# Service difficulty reports: N54191, cancelled May 11, 2024

A list on [N54191, cancelled May 11, 2024](https://openairdocs.org/deregistered/N54191-2024-05-11.md).

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

- [SDR HEEA082648](https://openairdocs.org/sdr/HEEA082648.md): Case · corroded · Dec 11, 2002 · N54191 · Bolkms BO105S · Battery/Charger System
  > BATTERY HAS EXCESSIVE CORROSION ON OUTER CASE.
- [SDR HEEA061591](https://openairdocs.org/sdr/HEEA061591.md): Filter Assembly · malfunctioned · Apr 2, 1999 · N54191 · Bolkms BO105S · Turbine Engine Oil System
  > FILTER ASSEMBLY WILL NOT BYPASS.
- [SDR HEEA0015908](https://openairdocs.org/sdr/HEEA0015908.md): Switch · failed · Aug 28, 1998 · N54191 · Bolkms BO105S · Engine Oil Indicating System
  > OIL LIGHT WOULD NOT ILLUMINATE WHEN BATTERY SWITCHED TO ON POSITION.
- [SDR HEEA0015653](https://openairdocs.org/sdr/HEEA0015653.md): Encoder · inoperative · Aug 17, 1998 · N54191 · Bolkms BO105S · Altimeter, Barometric/Encoder
  > ALTIMETER HAS NO ENCODER OUTPUT.
- [SDR HEEA0015115](https://openairdocs.org/sdr/HEEA0015115.md): Valve · sticking · Jul 1, 1998 · N54191 · Bolkms BO105S · Engine Oil Shutoff Valve
  > VALVE STICKS IN OPEN POSITION.
- [SDR HEEA0015079](https://openairdocs.org/sdr/HEEA0015079.md): Bellcrank · worn · Jul 1, 1998 · N54191 · Bolkms BO105S · Tail Rotor Control System
  > BELLCRANK ASSY HAS WORN BEARING BORE HOLE.
- [SDR HEEA0014774](https://openairdocs.org/sdr/HEEA0014774.md): Encoder · failed · Jun 11, 1998 · N54191 · Bolkms BO105S · Altimeter, Barometric/Encoder
  > ENCODER GIVES NO VALID OUTPUT.
- [SDR HEEA0014769](https://openairdocs.org/sdr/HEEA0014769.md): Encoder · malfunctioned · Jun 11, 1998 · N54191 · Bolkms BO105S · Altimeter, Barometric/Encoder
  > ENCODER DOES NOT HOLD CALIBRATION SLOW TO RESPOND.
- [SDR HEEA0014505](https://openairdocs.org/sdr/HEEA0014505.md): Ac Regulator · failed · Jun 4, 1998 · N54191 · Bolkms BO105S · AC Regulator
  > UNABLE TO ADJUST VOLTAGE. REGULATOR FAILED.
- [SDR HEEA0014026](https://openairdocs.org/sdr/HEEA0014026.md): Elt · failed · Apr 22, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > BATTERY INOPERATIVE. TIME SINCE REPAIR 0:00.
- [SDR HEEA0013974](https://openairdocs.org/sdr/HEEA0013974.md): Elt · failed · Apr 16, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > ELT COMES ON INTERMITTENTLY.
- [SDR HEEA0013741](https://openairdocs.org/sdr/HEEA0013741.md): Elt · failed · Apr 2, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > INADVERTENT ACTIVATION FOR UNKNOWN PERIODS OF TIME.
- [SDR HEEA0013712](https://openairdocs.org/sdr/HEEA0013712.md): Switch · defective · Apr 2, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > SWITCH CAUSES ELT TO GO OFF ALL THE TIME.
- [SDR HEEA0013600](https://openairdocs.org/sdr/HEEA0013600.md): Power Supply · failed · Mar 26, 1998 · N54191 · Bolkms BO105S · Exterior Lighting
  > ANTI COLLISION LIGHT INOPERATIVE.
- [SDR HEEA0013303](https://openairdocs.org/sdr/HEEA0013303.md): Elt · failed · Mar 5, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > NARCO ELT TRANSMITS SIGNAL INADVERTANTLY.
- [SDR HEEA0013241](https://openairdocs.org/sdr/HEEA0013241.md): Elt · defective · Mar 4, 1998 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > NARCO ELT TRANSMITS SIGNAL INADVERTANTLY.
- [SDR HEEA0012799](https://openairdocs.org/sdr/HEEA0012799.md): Loran · failed · Feb 5, 1998 · N54191 · Bolkms BO105S · Long-Range Navigation (LORAN) System
  > KLN88 NO DISPLAY.
- [SDR HEEA0012213](https://openairdocs.org/sdr/HEEA0012213.md): Elt · failed · Dec 3, 1997 · N54191 · Bolkms BO105S · Emergency Locator Beacon
  > ELT ACTIVATES WITH SWITCH IN ARMED POSITION.
- [SDR HEEA0011710](https://openairdocs.org/sdr/HEEA0011710.md): Indicator · failed · Oct 22, 1997 · N54191 · Bolkms BO105S · Main Rotor Indicating System
  > LIGHT DOES NOT COME ON.
- [SDR HEEA0011709](https://openairdocs.org/sdr/HEEA0011709.md): Transmitter · failed · Oct 22, 1997 · N54191 · Bolkms BO105S · Main Rotor Indicating System
  > MAST MOMENT LIGHT DOES NOT COME ON.
