# N310PQ: 2014 Bombardier CL-600-2D24

- Status: Valid registration
- Airframe: [Bombardier CL-600-2D24](https://openairdocs.org/model/bombardier-cl-600-2d24) (registry code 1390016, 95 seats)
- Engine: [GE CF34-8C5](https://openairdocs.org/engine/ge-cf34-8c5) (registry code 30050)
- Data sheets: [TCDS A21EA-1](https://openairdocs.org/tcds/A21EA-1) (MHI RJ Aviation ULC), [TCDS E00063EN](https://openairdocs.org/tcds/E00063EN) (General Electric Company GE Aerospace) (OpenAirDocs)
- Serial number: 15310
- Year built: 2014
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 3, 2014
- Certificate issued: April 3, 2014
- Expires: April 30, 2027
- Mode S code: A34825
- Registered owner: [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC)
- Location: [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta)
- Owner type: Corporation
- Owner's area on the map: 33.6604° N, 84.3865° W: Placed by OpenAirDocs at the center of ZIP code 30354, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=310PQ
- Page: https://openairdocs.org/aircraft/N310PQ

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 130 in force

### Matched by airframe (Bombardier CL-600-2D24)

- [AD 2026-15-16](https://openairdocs.org/ad/2026-15-16): Time Limits/Maintenance Checks · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Sep 3, 2026
- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2026-08-02](https://openairdocs.org/ad/2026-08-02): Stabilizers · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective May 26, 2026
- [AD 2026-05-05](https://openairdocs.org/ad/2026-05-05): Flight controls · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Mar 23, 2026
- [AD 2026-02-03](https://openairdocs.org/ad/2026-02-03): Flight control · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Feb 5, 2026
- [AD 2025-25-03](https://openairdocs.org/ad/2025-25-03): Time Limits/Maintenance Checks · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Jan 16, 2026
- [AD 2025-13-04](https://openairdocs.org/ad/2025-13-04): Flight Controls · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Aug 5, 2025
- [AD 2025-11-11](https://openairdocs.org/ad/2025-11-11): Time Limits/Maintenance Checks · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Jul 15, 2025
- [AD 2025-09-09](https://openairdocs.org/ad/2025-09-09): Communications · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Jun 18, 2025
- [AD 2025-04-08](https://openairdocs.org/ad/2025-04-08): Navigation · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Apr 25, 2025
- [AD 2024-16-08](https://openairdocs.org/ad/2024-16-08): Equipment/furnishings · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Oct 23, 2024
- [AD 2024-14-01](https://openairdocs.org/ad/2024-14-01): Oxygen · MHI RJ Aviation ULC CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900). Effective Sep 25, 2024
- [AD 2024-13-07](https://openairdocs.org/ad/2024-13-07): Electrical power · MHI RJ Aviation ULC CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900). Effective Sep 25, 2024
- [AD 2024-07-08](https://openairdocs.org/ad/2024-07-08): Fuselage · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Jun 5, 2024
- [AD 2024-03-02](https://openairdocs.org/ad/2024-03-02): Time Limits/Maintenance Checks · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Apr 9, 2024
- [AD 2023-25-01](https://openairdocs.org/ad/2023-25-01): Equipment/Furnishings · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Feb 6, 2024
- [AD 2023-24-03](https://openairdocs.org/ad/2023-24-03): Fire Protection · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Jan 22, 2024
- [AD 2023-19-08](https://openairdocs.org/ad/2023-19-08): Fire Protection · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Nov 9, 2023
- [AD 2023-10-03](https://openairdocs.org/ad/2023-10-03): Fire Protection · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Jul 11, 2023
- [AD 2023-09-02](https://openairdocs.org/ad/2023-09-02): Fire Protection · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Jun 26, 2023
