# N850SY: 2014 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 CFM56-7B26E series](https://openairdocs.org/engine/cfm-international-cfm56-7b26e-series) (registry code 13099)
- Serial number: 40265
- Year built: 2014
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 18, 2022
- Certificate issued: July 19, 2022
- Expires: July 31, 2029
- Mode S code: ABA8FF
- Registered owner: [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE)
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, 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=850SY
- Page: https://openairdocs.org/aircraft/N850SY

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 CFM56-7B26E model are included.

## ADs that may apply (OpenAirDocs): 6 in force

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

None in force.

### Matched by engine (CFM International CFM56-7B26E 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 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 N850SY.

## FAA accident and incident reports

None matched to N850SY.

## Service difficulty reports (16)

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 SCNA20260821369](https://openairdocs.org/sdr/SCNA20260821369), Aug 21, 2026: WINDOW. CRACKED. L1 WINDOW OVERHEAT MESSAGE. L1 WINDOW CRACKED. RAN BOTH QRH CHECKLIST. REMOVED AND REPLACED L1 WINDOW ASSY IAW AMM 56-11-11/401 OPS AND LEAK CHECKS GOOD.
- [SDR SCNA20260417158](https://openairdocs.org/sdr/SCNA20260417158), Apr 16, 2026: PITOT TUBE. OBSTRUCTED. EMERGENCY DECLARED AT 100KTS BOTH EECS LIGHT ILLUMINATED ALTN. IAS DISAGREE, CA SIDE CORRECT & STDBY IAS, FO SIDE INCORRECT - - PERFORMED FIM 31-62 TASK 876, FO
- [SDR SCNA20260216086](https://openairdocs.org/sdr/SCNA20260216086), Feb 15, 2026: LIGHT. DETACHED. EMERGANCY PATH LIGHTING PEELING OFF CARPET AT 13ABC. INSPECTED PHOTOLUMINSCENT STRIP. RESECURED TO FLOOR. OK FOR SERVICE. IAW AMM 33-51-15.
- [SDR SCNA20251222498](https://openairdocs.org/sdr/SCNA20251222498), Dec 21, 2025: LIGHT. UNSECURE. EMERGENCY LIGHTING PATHWAY STRIP AT ROW 12 ABC IS LIFTING UP FROM THE FLOOR, REINSTALLED EMERGENCY LIGHT STRIP AT ROW 12 ABC REF AMM33-51-12
- [SDR SCNA20250205044](https://openairdocs.org/sdr/SCNA20250205044), Feb 4, 2025: A/C PACK. ODOR. DEFECT 793019: WHILE TAXIIING ON #2 ENGINE (#1 ENGINE OFF), SMELL OBSERVED FROM RIGHT PACK (APU RAN LEFT PACK). SWITCHED BOTH PACKS TO APU BLEED (BOTH ENGINE BL
- [SDR SCNA20250204043](https://openairdocs.org/sdr/SCNA20250204043), Feb 4, 2025: BLEED AIR SYS. ODOR. STRONG FUMES OBSERVED IN CABIN. - RESOLUTION: EVALUATED PER FIM 21-00 TASK 806. DETERMINED SOURCE OF SMELL TO BE #1 AND #2 ENG BLEEDS. BOTH BLEED PLACED ON MEL 
- [SDR SCNA20250120024](https://openairdocs.org/sdr/SCNA20250120024), Jan 18, 2025: BRACKET. FAULTED. DEFECT 798295: L1 DOOR BRACKET WILL NOT HOL GIRT BAR IN PLACE. RESOLUTION: L1 DOOR GIRT BAR RETAINER CLIP ADJUSTED REF AMM 25-66-01 OPS CHECK GOOD.
