# N733KA: 2001 Boeing 737-86N

- Status: Valid registration
- Airframe: [Boeing 737-86N](https://openairdocs.org/model/boeing-737-86n) (registry code 13844CD, 149 seats)
- Engine: [CFM International CFM56-7B26 series](https://openairdocs.org/engine/cfm-international-cfm56-7b26-series) (registry code 13045)
- Serial number: 28643
- Year built: 2001
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 5, 2015
- Certificate issued: May 12, 2020
- Expires: May 31, 2027
- Mode S code: A9D712
- 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=733KA
- Page: https://openairdocs.org/aircraft/N733KA

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 model are included.

## ADs that may apply (OpenAirDocs): 19 in force

### Matched by airframe (Boeing 737-86N)

None in force.

### Matched by engine (CFM International CFM56-7B26 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 2021-16-08](https://openairdocs.org/ad/2021-16-08): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 55 more. Effective Sep 28, 2021
- [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 2008-03-09](https://openairdocs.org/ad/2008-03-09): Low pressure turbine rear frames (TRFs) · CFM International CFM56-7B18, CFM56-7B20, CFM56-7B22 and 10 more. Effective Mar 10, 2008
- [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
- [AD 2002-16-18](https://openairdocs.org/ad/2002-16-18): Low pressure turbine (LPT) nozzle segments · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 33 more. Effective Sep 18, 2002
- [AD 2002-13-03](https://openairdocs.org/ad/2002-13-03): Turbofan Engines · CFM International CFM56-2, CFM56-2A, CFM56-2B and 55 more. Effective Aug 1, 2002
- [AD 2001-11-05](https://openairdocs.org/ad/2001-11-05): No. 4 Bearings · CFM International CFM56-2, CFM56-2B, CFM56-3 and 45 more. Effective Jun 11, 2001
- [AD 2001-02-12](https://openairdocs.org/ad/2001-02-12): On-Wing Torque Inspection · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 11 more. Effective Feb 14, 2001
- [AD 98-21-23](https://openairdocs.org/ad/98-21-23): Electronic Engine Control · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Nov 2, 1998
- [AD 98-19-20](https://openairdocs.org/ad/98-19-20): Hydromechanical Unit · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 7 more. Effective Oct 7, 1998
- [AD 98-14-51](https://openairdocs.org/ad/98-14-51): Accessory Gearbox · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Oct 1, 1998

### 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 2019-12-05](https://openairdocs.org/ad/2019-12-05) (historical): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 39 more. Effective Jul 5, 2019
- [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
- [AD 2000-12-01](https://openairdocs.org/ad/2000-12-01) (historical): Critical Life-Limited Parts · CFM International CFM56-2, CFM56-2A, CFM56-2B and 54 more. Effective Dec 11, 2000

## 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 N733KA.

## FAA accident and incident reports

None matched to N733KA.

