# Service difficulty reports: Boeing 737-476

A list on [Boeing 737-476](https://openairdocs.org/model/boeing-737-476.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 5 · 223 reports

- [SDR EE4Y2019100409925](https://openairdocs.org/sdr/EE4Y2019100409925.md): Floorbeam · cracked · Oct 4, 2019 · N16AQ · Boeing 737476 · Fuselage Main, Floor Beam
  > UPPER FUSELAGE MAIN CARGO CABIN BS 727B, RBL 45.57 AFT END OF LONGITUDINAL FLOOR BEAM UPPER CHORD OUTBOARD FLANGE WITH CRACK. THE DAMAGE AREA WAS REPAIRED PER SERVICE BULLETIN PEMCO 737-57-0002.
- [SDR EE4Y2019100409923](https://openairdocs.org/sdr/EE4Y2019100409923.md): Skin · cracked · Oct 4, 2019 · N16AQ · Boeing 737476 · Fuselage Main, Plate/Skin
  > LOWER FUSELAGE SKIN DAMAGED AT BS 500B+5, BETWEEN STRINGERS 22L AND 23L. THE DAMAGED AREA WAS REPAIRED IAW INSTRUCTIONS ON EO PD37-53-3026.
- [SDR AU510002193](https://openairdocs.org/sdr/AU510002193.md): Stringer · cracked · Dec 12, 2005 · Boeing 737476 · Fuselage Main, Longeron/Stringer
  > FUSELAGE STRINGER SPLICE CRACKED. CRACK LENGTH APPROXIMATELY 5MM (0.200IN). UPON REMOVAL OF THE SPLICE THERE WAS EVIDENCE OF MULTI-SITE CRACKING ON OUTBOARD SURFACE OF SPLICE (TWO HOLES). FOUND DURING EDDY CURRENT INSPECTION OF FUSELAGE UPPER LOBE FASTENER H
- [SDR AU510002185](https://openairdocs.org/sdr/AU510002185.md): Valve · sticking · Dec 12, 2005 · Boeing 737476 · Fuel Transfer Valve
  > NR 2 ENGINE SPAR VALVE FAULTY.
- [SDR AU510002153](https://openairdocs.org/sdr/AU510002153.md): Iru · failed · Dec 12, 2005 · Boeing 737476 · Inertial Guidance System
  > LT INERTIAL REFERENCE UNIT (IRU) FAILED.
- [SDR AU510002152](https://openairdocs.org/sdr/AU510002152.md): Spring · failed · Dec 12, 2005 · Boeing 737476 · Elevator Control System
  > ELEVATOR FEEL SPRING BROKEN.
- [SDR AU510002105](https://openairdocs.org/sdr/AU510002105.md): Actuator · faulty · Dec 12, 2005 · Boeing 737476 · Landing Gear Retraction/Extension System
  > LT MAIN LANDING GEAR ACTUATOR FAULTY. LT MAIN LANDING GEAR NOT FULLY RETRACTED.
- [SDR AU510002104](https://openairdocs.org/sdr/AU510002104.md): Tire · debonded · Dec 12, 2005 · Boeing 737476 · Tire
  > NR 3 MAIN WHEEL TIRE TREAD DEBONDED.
- [SDR AU510002060](https://openairdocs.org/sdr/AU510002060.md): Shroud · failed · Dec 12, 2005 · Boeing 737476 · Turbine Section
  > (AUS) LT ENGINE FAILED TO START. INVESTIGATION FOUND ENGINE SEIZED AND A SMALL AMOUNT OF DEBRIS IN THE TAILPIPE. BOROSCOPE INSPECTION FOUND DAMAGE TO HIGH PRESSURE TURBINE (HPT). INVESTIGATION FOUND THE HPT SHOUD HAD FAILED AND LODGED BETWEEN THE HPT BLADES
- [SDR AU510002047](https://openairdocs.org/sdr/AU510002047.md): Adapter · faulty · Dec 12, 2005 · Boeing 737476 · Attitude and Direction Data System
  > RT INERTIAL REFERENCE SYSTEM (IRS) FAILED. CAUSED BY FAULTY RT DIGITAL ANALOGUE ADAPTER (DAA).
