# Service difficulty reports: N528SF, cancelled Mar 10, 2017

A list on [N528SF, cancelled Mar 10, 2017](https://openairdocs.org/deregistered/N528SF-2017-03-10.md).

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

- [SDR R7MR35340](https://openairdocs.org/sdr/R7MR35340.md): Transducer · inoperative · Jun 3, 2002 · N528SF · Bolkms BK117A4 · Engine BMEP/Torque Indicating
  > PRESSURE TRANSDUCER, UNIT INOPERATIVE. INCORRECT READINGS, 40 PERCENT TOO HIGH (FLUCTUATING). REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR R7M2002F00018](https://openairdocs.org/sdr/R7M2002F00018.md): Seal · leaking · Oct 19, 2001 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > NR3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2002F00312](https://openairdocs.org/sdr/2002F00312.md): Transducer · inoperative · Jun 8, 2001 · N528SF · Bolkms BK117A3 · Engine BMEP/Torque Indicating
  > PRESSURE TRANSDUCER INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (M)
- [SDR 2000ZZZX739](https://openairdocs.org/sdr/2000ZZZX739.md): Seal · leaking · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Compressor Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX738](https://openairdocs.org/sdr/2000ZZZX738.md): Seal · leaking · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX737](https://openairdocs.org/sdr/2000ZZZX737.md): Seal · leaking · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX736](https://openairdocs.org/sdr/2000ZZZX736.md): Bearing · corroded · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > BREARING HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX735](https://openairdocs.org/sdr/2000ZZZX735.md): Seal · damaged · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Section
  > LABYRINTH SEAL EXCESSIVELY GROOVED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX733](https://openairdocs.org/sdr/2000ZZZX733.md): Spring · worn · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX732](https://openairdocs.org/sdr/2000ZZZX732.md): Seal · worn · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX731](https://openairdocs.org/sdr/2000ZZZX731.md): Vane · cracked · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Compressor Section
  > VANE CRACKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX730](https://openairdocs.org/sdr/2000ZZZX730.md): Cover · worn · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > COVER WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX729](https://openairdocs.org/sdr/2000ZZZX729.md): Housing · worn · Jul 28, 1999 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > HOUSING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX734](https://openairdocs.org/sdr/2000ZZZX734.md): Shroud · damaged · Jul 8, 1999 · N528SF · Bolkms BK117A3 · Turbine Section
  > EXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX1799](https://openairdocs.org/sdr/99ZZZX1799.md): Shroud · tip rub · Jun 13, 1998 · N528SF · Bolkms BK117A3 · Turbine Section
  > EXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX4112](https://openairdocs.org/sdr/98ZZZX4112.md): Rotor Assy · damaged · Jun 13, 1998 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion Section
  > FAILED SB LT101-72-10-0153 (FAILED Q-ROTOR INSPECTION). EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 9,744.4.
- [SDR 98ZZZX3379](https://openairdocs.org/sdr/98ZZZX3379.md): Bearing · pitted · May 19, 1998 · N528SF · Bolkms BK117A3 · Turbine Section
  > BEARING HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3378](https://openairdocs.org/sdr/98ZZZX3378.md): Pickup · failed · May 19, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating System
  > PICKUP HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3377](https://openairdocs.org/sdr/98ZZZX3377.md): Pickup · failed · May 19, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating System
  > PICKUP HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3376](https://openairdocs.org/sdr/98ZZZX3376.md): Pickup · failed · Feb 28, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating System
  > PICKUP REJECTED PER SB 0163 (IMPROPER MARKINGS AND POSSIBLE REVERSE POLARITY). REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3375](https://openairdocs.org/sdr/98ZZZX3375.md): Pickup · failed · Feb 28, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating System
  > PICKUP REJECTED PER SB 0163 (IMPROPER MARKINGS AND POSSIBLE REVERSE POLARITY). REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3722](https://openairdocs.org/sdr/98ZZZX3722.md): Seal · leaking · Dec 19, 1997 · N528SF · Bolkms BK117A3 · Turbine Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3721](https://openairdocs.org/sdr/98ZZZX3721.md): Bearing · leaking · Dec 19, 1997 · N528SF · Bolkms BK117A3 · Turbine Engine Compressor Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1359](https://openairdocs.org/sdr/98ZZZX1359.md): Rotor Assy · defective · Dec 19, 1997 · N528SF · Bolkms BK117A3 · Turbine Section
  > TURBINE ROTOR ASSY FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 3,001.
- [SDR 97ZZZX2318](https://openairdocs.org/sdr/97ZZZX2318.md): Pin · worn · Feb 28, 1997 · N528SF · Bolkms BK117A3 · Main Rotor Head
  > SECONDARY BLADE PIN WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX2317](https://openairdocs.org/sdr/97ZZZX2317.md): Pin · worn · Feb 28, 1997 · N528SF · Bolkms BK117A3 · Main Rotor Head