## Service difficulty reports (21)

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 COZA20200411130](https://openairdocs.org/sdr/COZA20200411130), Apr 9, 2020: VALVE. LEAKING. THE WING FUEL TANKS BECAME IMBALANCED BY 800 LBS. AFTER THE CENTER FUEL TANK WAS EMPTIED. THE FUEL CROSSFEED VALVE WAS DETERMINED TO BE LEAKING. REPLACED THE FU
- [SDR COZA20181010125](https://openairdocs.org/sdr/COZA20181010125), Oct 7, 2018: IMPELLER. INTERMITTENT. LEFT CENTER TANK FUEL PUMP LOW PRESSURE ANNUNCIATOR CAME ON BRIEFLY WITH THE FUEL LEVEL IN THE CENTER TANK OVER HALF FULL. REPLACED THE LEFT CENTER TANK FUEL OV
- [SDR COZA20181008124](https://openairdocs.org/sdr/COZA20181008124), Oct 5, 2018: BUSHING. MISSING. FLANGED BUSHINGS WERE FOUND LOOSE OR MISSING FROM THE STAGE 2 UNISON RING ON THE NR 2 ENGINE. THE STAGE 2 UNISON RING WAS REPAIRED BY REPLACING 18 EA FLANGED BU
- [SDR COZA20180920123](https://openairdocs.org/sdr/COZA20180920123), Sep 17, 2018: CONVERTER. INTERMITTENT. APU INTERMITTENTLY DOES NOT START ON BATTERY POWER. PERFORMED AN APU BITE CHECK FOR CURRENT FAULTS. FOUND MAINTENANCE MESSAGE 49-41248. TROUBLESHOT THE SYSTEM D
- [SDR COZA20171202121](https://openairdocs.org/sdr/COZA20171202121), Nov 28, 2017: START VALVE. INOPERATIVE. RIGHT ENGINE START VALVE WOULD NOT OPEN FAR ENOUGH TO ALLOW FOR ENGINE START. REPLACED START VALVE AND OPERATIONAL CHECK NORMAL.
- [SDR COZA20170324106](https://openairdocs.org/sdr/COZA20170324106), Mar 22, 2017: SENSOR. FAILED. THE RIGHT PACK TEMPERATURE INDICATOR SHOWED 0 DEGREES WITH THE RIGHT PACK OPERATING NORMALLY. THE FIRST ITEM TO CHECK IN THE FIM WAS THE PACK OUTLET TEMPERATURE
- [SDR COZA20161223103](https://openairdocs.org/sdr/COZA20161223103), Dec 21, 2016: WIRE HARNESS. SHORTED. NR 2 ENGINE FIRE LOOP LIGHT DID NOT TEST. WHILE PERFORMING RESISTANCE CHECKS ON THE #2 ENGINE LOOP A DETECTORS NOTICED RESISTANCE CHANGES WHEN THE FIRE DETECTOR
- [SDR COZA20161223102](https://openairdocs.org/sdr/COZA20161223102), Dec 20, 2016: FIRE DETECTOR. INTERMITTENT. #2 ENGINE FIRE LOOP LIGHT DID NOT TEST. PERFORMED A BITE CHECK ON THE ENGINE FIRE DETECTION MODULE AND FOUND ENGINE 2 LOOP A CORE RIGHT FAULT DISPLAYED. REPLACE
- [SDR COZA20161217101](https://openairdocs.org/sdr/COZA20161217101), Dec 15, 2016: VALVE. STICKING. DURING MAINTENANCE ENGINE RUNS, NOTED LEFT ENGINE BLEED PRESSURE WAS LOWER THAN THE RIGHT ENGINE AT IDLE POWER SETTINGS. THE LEFT ENGINE BLEED AIR PRESSURE WOUL
- [SDR COZA20161217100](https://openairdocs.org/sdr/COZA20161217100), Dec 15, 2016: REGULATOR. INTERMITTENT. DURING MAINTENANCE ENGINE RUNS, NOTED LEFT ENGINE BLEED PRESSURE WAS LOWER THAN THE RIGHT ENGINE AT IDLE POWER SETTINGS. THE LEFT ENGINE BLEED AIR PRESSURE WOUL
- [SDR COZA20161017097](https://openairdocs.org/sdr/COZA20161017097), Oct 13, 2016: ACTUATOR. INTERMITTENT. LEFT RAM AIR DOOR ACTUATOR REPLACED AS PART OF TROUBLESHOOTING FOR A PACK LIGHT APPEARING ON RECALL.
