# N833SY: 2011 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 CFM56-7B26/3 series](https://openairdocs.org/engine/cfm-international-cfm56-7b26-3-series) (registry code 13073)
- Serial number: 40244
- Year built: 2011
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 17, 2019
- Certificate issued: April 16, 2019
- Expires: April 30, 2029
- Mode S code: AB6526
- 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=833SY
- Page: https://openairdocs.org/aircraft/N833SY

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 737-8KN)

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 N833SY.

## FAA accident and incident reports

None matched to N833SY.

## Service difficulty reports (22)

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 SCNA20260508192](https://openairdocs.org/sdr/SCNA20260508192), Apr 13, 2026: BULKHEAD WEB. CRACKED. CRACK ON VAPOR BARRIER WEB STA 663 AND RBL 32 AT MLG WHELL WELL. - - EMP 201743764 - AREA ON VAPOR BARRIER WEB STA 663 AND RBL 32 AT MLG WHEEL WELL WAS REPAIRED
- [SDR SCNA20260508189](https://openairdocs.org/sdr/SCNA20260508189), Apr 10, 2026: FLOOR SUPPORT. CRACKED. CRACKED PASSENGER FLOOR SUPPORTS (2 EAS) ON STA 540, BTW RBL 2 & LBL 2 WNG BOX AREA. (PAX CAB) - - NEW FLOOR SUPPORTS (2 EAS) ON STA 540, BTW RBL 2 & LBL 2 WNG 
- [SDR SCNA20260508188](https://openairdocs.org/sdr/SCNA20260508188), Apr 9, 2026: ANGLE. CRACKED. CRACK ON ANGLE OF VAPOR BARRIER STA 663 AND RBL 2 AT MLG WHELL WELL. - - ANGLE OF VAPOR BARRIER STA 663 AND RBL 2 AT MLG WHELL WELL WAS REPLACED PER B737-800 SR
- [SDR SCNA20260310113](https://openairdocs.org/sdr/SCNA20260310113), Mar 9, 2026: CALL CHIME. INOPERATIVE. R2 LAV EMERGENCY CALL LIGHT DOESNT MAKE NOISE MX NOTIFIED. ACTIVATED LAV CALL LIGHT IAW AMM 33-27-00. OPS CHECK GOOD
- [SDR SCNA20250721267](https://openairdocs.org/sdr/SCNA20250721267), Jul 19, 2025: PLACARD. DAMAGED. 15D EMERGENCY EXIT INSTRUCTIONS PLACARD ON THE TRAY HAS DAMAGED. R&R 15D EMERGENCY EXIT INSTURCTION PLACARD ON THE TRAY REF AMM 11-32-00.
- [SDR SCNA20250211048](https://openairdocs.org/sdr/SCNA20250211048), Feb 11, 2025: BRACKET. LOOSE. DEFECT 794032: L1 DOOR GIRT BAR BRACKET LOOSE. - - RESOLUTION: FOUND BROKEN RIVET ON GIRT BAR STOWAGE HOOK DOOR 1L BRACKET (FWD). REPLACED RIVET WITH BOLT OF EQ
- [SDR SCNA20241220400](https://openairdocs.org/sdr/SCNA20241220400), Dec 4, 2024: PANEL. DAMAGED. BIRD STRIKE ON R/H WING L/E FIXED PANEL O/B OF FIXED LANDING LIGHT. DAMAGE L-11", H-9", D 1 3/4" SPEED TAPE APPLIED TO DAMAGED AREA. HISTORICAL WORK: MRO EMP # 
- [SDR SCNA20241028348](https://openairdocs.org/sdr/SCNA20241028348), Oct 31, 2024: FLAP SYSTEM. MALFUNCTIONED. DEFECT 752974: SELECTED FLAPS 15 WITH A/S 210 KNOTS FLAPS LOCKED AT 15. - RESOLUTION: PERFORMED CONDITIONAL INSPECTION IAW AMM 05-51-08, NO DEFECTS NOTED.
- [SDR SCNA20240808295](https://openairdocs.org/sdr/SCNA20240808295), Aug 2, 2024: SCREW. MISSING. DEFECT 683188: 2R GIRT BAR FLOOR LATCH PLATE MISSING SCREW. - - RESOLUTION: REPLACED MISSING SCREW REF AMM 20-50-11 GIRT BAR OPS CK GOOD REF AMM 25-66-02
- [SDR SCNA20240422194](https://openairdocs.org/sdr/SCNA20240422194), Apr 20, 2024: HOLDER. LOOSE. 1LN DOOR GIRT BAR HOLDER IS LOOSE. MX NOTIFIED. ADJUSTED CLAMP ON GIRT BAR HOLDER IAW AMM 25-64-00 MX NOTIFIED
