# Service difficulty reports: N639MC

A list on [N639MC](https://openairdocs.org/aircraft/N639MC.md).

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

- [SDR AC2A2022061313901](https://openairdocs.org/sdr/AC2A2022061313901.md): Smoke Detector · intermittent · Jun 12, 2022 · N639MC · Agusta AW139 · Fire Detection
  > PILOT'S REPORT - DESCRIPTION: N639MC DISPATCH ON A NORMAL PASSENGER FLIGHT TO CONQUEROR AND ROWAN WITH 5 PAX ONBOARD. AFTER NORMAL RUNUP AND RELEASE FOR ATC, DEPARTED TAXIWAY A TO THE NORTH WITH A CLIMBING RIGHT TURN TO OUR ON COURSE HEADING. NEW ORLEANS AT
- [SDR AC2A2021102913901](https://openairdocs.org/sdr/AC2A2021102913901.md): Actuator · stuck · Oct 28, 2021 · N639MC · Agusta AW139 · Main Rotor Brake
  > ROTOR BRAKE INOP, FOUND ROTOR BRAKE ACTUATOR WILL NOT ACTUATE (STUCK)
- [SDR AC2A20210221002](https://openairdocs.org/sdr/AC2A20210221002.md): Indicator · cracked · Feb 20, 2021 · N639MC · Agusta AW139 · Engine Air Intake System
  > INLET BARRIER FILTER MAINTENANCE INDICATOR AID FOUND CRACKED DURING INSPECTION.
- [SDR AC2A20210221001](https://openairdocs.org/sdr/AC2A20210221001.md): Indicator · cracked · Feb 20, 2021 · N639MC · Agusta AW139 · Engine Air Intake System
  > INLET BARRIER FILTER MAINTENANCE INDICATOR AID FOUND CRACKED DURING INSPECTION.
- [SDR AC2A2020050113918](https://openairdocs.org/sdr/AC2A2020050113918.md): Filter · cracked · Jan 26, 2020 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND CRACKED.
- [SDR AC2A2020050113917](https://openairdocs.org/sdr/AC2A2020050113917.md): Filter · cracked · Jan 26, 2020 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND CRACKED.
- [SDR AC2A2020032313905](https://openairdocs.org/sdr/AC2A2020032313905.md): Pressure Switch · leaking · Sep 7, 2019 · N639MC · Agusta AW139 · Landing Gear Brake System
  > HYDRAULIC FLUID LEAKING FROM VENT HOLE.
- [SDR AC2A2020032313904](https://openairdocs.org/sdr/AC2A2020032313904.md): Pressure Switch · leaking · Sep 7, 2019 · N639MC · Agusta AW139 · Landing Gear Brake System
  > HYDRAULIC FLUID LEAKING FROM VENT HOLE.
- [SDR AC2A2020032313903](https://openairdocs.org/sdr/AC2A2020032313903.md): Pressure Switch · leaking · Sep 7, 2019 · N639MC · Agusta AW139 · Landing Gear System
  > HYDRAULIC FLUID LEAKING FROM VENT HOLE.
- [SDR AC2A2020050113915](https://openairdocs.org/sdr/AC2A2020050113915.md): Filter · cracked · Aug 4, 2019 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113914](https://openairdocs.org/sdr/AC2A2020050113914.md): Filter · cracked · Aug 4, 2019 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113907](https://openairdocs.org/sdr/AC2A2020050113907.md): Filter · cracked · Oct 23, 2018 · N639MC · Agusta AW139 · Engine Air Intake System
  > IBF MAINTENANCE AID FOUND TO BE CRACKED.
- [SDR AC2A2020050113901](https://openairdocs.org/sdr/AC2A2020050113901.md): Indicator · cracked · Dec 15, 2017 · N639MC · Agusta AW139 · Powerplant System
  > IBF MAINTENANCE INDICATOR FOUND TO BE CRACKED.
- [SDR AC2R2016050901](https://openairdocs.org/sdr/AC2R2016050901.md): Rod End · scored · May 9, 2016 · N639MC · Agusta AW139 · Main Rotor Head
  > ROD END HAS POSSIBLE CRACK. DISCOVERED WHILE PERFORMING BT139-450. ROD END WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.
- [SDR AC2R2018042003](https://openairdocs.org/sdr/AC2R2018042003.md): Bearing · lack of lube · Mar 7, 2016 · N639MC · Agusta AW139 · Main Rotor Gearbox
  > REMOVE OIL COOLER FAN FOR DRY BEARING.
- [SDR AC2R2016032901](https://openairdocs.org/sdr/AC2R2016032901.md): Fitting · galled · Mar 7, 2016 · N639MC · Agusta AW139 · Main Rotor Transmission Mount
  > WHILE PERFORMING THE MGB BOLT INSPECTION ON THE LT LOWER FITTING, WE REMOVED THE COTTER PIN AND REMOVED THE NUT FROM THE FWD BOLT. WE ENSURED THE BOLT SPUN FREELY BEFORE WE ATTEMPTED TO REMOVE THE BOLT, WHICH IT DID BY HAND. THE BOLT EASILY REMOVED UPWARD UN

## 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 = 'N639MC' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N639MC/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.