# Service difficulty reports: N421TE, cancelled Jan 21, 2005

A list on [N421TE, cancelled Jan 21, 2005](https://openairdocs.org/deregistered/N421TE-2005-01-21.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 2 · 91 reports

- [SDR RAIA00307187](https://openairdocs.org/sdr/RAIA00307187.md): Transceiver · will not test · Jul 8, 2003 · N421TE · Aerosp ATR42300 · Weather Radar System
  > 5635-MLI- WEATHER RADAR WILL NOT TEST. MAINTENANCE REMOVED AND REPLACED WEATHER RADAR RECEIVER TRANSMITTER.
- [SDR RAIA00307183](https://openairdocs.org/sdr/RAIA00307183.md): Adc · faulty · Jul 6, 2003 · N421TE · Aerosp ATR42300 · Air Data Computer
  > 5500-STL- F/O'S ALTIMETER SHOWS OFF FLAG AT 5000 FT. MAINTENANCE REMOVED AND REPLACED AIR DATA COMPUTER.
- [SDR RAIA00305135](https://openairdocs.org/sdr/RAIA00305135.md): Wire · broken · May 7, 2003 · N421TE · Aerosp ATR42300 · Light System Wiring
  > 5621-STL- EMERGENCY LIGHT OUT ON STAIRS. REPAIRED BROKEN WIRE AT STAIR EMERGENCY LIGHT.
- [SDR RAIA00304123](https://openairdocs.org/sdr/RAIA00304123.md): Wire · broken · Apr 27, 2003 · N421TE · Aerosp ATR42300 · Light System Wiring
  > EMERGENCY EXIT LIGHT ON STAIRS INOPERATIVE. REPAIRED BROKEN WIRE, OPS CK OK.
- [SDR RAIA00304114](https://openairdocs.org/sdr/RAIA00304114.md): Wire · broken · Apr 15, 2003 · N421TE · Aerosp ATR42300 · Emergency Lighting
  > EMERGENCY EXIT LIGHT OUT AT BOTTOM OF PAX STAIRS. REPAIRED BROKEN WIRE AT TOP STEP. OPS CHECK GOOD.
- [SDR RAIA00302059](https://openairdocs.org/sdr/RAIA00302059.md): Axle · broken · Feb 27, 2003 · N421TE · Aerosp ATR42300 · Nose/Tail Landing Gear Strut/Axle
  > 5555- SBN- RIGHT HAND WHEEL ON NOSE LANDING GEAR WAS DISCOVERED MISSING DURING TAXI FOR PARKING AT STL. THE NLG AXLE BROKE, MAINTENANCE REMOVED AND REPLACED THE NLG AXLE AND INSTALLED NLG WHEEL AND TIRES.
- [SDR RAIA00302040](https://openairdocs.org/sdr/RAIA00302040.md): Engine · leaking · Feb 5, 2003 · N421TE · Aerosp ATR42300 · Engine (Turbine/Turboprop)
  > 5548-STL- SMOKE HASE IN CABIN AND COCKPIT. MAINTENANCE REMOVED AND REPLACED THE #2 ENGINE.
- [SDR RAIA00212362](https://openairdocs.org/sdr/RAIA00212362.md): Display · malfunctioned · Dec 22, 2002 · N421TE · Aerosp ATR42300 · Central Display
  > 5460-STL- THE "T/O INHI" LIGHT FAILS TO STAY ILLUMINATED BEFORE TAKE-OFF. MAINTENANCE REMOVED AND REPLACED THE CENTRAL CREW ALERT SYSTEM DISPLAY, OPS CK OK.
- [SDR RAIA00210286](https://openairdocs.org/sdr/RAIA00210286.md): Brush Block · inoperative · Oct 17, 2002 · N421TE · Aerosp ATR42300 · Propeller/Rotor Anti-Ice/De-Ice System
  > 5596-STL-LEFT PROP HEAT FAILED. MAINTENANCE REMOVED AND REPLACED #1 PROPELLER BRUSH BLOCK, OPS CK OK.
- [SDR RAIA00210258](https://openairdocs.org/sdr/RAIA00210258.md): O-Ring · damaged · Sep 1, 2002 · N421TE · Aerosp ATR42300 · Engine Oil Pressure
  > OIL PRESSURE LOW NR 2 ENGINE. MAINTENANCE REMOVED AND REPLACED OIL CAP O-RING, OPS AND LEAK CHECK OK.
