# N15751: 1999 Boeing 737-71Q

- Status: Valid registration
- Airframe: [Boeing 737-71Q](https://openairdocs.org/model/boeing-737-71q) (registry code 13844CA, 149 seats)
- Engine: [CFM International CFM56-7B22 series](https://openairdocs.org/engine/cfm-international-cfm56-7b22-series) (registry code 13043)
- Serial number: 29047
- Year built: 1999
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 13, 2015
- Certificate issued: April 13, 2015
- Expires: April 30, 2028
- Mode S code: A0E751
- Registered owner: [United Airlines Inc](https://openairdocs.org/faa-owner/UNITED%20AIRLINES%20INC)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- Owner's area on the map: 41.8813° N, 87.6375° W: Placed by OpenAirDocs at the center of ZIP code 60606, 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=15751
- Page: https://openairdocs.org/aircraft/N15751

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 CFM56-7B22 model are included.

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

### Matched by airframe (Boeing 737-71Q)

None in force.

### Matched by engine (CFM International CFM56-7B22 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 N15751.

## FAA accident and incident reports

None matched to N15751.

## Service difficulty reports (65, newest 50)

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 CALA2026101220267](https://openairdocs.org/sdr/CALA2026101220267), Oct 7, 2026: BATTERY PACK. NO TEST. EMERGENCY LIGHT BATTERY PACK AT M1672 FAILED OPERATION CHECK. REMOVED AND REPLACED M1672 BATTERY IAW AMM 33-51-06 OPS CHK GOOD.
- [SDR CALA2026101220266](https://openairdocs.org/sdr/CALA2026101220266), Oct 7, 2026: BATTERY PACK. NO TEST. EMERGENCY LIGHT BATTERY PACK AT M1669 FAILED OPERATION CHECK. REMOVED AND REPLACED M1669 BATTERY PACK IAW AMM 33-51-06 OPS CHK GOOD.
- [SDR CALA2026062917382](https://openairdocs.org/sdr/CALA2026062917382), Jun 27, 2026: HOUSING. DAMAGED. EMERGENCY LIGHTS - OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - ROW 29 ABC EPL SHROUD IS DAMAGED AND NOT SECURED TO SEAT REMOVED AND REPLACED THE BROK
- [SDR CALA2025111711259](https://openairdocs.org/sdr/CALA2025111711259), Nov 15, 2025: SMOKE DETECTOR. FALSE ACTIVATION. SMOKE ALARM. NO SMOKE NOTICED ALL LAV SMOKE DETECTORS OPS NORMAL, IAW AMM 26-14-00-730-801.
- [SDR CALA2025111311179](https://openairdocs.org/sdr/CALA2025111311179), Nov 11, 2025: INDICATOR. FAULTED. FLAPS STUCK BETWEEN 5 AND 10 DEGREES AND WOULD NOT MOVE WITH FLAP HANDLE MOVEMENT. PSEU LIGHT ON. BITE CHECKED PSEU AND FOUND LDG FLAP A FAULT MESSAGE 32-62009 
- [SDR CALA2025111011030](https://openairdocs.org/sdr/CALA2025111011030), Nov 9, 2025: FLAP SYSTEM. MALFUNCTIONED. FLAP LOCK OUT ON 1ST TICK. ATTEMPTED RESEAT OF LEVER, NO HELP. ALTN EXTENSION REQUIRED. PERFORMED OPS CHECK OF NORMAL AND ALTN FLAP CONTROL SYSTEMS IAW AMM 27-5
- [SDR CALA2025080107212](https://openairdocs.org/sdr/CALA2025080107212), Jul 30, 2025: WINDOW FRAME. CRACKED. L3 WINDOW FRAME E-F POST REPAIRED PER ECRA 5310-08654. PERFORM AN INSPECTION OF LT WINDOW FRAME E-F POST REPAIR ON AIRCRAFT IAW PART 2 OF THE LATEST REVISION OF
