# Service difficulty reports: N979HA, cancelled May 12, 2017

A list on [N979HA, cancelled May 12, 2017](https://openairdocs.org/deregistered/N979HA-2017-05-12.md).

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

- [SDR 39LA2014082188](https://openairdocs.org/sdr/39LA2014082188.md): Selector Valve · failed · Aug 21, 2014 · N979HA · Dhav DHC8103 · Landing Gear Door Retract Section
  > LEFT MAIN GEAR DOOR APPEARED TO RE-OPEN AFTER NORMAL RETRACTION. WOULD NOT CLOSE AFTER CYCLE. R & R LG SELECTOR VLV IAW D8 AMM 32-30-41. FUNCTIONAL CHECKED GOOD NO LEAKS NOTED.
- [SDR P4YA2012112800001](https://openairdocs.org/sdr/P4YA2012112800001.md): Actuator · leaking · Nov 28, 2012 · N979HA · Dhav DHC8103 · Drag Control Actuator
  > ON TOUCHDOWN, THE NR 1 HYD ISOLATION VALVE CAUTION LIGHT ILLUMINATED, LOST NR 1 HYD QTY AND ASSOCIATED BRAKES. TAXIIED IN USING REVERSE AND THE PARKING BRAKE. REPLACED RT INBD SPOILER ACTUATOR.
- [SDR P4YA2012101200001](https://openairdocs.org/sdr/P4YA2012101200001.md): Display · failed · Oct 12, 2012 · N979HA · Dhav DHC8103 · Autopilot System
  > THE AUTOPILOT DISPLAY WENT BLACK (ID-802) AND COULD SMELL BURNING WIRE. R & R NR 1 ID-802 ADVISORY DISPLAY.
- [SDR 3PRA2011100800001](https://openairdocs.org/sdr/3PRA2011100800001.md): Line · leaking · Oct 8, 2011 · N979HA · Dhav DHC8103 · Hydraulic System, Main
  > STRONG CHEMICAL ODOR IN COCKPIT AFTER TAKEOFF. FOUND PINHOLE LEAK IN NOSE GEAR HYD LINE. REPAIRED THE LINE AND CYCLED 8 TIMES WITH NO DEFECTS OR LEAKS NOTED.
- [SDR 3PRA2011100700001](https://openairdocs.org/sdr/3PRA2011100700001.md): Condenser · odor · Oct 7, 2011 · N979HA · Dhav DHC8103 · Air Distribution System
  > STRONG CHEMICAL ODOR ON FLIGHT DECK AND IN CABIN AFTER TAKEOFF WITH BLEED AIR ON FOR AN APPROX 4 MINUTE DURATION. MX PERSONNEL REMOVED, CLEANED, AND REINSTALLED CONDENSOR/MIXER. MX PERFORMED AN ENGINE RUN AFTER CLEANING AND NOTED NO FURTHER ODOR.
- [SDR 3PRA2011051400001](https://openairdocs.org/sdr/3PRA2011051400001.md): Connector · dirty · May 14, 2011 · N979HA · Dhav DHC8103 · Fire Protection System Wiring
  > SMOKE LIGHT ILLUMINATED INTERMITTENTLY ON CLIMBOUT. CLEANED AND RESEATED CONNECTORS IN THE BAG BAY - CONNECTOR DESIGNATOR 2612-P2 & 2612-P4
- [SDR 3PRA2011040400001](https://openairdocs.org/sdr/3PRA2011040400001.md): Annunciator · intermittent · Apr 1, 2011 · N979HA · Dhav DHC8103 · Smoke Detection
  > FLIGHT 51395 SMOKE MASTER WARNING ANNUNCIATOR ILLUMINATED INTERMITTENTLY IN FLIGHT FOR APPROX 5 SECOND INTERVALS EACH TIME, THEN EXTINGUISHED. CREW RETURNED TO BASE AS A PRECAUTIONARY MEASURE. UPON INSP, MX FOUND A PIN PUSHED OUT OF THE BAGGAGE SMOKE DETECTO
- [SDR P4YA2010110100001](https://openairdocs.org/sdr/P4YA2010110100001.md): Brake Cable · frayed · Nov 1, 2010 · N979HA · Dhav DHC8103 · Landing Gear Brake System
  > NO RT BRAKES DURING LANDING ROLLOUT. REPLACED DAMAGED CONTROL CABLE (SEPARATED STRANDS).
