# Service difficulty reports: N231LN, cancelled Sep 6, 2019

A list on [N231LN, cancelled Sep 6, 2019](https://openairdocs.org/deregistered/N231LN-2019-09-06.md).

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

- [SDR SIMA200126102](https://openairdocs.org/sdr/SIMA200126102.md): Sign · broken · Sep 18, 2001 · N231LN · Saab 340B · Emergency Lighting
  > FLT 5002 - BOS - FOUND EMERGENCY EXIT SIGN ABOVE SEAT 8A BROKEN. MAINTENANCE REMOVED AND REPLACED EXIT SIGN OVER SEAT 8A. OPS CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)
- [SDR SIMA20011072](https://openairdocs.org/sdr/SIMA20011072.md): Bearing · worn · Apr 17, 2001 · N231LN · Saab 340B · Propeller Blade Section
  > DFW - CREW REPORTED A SEVERE VIBRATION FROM THE LEFT PROPELLER AT ALL POWER SETTINGS AND PROPELLER SPEEDS. MAINTENANCE FOUND THE NR 4 BLADE IN THE LEFT PROPELLER WITH AN EXTREMELY WORN BLADE PITCH CHANGE BEARING AND PIN. PROPELLER BLADE WAS REMOVED AND REPLA
- [SDR SIMA20011051](https://openairdocs.org/sdr/SIMA20011051.md): Engine · overtemp · Apr 15, 2001 · N231LN · Saab 340B · Engine (Turbine/Turboprop)
  > DCA - FLT 5059 - DURING GO AROUND, RIGHT OVERTEMP LIGHT CAME ON FOR LESS THAN 1 SECOND. RETARDED POWER LEVER AND LIGHT WENT OUT OUTSIDE AIR TEMP 19 MODERATE RAIN. MAINTENANCE REMOVED AND REPLACED RIGHT ENGINE ASSEMBLY IAW AE WORK CARD 4903. OPS AND LEAK CHE
- [SDR SIMA3576](https://openairdocs.org/sdr/SIMA3576.md): Fuse · corroded · Dec 22, 2000 · N231LN · Saab 340B · Emergency Lighting
  > CLL - FLT 3924 - EMERGENCY LIGHTS INOPERATIVE. FOUND CORROSION ON 23LN EMERGENCY BATTERY POWER SUPPLY FUSES. CLEAN FUSE SOCKETS, RAI ALL 4 FUSES. OPERATION CHECK OF FLIGHTS (CABIN) GOOD. PERFORMED IAW AMM. (M)
- [SDR SIMA1241](https://openairdocs.org/sdr/SIMA1241.md): Fuse · failed · May 3, 2000 · N231LN · Saab 340B · Emergency Lighting
  > LAX - FLT 3112 - EMERGENCY LIGHTS OVER ROW 14 INOPERATIVE. DEFERRED PER MEL 33-5-13, NR 050036 CAT C. FOUND FUSELAGE 82LN BLOWN, REMOVED AND REPLACED IT. OPS CHECK GOOD IAW AMM 33-50-00, MEL RESTORED. (M)
- [SDR SIMA0792](https://openairdocs.org/sdr/SIMA0792.md): Bulb · inoperative · Mar 19, 2000 · N231LN · Saab 340B · Emergency Lighting
  > DFW - FLT 3342 - FOUND EMERGENCY FLOOR LIGHTING AT ROW 14 INOPERATIVE. REMOVED AND REPLACED BULB. OPS CHECK GOOD. (M)
- [SDR SIMA0412](https://openairdocs.org/sdr/SIMA0412.md): Bulb · failed · Feb 10, 2000 · N231LN · Saab 340B · Emergency Lighting
  > DFW - FLT 3935 - EMERGENCY LIGHTS INOPERATIVE AT SEAT 12C. REMOVED AND REPLACED BULB AT SEAT 12C. OPS CHECK GOOD. (M)
- [SDR SIMA992751](https://openairdocs.org/sdr/SIMA992751.md): Bulb · failed · Oct 2, 1999 · N231LN · Saab 340B · Emergency Lighting