- [AD 2023-07-07](https://openairdocs.org/ad/2023-07-07): Pneumatic · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Jun 20, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-06-06](https://openairdocs.org/ad/2023-06-06): Air conditioning · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Apr 28, 2023
- [AD 2022-20-03](https://openairdocs.org/ad/2022-20-03): Oxygen · MHI RJ Aviation ULC CL-600-2C11 (Regional Jet Series 550), CL-600-2C10 (Regional Jet Series 702), CL-600-2C10 (Regional Jet Series 701) and 4 more. Effective Apr 14, 2023
- [AD 2022-24-10](https://openairdocs.org/ad/2022-24-10): Fire protection · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Jan 18, 2023
- [AD 2022-21-10](https://openairdocs.org/ad/2022-21-10): Landing gear · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Dec 21, 2022
- [AD 2022-18-15](https://openairdocs.org/ad/2022-18-15): Fuel · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Nov 25, 2022
- [AD 2022-12-03](https://openairdocs.org/ad/2022-12-03): Navigation System · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Nov 3, 2022
- [AD 2022-18-17](https://openairdocs.org/ad/2022-18-17): Wings · MHI RJ Aviation ULC CL-600-2D24 (Regional Jet Series 900). Effective Oct 11, 2022
- [AD 2022-13-02](https://openairdocs.org/ad/2022-13-02): Fuel system · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Aug 31, 2022
- [AD 2021-22-24](https://openairdocs.org/ad/2021-22-24): Periodic Inspections · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Dec 29, 2021
- [AD 2021-19-12](https://openairdocs.org/ad/2021-19-12): Landing Gear · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Nov 10, 2021
- [AD 2021-13-11](https://openairdocs.org/ad/2021-13-11): Fuselage · MHI RJ Aviation ULC CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900). Effective Sep 3, 2021
- [AD 2021-11-02](https://openairdocs.org/ad/2021-11-02): Auto Flight · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Jul 13, 2021
- [AD 2021-08-03](https://openairdocs.org/ad/2021-08-03): Rain and Ice Protection · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective May 25, 2021
- [AD 2021-07-10](https://openairdocs.org/ad/2021-07-10): Ice and Rain Protection · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective May 12, 2021
- [AD 2020-17-15](https://openairdocs.org/ad/2020-17-15): Navigation · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Nov 3, 2020
- [AD 2020-08-13](https://openairdocs.org/ad/2020-08-13): Flight controls · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 5 more. Effective Jun 10, 2020
- [AD 2020-03-17](https://openairdocs.org/ad/2020-03-17): Equipment/Furnishings · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 5 more. Effective Apr 2, 2020
- [AD 2019-26-10](https://openairdocs.org/ad/2019-26-10): Equipment/furnishings · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Mar 19, 2020
- [AD 2019-19-08](https://openairdocs.org/ad/2019-19-08): Flight controls · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 5 more. Effective Dec 17, 2019
- [AD 2019-17-07](https://openairdocs.org/ad/2019-17-07): Oxygen · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Oct 17, 2019
- [AD 2019-12-08](https://openairdocs.org/ad/2019-12-08): Fuselage · Bombardier CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900) and CL-600-2E25 (Regional Jet Series 1000). Effective Aug 12, 2019
- [AD 2019-12-03](https://openairdocs.org/ad/2019-12-03): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Aug 7, 2019
- [AD 2019-05-12](https://openairdocs.org/ad/2019-05-12): Landing Gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective May 3, 2019
- [AD 2018-22-12](https://openairdocs.org/ad/2018-22-12): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Dec 12, 2018
- [AD 2018-20-17](https://openairdocs.org/ad/2018-20-17): Wings · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Nov 20, 2018
- [AD 2018-19-12](https://openairdocs.org/ad/2018-19-12): Flight Controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Oct 31, 2018
- [AD 2018-14-03](https://openairdocs.org/ad/2018-14-03): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Aug 13, 2018
- [AD 2018-11-12](https://openairdocs.org/ad/2018-11-12): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Jul 12, 2018

