Boeing 737500 · Landing Gear Retraction/Extension System
  > THE GEAR WOULD NOT RETRACT AFTER TAKEOFF FROM EWR. ABNORMAL PROCEDURES WERE FOLLOWED AND THE GEAR RETRACTED USING THE OVERRIDE TRIGGER, BUT STILL HAD PARTIAL ABNORMALITIES. THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND
- [SDR CALA0700516](https://openairdocs.org/sdr/CALA0700516.md): Unknown · malfunctioned · Sep 13, 2007 · N15659 · Boeing 737500 · Landing Gear Retraction/Extension System
  > AFTER T/O WHEN GEAR RETRACTED, A LOUD THUMP WAS HEARD AND SHUTTER WAS FELT. AFTER RETRACTION RT MAIN UNSAFE LIGHT ILLUMINATED. RECYCLED LANDING GEAR UP/DOWN AND STILL HAD A RED UNSAFE LIGHT W/GEAR UP POSITION. LOWERED LANDING GEAR, NO UNSAFE LIGHT. RETURNE
- [SDR CALA0700337](https://openairdocs.org/sdr/CALA0700337.md): Light · inoperative · Jul 7, 2007 · N14652 · Boeing 737500 · Emergency Lighting
  > EMERGENCY EXIT LIGHT AT SEAT 19C WAS INOP. REMOVED AND REPLACED EMERGENCY EXIT LIGHT AT SEAT 19C REF AMM 33-51-81. OPS CHECK GOOD.
- [SDR 2007F00017](https://openairdocs.org/sdr/2007F00017.md): Vane · cracked · Feb 1, 2007 · N927UW · Boeing 737500 · Turbine Section
  > NR 2 ENG WITH HIGH EGT, BEING INSPECTED DEFECTS WERE FOUND ON THE LPT, SEVERAL CRACKS ON 1 STAGE OF LPT. 3 BOROSCOPES WERE PERFORMED AND NO CORRECTIVE ACTION DONE.
- [SDR CA051007003](https://openairdocs.org/sdr/CA051007003.md): Bellcrank · corroded · Oct 4, 2005 · Boeing 737500* · Trailing Edge Flap Control System
  > (CAN) DURING A ROUTINE DAILY CHECK,IT WAS NOTED THAT THE LT OB T/E FLAP HAD EXCESSIVE PLAY WHEN HAND FORCE WAS APPLIED TO THE TRAILING EDGE FLAP. UPON FURTHER INVESTIGATION IT WAS DISCOVERED THAT THE CLEVIS BOLT AND THE BELLCRANK WERE WORN AND CORRODED. BELL
- [SDR DU4R0507137](https://openairdocs.org/sdr/DU4R0507137.md): Skin · dented · Jul 1, 2005 · N954UA · Boeing 737500 · Fuselage Main, Plate/Skin
  > FOUND DENT WITH OLD YELLOW DOTS 20 INCHES AFT OF DOOR 2L.
- [SDR CA050706001](https://openairdocs.org/sdr/CA050706001.md): Valve · seized · Jun 29, 2005 · Boeing 737500* · Cabin Pressure Control System
  > (CAN) DURING CLIMB, A/C WOULD NOT PRESSURIZE. SUSPECTING AN OPEN DOOR OR POSSIBLE DAMAGE, ELECTED TO RETURN. IAW AMM MX PERSONNEL INSPECTED A/C AND FOUND NO DEFECTS WITH PRESSURE VESSEL AND ALL DOORS CLOSED TIGHT WITH NO DAMAGED SEALS. T/S OF PRESS SYS REVE
- [SDR ASMF200506025](https://openairdocs.org/sdr/ASMF200506025.md): Trim System · malfunctioned · Jun 24, 2005 · N852AM · Boeing 737500* · Stabilizer Position Indicating
  > AIRCRAFT RETURNED TO PLATFORM, PSEU AND OVERHEAD LIGHTS TURNED ON IN UPPER PANEL. BITE TO PROXIMITY UNIT SWITCH WAS PERFORMED SHOWING STAB TRIM DISAGREE FAILURE CODE. STABILIZER WAS COMPLETELY DEPLOYED AND CONFIGURED AGAIN IN TAKEOFF MODE TURNING OFF THE LIG
- [SDR CA050415001](https://openairdocs.org/sdr/CA050415001.md): Starter · overheated · Apr 14, 2005 · Boeing 737500* · APU Start/Ignition System
  > (CAN) LOGBOOK SNAG STATED THAT THE APU WOULD NOT START. UPON INVESTIGATION IT WAS NOTED THAT THE APU STARTER HAD OVERHEATED AT BOTH TERMINAL CONNECTIONS. TERMINAL ENDS AND CABLE PROTECTION HEAT DAMAGED. NO INDICATION OF FIRE WARNING OCCURRED.