- [SDR RAIA00207216](https://openairdocs.org/sdr/RAIA00207216.md): Wire · broken · Jul 15, 2002 · N421TE · Aerosp ATR42300 · Light System Wiring
  > STL- EMERGENCY LIGHT ON STAIRS IS OUT. MAINTENANCE REPAIRED BROKEN WIRE ON PAX DOOR EMERGENCY LIGHT.
- [SDR RAIA00202084](https://openairdocs.org/sdr/RAIA00202084.md): Stall Warning · inoperative · Feb 26, 2002 · N421TE · Aerosp ATR42300 · Drag Control System
  > 5589-STL- DURING TAXI, ALPHA PROBE POPPED CIRCUIT BREAKER. MAINTENANCE REMOVED AND REPLACED THE ALPHA PROBE, OPS CK OK.
- [SDR RAIA00108006](https://openairdocs.org/sdr/RAIA00108006.md): Display · failed · Aug 8, 2001 · N421TE · Aerosp ATR42300 · Central Display
  > PIA-7121-ELECTRICAL SMOKE COMING FROM INSTRUMNET PANEL, AIRCRAFT ON GROUND AT GATE. MAINTENANCE INSPECTED AND FOUND INSTRUMENT PANEL ADU (DISPLAY UNIT) CAUSING ELECTRICAL SMOKE. MAINTENANCE REPLACED THE ADU.
- [SDR RAIA00201016](https://openairdocs.org/sdr/RAIA00201016.md): Wire · broken · Jan 11, 2001 · N421TE · Aerosp ATR42300 · Light System Wiring
  > MX-STL- CABIN DOOR EMERGENCY EXIT LIGHT INOPERATIVE. REPAIRED BROKEN WIRE ON EMERGENCY EXIT LIGHT. OPS CHECK OK.
- [SDR RAIA0101002](https://openairdocs.org/sdr/RAIA0101002.md): Spring · damaged · Jan 2, 2001 · N421TE · Aerosp ATR42300 · Landing Gear Brake System
  > 7330-STL-LEFT HAND BRAKE GRABS FULL LOCKED WHEN PEDAL IS BARELY PUSHED IN WITH HYDRAULICS OFF. THE LEFT PEDAL GOES DOWN VERY EASILY AS IF NO SPRING TENSION. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS LEFT HAND PEDAL ARTIFITIAL FEEL SPRING IAW ATR42 MAINTENA
- [SDR RAIA0012061](https://openairdocs.org/sdr/RAIA0012061.md): Spring · failed · Jan 2, 2001 · N421TE · Aerosp ATR42300 · Landing Gear Brake System
  > 7330-STL-LEFT HAND BRAKE GRABS FULL LOCKED WHEN PEDAL IS BARELY PUSHED IN WITH HYDRAULICS OFF. THE LEFT PEDAL GOES DOWN VERY EASILY AS IF NO SPRING TENSION. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS LEFT HAND PEDAL ARTIFITIAL FEEL SPRING IAW ATR42 MAINTENA
- [SDR RAIA0011011](https://openairdocs.org/sdr/RAIA0011011.md): Transducer · failed · Nov 27, 2000 · N421TE · Aerosp ATR42300 · Engine Oil Pressure
  > 7136-STL -ON TAKEOFF ROLL RIGHT ENGINE OIL PRESSURE WAS BETWEEN 85 AND 90 PSI AND FLUCTUATING. MAINTENANCE INSPECTED AND REPLACED RIGHT ENGINE OIL PRESSURE TRANSDUCER.
- [SDR RAIA0010004](https://openairdocs.org/sdr/RAIA0010004.md): Actuator · failed · Oct 7, 2000 · N421TE · Aerosp ATR42300 · Elevator Tab Control System
  > 7177-MSN- CREW LOST PRIMARY AND SECONDARY PITCH TRIM CONTROL. DECLARED EMERGENCY ON FINAL APPROACH INTO STL. MAINTENANCE INSPECTED AND REPLACED PITCH TRIM ACTUATOR.