- [SDR SCNA20240310115](https://openairdocs.org/sdr/SCNA20240310115), May 18, 2023: SIDEWALL SUPPORT. CORRODED. DEFECT WO 73978 NR00068: INITIAL INSPECTION:CORROSION ON SIDEWALL PANEL SUPPORT AT STA 500I BTW STRINGER 25R/ 26R AND STRINGER 25L//26L AT FWD CARGO COMPARTMEN 
- [SDR SCNA20240310114](https://openairdocs.org/sdr/SCNA20240310114), May 18, 2023: FLOORBEAM. CORRODED. DEFECT WO 73978 NR00067: INITIAL INSPECTION:CORROSION ON FLOOR SUPPORT AT STA 500I FROM LBL 21 TO RBL 21 AT FWD CARGO COMPARTMENT. - - RESOLUTION: FLOOR SUPPORT
- [SDR SCNA20240310113](https://openairdocs.org/sdr/SCNA20240310113), May 18, 2023: FLOORBEAM. CORRODED. DEFECT WO 73978 NR00113: INITIAL INSPECTION: CORROSION ON FLOOR SUPPORT FITTING AT STA 958 & LBL 49, W2. - - RESOLUTION: SUMMARY OF NRC 171: CORROSION ON FLOOR 
- [SDR SCNA20240310112](https://openairdocs.org/sdr/SCNA20240310112), May 18, 2023: FLOORBEAM. CORRODED. DEFECT WO 73978 NR00112: INITIAL INSPECTION: CORROSION (2EAS) ON FLOOR SUPPORT FITTING AT STA 992.5 BTW LBL 37 & RBL 37, W2. - - RESOLUTION: FLOOR SUPPORTS 2 EA
- [SDR SCNA20240310111](https://openairdocs.org/sdr/SCNA20240310111), May 18, 2023: FLOORBEAM. CORRODED. DEFECT WO 73978 NR00111: INITIAL INSPECTION: CORROSION (2EAS) IN FLOOR SUPPORT BEAM AT STA 986.5 BTW LBL 43 & RBL 43, W2. - - RESOLUTON: CORROSION ON FLOOR SUPP
- [SDR SCNA20240310109](https://openairdocs.org/sdr/SCNA20240310109), Apr 18, 2023: FLOOR SUPPORT. CORRODED. DEFECT WO73978 NR00103: INITIAL INSPECTION: CORROSION ON FLOOR BEAM SUPPORT AT LBL 12 BTW STA 294.5 & 312, W1. - - RESOLUTION: FLOOR BEAM SUPPORT AT LBL 12 BTW 
- [SDR SCNA20220831102](https://openairdocs.org/sdr/SCNA20220831102), Aug 21, 2022: CONTROLLER. FAILED. DEFECT 700594: DURING DESCENT CABIN ALTITUDE UNCONTROLLABLE. RAN QRH 2.4 SWITCHED TO ALT, NO CHANGE. SWITCHED TO MAN AND OPENED OUTFLOW MANUALLY. RESOLUTION: FO
- [SDR SCNA20220617071](https://openairdocs.org/sdr/SCNA20220617071), Jun 15, 2022: GIRT BAR. LOOSE. DEFECT 681739: 1R GIRT BAR HOUSING BRACKET IS NOT SECURE RESOLUTION: REMOVED SLIDE FROM R1 DOOR TO FOM AND RESECURED GIRT BAR HOUSING BRACKET. THEN REINSTALLED 
- [SDR SCNA20220523050](https://openairdocs.org/sdr/SCNA20220523050), May 19, 2022: FLAP SYSTEM. ASYMETRIC. DEFECT: HAD A FLAP ASYMMETRY WHEN EXTENDING TO THE FLAPS 1 POSITION (ON TRAILING EDGE FLAPS). RESOLUTION: REPLACED FLAP POSITION INDICATOR REF AMM 27-58-02. OPS
- [SDR SCNA20220325015](https://openairdocs.org/sdr/SCNA20220325015), Mar 25, 2022: COVER. MISSING. DEFECT: LIGHT COVER NEAR AFT LEFT LAV IS MISSING. RESOLUTION: INSTALLED ADT LEFT ASSY LENS IAW B737 AMM SCA D633A101-SCA TASK 33-57-14-960-802
- [SDR SCNA20220414027](https://openairdocs.org/sdr/SCNA20220414027), Mar 24, 2022: NONE. NONE. DEFECT: LIGHT COVER NEAR AFT LEFT LAV IS MISSING. RESOLUTION: INSTALLED ADT LEFT ASSY LENS IAW B737 AMM SCA D633A101-SCA TASK 33-57-14-960-802
- [SDR SCNA20211020086](https://openairdocs.org/sdr/SCNA20211020086), Oct 17, 2021: LIGHT. FAILED. SMOKE STARTED COMING OUT OF CA YOKE FLIGHT NUMBER BACK LIGHTING FOR A VERY BRIEF PERIOD OF 3- 5 SECONDS BACKLIGHTING IS NOW INOP AS WELL AS THE BACKLIGHTING ON 

## 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 737-8KN aircraft: https://openairdocs.org/model/boeing-737-8kn/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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