# N844SY: 2014 Boeing 737-8K5

- Status: Valid registration
- Airframe: [Boeing 737-8K5](https://openairdocs.org/model/boeing-737-8k5) (registry code 13844CY, 149 seats)
- Engine: [CFM International CFM56-7B26/3 series](https://openairdocs.org/engine/cfm-international-cfm56-7b26-3-series) (registry code 13073)
- Serial number: 37240
- Year built: 2014
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: June 26, 2022
- Certificate issued: March 7, 2022
- Expires: March 31, 2029
- Mode S code: AB905C
- Registered owner: [Sun Country Inc](https://openairdocs.org/faa-owner/SUN%20COUNTRY%20INC)
- Location: [Minneapolis, MN](https://openairdocs.org/faa-place/MN/Minneapolis)
- Owner type: Corporation
- Owner's area on the map: 44.8723° N, 93.2328° W: Placed by OpenAirDocs at the center of ZIP code 55450, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=844SY
- Page: https://openairdocs.org/aircraft/N844SY

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. The registry lists only the engine series, so ADs for every CFM International CFM56-7B26/3 model are included.

## ADs that may apply (OpenAirDocs): 10 in force

### Matched by airframe (Boeing 737-8K5)

None in force.

### Matched by engine (CFM International CFM56-7B26/3 series)

- [AD 2023-05-05](https://openairdocs.org/ad/2023-05-05): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 98 more. Effective May 10, 2023
- [AD 2022-02-03](https://openairdocs.org/ad/2022-02-03): Turbine Engine Accessory Drive · CFM International CFM56-3, CFM56-3B, CFM56-3C and 34 more. Effective Mar 22, 2022
- [AD 2018-26-01](https://openairdocs.org/ad/2018-26-01): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jan 10, 2019
- [AD 2018-09-51](https://openairdocs.org/ad/2018-09-51): Engine · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 7, 2018
- [AD 2015-18-04](https://openairdocs.org/ad/2015-18-04): 73-tooth gearshaft located in the engine accessory gearbox (AGB) · CFM International CFM56-3, CFM56-7B20, CFM56-7B20/2 and 47 more. Effective Oct 20, 2015
- [AD 2015-04-02](https://openairdocs.org/ad/2015-04-02): Dual engine thrust instability event · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Mar 31, 2015
- [AD 2010-13-09](https://openairdocs.org/ad/2010-13-09): Stage 3 low-pressure turbine (LPT) · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 88 more. Effective Jul 26, 2010
- [AD 2010-01-05](https://openairdocs.org/ad/2010-01-05): LP turbine rear frames · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 25 more. Effective Feb 18, 2010
- [AD 2009-11-02](https://openairdocs.org/ad/2009-11-02): HPC 4-9 spools · CFM International CFM56-2, CFM56-2A, CFM56-2B and 109 more. Effective Jun 23, 2009
- [AD 2006-26-01](https://openairdocs.org/ad/2006-26-01): Fuel filters · CFM International CFM56-2, CFM56-2A, CFM56-2B and 93 more. Effective Jan 3, 2007

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

- [AD 2021-10-09](https://openairdocs.org/ad/2021-10-09) (historical): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 82 more. Effective Jun 24, 2021
- [AD 2018-18-01](https://openairdocs.org/ad/2018-18-01) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Oct 16, 2018
- [AD 2018-10-11](https://openairdocs.org/ad/2018-10-11) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 1, 2018
- [AD 2018-09-10](https://openairdocs.org/ad/2018-09-10) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective May 14, 2018
- [AD 2013-26-01](https://openairdocs.org/ad/2013-26-01) (historical): Oil dynamic seal assembly · CFM International CFM56-3, CFM56-3B, CFM56-3C and 52 more. Effective Feb 3, 2014

## Information bulletins (advisory) (1 in force)

- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011
- [SAIB NE-08-17R1](https://openairdocs.org/saib/NE-08-17R1) (historical): Propulsion Technology LLC Unapproved Repair. Issued May 22, 2008
- [SAIB NE-08-17](https://openairdocs.org/saib/NE-08-17) (historical): Propulsion Technologies International Unapproved Repair. Issued May 14, 2008

## NTSB investigations

None matched to N844SY.

## FAA accident and incident reports

None matched to N844SY.

