# Service difficulty reports: N911NC, cancelled Aug 22, 2013

A list on [N911NC, cancelled Aug 22, 2013](https://openairdocs.org/deregistered/N911NC-2013-08-22.md).

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

- [SDR HEEA065106](https://openairdocs.org/sdr/HEEA065106.md): Indicator · intermittent · Nov 11, 1999 · N911NC · Bolkms BK117A3 · Rotor Drive Indicating System
  > INDICATOR INTERMITTENTLY INOPERATIVE, INDICATOR TEST AND FUNCTION.
- [SDR HEEA065105](https://openairdocs.org/sdr/HEEA065105.md): Transmitter · intermittent · Nov 11, 1999 · N911NC · Bolkms BK117A3 · Rotor Drive Indicating System
  > TORQUE TRANSMITTER NTERMITTENTLY INOPERATIVE.
- [SDR HEEA061810](https://openairdocs.org/sdr/HEEA061810.md): Receiver · malfunctioned · Apr 8, 1999 · N911NC · Bolkms BK117A3 · VHF Communications System
  > AFTER WARM-UP, THERE IS CONSTANT FEEDBACK.
- [SDR HEEA0015658](https://openairdocs.org/sdr/HEEA0015658.md): Radar · malfunctioned · Aug 17, 1998 · N911NC · Bolkms BK117A3 · Weather Radar System
  > INDICATOR SAYS ERROR WHEN GOING THROUGH TEST MODE.
- [SDR HEEA0014847](https://openairdocs.org/sdr/HEEA0014847.md): Switch · loose · Jun 22, 1998 · N911NC · Bolkms BK117A3 · Visual Omnirange (VOR) System
  > ADF/VOR SWITCH IS LOOSE AND NO ADF INDICATION.
- [SDR HEEA0014511](https://openairdocs.org/sdr/HEEA0014511.md): Light · inoperative · Jun 4, 1998 · N911NC · Bolkms BK117A3 · Fuel Quantity Indicator
  > INSTRUMENT LIGHT IS INOPERATIVE.
- [SDR HEEA0013931](https://openairdocs.org/sdr/HEEA0013931.md): Gps · failed · Apr 16, 1998 · N911NC · Bolkms BK117A3 · Global Positioning System
  > GPS NOT PICKING UP SATELLITES.
- [SDR HEEA0012773](https://openairdocs.org/sdr/HEEA0012773.md): Transponder · failed · Feb 5, 1998 · N911NC · Bolkms BK117A3 · ATC Transponder System
  > TRANSPONDER HAS NO OUTPUT.
- [SDR HEEA0011798](https://openairdocs.org/sdr/HEEA0011798.md): Filter Assy · malfunctioned · Nov 5, 1997 · N911NC · Bolkms BK117A3 · Main Rotor Gearbox
  > FILTER ASSY BYPASS INDICATOR DOES NOT PROPERLY OPERATE.
- [SDR HEEA0011643](https://openairdocs.org/sdr/HEEA0011643.md): Indicator · out of tolerance · Oct 22, 1997 · N911NC · Bolkms BK117A3 · Engine RPM Indicating System
  > ENGINE RPM INDICATOR HIGH OUT OF TOLERANCE ABOVE 50 PERCENT INTERMITTENT OPERATION.
- [SDR HEEA0010198](https://openairdocs.org/sdr/HEEA0010198.md): Actuator · leaking · Jun 23, 1997 · N911NC · Bolkms BK117A3 · Tail Rotor Control System
  > T/R ACTUATOR LEAKING HYRAULIC FLUID.
- [SDR HEEA0010178](https://openairdocs.org/sdr/HEEA0010178.md): Indicator · intermittent · Jun 19, 1997 · N911NC · Bolkms BK117A3 · Main Rotor Indicating System
  > MAST MOMENT INDICATOR INTERMITTENT IN FLIGHT.
- [SDR HEEA0010177](https://openairdocs.org/sdr/HEEA0010177.md): Transmitter · intermittent · Jun 19, 1997 · N911NC · Bolkms BK117A3 · Main Rotor Indicating System