- [SDR AU510002038](https://openairdocs.org/sdr/AU510002038.md): Door · misrepaired · Dec 12, 2005 · Boeing 737476 · Accessory Compartment Doors
  > PAPER AND LINEN WASTE RECEPTACLE DOORS IN TOILETS NOT SEALING. INVESTIGATION FOUND LAV A (FWD) TO BE LATCHING SECURELY BUT NOT SEALING. INVESTIGATION REVEALED EXTRA STRIKER PLATE BONDED OVER EXISTING STRIKER PLATE CAUSING DOOR TO SIT OUT FURTHER THAN REQUIRE
- [SDR AU510002014](https://openairdocs.org/sdr/AU510002014.md): Iru · failed · Dec 12, 2005 · Boeing 737476 · Attitude Gyro and Indicating System
  > NR 1 INERTIAL REFERENCE UNIT (IRU) FAILED.
- [SDR AU510001933](https://openairdocs.org/sdr/AU510001933.md): Pump · failed · Dec 12, 2005 · Boeing 737476 · Hydraulic Pump (Electric/Engine), Main
  > HYDRAULIC SYSTEM `B` HYDRAULIC PUMP FAILED.
- [SDR AU510001921](https://openairdocs.org/sdr/AU510001921.md): Cabin Pressure · faulty · Dec 12, 2005 · Boeing 737476 · Cabin Pressure Control System
  > (AUS) AIRCRAFT PRESSURISED ON LANDING. NUMEROUS COMPONENTS CHANGED. INVESTIGATION CONTINUING. (CASA NR 510001921)
- [SDR AU510001913](https://openairdocs.org/sdr/AU510001913.md): Transmitter · faulty · Dec 12, 2005 · Boeing 737476 · Trailing Flap Position Indicating System
  > (AUS) LT FLAP POSITION TRANSMITTER FAULTY. (CASA NR 510001913)
- [SDR AU510001907](https://openairdocs.org/sdr/AU510001907.md): Indicator · faulty · Dec 12, 2005 · Boeing 737476 · Wing, Control Surfaces
  > (AUS) TRAILING EDGE FLAP ASSYMETRY. FLAPS RECYCLED AND OPERATED NORMALLY. INVESTIGATION CONTINUING. (CASA NR 510001907)
- [SDR AU510001772](https://openairdocs.org/sdr/AU510001772.md): Turbine Blades · damaged · Dec 12, 2005 · Boeing 737476 · Engine (Turbine/Turboprop)
  > (AUS) NR 1 ENGINE MAKING (POPPING) SOUNDS. SOUNDS INCREASED WHEN THRUST LEVER INCREASED AND DECREASED WHEN THRUST LEVER RETARDED. BORESCOPE INSPECTION FOUND HPC BLADES DAMAGED BEYOND LIMITS. INVESTIGATION CONTINUING. (CASA NR 510001772)
- [SDR AU510001687](https://openairdocs.org/sdr/AU510001687.md): Outflow Valve · failed · Dec 12, 2005 · Boeing 737476 · Pressure Regulator/Outflow Valve
  > PRESSURIZATION SYSTEM AFT OUTFLOW VALVE FAILED TO OPEN. INVESTIGATION FOUND A DEFECTIVE AC MOTOR AND AC POTENTIOMETER.
- [SDR AU510001672](https://openairdocs.org/sdr/AU510001672.md): Bearing · failed · Dec 12, 2005 · Boeing 737476 · Leading Edge Devices
  > LT WING OUTBOARD KRUGER FLAP NOSE LINK EYE END SHEARED.