## Service difficulty reports (17)

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 SCNA20260914391](https://openairdocs.org/sdr/SCNA20260914391), Sep 13, 2026: SLIDE. UNSECURE. R1 DOOR SLIDE SHOWING FROM UNDER TRIM COVERING. INSPECTED R1 SLIDE GIRT BAR IAW AMM 25-66-01 . NO DEFECT NOTED. AC OK FOR SERVICE.
- [SDR SCNA20260519208](https://openairdocs.org/sdr/SCNA20260519208), May 19, 2026: GIRT BAR. DETACHED. R1 WAS OPENED TO LOAD WHEEL CHAIRS WHEN WE WENT TO CLOSE THE DOOR, THE GIRT BAR FELL OFF AND GOT JAMMED. THE SLIDE LOOKS NORMAL. PERFORMED INSPECTION OF THE SLI
- [SDR SCNA20260406149](https://openairdocs.org/sdr/SCNA20260406149), Apr 5, 2026: SLIDE. DETACHED. L1 EMERGENCY SLIDE FELL OUT OF HOLDER WHEN L1 DOOR WAS OPENED DOOR WAS DISARMED. REINSTALLED ESCAPE SLIDE IAW AMM 25-66-01.
- [SDR SCNA20260325138](https://openairdocs.org/sdr/SCNA20260325138), Mar 24, 2026: SIGN. LOOSE. AFT GALLEY AISLE EMERGENCY EXIT SIGN IN CEILING LOOSE. REMOVED AND REPLACED EXIT SIGN REF AMM 33-51-01-960-802. ALL CHECKS GOOD.
- [SDR SCNA20251212482](https://openairdocs.org/sdr/SCNA20251212482), Dec 11, 2025: GIRT BAR. FAULTED. GIRT BAR, L1 DOOR. PLASTIC PIECE ON GIRT BAR IS LOOSE. GETS STUCK WHEN IN PLACE.
- [SDR SCNA20251103427](https://openairdocs.org/sdr/SCNA20251103427), Nov 2, 2025: VIEW PORT. OUT OF POSITION. R1 DOOR SLIDE VIEWING GLASS OUT OF PLACE. REPOSITIONED AND SECURED DOOR SLIDE VIEWING GLASS IAW AMM 20-30-11
- [SDR SCNA20250902347](https://openairdocs.org/sdr/SCNA20250902347), Aug 30, 2025: HOLDER. DAMAGED. FWD LAV TOILET PAPER HOLDER, SHARP WIRE FOUND WHEN CHANGING ROLL.REMOVED AND REPLACED THE L1 LAV TOILET PAPER HOLDER REF. CMM 25-47-10.
- [SDR SCNA20250902345](https://openairdocs.org/sdr/SCNA20250902345), Aug 30, 2025: GIRT BAR. OUT OF ADJUST. L1 DOOR GIRT BAR LOOSE IN DISARM POSITION ADJUSTED L1 DOOR GIRT BAR BRACKETS REF. AMM 25-66-02.
- [SDR SCNA20250722268](https://openairdocs.org/sdr/SCNA20250722268), Jul 21, 2025: UNKNOWN. ODOR. CREW REPORTS STRANGE SMELL IN CABIN - PERFORMED FIM TASK 21-00 TASK 806 NO DEFECTS NOTED AT THIS TIME REV 06/15/2025
- [SDR SCNA20250401089](https://openairdocs.org/sdr/SCNA20250401089), Mar 31, 2025: GIRT BAR. LOOSE. DEFECT 789342: L1 GIRT BAR CLIPS LOOSE - - RESOLUTION: L1 GIRT BAR RETAINER CLIPS ADJUSTED REF AMM 25-66-01 OK FOR SERVICE
- [SDR SCNA20250324080](https://openairdocs.org/sdr/SCNA20250324080), Mar 22, 2025: HOLDER. LOOSE. DEFECT 789323: 1L GIRT BAR HOLDER IS LOOSE. - - RESOLUTION: TIGHTENED 1L GIRT BAR HOLDER LEFT SIDE REF AMM 25-66-00
- [SDR SCNA20250131041](https://openairdocs.org/sdr/SCNA20250131041), Jan 30, 2025: NONE. NONE. DEFECT 796649: FA'S REPORTED INJURIES DUE TO HARD LANDING IN LAS. HARD LANDING INSP NEEDS TO BE COMPLETED. RESOLUTION: PERFORMED HARD LANDING INSPECTION REF AMM
- [SDR SCNA20240214033](https://openairdocs.org/sdr/SCNA20240214033), Feb 13, 2024: WARNING LIGHT. ILLUMINATED. DEFECT 732140: - RED UNSAFE NOSE GEAR, LEFT GEAR & RIGHT GEAR LIGHTS ILLUMINATED WHEN LANDING GEAR HANDLE POSITIONED DOWN BEFORE LANDIN. GREEN CTR & OVHD PANEL 
- [SDR SCNA20240311152](https://openairdocs.org/sdr/SCNA20240311152), Feb 9, 2024: SUPPORT BEAM. DEFORMED. W/O 83067 N/R-00005; ACCOMPLISHED A PERMANENT REPAIR OF L/H SUPPORT BEAM AND CONTROL RIB OR REPLACE THE DAMAGED PARTS WITHIN THE EARLIEST OF 60 DAYS OR 180 FLIG
- [SDR SCNA20240311145](https://openairdocs.org/sdr/SCNA20240311145), Jan 16, 2024: ANGLE. CRACKED. INITIAL INSPECTION: CRACK ON SEVERAL ANGLES AT STA 500G STGR 26R, STA 500H STRG 26R AND BTW STA 500G/500I AND STGR 23L / 25L ON FWD CARGO COMPARTMENT. DAMAGED A
- [SDR SCNA20240116010](https://openairdocs.org/sdr/SCNA20240116010), Jan 12, 2024: HOOK. UNKNOWN. DEFECT W/O 80125 NRC00012: - - INITIAL INSPECTION: RUSTED HOOK ASSEMBLY OF LEFT AND RIGHT EMERGENCY EXIT HATCH ESCAPE STRAPS. - - RESOLUTION: (IN PROGRESS)
- [SDR SCNA20230605174](https://openairdocs.org/sdr/SCNA20230605174), Jun 3, 2023: UNKNOWN. UNKNOWN. 2R DOOR PLASTIC GUIDE FOR GIRT BAR BROKEN. REPLACED 2R DOOR GUIDE FOR GIRT BAR IAW AMM 25-66-00.

## STCs that may be installed (OpenAirDocs) (2)

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 engine (CFM International CFM56-7B26/3 series)

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC
- [STC SE03036CH](https://openairdocs.org/stc/SE03036CH): Application of a deep compressive stress layer using a Low Plasticity Burnishing (LPB) process on CFM56-7 Series Engines Stage 1 High Pressure Compressor (HPC) Blade Dovetails in accordance with Delta Air Lines Inc. Drawing No. 72-0396, Revision B, dated November 3, 2011, or later FAA Approved revision. Delta Air Lines Inc

## Related

- Other Boeing 737-8K5 aircraft: https://openairdocs.org/model/boeing-737-8k5/aircraft.md
- The CFM International CFM56-7B26/3 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b26-3-series.md

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