  > DFW - FLT 3906 - EMERGENCY FLOOR PROXIMITY LIGHT AT ROW 8A DOES NOT ILLUMINATE. REMOVED AND REPLACED BULB. OPERATIONAL CHECK GOOD. (M)
- [SDR SIMA983561](https://openairdocs.org/sdr/SIMA983561.md): Pdu · failed · Dec 22, 1998 · N231LN · Saab 340B · Landing Gear Retraction/Extension System
  > WHEN LANDING GEAR RETRACTED, THREE GREEN AND UNSAFE LIGHTS ALL ILLUMINATED. CYCLED LANDING GEAR, GREEN LIGHTS WENT OUT BUT THE UNSAFE LIGHT REMAINED ON. REMOVED AND REPLACED RIGHT POWER DISTRIBUTION UNIT. PERFORMED GEAR RETRACTION AND EXTENSION CHECKS WITH
- [SDR SIMA982963](https://openairdocs.org/sdr/SIMA982963.md): Bulb · failed · Oct 23, 1998 · N231LN · Saab 340B · Emergency Lighting
  > DFW - FLT 5070 - EMERGENCY LIGHT ABOVE SEAT 14A DOES NOT ILLUMINATE. REMOVED AND REPLACED BULB. OPERATIONAL CHECK GOOD. (M)
- [SDR WWMA9700176](https://openairdocs.org/sdr/WWMA9700176.md): Lamp · failed · Nov 20, 1997 · N231LN · Saab 340B · Landing Gear Position and Warning
  > DURING PREFLIGHT, CREW NOTED A STRONG BURNED ELECTRONIC SMELL. MAINTENANCE INSPECTED THE FLIGHT DECK, QUADRANT, CIRCUIT BREAKER PANELS, LIGHTS AND CONVERTERS. FOUND THE RIGHT MAIN LANDING GEAR DOWN AND LOCKED LAMP TO BE BURNT AND SHORTED. THE RECEPTICLE AND
- [SDR WWMA9700175](https://openairdocs.org/sdr/WWMA9700175.md): Control Assy · defective · Nov 20, 1997 · N231LN · Saab 340B · Landing Gear Position and Warning
  > DURING LANDING GEAR RETRACTION, THE INTRANSIT LIGHT DOES NOT ILLUMINATE. DURING GEAR EXTENSION THE INTRANSIT DOES ILLUMINATE. REPLACED LANDING GEAR CONTROL ASSEMBLY AND PREFORMED LANDING GEAR CHECKS.
- [SDR WWMA9700151](https://openairdocs.org/sdr/WWMA9700151.md): Handle Cover · loose · Sep 28, 1997 · N231LN · Saab 340B · Emergency Exits
  > RIGHT FRONT EMERGENCY EXIT HANDLE COVER CAME UNDONE. MAINTENANCE INSTALLED EXIT HANDLE COVER AND LOCK WIRED WITH BREAK AWAY WIRE.
- [SDR WWMA9700152](https://openairdocs.org/sdr/WWMA9700152.md): Smoke Detector · failed test · Sep 26, 1997 · N231LN · Saab 340B · Smoke Detection
  > DURING PREFLIGHT, THE LAVATORY SMOKE DETECTOR FAILED TO TEST. THE SMOKE DETECTOR WAS DEFERRED IAW THE MEL 26-2-1. THE PROBLEM COULD NOT BE DUPLICATED AND THE MEL WAS CLEARED.
- [SDR WWMA9700138](https://openairdocs.org/sdr/WWMA9700138.md): Brakes · malfunctioned · Sep 3, 1997 · N231LN · Saab 340B · Landing Gear Brake System
  > CREW REPORTED POOR BRAKING ACTION WITH HEAVY FOOT PRESSURE REQUIRED. DURING STATIC TEST AFTER LANDING BRAKES WERE UNABLE TO HOLD AT 50 PERCENT ENGINE POWER. MAINTENANCE PERFORMED FULL POWER RUNS WITH NO DISCREPANCIES NOTED, COULD NOT DUPLICATE PROBLEM.