- [SDR AU510001638](https://openairdocs.org/sdr/AU510001638.md): Flap System · sticking · Dec 12, 2005 · Boeing 737476 · Trailing Edge Flap Control System
  > (AUS) LT FLAP STOPPED. FLAP ASSYMETRY. INVESTIGATION CONTINUING. (CASA NR 510001638)
- [SDR AU510001606](https://openairdocs.org/sdr/AU510001606.md): Pump · faulty · Dec 12, 2005 · Boeing 737476 · Engine Fuel Pump
  > NR 2 ENGINE HAS A HISTORY OF STARTING DIFFICULTIES AND FLUCTUATING PARAMETERS. INVESTIGATION FOUND FUEL PUMP HAD NO FLOW AT LOW SPEED AND WAS WELL BELOW LIMIT OF FLOW AT HIGHER SPEED. THE PUMP GEARS WERE FOUND SCORED. THIS CAUSED DAMAGE TO THE BEARINGS AND TH
- [SDR AU510001524](https://openairdocs.org/sdr/AU510001524.md): Gcu · failed · Dec 12, 2005 · Boeing 737476 · AC Regulator
  > NR 1 GENERATOR CONTROL UNIT (GCU) FAILED.
- [SDR AU510001496](https://openairdocs.org/sdr/AU510001496.md): Sensor · faulty · Dec 12, 2005 · Boeing 737476 · Leading Edge Slat Position Indicating System
  > NR 3 LEADING EDGE FLAP RETRACTION SENSOR FAULTY.
- [SDR AU510002148](https://openairdocs.org/sdr/AU510002148.md): Panel · misinstalled · Dec 11, 2005 · Boeing 737476 · Vertical Stabilizer, Plate/Skin
  > VERTICAL STABILIZER RT LOWER PANEL INCORRECTLY FITTED BETWEEN FORWARD AND AFT ATTACHMENT POINTS.
- [SDR AU510001728](https://openairdocs.org/sdr/AU510001728.md): Slide · no test · Dec 8, 2005 · Boeing 737476 · Escape Slide
  > DOOR 1R ESCAPE SLIDE FAILED TO DEPLOY NORMALLY DURING TEST. SLIDE CONTACTED EDGE OF DOOR DURING OPENING CAUSING IT TO TWIST SIDEWAYS.
- [SDR AU510001727](https://openairdocs.org/sdr/AU510001727.md): Window · damaged · Dec 8, 2005 · Boeing 737476 · Flight Compartment Windows
  > CAPTAIN`S NR 1 WINDOW CRACKED DUE TO ARCING.
- [SDR AU510002184](https://openairdocs.org/sdr/AU510002184.md): Door Frame · cracked · Nov 11, 2005 · Boeing 737476 · Fuselage Main, Structure
  > FORWARD CARGO DOOR CUTOUT AFT FRAME WEB CRACKED. CRACK LENGTH APPROXIMATELY 17.78MM (0.700IN). FOUND DURING EDDY CURRENT INSPECTION IAW AD/737/242 AND BOEING SB 737-53A1228.
- [SDR AU510002177](https://openairdocs.org/sdr/AU510002177.md): Frame · cracked · Nov 11, 2005 · Boeing 737476 · Fuselage Main, Frame
  > FUSELAGE FRAMES (21OFF) CRACKED AT PASSENGER SERVICE UNIT (PSU) ATTACHMENT POINTS. FOUND DURING EDDY CURRENT INSPECTION IAW EI 737-53-68R3 AND NDT TECHNIQUES E-13 AND E-18.