- [SDR RAIA0008015](https://openairdocs.org/sdr/RAIA0008015.md): Generator · failed · Aug 28, 2000 · N421TE · Aerosp ATR42300 · AC Generator-Alternator
  > 7316-STL- LEFT ACW GENERATOR FAULTED DURING TAXI, WOULD NOT RESET. MAINTENANCE INSPECTED AND REPLACED LEFT ACW GENERATOR.
- [SDR RAIA0008002](https://openairdocs.org/sdr/RAIA0008002.md): Switch · failed · Aug 7, 2000 · N421TE · Aerosp ATR42300 · Attitude and Direction Data System
  > 7282-STL- CAPTAINS ATTITUDE AND HEADING WOULD NOT RESET. MAINTENANCE INSPECTED AND REPLACED AHRS REVERSIONARY SWITCH.
- [SDR RAIA0007017](https://openairdocs.org/sdr/RAIA0007017.md): Switch · failed · Jul 23, 2000 · N421TE · Aerosp ATR42300 · Aileron Tab Control System
  > 7495-SBN- CREW REPORTS AILERON TRIM WOULD NOT TRIM RIGHT WING DOWN IN FLIGHT. AIRCRAFT DIVERTED TO CMI. MAINTENANCE INSPECTED AND REPLACED COCKPIT AILERON TRIM SWITCH.
- [SDR RAIA0006020](https://openairdocs.org/sdr/RAIA0006020.md): Solenoid Valve · failed · Jun 23, 2000 · N421TE · Aerosp ATR42300 · Propeller Feathering/Reversing
  > 7323-BMI- LEFT AUTO FEATHER FAILS TO TEST ON MORNING ENGINE CHECK. MAINTENANCE INSPECTED AND REPLACED LEFT AUTO FEATHER SOLENOID VALVE.
- [SDR RAIA0006015](https://openairdocs.org/sdr/RAIA0006015.md): Gauge · failed · Jun 15, 2000 · N421TE · Aerosp ATR42300 · Engine EGT/TIT Indicating System
  > 7330-STL- CCAS WARNING ILLUMINATED FOR RIGHT ENGINE. MAINTENANCE INSPECTED AND DEFERRED PER MEL. MAINTENANCE REPLACED RIGHT ENGINE ITT GAUGE.
- [SDR RAIA0006014](https://openairdocs.org/sdr/RAIA0006014.md): Relay · failed · Jun 13, 2000 · N421TE · Aerosp ATR42300 · Central Warning
  > 7260-STL- ENGINE LIGHT ON CCAS ILLUMINATED DURING TAXI. MAINTENANCE DEFERRED INDICATION PER MEL. MAINTENANCE INSPECTED AND REPLACED CCAS RELAY.
- [SDR RAIA0005031](https://openairdocs.org/sdr/RAIA0005031.md): Resistor · failed · May 24, 2000 · N421TE · Aerosp ATR42300 · Engine EGT/TIT Indicating System
  > 7176-STL- LEFT ENGINE OVERTEMP DURING TAKEOFF ROLL. MAINTENANCE INSPECTED OVERTEMP FALLS WITHIN MAINTENANCE MANUAL LIMITS, MAINTENANCE REPLACED LEFT ENGINE T6 TRIM RESISTOR.
- [SDR RAIA0001004](https://openairdocs.org/sdr/RAIA0001004.md): Generator · failed · Jan 9, 2000 · N421TE · Aerosp ATR42300 · DC Generator-Alternator
  > 7108 - STL - RIGHT GENERATOR FAULTED 5 TO 7 MINUTES INTO FLIGHT. MAINTENANCE REPLACED RIGHT ENGINE STARTER GENERATOR.
- [SDR RAIA0001001](https://openairdocs.org/sdr/RAIA0001001.md): Generator · failed · Jan 3, 2000 · N421TE · Aerosp ATR42300 · AC Generation System
  > FLT 7182 - STL - RIGHT ENGINE DC GENERATOR FAILED IN FLIGHT. MAINTENANCE REPLACED RIGHT ENGINE DC GENERATOR. (M)
- [SDR RAIA9910005](https://openairdocs.org/sdr/RAIA9910005.md): Gcu · failed · Oct 2, 1999 · N421TE · Aerosp ATR42300 · AC Regulator
  > 7140 - ST L- NR 2 GENERATOR INOP. MAINTENANCE REPLACED NR 2 GENERATOR AND GCU.