- [SDR SCNA20250106002](https://openairdocs.org/sdr/SCNA20250106002), Jan 3, 2025: GIRT BAR. MISCONFIGURED. DEFECT 798276: DOOR 1L GIRT BAR JAMMED. RESOLUTION: GIRT BAR AT 1L WAS STOWED INCORECTLY CAUSING IT TO JAM IN BRACKET. REPOSITIONED BAR CORECTLY IN BRACKETS. OP
- [SDR SCNA20241028337](https://openairdocs.org/sdr/SCNA20241028337), Oct 21, 2024: SLIDE. MISINSTALLED. L-1 DOOR SLIDE NOT INSTALLED CORRECTLY, LOWER SUPPORT PIN NOT SEATED AND SLIDE BOTTOM PUSHED AWAY FROM ACTUAL DOOR LINER. RESOLUTION: REINSTALLED L1 DOOR SLIDE 
- [SDR SCNA20240725283](https://openairdocs.org/sdr/SCNA20240725283), Jun 28, 2024: FRAME. DENTED. DENT ON RH FRAME OF STA 727F BTW S-23R AND S-24R AT AFT CARGO COMPARTMENT. REPAIRED PER ENG-53SCA-11430
- [SDR SCNA20240717279](https://openairdocs.org/sdr/SCNA20240717279), Jun 26, 2024: ANGLE. CRACKED. CRACK IN ANGLE OF INTERCOSTAL AT RBL 21 & STA 500H OF FWD CARGO COMPARTMENT. REPLACED PER B737-800 SRM 51-40-02-0G-0
- [SDR SCNA20240717278](https://openairdocs.org/sdr/SCNA20240717278), Jun 25, 2024: SPAR. CRACKED. CRACK ON WEB ON INTERNAL STRUCTURE AT REAR SPAR AT WS 280 LH WING. FABRICATE PER DWG : 115A21566 REV: D PL: 115A2156 REV: E AND INSTALL WITH NRC 00051
- [SDR SCNA20240717277](https://openairdocs.org/sdr/SCNA20240717277), Jun 25, 2024: SPAR. CRACKED. CRACK ON OUTBD ANGLE AT RH WING FIXED TRAILING EDGE REAR SPAR APPROX WS 278.00. REPLACED PER B737-800 SRM 51-40-02-0G-0
- [SDR SCNA20240717276](https://openairdocs.org/sdr/SCNA20240717276), Jun 25, 2024: ANGLE. CRACKED. CRACKED ANGLES ON DOOR COVER 834DZ AND 844DZ. REPLACED PER B737-800 SRM 51-40-02-0G-0 PAR 4
- [SDR SCNA20240717280](https://openairdocs.org/sdr/SCNA20240717280), Jun 24, 2024: TEE ANGLE. CRACKED. CRACK IN TEE ANGLE OF BELLY FAIRING ACCESS PANEL 192CR SUPPORT AT STA 649.96. REPLACED PER B737-800 SRM 51-40-02-0G-0
- [SDR SCNA20230130047](https://openairdocs.org/sdr/SCNA20230130047), Jan 28, 2023: DOOR. OPEN. EXTERNAL GROUND POWER DOOR WAS LEFT OPEN. VIBRATIOIN AND BUZZING NOISE OBSERVED DURING FLIGHT. INSPECTED EXTERNAL GROUND POWER DOOR IAW AMM 52-49-02-400-801 OPE

## 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 CFM56-7B26E series)

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

## Earlier aircraft with N850SY

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N850SY before.

- [Cancelled 2013-07-09](https://openairdocs.org/deregistered/N850SY-2013-07-09): Socata TBM 700, S/N 546, built 2010. Registration expired, pending cancellation. Owner: [Green Plane LLC](https://openairdocs.org/faa-owner/GREEN%20PLANE%20LLC), [Wisconsin Dells, WI](https://openairdocs.org/faa-place/WI/Wisconsin%20Dells)
- [Cancelled 1990-03-27](https://openairdocs.org/deregistered/N850SY-1990-03-27): Boeing 727-230, S/N 21114. Exported to Turkey. Owner: [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)

## Related

- Other Boeing 737-8KN aircraft: https://openairdocs.org/model/boeing-737-8kn/aircraft.md
- The CFM International CFM56-7B26E series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b26e-series.md

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