- [SDR WWMA9700114](https://openairdocs.org/sdr/WWMA9700114.md): Lamp · failed · Aug 2, 1997 · N231LN · Saab 340B · Emergency Lighting
  > ONE EMERGENCY LIGHT ON CABIN FLOOR DOES NOT ILLUMINATE WITH THE OTHER LIGHTS. REPLACED LAMP.
- [SDR WWMA9700063](https://openairdocs.org/sdr/WWMA9700063.md): Bulb · failed · May 4, 1997 · N231LN · Saab 340B · Landing Gear Position and Warning
  > LEFT MAIN LANDING GEAR DOWN AND LOCKED LIGHT FAILED TO ILLUMINATE AFTER GEAR EXTENSION. EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. INDICATOR LIGHT BULBS WERE REPLACED. THE AIRCRAFT ABORTED THE FOLLOWING TAKEOFF WHEN THE LEFT OVERWING E
- [SDR WWMA9700015](https://openairdocs.org/sdr/WWMA9700015.md): Smoke Detector · dirty · Jan 26, 1997 · N231LN · Saab 340B · Smoke Detection
  > LAVATORY SMOKE LIGHT ILLUMINATED DURING PASSENGER BOARDING. MAINTENANCE CLEANED THE SMOKE DETECTOR.
- [SDR WWMA9600098](https://openairdocs.org/sdr/WWMA9600098.md): Smoke Detector · dirty · Nov 20, 1996 · N231LN · Saab 340B · Smoke Detection
  > CARGO SMOKE LIGHT ILLUMINATED AFTER TAKEOFF, THE AIRCRAFT RETURNED TO FIELD WITHOUT INCIDENT. MAINTENANCE CLEANED BOTH CARGO SMOKE DETECTORS AND RERACKED THE WARNING ELECTRONIC UNIT.
- [SDR WWMA9600089](https://openairdocs.org/sdr/WWMA9600089.md): Detector · dirty · Oct 30, 1996 · N231LN · Saab 340B · Smoke Detection
  > CREW REPORTED INTERMITTENT CARGO SMOKE WARNING LIGHT WITH TRIPLE STROKE CHIME, ONLY WHEN BLEEDS ARE OFF. CLEANED FWD AND AFT CARGO SMOKE DETECTORS IAW SMM 2613, FCK GOOD.
- [SDR WWMA9600051](https://openairdocs.org/sdr/WWMA9600051.md): Engine · flamed out · Jun 14, 1996 · N231LN · Saab 340B · Engine (Turbine/Turboprop)
  > DURING DESCENT FROM 17000 FT TO 15000 FT WITH TORQUE AT 60 PERCENT AND BEING SLIGHTLY RETARDED TO 55 PERCENT, THE LEFT ENGINE FLAMED OUT WITH A LOUD BANG. ALL GAUGES INDICATED FLAME-OUT. AUTO RELIGHT ENGAGED AND THE ENGINE RELIT AND RETURNED TO NORMAL. DURI
- [SDR WWMA9500074](https://openairdocs.org/sdr/WWMA9500074.md): Hyd Line · cracked · Oct 27, 1995 · N231LN · Saab 340B · Hydraulic System, Main
  > PILOT REPORTED, ON TAXI THE HYDRAULIC LIGHT CAME ON, LOST ALL HYDRAULIC FLUID AND LOST BRAKING EFFECTIVENESS. AIRCRAFT WAS TOWED BACK TO THE GATE. UPON INVESTIGATION REPLACED THE HYDRAULIC LINE BETWEEN THE PUMP AND FILTER UNIT, SERVICED THE HYDRAULIC SYSTEM

## 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 = 'N231LN' AND deregistration_id = 'N231LN-2019-09-06'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N231LN-2019-09-06/reports

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