- [SDR RAIA9910004](https://openairdocs.org/sdr/RAIA9910004.md): Generator · failed · Oct 2, 1999 · N421TE · Aerosp ATR42300 · AC Generator-Alternator
  > 7140 - STL - NR 2 GENERATOR INOP. MAINTENANCE REPLACED NR 2 GENERATOR AND GCU.
- [SDR RAIA990901](https://openairdocs.org/sdr/RAIA990901.md): Engine · failed · Sep 2, 1999 · N421TE · Aerosp ATR42300 · Engine (Turbine/Turboprop)
  > FLT 7109 - NR 2 ENGINE TEMPS OUT BEFORE REACHING TARGET TORQUE. MAINTENANCE REPLACED NR 2 ENGINE. (M)
- [SDR RAIA990638](https://openairdocs.org/sdr/RAIA990638.md): Fan · failed · Jun 27, 1999 · N421TE · Aerosp ATR42300 · Air Distribution Fan
  > FLT 7116 - STL - LEFT PACK FAULTED ON TAXI WOULD NOT RESET. MANUAL DID NOT MAKE A DIFFERENCE. DUCT TEMP AT 50 DEGREE. MAINTENANCE REPLACED GROUND COOLING FAN AND TURBINE. (M)
- [SDR RAIA990616](https://openairdocs.org/sdr/RAIA990616.md): O-Ring · failed · Jun 10, 1999 · N421TE · Aerosp ATR42300 · Pneumatic Distribution System
  > STL - FLT 7166 - LEFT ENGINE BLEED LEAK. MAINTENANCE REPLACED AN O-RING FOR LEFT SHUT-OFF VALVE. (X)
- [SDR RAIA990538](https://openairdocs.org/sdr/RAIA990538.md): Gasket · failed · May 26, 1999 · N421TE · Aerosp ATR42300 · Compressor Bleed Control
  > FLT 7404 - STL - RIGHT ENGINE ITT ERRATIC. MAINTENANCE REPLACED HP BLEED GASKET ON RIGHT ENGINE. (M)
- [SDR RAIA990537](https://openairdocs.org/sdr/RAIA990537.md): Duct · failed · May 26, 1999 · N421TE · Aerosp ATR42300 · Turbine Engine Bypass Section
  > FLT 7404 - STL - LEFT ENGINE ITT ERRATIC. MAINTENANCE REPLACED H/P PORT DUCT ASSEMBLY ON LEFT ENGINE. (M)
- [SDR RAIA990519](https://openairdocs.org/sdr/RAIA990519.md): Handle · failed · May 15, 1999 · N421TE · Aerosp ATR42300 · Landing Gear Brake System
  > FLT 7156 - STL - EMERGENCY/PARKING BRAKE HANDLE BROKE OFF. MAINTENANCE REPLACED EMERGENCY PARK BRAKE HANDLE. (M)
- [SDR RAIA981109](https://openairdocs.org/sdr/RAIA981109.md): Pitch Control · failed · Nov 7, 1998 · N421TE · Aerosp ATR42300 · Propeller Controlling System
  > FLT 7154 - STL - RIGHT ENGINE TORQUE FLUCTUATING IN FLIGHT. MAINTENANCE REPLACED PITCH CONTROL UNIT ON RIGHT ENGINE. (M)
- [SDR RAIA980504](https://openairdocs.org/sdr/RAIA980504.md): Ahrs Computer · failed · May 11, 1998 · N421TE · Aerosp ATR42300 · Integrated Flight System
  > FLT 7134 - STL - EFIS HEADING COMPARATOR CAPTION ILLUMINATED DURING TAKEOFF. MAINTENANCE REPLACED LEFT AHRS COMPUTER. (M)
- [SDR RAIA980233](https://openairdocs.org/sdr/RAIA980233.md): Angle · corroded · Feb 26, 1998 · N421TE · Aerosp ATR42300 · Fuselage Miscellaneous Structure
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 20, BETWEEN STRINGERS 21L AND 21R. MAINTENANCE REPAIRED FRAME 20 FAIL/SAFE ANGLE BETWEEN STRINGERS 21L AND 21R PER ATR SRM. (M)
- [SDR RAIA980232](https://openairdocs.org/sdr/RAIA980232.md): Plate · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Passenger/Crew Doors
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION ON PASSENGER DOOR SPRING ATTACH PLATE. MAINTENANCE REPLACED PASSENGER DOOR SPRING ATTACH PLATE PER ATR SRM. (M)
- [SDR RAIA980231](https://openairdocs.org/sdr/RAIA980231.md): Clip · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Miscellaneous Structure
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 39 FOOTINGS, BETWEEN STRINGERS 20L AND 19L, 18L AND 17L. MAINTENANCE REPAIRED FLOOR FRAME 39 FOOTINGS BETWEEN STRINGERS 20L AND 19L, 18L AND 17L PER ATR SRM. (M)