### Matched by engine (GE CF34-8C5)

- [AD 2026-21-11](https://openairdocs.org/ad/2026-21-11): Turbine Engine Compressor Section · General Electric Company GE Aerospace CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Nov 27, 2026
- [AD 2025-12-08](https://openairdocs.org/ad/2025-12-08): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Jul 23, 2025
- [AD 2023-02-05](https://openairdocs.org/ad/2023-02-05): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 9 more. Effective Mar 14, 2023
- [AD 2022-21-06](https://openairdocs.org/ad/2022-21-06): Turbine Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Nov 15, 2022
- [AD 2022-09-14](https://openairdocs.org/ad/2022-09-14): Compressor Bleed Valve · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Jun 24, 2022
- [AD 2022-08-06](https://openairdocs.org/ad/2022-08-06): Turbine Engine Compression Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Apr 29, 2022
- [AD 2021-26-19](https://openairdocs.org/ad/2021-26-19): Turbine Section · General Electric CF34-8C5, CF34-8C5B1, CF34-8E2 and 6 more. Effective Jan 25, 2022
- [AD 2021-23-51](https://openairdocs.org/ad/2021-23-51): Turbine Engine Compression Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Dec 29, 2021
- [AD 2021-18-13](https://openairdocs.org/ad/2021-18-13): Turbine Engine Combustion Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Oct 22, 2021
- [AD 2017-17-18](https://openairdocs.org/ad/2017-17-18): Turbine Engine Compressor Section · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective Oct 6, 2017
- [AD 2013-06-06](https://openairdocs.org/ad/2013-06-06): Operability bleed valves (OBV) · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 10 more. Effective May 8, 2013
- [AD 2008-05-01](https://openairdocs.org/ad/2008-05-01): Fuel metering units (FMU) · General Electric CF34-10E2A1, CF34-10E5, CF34-10E5A1 and 8 more. Effective Apr 3, 2008
- [AD 2005-07-06](https://openairdocs.org/ad/2005-07-06): Master variable geometry (VG) actuators · General Electric CF34-8C1 and CF34-8C5. Effective Apr 15, 2005

### Historical (superseded or no longer in force)

- [AD 2025-22-02](https://openairdocs.org/ad/2025-22-02) (historical): Stabilizers · MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 4 more. Effective Nov 20, 2025
- [AD 2023-23-02](https://openairdocs.org/ad/2023-23-02) (historical): Flight controls · MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 6 more. Effective Jan 18, 2024
- [AD 2019-22-07](https://openairdocs.org/ad/2019-22-07) (historical): Auto flight · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 5 more. Effective Feb 10, 2020
- [AD 2016-11-02](https://openairdocs.org/ad/2016-11-02) (historical): Nacelles/Pylons · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Jun 10, 2016
- [AD 2016-08-05](https://openairdocs.org/ad/2016-08-05) (historical): Flight Controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective May 18, 2016
- [AD 2015-24-04](https://openairdocs.org/ad/2015-24-04) (historical): Equipment/Furnishings · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 5 more. Effective Dec 15, 2015
- [AD 2015-17-04](https://openairdocs.org/ad/2015-17-04) (historical): Flight Controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Sep 24, 2015
- [AD 2014-02-01](https://openairdocs.org/ad/2014-02-01) (historical): Flight controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Mar 14, 2014
- [AD 2013-16-08](https://openairdocs.org/ad/2013-16-08) (historical): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Sep 24, 2013
- [AD 2012-22-10](https://openairdocs.org/ad/2012-22-10) (historical): Fuselage · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 3 more. Effective Dec 14, 2012
- [AD 2011-21-07](https://openairdocs.org/ad/2011-21-07) (historical): Navigation · Bombardier CL-600-2B19 (Regional Jet Series 100), CL-600-2B19 (Regional Jet Series 440), CL-600-2C10 (Regional Jet Series 700) and 4 more. Effective Nov 23, 2011
- [AD 2011-08-04](https://openairdocs.org/ad/2011-08-04) (historical): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective May 18, 2011
- [AD 2011-03-13](https://openairdocs.org/ad/2011-03-13) (historical): Flight controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Mar 14, 2011
- [AD 2010-23-19](https://openairdocs.org/ad/2010-23-19) (historical): Landing gear · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Nov 24, 2010
- [AD 2009-22-12](https://openairdocs.org/ad/2009-22-12) (historical): Flight Controls · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Nov 13, 2009
- [AD 2009-06-18](https://openairdocs.org/ad/2009-06-18) (historical): Air-Driven generator (ADGs) · Bombardier CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702), CL-600-2D15 (Regional Jet Series 705) and 1 more. Effective Apr 30, 2009
- [AD 2008-09-23](https://openairdocs.org/ad/2008-09-23) (historical): Critical Design Configuration Control Limitations (CDCCL) · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Jun 6, 2008
- [AD 2008-06-01](https://openairdocs.org/ad/2008-06-01) (historical): Fuel tank wiring · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Apr 16, 2008
- [AD 2006-14-05](https://openairdocs.org/ad/2006-14-05) (historical): Lower panel of the left- and right-hand main landing gear (MLG) doors · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701), CL-600-2C10 (Regional Jet Series 702) and 2 more. Effective Aug 15, 2006
- [AD 2005-13-02](https://openairdocs.org/ad/2005-13-02) (historical): Number 1 and Number 2 hydraulic system · Bombardier CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701) and CL-600-2D24 (Regional Jet Series 900). Effective Jul 27, 2005
- [AD 2004-07-01](https://openairdocs.org/ad/2004-07-01) (historical): AFM - Abnormal Procedures · Bombardier Aerospace CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701) and CL-600-2D24 (Regional Jet Series 900). Effective Apr 15, 2004
- [AD 2003-19-51](https://openairdocs.org/ad/2003-19-51) (historical): Main landing gear (MLG) · Bombardier Aerospace CL-600-2C10 (Regional Jet Series 700), CL-600-2C10 (Regional Jet Series 701) and CL-600-2D24 (Regional Jet Series 900). Effective Nov 3, 2003
- [AD 2019-22-05](https://openairdocs.org/ad/2019-22-05) (historical): Compressor bleed governor · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 3 more. Effective Dec 23, 2019
- [AD 2017-23-06](https://openairdocs.org/ad/2017-23-06) (historical): Compressor bleed governor · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 1 more. Effective Nov 30, 2017
- [AD 2003-26-05](https://openairdocs.org/ad/2003-26-05) (historical): Master Variable Geometry (VG) Actuators · General Electric CF34-8C1, CF34-8C5, CF34-8C5A1 and 3 more. Effective Jan 20, 2004

