# N836SY: 2012 Boeing 737-8KN

- Status: Valid registration
- Airframe: [Boeing 737-8KN](https://openairdocs.org/model/boeing-737-8kn) (registry code 1384612, 191 seats)
- Engine: [CFM International CFM56-7B27AE series](https://openairdocs.org/engine/cfm-international-cfm56-7b27ae-series) (registry code 13079)
- Serial number: 40251
- Year built: 2012
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 30, 2020
- Certificate issued: January 29, 2020
- Expires: January 31, 2030
- Mode S code: AB704B
- 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=836SY
- Page: https://openairdocs.org/aircraft/N836SY

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 CFM56-7B27AE model are included.

## ADs that may apply (OpenAirDocs): 7 in force

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

None in force.

### Matched by engine (CFM International CFM56-7B27AE 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 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

### 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

## NTSB investigations

None matched to N836SY.

## FAA accident and incident reports

None matched to N836SY.

## Service difficulty reports (15)

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 SCNA20260901377](https://openairdocs.org/sdr/SCNA20260901377), Aug 29, 2026: COFFEEMAKER. FAILED. REAR COFFEE POT SMOKING, TURNED OFF & WILL NOT TURN BACK ON. R & R THE AFT GALLEY COFFEE MAKER IAW AMM 25-31-01, OPS CHKD GOOD.
- [SDR SCNA20260813358](https://openairdocs.org/sdr/SCNA20260813358), Aug 12, 2026: LIGHT. DETACHED. FLOOR PROXIMITY EMERGECY ESCAPE PATH MARKING SYSTEM LOOSE ROWS 11 AND 12 DEF. RESECURED EMERGENCY ESCAPE FLOOR PATH LIGHTING TO FLOOR IAW AMM 25-27-15. OPS CHEC
- [SDR SCNA20260518202](https://openairdocs.org/sdr/SCNA20260518202), May 15, 2026: LIGHT. UNSECURE. FLOOR ROWS 12 AND 13 SEATS DEF EXIT PATH LIGHT STRIPPING COMING OFF. SECURED EXIT PATH LIGHT FLOOR STRIPPING IAW AMM 20-30-11 AND CMM 33-51-07.
- [SDR SCNA20260428174](https://openairdocs.org/sdr/SCNA20260428174), Apr 28, 2026: COFFEEMAKER. ODOR. ELECTRICAL BURNING SMELL COMING FROM OVEN OR COFFEE MAKER. REMOVED AND REAPLCED AFT OVEN REF AMM 25-31-01 OPS CHECK NORMAL THIS CLEARS MEL.
- [SDR SCNA20260324134](https://openairdocs.org/sdr/SCNA20260324134), Mar 23, 2026: LIGHT. UNSECURE. ROW 13D EMER PATH LIGHT STRIP LOOSE SECURED FLOOR TRACK LIGHTING REF 25-00-00
- [SDR SCNA20260223100](https://openairdocs.org/sdr/SCNA20260223100), Feb 22, 2026: SENSOR. FAULTED. AFTER DRPARTURE/ AIRBORNE RIGHT MAIN GEAR INDICATOR STAYED ILLUMINATED. PERFORMED PSUE BITE FOUND FAULT 32-61005 R DN LKD A FAULT REMOVED AND REPLACED SENSOR S0
- [SDR SCNA20251216492](https://openairdocs.org/sdr/SCNA20251216492), Dec 14, 2025: LIMIT SWITCH. CONTAMINATED. DURING CLIMB FROM KLBB WE GOT A GEAR DISAGREE AND RAN THE QRH. THE MANUAL GEAR DOOR HAD POPPED OPEN AND IS HARD TO CLOSE & LATCH. PERFORMED PSEU BITE PER FIM 32
- [SDR SCNA20250807298](https://openairdocs.org/sdr/SCNA20250807298), Aug 4, 2025: CONTROL VALVE. LOCKED. NUMBER 1 ENG UNRESPONSIVE AFTER TOUCH DOWN N1 STUCK AT 20% WITH NO CHANGE IN N1, N2, FF WITH THRUST LEVER INCREASE. REVERSER LIGHT YELLOW WITH INABILITY TO ENGA
- [SDR SCNA20250603187](https://openairdocs.org/sdr/SCNA20250603187), Jun 3, 2025: OVEN. SMOKE. AFT OVEN A/C LEFT SMOKES, NEEDS TO BE CLEANED ( NON-ESSENTIAL EQUIPMENT AND FURNISHING (NEF) ) - RESOLUTION: CLEANED AFT GALLEY OVEN #3 OPS CHECK GOOD REF AMM 2
- [SDR SCNA20250217051](https://openairdocs.org/sdr/SCNA20250217051), Feb 16, 2025: UNKNOWN. ODOR. DEFECT 790020: HYDRAULIC SYSTEM A AT 73%WITH RF WAS 100% FULL WHEN WE LEFT MSP. COULD SMELL HYDRAULIC FLUID ON DESCENT. - - RESOLUTION: REFILLED SYS A HYDRAULIC
- [SDR SCNA20230522160](https://openairdocs.org/sdr/SCNA20230522160), May 21, 2023: SLIDE. DISLODGED. DEFECT 769504: DOOR 2L SLIDE FELL OUT OF HOLDER. NO DEPLOYMENT OF SLIDE. - - - RESOLUTION: REINSTALLED SLIDE IN COVER AND INSTALLED ON DOOR PER AMM 25-66-01 INS
- [SDR SCNA20221122147](https://openairdocs.org/sdr/SCNA20221122147), Nov 20, 2022: GIRT BAR. OUT OF POSITION. ESCAPE SLIDE EXTENDS TOO FAR FROM DOOR L2. REPOSITIONED GIRT BAR AS TO PROPERLY STOW .REF AMM 25-66-01.NOTE: DID NOT REMOVE SLIDE OR OPEN COVER TO ACCOMPLISH.
- [SDR 2022FA0000059](https://openairdocs.org/sdr/2022FA0000059), Jan 13, 2022: NONE. NONE. CORROSION ON SHIELD AT BS 492-500A STRINGER 26R/H. REPLACED SHIED AT B.S. 492-500A STRINGER 26 R/H PER DRAWING 143A0080 I.A.W B737 SRM 51-40-02-0G-0 RU74, B737 
- [SDR 2022FA0000058](https://openairdocs.org/sdr/2022FA0000058), Jan 13, 2022: NONE. NONE. LIGHTNING STRIKE IN FUSELAGE SKIN @STA. 277, 1.5" ABOVE STR. 16R. REMOVED DAMAGE AT BS 277 1.5" ABOVE STR 16R IAW B737-800 53-00-01 REPAIR 36 REV 74 CUT OUT MEA
- [SDR SCNA202104080017](https://openairdocs.org/sdr/SCNA202104080017), Apr 5, 2021: WARNING MESSAGE. FALSE ACTIVATION. DURING LDG APPROACH IN LAS, RECEIVED UNSAFE GEAR INDICATION ALONG W/ GPWS WARNING. EXECUTED GO AROUND AND RAN QRH , SECOND APPROACH WAS NORMAL. PERFORMED PSEU B

## STCs that may be installed (OpenAirDocs) (1)

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 CFM56-7B27AE series)

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC

## Related

- Other Boeing 737-8KN aircraft: https://openairdocs.org/model/boeing-737-8kn/aircraft.md
- The CFM International CFM56-7B27AE series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b27ae-series.md

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