- [SDR KPVA200722](https://openairdocs.org/sdr/KPVA200722.md): Actuator · cracked · Nov 26, 2007 · N979HA · Dhav DHC8103 · Drag Control Actuator
  > (PIREP) HYDRAULIC FLUID LEAKING FROM LEFT WING. (MX) REMOVED AND REPLACED LT OUTBOARD SPOILER ACTUATOR IAW DHC-8 MM 27-14-05 PG 201-203. UPON INSPECTION IT IS NOTED THAT THE ACTUATOR HOUSING CRACKED AND FAILED AT THE PISTON END CAP. THE END CAP SEPARATED FR
- [SDR KPVA200716](https://openairdocs.org/sdr/KPVA200716.md): Tube · failed · Oct 4, 2007 · N979HA · Dhav DHC8103 · Turbine Engine Oil System
  > (PIREP) ON CLIMBOUT AT 3000FT, THE NR 2 ENGINE OIL PRESSURE LIGHT ILLUMINATED AND ZERO OIL PRESSURE ON THE GAUGE. SHUT THE ENGINE DOWN PER CHECKLIST AND LANDED WITHOUT INCIDENT. (MX) REMOVED AND REPLACED NR 2 ENGINE IAW RORM AIA M-105. OPS AND LEAK CHECK IA
- [SDR KPVA200711](https://openairdocs.org/sdr/KPVA200711.md): Relay · burned · Aug 24, 2007 · N979HA · Dhav DHC8103 · APU System Wiring
  > (PIREP) SMOKE IN COCKPIT AND IN CABIN WHILE BOARDING DOOR OPEN ON GROUND IN JHM. (MX) DETERMINED APU CONTROL RELAY LEFT SIDE NOSE COMPARTMENT MALFUNCTIONED. MEL 49-1 CAT D. (MX) REMOVED & REPLACED RELAY 2449-K62 IAW DHC WD 24-33-03 SHEET 2 PG 1. REMOVED AN
- [SDR KPVA20073](https://openairdocs.org/sdr/KPVA20073.md): Warning System · malfunctioned · May 2, 2007 · N979HA · Dhav DHC8103 · Central Warning
  > (PIREP) WHILE ADVANCING POWER LEVERS FOR TAKEOFF, CONFIGURATION HORN SOUNDED. AIRCRAFT EXITED THE RUNWAY AND RECYCLED ALL SWITCHES FOR TAKEOFF. RECYCLING THE SWITCHES REMEDIED THE PROBLEM, TAXIED BACK FOR TAKEOFF AND COMPLETED THE FLIGHT WITHOUT INCIDENT.
- [SDR KPVA20072](https://openairdocs.org/sdr/KPVA20072.md): Hmu · malfunctioned · Feb 14, 2007 · N979HA · Dhav DHC8103 · Fuel Controlling System
  > NR 1 ENGINE FAILED TO PRODUCE SUFFICIENT POWER ON THE TAKEOFF ROLL. REMOVE AND REPLACED NR 1 ENGINE HMU IAW PRATT & WHITNEY MM CHAPTER 72, 72-01-40 PAR 5. OPERATIONAL AND LEAK CHECK GOOD.
- [SDR PCAA0309105](https://openairdocs.org/sdr/PCAA0309105.md): Line · broken · Sep 5, 2003 · N979HA · Dhav DHC8102 · Hydraulic System, Main
  > WHILE ON DEICING PAD CREW REPORTED THAT A HYDRAULIC LINE WAS LEAKING IN THE CABIN AT SEATS 5DF AND 6DF. EMERGENCY WAS DECLARED. FLIGHT ATTENDANT AND ONE PASSENGER WERE TAKEN TO HOSPITAL DUE TO AFFECT OF HYDRAULIC FLUID IN THE CABIN. MAINTENANCE REPLACED A H
- [SDR PCAA0304068](https://openairdocs.org/sdr/PCAA0304068.md): Wire · damaged · Apr 24, 2003 · N979HA · Dhav DHC8102 · Light System Wiring
  > DURING ROUTINE MAINTENANCE VISIT FLOOR STRIP EMERGENCY LIGHT SYSTEMS LAST SEGMENT UNDER ROW 9 WOULD NOT ILLUMINATE. WIRE WAS REPAIRED REFERENCING ADVISORY CIRCULAR 43-13. AIRCRAFT WAS RETURNED TO SERVICE.