All 155: https://openairdocs.org/aircraft/N310PQ/ads.md

## Information bulletins (advisory) (4 in force)

- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019
- [SAIB NM-09-06](https://openairdocs.org/saib/NM-09-06): Landing gear: Inspect body fairing seal common to the main landing gear (MLG) inboard doors. Issued Jan 28, 2009
- [SAIB NM-09-03](https://openairdocs.org/saib/NM-09-03): Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations. Issued Dec 11, 2008
- [SAIB NM-07-11](https://openairdocs.org/saib/NM-07-11): Brake System Accumulators. Issued Nov 24, 2006

## NTSB investigations

None matched to N310PQ.

## FAA accident and incident reports

None matched to N310PQ.

## Service difficulty reports (27)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR REXA2024072200564](https://openairdocs.org/sdr/REXA2024072200564), Jul 19, 2024: FLOORBEAM. CORRODED. FS.280.00 RH CROSSBEAM IS CORRODED. REMOVED AND REPLACED RH FS 280.00 CROSSBEAM P/N: CC670-34094-6S, IAW CRJ-900 SRM 51-42-06-001-001-A01, 51-42-21-001-001-A01 
- [SDR REXA2024072200562](https://openairdocs.org/sdr/REXA2024072200562), Jul 19, 2024: FLOORBEAM. CORRODED. FS.280.00 LH CROSSBEAM IS CORRODED. REMOVED AND REPLACED LH FS 280.00 CROSSBEAM P/N: CC670-34094-1S, IAW CRJ-900 SRM 51-42-06-001-001-A01, 51-42-13-001-001-A01 
- [SDR REXA2024073000597](https://openairdocs.org/sdr/REXA2024073000597), Jul 14, 2024: FLOORBEAM. CRACKED. CRACKED LH FS 280 COCKPIT FLOOR BEAM AT LBL 12.50. COMPLIED WITH REO NO. 690-53-11-1805. DATED: 2024-07-15. REV --
- [SDR REXA2024073100602](https://openairdocs.org/sdr/REXA2024073100602), Jul 11, 2024: FORMER. CRACKED. RH AFT EMERGENCY EXIT DOOR (SB1419) UPPER FORMER IS CRACKED AT LUG REPAIRED IAW ENDEAVOR AIR EA NO: CRJ953-16969 DATED 7/16/2024 REV (IR).
- [SDR REXA2024073100601](https://openairdocs.org/sdr/REXA2024073100601), Jul 11, 2024: FORMER. CRACKED. RH FWD EMERGENCY EXIT DOOR (SB1422) UPPER FORMER IS CRACKED AT LUG REPAIRED IAW ENDEAVOR AIR EA NO: CRJ953-16968 DATED 7/16/2024 REV (IR).
- [SDR REXA2024073100600](https://openairdocs.org/sdr/REXA2024073100600), Jul 11, 2024: FORMER. CRACKED. LH AFT EMERGENCY EXIT DOOR (SB1421) UPPER FORMER IS CRACKED AT LUG REPAIRED IAW ENDEAVOR AIR EA NO: CRJ953-16967 DATED 7/16/2024 REV (IR).
- [SDR REXA2024073100599](https://openairdocs.org/sdr/REXA2024073100599), Jul 11, 2024: FORMER. CRACKED. LH FWD EMERGENCY EXIT DOOR (SB1420) UPPER FORMER IS CRACKED AT LUG REPAIRED IAW ENDEAVOR AIR EA NO: CRJ952-16966 DATED 7/16/2024 REV (IR).