- [SDR CALA2025073107146](https://openairdocs.org/sdr/CALA2025073107146), Jul 30, 2025: WINDOW FRAME. DAMAGED. REPAIR THE RH #3 WINDOW FRAME E-F POST REF TO ECRA 5611-01314 R EV C PART 3. REPAIRED PER ECRA 5310-08655 REPAIR THE R3 WINDOW FRAME E-F POST REF TO ECRA 5611-0
- [SDR CALA2025073107142](https://openairdocs.org/sdr/CALA2025073107142), Jul 30, 2025: BATTERY PACK. NO TEST. EMERGENCY PASSENGER CABIN LIGHTS M1674 FAILS BATTERY CAPACITY CHECK. REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACK M01674 AND PERFORMED INSTALLATION TEST I
- [SDR CALA2025041403776](https://openairdocs.org/sdr/CALA2025041403776), Apr 12, 2025: LANDING LIGHT. DAMAGED. PDA 2 RF LOG 4481684.. LEFT RETRACTABLE LANDING LIGHT LENS AND BULB MISSING ON ARRIVAL... SEE PHOTO... ADDED PHOTO PARTS USED: 29-3342-9-0001,QTY :1 REPLACED LH
- [SDR CALA2025021800376](https://openairdocs.org/sdr/CALA2025021800376), Feb 17, 2025: STRAP. CORRODED. REMOVED AND INSTALLED NEW R/W FRONT SPAR LOWER STRAP INBD OF PYLON AT IFSS 155 AS PER SRM 51-40-02-0G-0,DWG 112A4401.REF AAR N/R9935224.WORK ACCOMPLISHED BY V94
- [SDR CALA2025021400353](https://openairdocs.org/sdr/CALA2025021400353), Feb 12, 2025: STRAP. GOUGED. FOUND 3 EACH LOWER STRAPS WITH GOUGES AT STA 540 LBL STRINGER 23 REF AAR N/R 9935388
- [SDR CALA2025021100337](https://openairdocs.org/sdr/CALA2025021100337), Feb 7, 2025: PAN. CRACKED. REMOVED AND REPLACED PAN ASSY AT DOOR CUT OUT R1 PER REF SRM 51-40-02-0G-0 AND DWG 141A8370.REF AAR N/R 9935718. WORK ACCOMPLISHED BY V894270.
- [SDR CALA2025020500296](https://openairdocs.org/sdr/CALA2025020500296), Feb 1, 2025: SKIN. CRACKED. CRACK FOUND AT RIGHT HORIZONTAL STB LOWER SKIN STA 147.90, 24" FROM SPAR, I/B ROW. CRACK LENGTH 0.5" REF AAR N/R 9935073
- [SDR CALA2025012900229](https://openairdocs.org/sdr/CALA2025012900229), Jan 22, 2025: FLOORBEAM. CORRODED. AFT WET ARE STA 992 RBL48 INNER CHORD SEVERAL SPOTS OF CORROSION REF AAR NR9935198 REMOVED AND REPLACED AFT WET ARE STA992RBL48INNER CHORD DUE TO SEVERAL SPOTS 
- [SDR CALA2024122701675](https://openairdocs.org/sdr/CALA2024122701675), Dec 25, 2024: ACM. FAULTED. LEFT PACK DRIVING FULL HOT REGARDLESS OF MANUAL CONTROL VALVE. E LEC SMELL NOTED REMOVED AND REPLACED L/H ACM PER REF AMM 21-51-04. OPS CHECK GOOD. NO LEAK NOTE
- [SDR CALA2024111901180](https://openairdocs.org/sdr/CALA2024111901180), Nov 16, 2024: LAMP. INOPERATIVE. WINDOW LIGHT ABOVE EMERGENCY EXIT INOP AT ROW 21A. REPLACED LAMP PER AMM 33-21-00-960-807. OP 'S CHK OK.
- [SDR CALA2024032200843](https://openairdocs.org/sdr/CALA2024032200843), Mar 21, 2024: TARGET. UNSECURE. LEADING EDGE FLAPS TRANSIT LIGHT ILLUMINATED ON DESCENT THEN ACTIONED QRH. DEBREIFED INBOUND CREW & RAN FLAPS UP & DOWN NO HELP LEADING TRANSIT LIGHT STILL ON U
- [SDR CALA2024011200085](https://openairdocs.org/sdr/CALA2024011200085), Jan 10, 2024: ENGINE. VIBRATION. ENGINE VIBRATION, VIBRATION HIGH ENGINE 2 MODERATE TO XCESSIVEVIBRATION ENG 2 AT CRZ STABILZD WITH NO AB IND RECURRED IN DESCENT ENG2 SN. 888650 (TSI=3004/ CSI=