- [SDR HAIHEEA9385](https://openairdocs.org/sdr/HAIHEEA9385.md): Loran · defective · Apr 16, 1997 · N54191 · Bolkms BO105S · Long-Range Navigation (LORAN) System
  > LORAN BACK LIGHTING INOPERATIVE ON THREE BUTTONS AND UNIT DROPPING OFF LINE WHEN VIBRATED.
- [SDR HEEA978999](https://openairdocs.org/sdr/HEEA978999.md): Oil Pump · scarred · Feb 10, 1997 · N54191 · Bolkms BO105S · Main Rotor Gearbox
  > OIL PUMP SCARRED INTERNAL BUSHING.
- [SDR HEEA968654](https://openairdocs.org/sdr/HEEA968654.md): Center Case · bore worn · Dec 10, 1996 · N54191 · Bolkms BO105S · Main Rotor Gearbox
  > CENTER CASE OUTPUT BORE WORN, CORROSION ON BASE FLANGE AND WEAR STEP ON SUPPORT PINS AND NOZZLE RING SURFACE.
- [SDR HEEA968468](https://openairdocs.org/sdr/HEEA968468.md): Control Unit · shaft failed · Nov 6, 1996 · N54191 · Bolkms BO105S · VHF Communications System
  > SELECTOR CONTROL KNOB AND SHAFT PULLED OUT OF CONTROL. PERFORMED PRELIMINARY INSPECTION, FOUND RETAINING RING MISSING. INSTALLED NEW RETAINING RING P/N 090-0036-04. REPAIRED. BENCH CHECK GOOD.
- [SDR HEEA968316](https://openairdocs.org/sdr/HEEA968316.md): Transmitter · fluctuates · Oct 14, 1996 · N54191 · Bolkms BO105S · Fuel Pressure Indicator
  > FLUCTUATING OUTPUT WHEN UNIT IS VIBRATED.
- [SDR HEEA967641](https://openairdocs.org/sdr/HEEA967641.md): Blade · separation · Aug 8, 1996 · N54191 · Bolkms BO105S · Main Rotor Blades
  > M/R BLADE SEPARATION ON THE LEADING EDGE ABRASION STRIPS BEYOND LIMITS. THE SEPARATION ARE ON THE INBOARD STRIP AND THE TWO CENTER STRIPS.
- [SDR HEEA967307](https://openairdocs.org/sdr/HEEA967307.md): Indicator · erratic · May 31, 1996 · N54191 · Bolkms BO105S · Engine EGT/TIT Indicating System
  > NEEDLE HAS AN ERRATIC INDICATION. TIME SINCE REPAIR 0:00.
- [SDR HEEA967180](https://openairdocs.org/sdr/HEEA967180.md): Receiver · defective · May 9, 1996 · N54191 · Bolkms BO105S · Visual Omnirange (VOR) System
  > VOR BEARING OUT OF TOLERANCE. 24 MONTH INSPECTION DUE.
- [SDR HEEA967056](https://openairdocs.org/sdr/HEEA967056.md): Turbine · seized · Apr 18, 1996 · N54191 · Bolkms BO105S · Cabin Cooling System
  > TURBINE WILL NOT ROTATE AND TO COMPLY WITH SB.2200850-21-92019 AND SB.204755-21-92046.
- [SDR HEEA967012](https://openairdocs.org/sdr/HEEA967012.md): Indicator · error · Apr 17, 1996 · N54191 · Bolkms BO105S · Engine EGT/TIT Indicating System
  > NEEDLE HAS EXCESSIVE FRICTION ERROR AND INDICATES 45 DEGREES AT ZERO.
- [SDR HEEA966709](https://openairdocs.org/sdr/HEEA966709.md): Blade · cracked · Feb 20, 1996 · N54191 · Bolkms BO105S · Main Rotor Blades
  > BLADE NOSE AND NECK SHELLS CRACKED AT THE CUFF AREA)
- [SDR HEEA955523](https://openairdocs.org/sdr/HEEA955523.md): Loran · malfunction · Aug 2, 1995 · N54191 · Bolkms BO105S · Long-Range Navigation (LORAN) System
  > LORAN NO SCREEN INDICATION.
- [SDR HEEA955121](https://openairdocs.org/sdr/HEEA955121.md): Wheel · blades failed · Jun 2, 1995 · N54191 · Bolkms BO105S · Turbine Section
  > ENGINE REMOVED DUE TO ENGINE FAILURE ON RUN-UP. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: 100% OF 1ST STAGE WHEEL BLADE TIPS FAILED.450" OUTBOARD FROM HUB TO BLADE TIP LEADING EDGE DUE TO THERMAL FATIGUE CAUSED BY ENGINE OPERATING IN AN OVERTEMP
- [SDR HEEA955120](https://openairdocs.org/sdr/HEEA955120.md): Wheel · blades failed · Jun 2, 1995 · N54191 · Bolkms BO105S · Turbine Section
  > ENGINE REMOVED DUE TO ENGINE FAILURE ON RUN-UP. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: 100% OF 1ST STAGE WHEEL BLADE TIPS FAILED.450" OUTBOARD FROM HUB TO BLADE TIP LEADING EDGE DUE TO THERMAL FATIGUE CAUSED BY ENGINE OPERATING IN AN OVERTEMP
- [SDR HEEA954353](https://openairdocs.org/sdr/HEEA954353.md): Power Supply · inoperative · Feb 14, 1995 · N54191 · Bolkms BO105S · Exterior Lighting
  > INOPERATIVE. TIME SINCE REPAIR 21:15.

## 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 = 'N54191' AND deregistration_id = 'N54191-2024-05-11'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N54191-2024-05-11/reports

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