- [SDR REXA2021012000017](https://openairdocs.org/sdr/REXA2021012000017), Jan 9, 2021: SEAT TRACK. CORRODED. CORROSION FOUND ON SEAT TRACK RBL 9.0 BETWEEN FS 349-FS 359. UNDER LYING STRUCTURE WILL REQUIRE CORROSION INSPECTION ONCE SEAT TRACK IS REMOVED. REMOVED & INSTA
- [SDR REXA2021012000014](https://openairdocs.org/sdr/REXA2021012000014), Jan 8, 2021: PLATE. CORRODED. AFT CARGO DOOR CUTOUT SILL PLATE CORRODED FROM FS 1000.00 TO FS 1047.00. REMOVED & INSTALLED SERVICEABLE LOWER SILL AT THE AFT CARGO DOOR CUTOUT BETWEEN FS 1000
- [SDR REXA2021012000018](https://openairdocs.org/sdr/REXA2021012000018), Jan 4, 2021: STRINGER. CORRODED. STRINGER 20R IS CORRODED FWD OF FS 349. COMPLIED WITH ENDEAVOR EA CRJ953-11101 REV IR.
- [SDR REXA2021012000020](https://openairdocs.org/sdr/REXA2021012000020), Jan 3, 2021: HOUSING. CRACKED. FOUND MAIN AVIONICS DOOR HANDLE HOUSING HAS MULTIPLE INDICATIONS NOTED FWD SIDE HANDLE SHAFT .400 LONG 80% FSH FAILED NDT INSPECTION. INSTALLED FWD AVIONICS SER
- [SDR REXA2021012000015](https://openairdocs.org/sdr/REXA2021012000015), Jan 3, 2021: INTERCOSTAL. CORRODED. INTERCOSTAL IS CORRODED AT STR 19R BETWEEN FS 319 AND 349. REPLACED INTERCOSTAL, IAW CRJ 900 SRM 51-42-21-001-001-A01.
- [SDR REXA2021012000019](https://openairdocs.org/sdr/REXA2021012000019), Dec 27, 2020: ANGLE. CORRODED. FS 280 FWD FLOOR SUPPORT ANGLE IS CORRODED AROUND ALL NUTPLATES BETWEEN LBL 9.0 AND RBL 9.0. REMOVED & REPLAED FS 280 J ANGLE, IAW SRM 51-40-11-001-001-A01 & 51
- [SDR REXA2021012000016](https://openairdocs.org/sdr/REXA2021012000016), Dec 27, 2020: DOOR FRAME. CORRODED. AFT CARGO DOOR SURROUND STRUCTURE AFT FRAMED (FS 1047) CAP/ANGLE IS CORRODED. REMOVED AND REPLACED AFT CARGO DOOR SURROUND STRUCTURE AFT FRAME CAP ANGLE, IAW CR
- [SDR REXA2020091600646](https://openairdocs.org/sdr/REXA2020091600646), Sep 1, 2020: BATTERY. WEAK. EMERGENCY BATTERY NR 3 NOT HOLDING CHARGE. REPLACED BATTERY, IAW CRJ-900 AMM 33-51-17. OPERATIONAL CHECK GOOD, IAW CRJ-900 AMM 33-51-17.
- [SDR REXA2017123001302](https://openairdocs.org/sdr/REXA2017123001302), Dec 30, 2017: LIGHT. MISSING. THE EMERGENCY LIGHT STRIP IS MISSING AT THE ENTANCE TO CABIN ON THE LEFT SIDE, IN FRONT OF GALLEY CART. REPLACED THE EMERGENCY LIGHT IAW 33-51-01. NO FURTHER DE
- [SDR REXA2017111301177](https://openairdocs.org/sdr/REXA2017111301177), Nov 13, 2017: WIRE. OPEN. EMER LIGHT SWITCH IN GALLEY WILL NOT TURN EMER LIGHT ON. REMOVE & REPLACED EMERG & FA EMERG TOGGLE SWITCHES AS PER ESPM 20-45-51, R&R RELAY K198 P/N:M83536/17-0