  > SECONDARY BLADE PIN WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX2316](https://openairdocs.org/sdr/97ZZZX2316.md): Blade Pin · worn · Feb 28, 1997 · N528SF · Bolkms BK117A3 · Main Rotor Head
  > SECONDARY BLADE PIN WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX2136](https://openairdocs.org/sdr/97ZZZX2136.md): Blade Pin · worn · Feb 28, 1997 · N528SF · Bolkms BK117A3 · Main Rotor Head
  > SECONDARY BLADE PIN WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX637](https://openairdocs.org/sdr/97ZZZX637.md): Blade · cracked · Nov 7, 1996 · N528SF · Bolkms BK117A3 · Main Rotor Blades
  > M/R BLADE CRACKS AND SKIN BULGING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX636](https://openairdocs.org/sdr/97ZZZX636.md): Blade · cracked · Nov 7, 1996 · N528SF · Bolkms BK117A3 · Main Rotor Blades
  > M/R BLADE CRACKS AND SKIN BULGING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX2743](https://openairdocs.org/sdr/97ZZZX2743.md): Seal · chipped · Jul 19, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Compressor Section
  > SEAL NEW OUT-OF-BOX AND CHIPPED BEYOND ALLOWABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 97ZZZX2742](https://openairdocs.org/sdr/97ZZZX2742.md): Spring · worn · Jul 19, 1996 · N528SF · Bolkms BK117A3 · Turbine Section
  > SEAL RING EXPANDER SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.
- [SDR 97ZZZX2741](https://openairdocs.org/sdr/97ZZZX2741.md): Seal Ring · worn · Jul 19, 1996 · N528SF · Bolkms BK117A3 · Turbine Section
  > SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.
- [SDR 97ZZZX2740](https://openairdocs.org/sdr/97ZZZX2740.md): Bearing · rough · Jul 19, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Accessory Drive
  > BEARING ROUGH. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.
- [SDR 96ZZZX4681](https://openairdocs.org/sdr/96ZZZX4681.md): Seal · leaking · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Section
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 96ZZZX4680](https://openairdocs.org/sdr/96ZZZX4680.md): Seal · leaking · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Accessory Drive
  > ACCESSORY DRIVE SEALS LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW 3 EACH UNITS, CORRECTED PROBLEM.
- [SDR 96ZZZX4679](https://openairdocs.org/sdr/96ZZZX4679.md): Seal · leak · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Accessory Drive
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 96ZZZX4678](https://openairdocs.org/sdr/96ZZZX4678.md): Seal · leaking · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Accessory Drive
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 96ZZZX4677](https://openairdocs.org/sdr/96ZZZX4677.md): Seal Ring · worn · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Section
  > FIRST TURBINE SHROUD SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH, NEW UNITS, CORRECTED PROBLEM.
- [SDR 96ZZZX4676](https://openairdocs.org/sdr/96ZZZX4676.md): Seal · leaking · Jun 1, 1996 · N528SF · Bolkms BK117A3 · Turbine Engine Accessory Drive
  > SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 96ZZZX4268](https://openairdocs.org/sdr/96ZZZX4268.md): Rotor Assy · blade shift · May 8, 1996 · N528SF · Bolkms BK117A3 · Turbine Section
  > FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 18 +0.016 INCH. LEAD-THE-FLEET. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 4,274.1.
- [SDR 96ZZZX1565](https://openairdocs.org/sdr/96ZZZX1565.md): Gyro · failed · Jan 28, 1996 · N528SF · Bolkms BK117A3 · Directional Gyro and Indicating System
  > GYRO UNABLE TO SPOOL UP. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 95ZZZX5490](https://openairdocs.org/sdr/95ZZZX5490.md): Seal · leaking · May 9, 1995 · N528SF · Bolkms BK117A3 · Turbine Engine Compressor Section
  > NR 2 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.
- [SDR 95ZZZX5489](https://openairdocs.org/sdr/95ZZZX5489.md): Seal · leaking · May 9, 1995 · N528SF · Bolkms BK117A3 · Turbine Section
  > NR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.
- [SDR 95ZZZX5366](https://openairdocs.org/sdr/95ZZZX5366.md): Rotor Assy · blade shift · May 9, 1995 · N528SF · Bolkms BK117A3 · Turbine Section
  > FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 15, MINUS 0.009 INCH. REPLACED WITH NEW UNITS(S) CORRECTED PROBLEM. PART TOTAL CYCLES, 4296.4.
- [SDR 95ZZZX5300](https://openairdocs.org/sdr/95ZZZX5300.md): Seal Ring · worn · May 9, 1995 · N528SF · Bolkms BK117A3 · Turbine Section
  > FIRST TURBINE SHROUD SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNIT(S) CORRECTED PROBLEM.
- [SDR 95ZZZX5301](https://openairdocs.org/sdr/95ZZZX5301.md): Bellows · torn · Apr 15, 1995 · N528SF · Bolkms BK117A3 · Main Rotor Mast/Swashplate
  > BELLOWS IS TORN AROUND CLAMP AND FOLD AREAS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.
- [SDR 95ZZZX2583](https://openairdocs.org/sdr/95ZZZX2583.md): Computer · inoperative · Mar 28, 1995 · N528SF · Bolkms BK117A3 · Autopilot Computer
  > SPAS COMPUTER UNIT INOPERATIVE. REPLACED WITH NEW UNIT. CORRECTED PROBLEM.

## 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 = 'N528SF' AND deregistration_id = 'N528SF-2017-03-10'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N528SF-2017-03-10/reports

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