# Service difficulty reports: N527MB, cancelled Jul 22, 2016

A list on [N527MB, cancelled Jul 22, 2016](https://openairdocs.org/deregistered/N527MB-2016-07-22.md).

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

- [SDR QMLD201110052601](https://openairdocs.org/sdr/QMLD201110052601.md): Rib · cracked · Oct 5, 2011 · N527MB · Bolkms BK117A4 · Vertical Stabilizer, Spar/Rib
  > THE TOP RIB OF THE VERTICAL FIN WHERE THE ANTI COLLOSION LIGHT BASE IS MOUNTED, EXIBITS A CRACK RADIATING FROM THE NUTPLATE THAT IS MOUNTED UNDERNEATH.
- [SDR RMXA072820107103](https://openairdocs.org/sdr/RMXA072820107103.md): Skin · cracked · Jul 28, 2010 · N527MB · Bolkms BK117A4 · Rotorcraft Tail Boom
  > DURING MX A 1" LONG CRACK WAS DISCOVERED IN THE TAILBOOM VERTICAL FIN OUTER SKIN STARTING FROM AN ACCESS OPENING AT THE UPPER END OF THE VERTICAL FIN. REPAIR SCHEME REQUEST WAS SUBMITTED FROM THE MFG.
- [SDR RMXA032320097103](https://openairdocs.org/sdr/RMXA032320097103.md): Fitting · cracked · Mar 23, 2009 · N527MB · Bolkms BK117A4 · Rotorcraft Tail Boom
  > DURING A DAILY INSPECTION, THE TAIL ROTOR GEARBOX MOUNT FITTING WAS DISCOVERED CRACKED.
- [SDR 04222008](https://openairdocs.org/sdr/04222008.md): Support Bracket · loose · Apr 22, 2008 · N527MB · Bolkms BK117A4 · Tail Rotor Control System
  > DURING SCHEDULED INSPECTION, A TAIL ROTOR CONTROL TUBE SUPPORT MOUNT WAS FOUND LOOSE INSIDE THE TAILCONE DUE TO WORKING RIVETS.
- [SDR TI1R001485](https://openairdocs.org/sdr/TI1R001485.md): Indicator · inoperative · Jun 1, 2001 · N527MB · Bolkms BK117A3 · Engine RPM Indicating System
  > INDICATOR NG - NEEDLE DOES NOT MOVE. REMOVED AND REPLACED.
- [SDR TI1R001400](https://openairdocs.org/sdr/TI1R001400.md): Control Unit · faulty · Jan 23, 2001 · N527MB · Bolkms BK117A3 · Flight Compartment Lighting
  > CONTROL UNIT - SHUTS DOWN ON FULL BRIGHT. REMOVED AND REPLACED.
- [SDR 20000721SH029](https://openairdocs.org/sdr/20000721SH029.md): Engine · making metal · Jun 10, 2000 · N527MB · Bolkms BK117A3 · Reciprocating Engine Oil System
  > INSPECTED NR 2 ENGINE CHIP DETECTOR AND FOUND NO SIGN OF CHIPS OR DEBRIS. CLEARED CHIP PLUG AND REINSERTED INTO HOUSING. PILOT PERFORMED A GROUND RUN OF THE NR 2 ENGINE AND THE CHIP LIGHT DID NOT ILLUMINATE. PILOT SHUT ENGINE DOWN, RE-CHECKED CHIP PLUG AND
- [SDR 20000413SH040](https://openairdocs.org/sdr/20000413SH040.md): Indicator · fluctuates · Jan 13, 2000 · N527MB · Bolkms BK117A3 · Engine RPM Indicating System
  > INDICATOR FLUCTUATES UNDER POWER. REMOVED AND REPLACED. (X)
- [SDR 20000413SH041](https://openairdocs.org/sdr/20000413SH041.md): Indicator · damaged · Jan 12, 2000 · N527MB · Bolkms BK117A3 · Engine RPM Indicating System
  > NG INDICATOR TRIPPED CIRCUIT BREAKER WHEN INSTALLED AFTER REPAIR. REMOVED AND REPLACED. (X)