- [SDR REXA2017052000612](https://openairdocs.org/sdr/REXA2017052000612), May 20, 2017: PBE. UNSERVICEABLE. FLIGHT DECK PBE HAS LOST IT'S VACUUM SEAL. REMOVED AND REPLACED FLT DECK PBE IAW JOBCARD 900-25-900-902.
- [SDR REXA2017041300535](https://openairdocs.org/sdr/REXA2017041300535), Apr 13, 2017: DOOR SILL. CORRODED. RT FLOOR SILL CORRODED AFT SIDE OF STA 280 BEAM, RBL 43. REMOVED AND REPLACED R/H FLOOR SILL IAW SRMS 51-42-06, 51-42-13, 51-42-21, 53-00-45 TR 53-0080, 100% MA
- [SDR REXA2017041300534](https://openairdocs.org/sdr/REXA2017041300534), Apr 13, 2017: STEP. CORRODED. PAX DOOR AFT SIDE 3RD STEP FROM THE TOP LOCWER CORNER AREA IS CRACKED. REMOVED DAMAGE AND REPAIRED AREA IAW SRM TR 52-0025.
- [SDR REXA2017041300531](https://openairdocs.org/sdr/REXA2017041300531), Apr 13, 2017: FLOORBEAM. CORRODED. BS 280 FLOORBEAM ANGLE IN FLT DECK HAS AREAS OF CORROSION BETWEEN RBL 9 AND LBL 9. REMOVED AND REPLACED THE FLOORBEAM ANGLE IAW SRM 51-42-06, AND 51-42-21.
- [SDR REXA2017041200533](https://openairdocs.org/sdr/REXA2017041200533), Apr 12, 2017: STEP. CRACKED. PAX DOOR FWD SIDE 2ND STEP FROM THE TOP LOWER CORNER UNDER THE HANDRAIL SUPPORT AREA IS CRACKED A250-020. REPAIRED PAX DOOR FWD SIDE 2ND STEP TOP LOWER CORNER S
- [SDR REXA2017041100532](https://openairdocs.org/sdr/REXA2017041100532), Apr 11, 2017: HINGE. CRACKED. TOP STEP 832ET HINGE IS CRACKED. REMOVED AND REPLACED TOP STEP 832ET HINGE IAW SRM 51-40-11 AND SRM 51-42-02.
- [SDR REXA2017030700336](https://openairdocs.org/sdr/REXA2017030700336), Mar 7, 2017: OXYGEN MASK. UNWANTED DEPLOY. ROW 4CD OXYGEN MASK CAME FELL DOWN AFTER LANDING. STOWED THE OXYGEN MASKS AT 4CD IAW AMM 35-21-09. OPS CHECKED GOOD. VERIFIED OXYGEN GENERATOR WAS NOT USED.
- [SDR REXA2017030700335](https://openairdocs.org/sdr/REXA2017030700335), Mar 7, 2017: TAB. UNWANTED DEPLOY. AFTER TAKEOFF, RED TABS CAME DOWN OVERHEAD ON SEATS 17C/D AND 20C/D. RESET RED TABS FOR OXYGEN PANELS IAW AMM 35-20-00.
- [SDR REXA2016110502138](https://openairdocs.org/sdr/REXA2016110502138), Nov 5, 2016: SMOKE DETECTOR. MALFUNCTIONED. SMOKE DETECTORS IN FRONT & AFT LAVATORIES DURING PREFLIGHT WERE INOPERATIVE. PERFORM LAVATORY TEST OF SMOKE DETECTORS IAW AMM 26-16-00 , OPS CHECKED GOOD.
- [SDR REXA2015103100996](https://openairdocs.org/sdr/REXA2015103100996), Oct 31, 2015: ESCAPE HATCH. LACK OF LUBE. CREW ESCAPE HATCH LEAKS HEAVILY ON FIRST OFFICERS SEAT WHEN RAINING. LUBRICATED CREW ESCAPE HATCH, COMPLIED WITH JC 900-12-830-101. LEAK CHECKED GOOD.