- [SDR RAIA980229](https://openairdocs.org/sdr/RAIA980229.md): Floorbeam · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Main, Floor Beam
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FLOOR BEAM 39. MAINTENANCE REPAIRED FLOORBEAM 39 PER ATR SRM. (M)
- [SDR RAIA980228](https://openairdocs.org/sdr/RAIA980228.md): Seat Track · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage, Seat/Cargo Attach Fittings
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FLIGHT ATTENDANT LEFT SEAT TRACK. MAINTENANCE REPLACED FLIGHT ATTENDANT LEFT SEAT TRACK PER ATR SRM. (M)
- [SDR RAIA980227](https://openairdocs.org/sdr/RAIA980227.md): Seat Track · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage, Seat/Cargo Attach Fittings
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 36 SEAT TRACK. MAINTENANCE REPLACED SEAT TRACK AT FRAME 36 PER ATR SRM. (M)
- [SDR RAIA980226](https://openairdocs.org/sdr/RAIA980226.md): Floorbeam · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Main, Floor Beam
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FLOORBEAM 36. MAINTENANCE REPLACED FLOORBEAM 36 PER ATR SRM. (M)
- [SDR RAIA980225](https://openairdocs.org/sdr/RAIA980225.md): Clip · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Miscellaneous Structure
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 36 FOOTINGS, BETWEEN STRINGERS 16L AND 21R. MAINTENANCE REPAIRED FRAME 36 FOOTINGS BETWEEN STRINGERS 16L AND 21R PER ATR SRM. (M)
- [SDR RAIA980224](https://openairdocs.org/sdr/RAIA980224.md): Seat Track · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage, Seat/Cargo Attach Fittings
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSIN AT RIGHT INBOARD SEAT TRACK, BETWEEN FRAMES 30 AND 34. MAINTENANCE REPAIRED SEAT TRACK BETWEEN FRAMES 30 AND 34 PR ATR SRM. (M)
- [SDR RAIA980223](https://openairdocs.org/sdr/RAIA980223.md): Clip · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Miscellaneous Structure
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 34 FOOTINGS BETWEEN STRINGERS 19L AND 21R. MAINTENANCE REPLACED FLOOR FRAME 34 FOOTINGS BETWEEN STRINGERS 19L AND 21R PER ATR SRM. (M)
- [SDR RAIA980222](https://openairdocs.org/sdr/RAIA980222.md): Clip · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Miscellaneous Structure
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 32 FOOTINGS, BETWEEN STRINGERS 17L AND 21L. MAINTENANCE REPLACED FLOOR FRAME 32 FOOTINGS BETWEEN STRINGERS 17L AND 21L PER ATR SRM. (M)
- [SDR RAIA980221](https://openairdocs.org/sdr/RAIA980221.md): Frame · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Main, Frame
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FRAME 32 BETWEEN STRINGERS 21L AND 21R. MAINTENANCE REPAIRED FLOOR FRAME 32 PER ATR SRM. (M)
- [SDR RAIA800230](https://openairdocs.org/sdr/RAIA800230.md): Frame · corroded · Feb 25, 1998 · N421TE · Aerosp ATR42300 · Fuselage Main, Floor Beam
  > STL - DURING MAINTENANCE CHECK, FOUND CORROSION AT FLOORBEAM 39 FRAME 39 RT SIDE. MAINTENANCE REPAIRED FLOOR FRAME 39 RIGHT SIDE PER ATR SRM. (M)

Next page: https://openairdocs.org/deregistered/N421TE-2005-01-21/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 n_number = 'N421TE' AND deregistration_id = 'N421TE-2005-01-21'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N421TE-2005-01-21/reports

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