  > TORQUE TRANSMITTER INTERMITTENT IN FLIGHT.
- [SDR HEEA0010048](https://openairdocs.org/sdr/HEEA0010048.md): Indicator · defective · Jun 5, 1997 · N911NC · Bolkms BK117A3 · Engine RPM Indicating System
  > AFTER ONE HOUR OF USE, NEEDLE DROPS FROM NINETY PERCENT TO FIFTY PERCENT.
- [SDR HAIHEEA9597](https://openairdocs.org/sdr/HAIHEEA9597.md): Blade · defective · Apr 24, 1997 · N911NC · Bolkms BK117A3 · Main Rotor Blades
  > WEIGHT PACKAGE MOVIAL. S/N 1158 & 1174
- [SDR HAIHEEA9542](https://openairdocs.org/sdr/HAIHEEA9542.md): Armature · brushes worn · Apr 23, 1997 · N911NC · Bolkms BK117A3 · Starter-Generator
  > START/GEN BRUSHES WORN. SHORTED OUT. RECEIVED REWOUND FROM VENDOR. TIME SINCE REPAIR 258:15.
- [SDR HEEA979019](https://openairdocs.org/sdr/HEEA979019.md): Control Display · faulty · Feb 10, 1997 · N911NC · Bolkms BK117A3 · ATC Transponder System
  > DIMMING CONTROL NOT WORKING, STAYS BRIGHT. REPLACED V101 PHOTOCELL AND S103 IDT SWITCH. REPAIRED. TESTED. CHECKED 28V LIGHTING. BENCH CHECK GOOD.
- [SDR HEEA968811](https://openairdocs.org/sdr/HEEA968811.md): Mount · cracked · Dec 30, 1996 · N911NC · Bolkms BK117A3 · Engine Mount Section
  > ONE LEG OF ENGINE MOUNT CRACKED IN HALF.
- [SDR HEEA968297](https://openairdocs.org/sdr/HEEA968297.md): Indicator · reads high · Oct 14, 1996 · N911NC · Bolkms BK117A3 · Engine RPM Indicating System
  > INDICATES HIGH OUT OF TOLERANCE AT 100%. STICKS ON START.
- [SDR HEEA968184](https://openairdocs.org/sdr/HEEA968184.md): Control Unit · malfunction · Oct 10, 1996 · N911NC · Bolkms BK117A3 · VHF Communications System
  > ADJUSTMENT KNOBS FOR FREQUENCY CHANGE DON'T WORK PROPERLY. PERFORMED PRELIMINARY INSPECTION. CLEANED WAFERS, FOUND PHOTOCELL (V101) NOT DIMMING. REPLACED V101 PHOTOCELL. REPAIRED. RAISED HEADER (P101) AND APPLIED HUMISEAL. ALSO REPLACED 28V BULB (DS301).
- [SDR HEEA967981](https://openairdocs.org/sdr/HEEA967981.md): Manifold · cracked · Sep 30, 1996 · N911NC · Bolkms BK117A3 · Engine Fuel Distribution
  > ENGINE LEAK CHECK REVEALED: FUEL LEAKING FROM FUEL MANIFOLD TUBING. REPLACED DISCREPANT PART.
- [SDR HEEA967805](https://openairdocs.org/sdr/HEEA967805.md): Ejector Duct · damaged · Sep 9, 1996 · N911NC · Bolkms BK117A3 · Engine Collector/Tailpipe/Nozzle
  > DAMAGE DONE TO EJECTORS. FROM BUMPER PADS THAT ARE MOUNTED TO ENG. COWLING AND AIRFRAME. BUMPER PADS ARE RUBBING HARD ON EXHAUST STACK (EJECTOR) CAUSING WORN AREAS IN FOUR SPOTS. REMOVED DAMAGED AREAS, MANUFACTURER DOUBLERS USING TITANIUM MIL-T9046 TYPE 1 CO
- [SDR HEEA967599](https://openairdocs.org/sdr/HEEA967599.md): Control Box · defective · Jul 31, 1996 · N911NC · Bolkms BK117A3 · Dependent Position Determining System