- [SDR USAA040931](https://openairdocs.org/sdr/USAA040931.md): Attach Angle · cracked · Oct 28, 2004 · N435US · Boeing 737500* · Fuselage Main, Attach Fittings
  > PIT - Q1 - ATTACH ANGLE,.5 INCH LONG CRACK, FRAME 706, STR S-11L. DEFECTIVE PART REPLACED WITH IDENT PART IAW SRM 51-40-02, 51-40-03.
- [SDR IU62002F00020](https://openairdocs.org/sdr/IU62002F00020.md): Housing · cracked · Jul 18, 2002 · Boeing 737500 · Drag Control Actuator
  > GROUND SPOILER ACTUATOR HOUSING CRACKED AT RETRACT PORT.
- [SDR IU62002F00019](https://openairdocs.org/sdr/IU62002F00019.md): Housing · cracked · Jul 18, 2002 · Boeing 737500 · Hydraulic System, Main
  > HOUSING CRACKED AT RETRACT PORT.
- [SDR IU62002F00011](https://openairdocs.org/sdr/IU62002F00011.md): Housing · cracked · May 30, 2002 · Boeing 737500 · Hydraulic System, Main
  > HOUSING IS CRACKED AT THE RETRACT PORT. PROBABLY CAUSED BY OVER PRESSURIZATION AND WEAKENED METAL. REPLACE WITH UPGRADED HOUSING ASSEMBLY. (OCN: 168497 / MECH. CB4)
- [SDR 20001218SH014](https://openairdocs.org/sdr/20001218SH014.md): Wheel · failed · Dec 4, 2000 · Boeing 737500 · Wheel/Ski/Float
  > INBOARD AND OUTBOARD WHEEL HALVES DAMAGED. INBOARD WHEEL HUB FAILURE. WHEEL SENT FOR ANALYSIS. DYE PENETRANT INSPECTION OF ALL WHEELS MFG PRIOR TO 1/1/94 NEXT SHOP VISIT. WHEEL MFG 12/31/93 OR LATER DPI TO TAKE PLACE NEXT OVERHAUL. (X)
- [SDR 20001031SH015](https://openairdocs.org/sdr/20001031SH015.md): Spar · cracked · Oct 31, 2000 · Boeing 737500 · Trailing Edge Flaps
  > 737300/737400/737500 WERE FOUND WITH A CRACK IN THE UPPER AFT SPAR T-CAP OF THE OUTBOARD MIDFLAP. CRACK IS LOCATED ON THE VERTICAL LEG OF THE SPAR NEAR THE EXHAUST GATE HINGE. EACH OF THE LAST FOUR 737 OTBD MIDFLAPS EVALUATED WERE CRACKED IN THE DESCRIBED LO
- [SDR CALA0000742](https://openairdocs.org/sdr/CALA0000742.md): Window · out of adj · May 25, 2000 · N27610 · Boeing 737500 · Flight Compartment Windows
  > THE R-2 SLIDING COCKPIT WINDOW REQUIRED EXCESS FORCE TO LATCH AND UNLATCH. THE R-2 SLIDING WINDOW WAS ADJUSTED IAW MM 56-12-11, PAGE 501-511.

## 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 aircraft_model_key = '737500'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-737-500/reports

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