- [SDR AU510001468](https://openairdocs.org/sdr/AU510001468.md): Actuator · failed · Nov 6, 2005 · Boeing 737476 · Stabilizer Actuator
  > (AUS) STABILISER ELECTRIC TRIM ACTUATOR FAILED. CAUSED BY WORN AND STICKING CLUTCH. (OTHER CAUSE: STICKING CLUTCH PLATES) (CASA# 510001468)
- [SDR AU510001457](https://openairdocs.org/sdr/AU510001457.md): Servo · failed · Oct 6, 2005 · Boeing 737476 · Autopilot Trim Servo
  > (AUS) AUTOPILOT STABILISER TRIM SERVO FAILED. WORKSHOP INVESTIGATION FOUND ROTOR GEAR STRIPPED AND ROTOR BEARING JOURNAL WORN. (OTHER CAUSE: AGE) (CASA# 510001457)
- [SDR AU510001584](https://openairdocs.org/sdr/AU510001584.md): Wire · burned · Aug 7, 2005 · Boeing 737476 · Electrical Power System Wiring
  > (AUS) WIRE LOCATED ON THE BACK OF PLUG D4001P LOCATED BEHIND THE E I RACK BURNED DUE TO CONTACT WITH TRAY DISCONNECT BRACKET. (OTHER CAUSE: MATERIAL) (CASA NR 510001584)
- [SDR AU510002009](https://openairdocs.org/sdr/AU510002009.md): Symbol Generator · failed · Jun 10, 2005 · Boeing 737476 · Attitude and Direction Data System
  > CAPTAIN`S SYMBOL GENERATOR FAILED.
- [SDR AU510001934](https://openairdocs.org/sdr/AU510001934.md): Frame · cracked · May 9, 2005 · Boeing 737476 · Fuselage Main, Frame
  > FUSELAGE FRAMES CONTAINED 28 CRACKS AT PASSENGER SERVICE UNIT (PSU) ATTACHMENT POINTS. FOUND DURING EDDY CURRENT INSPECTION IAW EI 737-53-68R3 AND B737 NTM PT6 51-00-00 FIG 4 AND FIG 16.
- [SDR AU510001571](https://openairdocs.org/sdr/AU510001571.md): Slide · faulty · May 7, 2005 · Boeing 737476 · Escape Slide
  > DOOR L1 ESCAPE SLIDE PRESSURE OUTSIDE OF OPERATING RANGE.
- [SDR AU510001552](https://openairdocs.org/sdr/AU510001552.md): Coupler · faulty · Mar 7, 2005 · Boeing 737476 · Communications System Wiring
  > NR 2 HF SYSTEM FAILED. NEW TRANSMITTER FITTED BUT PROBLEM REMAINED. SUSPECT FAULTY COUPLER.
- [SDR AU510001547](https://openairdocs.org/sdr/AU510001547.md): Actuator · failed · Jan 7, 2005 · Boeing 737476 · Speed-Attitude Correction System
  > AUTOPILOT STABILIZER TRIM ACTUATOR FAILED DUE TO STRIPPED ROTOR GEAR AND WORN ROTOR BEARING JOURNAL.
- [SDR AUS20040500](https://openairdocs.org/sdr/AUS20040500.md): Oven · faulty · Jun 6, 2004 · Boeing 737476 · Buffet/Galleys
  > (AUS) FORWARD GALLEY OVEN FAILED. FIRE EXTINGUISHED DISCHARGED INTO OVEN.
- [SDR AUS20040493](https://openairdocs.org/sdr/AUS20040493.md): Window · cracked · Jun 6, 2004 · Boeing 737476 · Flight Compartment Windows
  > (AUS) CAPTAIN'S NR 2 SLIDING WINDOW OUTER PANE CRACKED IN UPPER FORWARD CORNER.
- [SDR AUS20040487](https://openairdocs.org/sdr/AUS20040487.md): Bearing · faulty · Jun 3, 2004 · Boeing 737476 · Control Column Section
  > (AUS) FIRST OFFICER'S CONTROL WHEEL BEARING NOTCHY.
- [SDR AUS20040479](https://openairdocs.org/sdr/AUS20040479.md): Light · faulty · May 23, 2004 · Boeing 737476 · Landing Gear Position and Warning
  > (AUS) RT MAIN LANDING GEAR DOWN LIGHT FAILED TO ILLUMINATE ON GEAR SELECTION. INVESTIGATION FOUND A FAULTY LOCK MECHANISM IN THE LAMP LENS CAP.