  > ON LCD DISPLAY DIGITS ARE NOT COMPLETE IN SQUELCH SPOTS. CLEANED WAFERS AND DISPLAY CONNECTORS. ALSO REPLACED LOCK RING. REPAIRED. BENCH CHECK GOOD.
- [SDR HEEA966434](https://openairdocs.org/sdr/HEEA966434.md): Control Unit · defective · Jan 12, 1996 · N911NC · Bolkms BK117A3 · VHF Communications System
  > NOT ALL PL TONES MATCH THUMBWHEEL TO DIGITAL READOUT. TROUBLESHOT AND REPLACED 8 EACH CRIMP CONNECTOR SOCKETS. REPAIRED. BENCH CHECK GOOD.
- [SDR HEEA956199](https://openairdocs.org/sdr/HEEA956199.md): Indicator · light inop · Dec 7, 1995 · N911NC · Bolkms BK117A3 · Ground Proximity System
  > BENCH CHECK NEEDED. REPLACED DH LIGHT SWITCH ASSY. DS101 DUE TO INOPERATIVE LIGHT. REPAIRED. PERFORMED COMPLETE ALIGNMENT AND CALIBRATION. BENCH CHECK GOOD.
- [SDR HEEA956128](https://openairdocs.org/sdr/HEEA956128.md): Control · defective · Nov 22, 1995 · N911NC · Bolkms BK117A3 · Automatic Direction Finder (ADF) System
  > SOME NUMBERS ARE NOT LIGHTING UP AS REPORTED BY PILOT. REPLACED DEFECTIVE IC205 INTEGRATED CIRCUIT. REPAIRED AND UNIT BENCH CHECK GOOD.
- [SDR HEEA955180](https://openairdocs.org/sdr/HEEA955180.md): Indicator · defective · Jun 13, 1995 · N911NC · Bolkms BK117A3 · Engine RPM Indicating System
  > #1 NEEDLE READ 4% LOW AFTER 10 MINUTES OPERATION.
- [SDR HEEA955146](https://openairdocs.org/sdr/HEEA955146.md): Transceiver · defective · Jun 13, 1995 · N911NC · Bolkms BK117A3 · VHF Communications System
  > OCCASIONALLY CUTTING OUT ON TRANSMIT. MIKE AUDIO IS INTERMITTENT. REPLACED BAD CR2 AND CR3 DIODES. REPAIRED.
- [SDR 95ZZZX2211](https://openairdocs.org/sdr/95ZZZX2211.md): Control Unit · failed · Mar 3, 1995 · N911NC · Bolkms BK117A4 · Flight Compartment Lighting
  > PILOT REPORTED SMELLING SMOKE IN COCKPIT. RETURNED TO BASE. MECHANIC INSPECTED AND FOUND COPILOT INSTRUMENT LIGHT DIMMER CONTROL CAUSE OF SMOKE. FOUND WATER ON TOP OF UNIT. IPC FIGURE 923-50.
- [SDR HEEA954336](https://openairdocs.org/sdr/HEEA954336.md): Skynav 5000 · malfunction · Feb 10, 1995 · N911NC · Bolkms BK117A3 · Global Positioning System
  > AUTO DIM NOT WORKING, NOT HOLDING PROGRAMMABLE WAYPOINTS AND KEEPS CYCLING THROUGH SELF TEST. TIME SINCE REPAIR 0:00.
- [SDR HEEA954253](https://openairdocs.org/sdr/HEEA954253.md): Skynav 5000 · defective · Jan 23, 1995 · N911NC · Bolkms BK117A3 · Flight Management Computing Hardware System
  > NOT HOLDING PROGRAMMABLE WAYPOINTS. ENTERED EXTRA WAYPOINTS INTO USER WAYPOINTS. ENTERED "DIRECT TO" FUNCTION AND PULLED POWER PLUG FROM TEST PANEL. AFTER TURNING UNIT BACK ON, FOUND UNIT DROPPED ALL USER WAYPOINTS.

## 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 = 'N911NC' AND deregistration_id = 'N911NC-2013-08-22'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N911NC-2013-08-22/reports

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