- [SDR CALA2023110303268](https://openairdocs.org/sdr/CALA2023110303268), Oct 31, 2023: LIGHT. INOPERATIVE. ROW 29ABC EMERGENCY STOWBIN LIGHT INOP RELAMPED. OPS CK GOOD
- [SDR CALA2023032000798](https://openairdocs.org/sdr/CALA2023032000798), Mar 17, 2023: WINDOW FRAME. CRACKED. SUSPECT CRACK IN R3 WINDOW FRAME ON FWD. SIDE 2ND FASTENER FROM BOTTOM PERFORMED HFEC SURFACE INSPECTION OF L3 WINDOW FRAME AT SECOND FASTENER HOLE FROM THE BOT
- [SDR CALA2023032000797](https://openairdocs.org/sdr/CALA2023032000797), Mar 17, 2023: WINDOW FRAME. CRACKED. SUSPECT CRACK IN L3 WINDOW FRAME ON FWD. EDGE 2ND FASTENER FROM THE BOTTOM PERFORMED HFEC SURFACE INSPECTION OF L3 WINDOW FRAME AT SECOND FASTENER HOLE FROM THE
- [SDR CALA2023031300721](https://openairdocs.org/sdr/CALA2023031300721), Mar 13, 2023: WINDOW FRAME. CRACKED. SUSPECT CRACK IN R3 WINDOW FRAME ON FWD. SIDE 2ND FASTENER FROM BOTTOM PERFORMED HFEC SURFACE INSPECTION OF L3 WINDOW FRAME AT SECOND FASTENER HOLE FROM THE BOT
- [SDR CALA2023031300720](https://openairdocs.org/sdr/CALA2023031300720), Mar 13, 2023: WINDOW FRAME. CRACKED. SUSPECT CRACK IN L3 WINDOW FRAME ON FWD. EDGE 2ND FASTENER FROM THE BOTTOM PERFORMED HFEC SURFACE INSPECTION OF L3 WINDOW FRAME AT SECOND FASTENER HOLE FROM THE
- [SDR CALA2022100302638](https://openairdocs.org/sdr/CALA2022100302638), Oct 3, 2022: SKIN. CRACKED. FUSELAGE SKIN AT FRAME 737C BETWEEN STR 2L AND 2R CRACK DAMAGE.FOR REPAIR OF SKIN FRAME AT 737C BETWEEN FRAME 2L AND 2R (WORK ACCOMPLISHED BY V920656 AND AAR QC
- [SDR CALA2022100302614](https://openairdocs.org/sdr/CALA2022100302614), Oct 2, 2022: SKIN. UNKNOWN. ON OR BEFORE AUGUST 27, 2023, PERFORM AN INSPECTION OF THE EXTERNAL DOUBLER/TRIPLER REPAIRS TO THE FUSELAGE SKIN AT STA 727C, STR 3L ? 3R IN ACCORDANCE WITH PAR
- [SDR CALA2022100302613](https://openairdocs.org/sdr/CALA2022100302613), Oct 2, 2022: SKIN. UNKNOWN. ON OR BEFORE JUNE 26, 2023, OR THE ACCUMULATION OF 28,974 TOTAL AIRCRAFT FLIGHT CYCLES, WHICHEVER COMES FIRST, PERFORM AN INSPECTION OF THE EXTERNAL DOUBLER/TRI
- [SDR CALA2022083102230](https://openairdocs.org/sdr/CALA2022083102230), Aug 30, 2022: SKIN. NONE. DURING A C CHECK AT AAR-RFD, HEAVY CORROSION WAS FOUND ON THE LO WER SURFACE OF THE WING CENTER SECTION FORWARD LOWER SKIN PANEL (P/N 111A4102-7) AT STA 540 UND
- [SDR CALA2022082902213](https://openairdocs.org/sdr/CALA2022082902213), Aug 29, 2022: SKIN. CORRODED. HEAVY CORROSION WAS FOUND ON THE LOWER SURFACE OF THE WING CENTER SECTION FORWARD LOWER SKIN PANEL AT STA 540 UNDER THE LEFT-HAND DRAG LINK. PERFORMED REPAIR OF
- [SDR CALA2022082902201](https://openairdocs.org/sdr/CALA2022082902201), Aug 27, 2022: BATTERY. NONE. EMERGENCY LIGHTS CAPACTIY CHECK NO GOOD ON BATTERIES M1674 AND M 1669 (REF AAR NR 99939054).
- [SDR CALA2022082902195](https://openairdocs.org/sdr/CALA2022082902195), Aug 26, 2022: SKIN. NONE. BEGIN REPAIR AT L/H SIDE AT WASTE TANK VACUMM HOLE (REF AAR NR 9 9939552) 31-02932 INITIATE 2ND DIP FOR PLANNING TO CONTACT ENG FOR INSCPE CTION REQUIREMENTS ON