- [SDR AUS20040427](https://openairdocs.org/sdr/AUS20040427.md): Panel · faulty · May 20, 2004 · Boeing 737476 · Landing Gear Position and Warning
  > (AUS) LANDING GEAR POSITION PANEL FAULTY.
- [SDR AUS20040394](https://openairdocs.org/sdr/AUS20040394.md): Spar · cracked · May 6, 2004 · Boeing 737476 · Horizontal Stabilizer, Spar/Rib
  > (AUS) HORIZONTAL STABILIZER REAR SPAR SUSPECT CRACKED. EDDY CURRENT INSPECTION CONFIRMED THE FOLLOWING CRACKS. STABILIZER REAR SPAR RT FORWARD FACE OF TOP WEB ASSEMBLY. CRACK INDICATION CONFIRMED. CRACK LENGTH 10.16MM (0.400IN)OUT OF FASTENER HOLE. HORIZO
- [SDR AUS20040367](https://openairdocs.org/sdr/AUS20040367.md): Slide · failed · May 3, 2004 · Boeing 737476 · Escape Slide
  > (AUS) DOOR 2L ESCAPE SLIDE LIGHTS FAILED TO ILLUMINATE FOLLOWING SLIDED EMPLOYMENT. SUSPECT FLAT BATTERY.
- [SDR AUS20040387](https://openairdocs.org/sdr/AUS20040387.md): Control Column · binding · Apr 29, 2004 · Boeing 737476 · Control Column Section
  > (AUS) FIRST OFFICER'S CONTROL COLUMN ELL FITTING CHAFING ON TRANSFER MECHANISM FORK. TRANSFER MECHANISM WAS FOUND TO HAVE A PRESERVICE BULLETIN FORK FITTED INSTEAD OF A POST SERVICE BULLETIN FORK.
- [SDR AUS20040290](https://openairdocs.org/sdr/AUS20040290.md): Spindle · fractured · Apr 16, 2004 · Boeing 737476 · Trailing Edge Flaps
  > (AUS) RT OB MID FLAP CARRIAGE SPINDLE SUSPECT CRACKED. FOUND DURING ULTRASONIC INSPECTION IAW EI 737-57-72R2.
- [SDR AUS20040456](https://openairdocs.org/sdr/AUS20040456.md): Indicator · faulty · Apr 12, 2004 · Boeing 737476 · Trailing Flap Position Indicating System
  > (AUS) FLAP POSITION INDICATOR FAULTY.
- [SDR AUS20040283](https://openairdocs.org/sdr/AUS20040283.md): Flap · faulty · Apr 2, 2004 · Boeing 737476 · Trailing Edge Flap Control System
  > (AUS) AIRCRAFT HAD AN ASSYMETRIC FLAP INDICATION DURING SELECTION. THE AIRCRAFT HAS HAD A TOTAL OF FOUR SIMILAR OCCURRENCES DURING A TWO WEEK PERIOD. INVESTIGATION IS CONTINUING.
- [SDR AUS20040230](https://openairdocs.org/sdr/AUS20040230.md): Valve · sticking · Mar 24, 2004 · Boeing 737476 · Fuel Selector/Shut-Off Valve
  > (AUS) NR 1 ENGINE FUEL SHUTOFF VALVE STICKING.
- [SDR AUS20040199](https://openairdocs.org/sdr/AUS20040199.md): Panel · faulty · Mar 19, 2004 · Boeing 737476 · Flight Controller
  > (AUS) AUTOPILOT MODE CONTROL PANEL FAULTY.
- [SDR AUS20040184](https://openairdocs.org/sdr/AUS20040184.md): Frame · cracked · Mar 9, 2004 · Boeing 737476 · Fuselage Main, Frame
  > (AUS) FUSELAGE FRAME LOCATED AT BS 663.75 STRINGER 3R-3L CRACKED AT S1AND S2R FASTENER HOLES. FOUND DURING EDDY CURRENT INSPECTION.

Next page: https://openairdocs.org/model/boeing-737-476/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 aircraft_model_key = '737476'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-737-476/reports

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