## STCs that may be installed (OpenAirDocs) (139, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Bombardier CL-600-2D24)

- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems
- [STC ST12455IB](https://openairdocs.org/stc/ST12455IB): Cabin reconfiguration to add an extra row of business class seating and remove one row of economy seating. Airhawke Aérospatial Inc
- [STC ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc
- [STC ST12396IB](https://openairdocs.org/stc/ST12396IB): Installation of Laseref V Inertial Reference System. Avmax Aviation Services Inc
- [STC ST04790NY](https://openairdocs.org/stc/ST04790NY): Installation Bruce Cabin Lighting. Delta Engineering Corporation
- [STC ST00952LA](https://openairdocs.org/stc/ST00952LA): Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON LLC d/b/a MASS Systems
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [STC ST04812NY](https://openairdocs.org/stc/ST04812NY): Installation of Hughes Satellite Connectivity and Wifi Cabin Distribution System. ALOFT AeroArchitects
- [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST02721LA](https://openairdocs.org/stc/ST02721LA): Updates the aircraft recording system by installing a new SRVIVR25 Cockpit Voice Recorder (CVR) with Integrated Recorder Independent Power Supply (RIPS). Acron Aviation Inc
- [STC ST01415LA](https://openairdocs.org/stc/ST01415LA): Installation of a reinforced cockpit door. Safran Cabin Inc
- [STC ST01621LA](https://openairdocs.org/stc/ST01621LA): Installation of C&D Interiors Overhead Stowage Bin Installation, PSU Panel Installation, Ceiling Panel Installation, L/H Wardrobe Installation, Underbin Stowage Unit Installation, Passenger Seat & Track Cover. Safran Cabin Inc
- [STC ST01985LA-D](https://openairdocs.org/stc/ST01985LA-D): Modification and installation of stowage bins, class dividers, ceiling panels, passenger seats, passenger service units and filler panels, seat track covers, passenger floor coverings, floor proximity lighting strips, and seat row placards. Safran Cabin Inc
- [STC ST01999LA-D](https://openairdocs.org/stc/ST01999LA-D): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02004LA](https://openairdocs.org/stc/ST02004LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02383LA](https://openairdocs.org/stc/ST02383LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02398LA](https://openairdocs.org/stc/ST02398LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02400LA](https://openairdocs.org/stc/ST02400LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST02569LA](https://openairdocs.org/stc/ST02569LA): Interior Installations and Modifications. Safran Cabin Inc
- [STC ST04201AT](https://openairdocs.org/stc/ST04201AT): Installation of the Avionics Innovations DMP500 PRAM (Pre-Recorded Announcement Machine). Chippewa Aerospace Inc
- [STC ST04371AT](https://openairdocs.org/stc/ST04371AT): Installation of a Second (No. 2) Rockwell Collins Flight Management System (and Optional GPS). Chippewa Aerospace Inc
- [STC SA02358LA](https://openairdocs.org/stc/SA02358LA): Installation of Main Landing Gear Wire Harness Assemblies. NIACC Avitech Technologies
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST02811LA](https://openairdocs.org/stc/ST02811LA): Installation of six Rockwell Collins Electronic Flight Displays Model EFD-4076 upgraded with Light Emitting Diode display screen. Thomas Global Systems LLC
- [STC ST04796NY](https://openairdocs.org/stc/ST04796NY): Installation of Cabin Connectivity. Delta Engineering Corporation