- [SDR PCAA0304064](https://openairdocs.org/sdr/PCAA0304064.md): Line · severed · Apr 4, 2003 · N979HA · Dhav DHC8102 · Hydraulic System, Main
  > LGA-FLIGHT 3960 CREW REPORTED LOSS OF NR 1 HYDRAULIC FLUID IN FLIGHT. ISOLATION LIGHT ILLUMINATED. HYDRAULIC CONTENTS AT.5 QUARTS. NR 1 HYDRAULIC PUMP CAUTION LIGHT ALSO ILLUMINATED, BUT PRESSURE REMAINED NORMAL. EMERGENCY WAS DECLARED. FLIGHT LANDED WIT
- [SDR PCAA0303061](https://openairdocs.org/sdr/PCAA0303061.md): Warning Light · illuminated · Mar 27, 2003 · N979HA · Dhav DHC8102 · Hydraulic Indicating System
  > LGA-YUL. FLIGHT 3978 CREW REPORTED THAT THE NR 1 HYDRAULIC ISOLATION VALVE AND INBOARD ROLL SPOILER LIGHTS HAD ILLUMINATED IN FLIGHT. AFTER FLAP UP LANDING IN YUL NORMAL BRAKING SYSTEM HAD FAILED. MAINTENANCE HAD INSPECTED THE AIRCRAFT FOR HYDRAULIC LEAKS AN
- [SDR PCAA0303048](https://openairdocs.org/sdr/PCAA0303048.md): Warning Light · false indication · Mar 3, 2003 · N979HA · Dhav DHC8102 · Hydraulic System, Main
  > PIT-FLIGHT 3890 CREW REPORTED NR 1 HYDRAULIC ISOLATION VALVE CAUTION LIGHT ILLUMINATED IN FLIGHT AND PARTIAL LOSS OF HYDRAULIC FLUID. HYDRAULIC FLUID OBSERVED ON NR 2 ENGINE. MAINTENANCE SERVICED NR 1 AND NR 2 HYDRAULIC RESERVOIRS AND INSPECTED AREA. FLUID
- [SDR PCAA0301022](https://openairdocs.org/sdr/PCAA0301022.md): Line · broken · Jan 24, 2003 · N979HA · Dhav DHC8102 · Hydraulic System, Main
  > ALB-DCA FLIGHT 3922 CREW REPORTED HYDRAULIC CONTENTS ON NR 1 SYSTEM BELOW 1.5 QUARTS AND DROPPING. FLIGHT DIVERTED TO MDT FOR REPAIRS. MAINTENANCE FOUND A BROKEN LINE AT THE LANDING GEAR SELECTOR VALVE. LINE WAS REPLACED. FUNCTION AND LEAK CHECK GOOD. AIR
- [SDR PCAA0209100](https://openairdocs.org/sdr/PCAA0209100.md): Battery Pack · weak · Sep 3, 2002 · N979HA · Dhav DHC8102 · Emergency Lighting
  > DURING ROUTINE MAINTENANCE VISIT RIGHT FORWARD EXTERIOR EMERGENCY LIGHT AND SECOND CEILING EMERGENCY LIGHT FOUND INOPERATIVE. POSITION #2 EMERGENCY LIGHT BATTERY PACK REPLACED. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR HNAA0100008](https://openairdocs.org/sdr/HNAA0100008.md): Oil Cooler · dirty · Jan 24, 2001 · N979HA · Dhav DHC8102 · Engine Oil Cooler
  > NR 2 ENGINE OIL GAUGE FLUCTUATING BETWEEN 55 PSI TO 45 PSI, NEVER BELOW 40. COMPLIED WITH ABNORMAL OIL PRESSURE CHECKLIST. REMOVED AND REPLACED OIL COOLER.