- [SDR CALA2022050901188](https://openairdocs.org/sdr/CALA2022050901188), May 9, 2022: NONE. FAULTY. TEMP PROBE LIGHT LIGHT ON PROBE P/N NIS EWR 29-3421-3-0006 GASKET P/N 29-3412-3-0007 AVIONICS UPDATE THERE IS NO POWER TO THE TAT PROBE AVIONICS T/S PER SSM 24-
- [SDR CALA2022050901169](https://openairdocs.org/sdr/CALA2022050901169), May 6, 2022: SHIFT MECHANISM. FAILED. STAB TRIM LITE ILLUMINATED IN FLIGHT WITH A SPEED TRIM FAILURE BOTH AIRCFAFT HAD TO BE FLOWN BY HAND NO AUTOPILOT PERFORMED STAB TRIM TEST, COLUMN SWITCHING MOD
- [SDR CALA2019102901851](https://openairdocs.org/sdr/CALA2019102901851), Oct 27, 2019: DRAIN MAST. SHEARED. PDA 2 REF LOG PAGE 3676794; AIRCRAFT ARRIVED IN SAT WITH LOWER 13 INCHES OF APU FUEL LINE SHROUD DRAIN MAST MISSING. MAST P/N IS 346A2801-3. CORRECTIVE ACTION I
- [SDR CALA2019062101005](https://openairdocs.org/sdr/CALA2019062101005), Jun 18, 2019: BULKHEAD WEB. CRACKED. FOUND 4EA.CRACKS ON RIGHT CENTER WING REAR SPAR VERTICAL RESSURE WEB1 CRACK STA.RBL 25-31.83. 1 CRACK STA RBL 31.83-40.2 CRACK S STA RBL 40-45.64. ALL CRACKS VE
- [SDR CALA2019062101002](https://openairdocs.org/sdr/CALA2019062101002), Jun 18, 2019: FRAME. WORN. AFT CARGO FRAME STA 747 RBL 15 BETWEEN STR 25R AND 26R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED REF ECRA 5310-07631
- [SDR CALA2019062210994](https://openairdocs.org/sdr/CALA2019062210994), Jun 18, 2019: FRAME. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME AT STA 440 BETWEEN S-8R AND S-9R HAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SUPPORT BRACKET (REPAIR PER W/C SEQ
- [SDR CALA2019062100993](https://openairdocs.org/sdr/CALA2019062100993), Jun 18, 2019: FRAME. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME AT STA 747 BETWEEN S-8R AND S-9R HAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SUPPORT BRACKET (REPAIR PER W/C SEQ
- [SDR CALA2019062210992](https://openairdocs.org/sdr/CALA2019062210992), Jun 18, 2019: FRAME. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME AT STA380 BETWEEN S-8R AND S-9R HAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SUPPORT BRACKET.
- [SDR CALA2019062210999](https://openairdocs.org/sdr/CALA2019062210999), Jun 18, 2019: FRAME. WORN. AFT CARGO FRAME STA 727C RBL 15 BETWEEN STR 25R AND 26R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED REF ECRA 5310-07631, SEE FLEETCYCLE L/P 9672870
- [SDR CALA2019062210998](https://openairdocs.org/sdr/CALA2019062210998), Jun 18, 2019: FRAME. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME AT STA 727D BETWEEN S-8L AN D S-9L HAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SU PPORT BRACKET (REPAIR PER W/C 
- [SDR CALA2019062210991](https://openairdocs.org/sdr/CALA2019062210991), Jun 17, 2019: FRAHM. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME BS 727D BETWEEN S-8L AND S-9L WAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SUPPORT BRACKET.
- [SDR CALA2019062100990](https://openairdocs.org/sdr/CALA2019062100990), Jun 17, 2019: FRAME. CRACKED. FRAME AT BS 500A BETWEEN S-8R AND S-9R CRACKED AT I /B FASTENER HOLE AC OUTLET EXTRUSION SUPPORT BRACKET. REPAIRED THE FRAME IAW ECRA 5 311-02138 AND EA 5310-04