- [SDR COZA20160901094](https://openairdocs.org/sdr/COZA20160901094), Sep 1, 2016: TRANSMITTER. INTERMITTENT. FMC CDU ENGINE 1 BITE TEST SHOWED "OIL FILTER SIGNALS DISAGREE MESSAGE" 79-31121. FIM 79-05 TASK 817 WAS USED TO TROUBLESHOOT THE SYSTEM IN THE ORDER OF STEPS G
- [SDR COZA20160820090](https://openairdocs.org/sdr/COZA20160820090), Aug 17, 2016: VALVE. INTERMITTENT. CONTROL CABIN AMBER ZONE TEMPERATURE ANNUNCIATOR ILLUMINATED ON RECALL. BITE CHECK OF THE ZONE/TEMPERATURE CONTROLLER INDICATED A FAILED CONTROL CABIN TRIM AIR 
- [SDR COZA20160815086](https://openairdocs.org/sdr/COZA20160815086), Aug 15, 2016: SENSOR. FAULTY. DURING GROUND ENGINE RUN NOTICED A DUCT PRESSURE SPLIT WITH RIGHT SIDE LOW. TROUBLESHOT USING FIM. REPLACED RIGHT 450 DEG THERMOSTAT SENSOR. PERFORMED ENGINE RU
- [SDR COZA20160815089](https://openairdocs.org/sdr/COZA20160815089), Aug 14, 2016: SENSOR. INTERMITTENT. RIGHT BLEED TRIP OFF LIGHT AT FL340 DURING AIRCRAFT CLIMBOUT. USING FIM, REPLACED THE RIGHT 390 DEG TEMPERATURE SENSOR. OPERATIONAL AND LEAK CHECK OK.
- [SDR COZA20160815088](https://openairdocs.org/sdr/COZA20160815088), Aug 14, 2016: SENSE LINE. LEAKING. RIGHT BLEED TRIP OFF LIGHT AT FL340 DURING CLIMBOUT. FOLLOWING FIM, LEAK CHECKED LINES ASSOCIATED WITH BLEED SYSTEM ON THE RIGHT SIDE. FOUND PRECOOLER VALVE SEN
- [SDR COZA20160815087](https://openairdocs.org/sdr/COZA20160815087), Aug 14, 2016: SHUTOFF VALVE. INTERMITTENT. RIGHT BLEED TRIP OFF LIGHT AT FL 340 DURING AIRCRAFT CLIMBOUT. REPLACED RIGHT PRESSURE REGULATING AND SHUTOFF VALVE. LEAK AND OPERATIONAL CHECK OK.
- [SDR COZA20160815085](https://openairdocs.org/sdr/COZA20160815085), Aug 11, 2016: ACTUATOR. FAULTY. DURING DECENT, RIGHT PACK LIGHT ILLUMINATED. PERFORMED BITE CHECK ON RIGHT PACK/ZONE TEMPERATURE CONTROLLER AND FOUND THE RAM AIR ACTUATOR LIGHT DISPLAYED. REPL
- [SDR COZA20160718084](https://openairdocs.org/sdr/COZA20160718084), Jul 14, 2016: CONTROLLER. INTERMITTENT. LEFT AMBER "PACK" ANNUNCIATOR ILLUMINATED ON RECALL. REPLACED THE PACK ZONE TEMPERATURE CONTROLLER PER THE FIM. OPS CHECKED OK.
- [SDR COZA20160718083](https://openairdocs.org/sdr/COZA20160718083), Jul 14, 2016: ACCESSORY UNIT. INTERMITTENT. LEFT AMBER "PACK" ANNUNCIATOR ILLUMINATED ON RECALL. REPLACED THE AIR CONDITIONING AND ACCESSORY UNIT PER THE FIM. OPERATIONAL CHECK OK.
- [SDR COZA20160718079](https://openairdocs.org/sdr/COZA20160718079), Jul 12, 2016: ACTUATOR. FAULTY. RIGHT AMBER "PACK" LIGHT ILLUMINATED ON RECALL DURING DECENT. BITE CHECK WAS PERFORMED ON THE RIGHT PACK/ZONE TEMPERATURE CONTROLLER. RAM AIR ACTUATOR LIGHT WAS

## 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 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 737-86N aircraft: https://openairdocs.org/model/boeing-737-86n/aircraft.md
- The CFM International CFM56-7B26 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b26-series.md

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