- [SDR 99ZZZX3281](https://openairdocs.org/sdr/99ZZZX3281.md): Pump · failed · Aug 10, 1999 · N527MB · Bolkms BK117A3 · Emergency Equipment
  > MED VAC PUMP MOTOR SEIZING-UP CAUSING SMOKE AND FUMES IN COCKPIT WHICH CREATED AN EMERGENCY LANDING. REPLACED WITH SERVICEABLE VAC PUMP ASSY. FUNCTIONAL CHECK OK. NO FURTHER PROBLEMS.
- [SDR 99ZZZX3357](https://openairdocs.org/sdr/99ZZZX3357.md): Rod End · worn · Oct 7, 1998 · N527MB · Bolkms BK117A3 · Main Rotor Head
  > BEARING WORN ON ROD END. REMOVED AND REPLACED.
- [SDR 99ZZZX3356](https://openairdocs.org/sdr/99ZZZX3356.md): Rod End · worn · Oct 7, 1998 · N527MB · Bolkms BK117A3 · Main Rotor Head
  > BEARING WORN. REMOVED AND REPLACED.
- [SDR 99ZZZX911](https://openairdocs.org/sdr/99ZZZX911.md): Indicator · failed · Sep 28, 1998 · N527MB · Bolkms BK117A3 · Engine RPM Indicating System
  > NR 2 NEEDLE ON TACHOMETER INDICATOR STAYS AT ZERO, NR 1 NEEDLE RUNS 15 PERCENT LOW, AND ROTOR NEEDLE RUNS 4-5 PERCENT HIGH. REMOVED AND REPLACED.
- [SDR 99ZZZX905](https://openairdocs.org/sdr/99ZZZX905.md): Starter · damaged · Aug 28, 1998 · N527MB · Bolkms BK117A3 · Starter-Generator
  > DRIVE DAMPER BROKEN. REMOVED AND REPLACED.
- [SDR 98ZZZX335](https://openairdocs.org/sdr/98ZZZX335.md): Valve · failed · Dec 8, 1997 · N527MB · Bolkms BK117A3 · Pneumatic Distribution System
  > VALVE INOPERATIVE. REMOVED AND REPLACED.
- [SDR 97ZZZX5055](https://openairdocs.org/sdr/97ZZZX5055.md): Indicator · failed · Oct 16, 1997 · N527MB · Bolkms BK117A3 · Tire
  > CIRCUIT BREAKER TRIPS. INDICATOR HAS INTERNAL SHORT. REMOVED AND REPLACED.
- [SDR 97ZZZX3591](https://openairdocs.org/sdr/97ZZZX3591.md): Computer · failed · Jun 17, 1997 · N527MB · Bolkms BK117A3 · Autopilot Computer
  > SPAS COMPUTER CAUTION LIGHT ILLUMINATES INTERMITTENTLY IN-FLIGHT. UNIT FAILED AFTER ONLY 178 HOURS. REMOVED AND REPLACED. (X)
- [SDR 96ZZZX4670](https://openairdocs.org/sdr/96ZZZX4670.md): Generator · armature scored · Jun 17, 1996 · N527MB · Bolkms BK117A3 · Starter-Generator
  > START/GENERATOR ARMATURE SCORED DUE TO BRUSH HOLDER BENT.
- [SDR 96ZZZX3173](https://openairdocs.org/sdr/96ZZZX3173.md): Gyro · failed · Apr 26, 1996 · N527MB · Bolkms BK117A3 · Attitude Gyro and Indicating System
  > SLOW TO OPERATE, PULL THREE OR FOUR TIMES TO ERECT. REPAIR AS NECESSARY.
- [SDR RMXA9520591](https://openairdocs.org/sdr/RMXA9520591.md): Bellcrank Assy · bearing worn · Mar 26, 1995 · N527MB · Bolkms BK117A3 · Tail Rotor Control System
  > TEFLON BEARING IS WORN. REMOVED AND REPLACED.

## 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 = 'N527MB' AND deregistration_id = 'N527MB-2016-07-22'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N527MB-2016-07-22/reports

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