- [SDR HNAA0000008](https://openairdocs.org/sdr/HNAA0000008.md): Battery · discharged · Jan 17, 2000 · N979HA · Dhav DHC8102 · Emergency Lighting
  > BEFORE THE FIRST FLIGHT OF THE MORNING SEVERAL EMERGENCY LIGHTS WERE FOUND TO BE INOP. REPLACED ALL EMERGENCY LIGHT BATTERY PACKS.
- [SDR HNAA9697944](https://openairdocs.org/sdr/HNAA9697944.md): Gear Pin · not stowed · Jun 26, 1996 · N979HA · Dhav DHC8102 · Landing Gear Retraction/Extension System
  > FLT NR 3243 - TPA-FLL - AFTER TAKEOFF, THE NOSE GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO TPA AND LANDED WITHOUT INCIDENT. FOUND NOSE GEAR PIN NOT STOWED, RESTOWED PIN. AT RON, INSPECTED NOSE GEAR GROUND LOCK, LUBRICATED AND CHECKED FOR PROPER OPERAT
- [SDR HNAA9697918](https://openairdocs.org/sdr/HNAA9697918.md): O-Ring · cracked · Mar 19, 1996 · N979HA · Dhav DHC8102 · Turbine Section
  > FLT 3340 - DCA-HPN - DURING DESCENT INTO HPN WITH LOW POWER SETTING, THE CABIN BEGAN TO FILL WITH SMOKE. CYCLED EACH BLEED OFF AND RAISED CABIN ALTITUDE TO REMOVE SMOKE. THE AIRCRAFT LANDED IN HPN WITHOUT INCIDENT. REMOVED AND REPLACED THE P2.5 AIR SWITCHIN
- [SDR 96ZZZM667](https://openairdocs.org/sdr/96ZZZM667.md): Engine · malfunctioned · Mar 10, 1996 · N979HA · Dhav DHC8102 · Engine (Turbine/Turboprop)
  > FLT NR 3340 - DCA-HPN - DURING DESCENT INTO HPN WITH LOW POWER SETTING, THE CABIN BEGAN TO FILL WITH SMOKE. CYCLED EACH BLEED OFF AND RAISED CABIN ALTITUDE TO REMOVE SMOKE. THE AIRCRAFT LANDED IN HPN WITHOUT INCIDENT. REMOVED AND REPLACED THE P2.5 AIR SWITCH
- [SDR HNAA9597930](https://openairdocs.org/sdr/HNAA9597930.md): Connector · loose · Dec 31, 1995 · N979HA · Dhav DHC8102 · Emergency Lighting
  > RDU/BWI - FLT 3345 - DURING PREFLIGHT WALKAROUND, FOUND THE EMERGENCY EXIT LIGHT OVER THE PASSENGER DOOR INOPERATIVE. SECURED A LOOSE PIN ON THE CONNECTOR. (X)
- [SDR 95ZZZM246](https://openairdocs.org/sdr/95ZZZM246.md): Relay · failed · Jul 18, 1995 · N979HA · Dhav DHC8102 · Propeller Indication System
  > FLT NR 3236 - LYH-DCA - WHILE PERFORMING AUTOFEATHER TEST ON PREFLIGHT CHECK, THE NR 1 TORQUE INDICATOR DOES NOT INCREASE WHEN 'TEST' SWITCH IS SELECTED. CLEANED THE 7700-P3 CONNECTOR AND REMOVED AND REPLACED THE 6121-K3 RELAY AS A PRECAUTION.
- [SDR 95ZZZX3541](https://openairdocs.org/sdr/95ZZZX3541.md): Switch · out of adjust · May 6, 1995 · N979HA · Dhav DHC8102 · Engine Controls
  > EWN/CLT - FLT 3239 - DURING TAKEOFF ROLL, THE ROLL SPOILER GROUND MODE CAUTION LIGHTS ILLUMINATED. CREW ABORTED TAKEOFF WITHOUT INCIDENT. MEL 27-8. AT RON, ADJUSTED NR 1 POWER LEVER ANGLE WITH 2761-S1 AND CLEANED, LUBED AND ADJUSTED NR 2 POWER LEVER ANGLE W

## 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 = 'N979HA' AND deregistration_id = 'N979HA-2017-05-12'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N979HA-2017-05-12/reports

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