- [SDR CALA2019062210989](https://openairdocs.org/sdr/CALA2019062210989), Jun 17, 2019: FRAME. CRACKED. FRAME AT STA 480 BETWEEN S-8R AND S-9R CRACK AT I/B FASTENER HOLE AC OUTLET EXTRUSION SUPPORT BRACKET. REPAIRED FUSELAGE FRAME IAW ECR A 5311-02138 AND EA5310-0
- [SDR CALA2019061700959](https://openairdocs.org/sdr/CALA2019061700959), Jun 15, 2019: FRAME. CRACKED. MAIN CABIN UPPER LOBE FUSELAGE FRAME AT STA 380 BETWEEN S-8L AND S-9L HAS CRACK AT I/B FASTENER HOLE FOR AC OUTLET EXTRUSION SUPP ORT BRACKET (REPAIR PER W/C SE
- [SDR CALA2019061400952](https://openairdocs.org/sdr/CALA2019061400952), Jun 14, 2019: FRAME. DAMAGED. AFT CARGO FRAME STA 727D RBL 15 BETWEEN STR 25R AND 26R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED AS REF ECRA 5310-07631 SEE FLEETCYCLE L/P 96728
- [SDR CALA2019061400951](https://openairdocs.org/sdr/CALA2019061400951), Jun 14, 2019: FRAME. DAMAGED. AFT CARGO FRAME STA 727A RBL 15 BETWEEN STR 25 R AND 26 R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED AS REF ECRA 5310-07631 SEE FLEETCYCLE L/P 967
- [SDR CALA2019061400950](https://openairdocs.org/sdr/CALA2019061400950), Jun 14, 2019: FRAME. DAMAGED. AFT CARGO FRAME STA 767 RBL 15 BETWEEN STR 25R AND 26R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED AS REF ECRA 5310-07631 SEE FLEETCYCLE L/P 967287
- [SDR CALA2019061400949](https://openairdocs.org/sdr/CALA2019061400949), Jun 14, 2019: FRAME. DAMAGED. AFT CARGO FRAME STA 727E RBL 15 BETWEEN STR 25R AND 26R ELONGATED HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED AS REF ECRA 5310-07631 SEE FLEETCYCLE L/P 96728
- [SDR CALA2019061400953](https://openairdocs.org/sdr/CALA2019061400953), Jun 14, 2019: FRAME. WORN. AFT CARGO FRAME STA 727B RBL 15 BETWEEN STR 25R AND 26R ELONGATE D HOLE WHERE SIDE PANEL ATTACHES. FRAME REPAIRED AS REF ECRA 5310-07631 REF FLEETCYCLE L/P 9672

All 65: https://openairdocs.org/aircraft/N15751/reports.md

## 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 CFM56-7B22 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

## Earlier aircraft with N15751

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N15751 before.

- [Cancelled 1970-02-06](https://openairdocs.org/deregistered/N15751-1970-02-06): Douglas C-47, S/N 15124. Exported to United Kingdom. Owner: [Aviation Enterprises Inc](https://openairdocs.org/faa-owner/AVIATION%20ENTERPRISES%20INC), [Cedarburg, WI](https://openairdocs.org/faa-place/WI/Cedarburg)
- [Cancelled 1939-05-15](https://openairdocs.org/deregistered/N15751-1939-05-15): Nash NASH CORBEN BABY ACE, S/N 27, built 1936. Owner: [Nash John](https://openairdocs.org/faa-owner/NASH%20JOHN), [Beckley, WV](https://openairdocs.org/faa-place/WV/Beckley)

## Related

- Other Boeing 737-71Q aircraft: https://openairdocs.org/model/boeing-737-71q/aircraft.md
- The CFM International CFM56-7B22 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b22-series.md

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