- [STC ST00690DE](https://openairdocs.org/stc/ST00690DE): Installation of Electronic Cable Specialists, ECS EZMount Arm of Bombardier CL-600 Series Aircraft. Amphenol Cable and Interconnect Technologies Inc
- [STC ST02586AK](https://openairdocs.org/stc/ST02586AK): Approval of the Thomas Global Systems TFD-4000/4100 Active Matrix Liquid Crystal Display. ADS-B Technologies
- [STC ST01626LA](https://openairdocs.org/stc/ST01626LA): Installation of AirWorks Cockpit Door Surveillance Systems. Aero Technik Inc
- [STC ST02986NY](https://openairdocs.org/stc/ST02986NY): Installation of an Alternate Power Source (APS-01) for DC Service Bus. Securaplane Technologies Inc
- [STC ST01833WI](https://openairdocs.org/stc/ST01833WI): Modification of a Rockwell Collins Global Positioning System (GPS) installation. Rockwell Collins Inc
- [STC ST00215IB](https://openairdocs.org/stc/ST00215IB): Installation of saf-Tglo ECO Photoluminescent Aisle Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST03424CH](https://openairdocs.org/stc/ST03424CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC ST01012WI](https://openairdocs.org/stc/ST01012WI): Installation of an Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST00489IB](https://openairdocs.org/stc/ST00489IB): Modification and Installation of Lavatory Countertop, Toilet Shroud, Floor Pan, and Sink Light. GAL Aviation Inc
- [STC ST04839NY](https://openairdocs.org/stc/ST04839NY): Installation of LED Position/Anti-Collision Lights. Sterling Helicopter
- [STC ST04624CH](https://openairdocs.org/stc/ST04624CH): Installation of Astronics In-Seat Power System. Astronics Armstrong Aerospace
- [STC ST04562NY](https://openairdocs.org/stc/ST04562NY): Installation of saf-Tglo® SuperSeal UltraLite-X (SSUL-X) Photoluminescent Floor Proximity Emergency Escape Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST03034AT](https://openairdocs.org/stc/ST03034AT): Installation of the Honeywell Dual Laser Ref V Inertial Reference System (IRU’s). Chippewa Aerospace, Inc
- [STC ST00098IB](https://openairdocs.org/stc/ST00098IB): Introduction of ADS-B Out. STC Twenty One Limited
- [STC ST04399AT](https://openairdocs.org/stc/ST04399AT): Installation of the B/E Aerospace/EMTEQ LED Lights in the Lavatories. Woven Electronics LLC
- [STC ST03663AT](https://openairdocs.org/stc/ST03663AT): Installation of an Artex C406-2 Emergency Locator Transmitter (ELT). Woven Electronics LLC
- [STC ST01705SE](https://openairdocs.org/stc/ST01705SE): Installation of the ELDEC Battery Charger Part number 81-025-01 per Master Data List MDLST 81-025-01, Revision C, Release Date September 10, 2008 or later Federal Aviation Administration Approved Revisions. ELDEC Corporation
- [STC ST02293SE](https://openairdocs.org/stc/ST02293SE): Installation of a Crane Aerospace & Electronics Tire Sensor Assembly. ELDEC Aerospace Corp
- [STC ST04656NY](https://openairdocs.org/stc/ST04656NY): YC Seat Literature Pocket Modification must be installed. AKKA Groupe Amerque du Nord Inc
- [STC ST03422NY](https://openairdocs.org/stc/ST03422NY): Update of Intelsat components. Delta Engineering Corporation
- [STC ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services Inc

All 139: https://openairdocs.org/aircraft/N310PQ/stcs.md

## Related

- Other Bombardier CL-600-2D24 aircraft: https://openairdocs.org/model/bombardier-cl-600-2d24/aircraft.md
- The GE CF34-8C5 engine: https://openairdocs.org/engine/ge-cf34-8c5.md

---
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.
