# N256WN: 2006 Boeing 737-7H4

- Status: Valid registration
- Airframe: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (registry code 1384404, 143 seats)
- Engine: [CFM International CFM56-7B24 series](https://openairdocs.org/engine/cfm-international-cfm56-7b24-series) (registry code 13044)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 32514
- Year built: 2006
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: September 27, 2006
- Certificate issued: October 24, 2006
- Expires: August 31, 2028
- Mode S code: A26FC9
- Registered owner: [Southwest Airlines Co](https://openairdocs.org/faa-owner/SOUTHWEST%20AIRLINES%20CO)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- Owner's area on the map: 32.8326° N, 96.8491° W: Placed by OpenAirDocs at the center of ZIP code 75235, 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=256WN
- Page: https://openairdocs.org/aircraft/N256WN

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 CFM56-7B24 model are included.

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

### Matched by airframe (Boeing 737-7H4)

None in force.

### Matched by engine (CFM International CFM56-7B24 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 (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA22LA134](https://openairdocs.org/ntsb/DCA22LA134), May 22, 2022: Boeing 737-700 (N256WN), Tacoma, WA, no damage. Probable cause: During cruise flight with no reported turbulence a passenger sustained a serious injury for an unknown reason.

## FAA accident and incident reports

None matched to N256WN.

## Service difficulty reports (263, 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 SWAA2026012964986](https://openairdocs.org/sdr/SWAA2026012964986), Jan 28, 2026: SMOKE DETECTOR. FALSE ACTIVATION. AFT LAVATORY SMOKE ALARM GOING OFF. NO SMOKE OR FIRE. OK TO CONTINUE IAW MEL 26-16-01 SP 3, & SP1B. R & R THE AFT LAVATORY SMOKE DETECTOR IAW AMM 26-14-01.
- [SDR SWAA2025110631261](https://openairdocs.org/sdr/SWAA2025110631261), Nov 3, 2025: LIGHT. INOPERATIVE. SIDEWALL LIGHTS INOPERATIVE FOLLOWING LOCATIONS: ROW 12 & 18 RH SIDE, ROW 14 LT SIDE. REPLACED THE LAMPS 12 AND 18 DEF AND 14 ABC SIDEWALL LIGHTS IAW AMM 33-21-
- [SDR SWAA2025081905554](https://openairdocs.org/sdr/SWAA2025081905554), Aug 17, 2025: LENS. DETACHED. RIGHT OVERWING EXIT FLOOR LEVEL EMERGENCY EXIT LIGHT COVER FELL OFF. REPLACED EMERGENCY EXIT LIGHT LENS AT FLOOR LEVEL IAW AMM 33-51-01.
- [SDR SWAA2025031002775](https://openairdocs.org/sdr/SWAA2025031002775), Mar 7, 2025: VAPOR BARRIER. CRACKED. CRACK IN RIGHT WHEEL WELL VAPOR BARRIER OF 11 INCHES AT STATION RBL 32.0 TO RBL 54.0 <[01] 01. - REMOVED AND REPLACED PER [SRM 57-10-10-1A-2-A00592 (CRACK - STO
- [SDR SWAA2025011787036](https://openairdocs.org/sdr/SWAA2025011787036), Jan 16, 2025: SIGN. DETACHED. EMERGENCY EXIT ROW OVERHEAD SIGN DETACHED FROM CEILING.<[01] RESECURED CENTER AISLE EMERGENCY EXIT SIGN REF AMM 33-51-01. AC OK FOR SERVICE
- [SDR SWAA2024121675592](https://openairdocs.org/sdr/SWAA2024121675592), Dec 10, 2024: GIRT BAR. OUT OF ADJUST. L1 GIRT BAR IS LOOSE IN DISARMED POSITION<[01] ADJUSTED GIRT BAR RETAINER CLIPS ON L1 DOOR IAW AMM 25-66-01. A/C OK FOR SERVICE.
- [SDR SWAA2024103054211](https://openairdocs.org/sdr/SWAA2024103054211), Oct 28, 2024: GIRT BAR. STUCK. FWD ENTRY GIRT BAR STUCK IN J HOOK<[01] 04 - REPAIRED PER [AMM 25-66-02-201-NG (FLOOR-MOUNTED ESCAPE SLIDE BRACKETS - MAINTENANCE PRACTICES - PERMANENT)]
- [SDR SWAA2024103153980](https://openairdocs.org/sdr/SWAA2024103153980), Oct 27, 2024: POTABLE WATER. CONTAMINATED. POTABLE H2O HAS A STRONG CHEMICAL SMELL. GALLEY & LAV WATER SHUT OFF. POTABLE H2O HAS A STRONG CHEMICAL SMELL.<
- [SDR SWAA2024100936768](https://openairdocs.org/sdr/SWAA2024100936768), Sep 11, 2024: WEB. CRACKED. CRACK INDICATION (1E/A) FOUND ON HORIZONTAL WEB ON BS 294.5 AT LEVEL STR 17 R FWD GALLEY AREA 2024-528896<[01] INSTALLED WEB LOCATED FROM BS 291 TO BS 332.10 AT
- [SDR SWAA2024100936297](https://openairdocs.org/sdr/SWAA2024100936297), Sep 10, 2024: SUPPORT ANGLE. CRACKED. CRACK SUPPORT ANGLE LOCATED BTW STA 380 TO STA 400 BL0 AT PASSENGER CABIN 2024-528893<[01] REPLACED SUPPORT ANGLE AND FASTENERS LOCATED BTW BS 380 TO BS 400 BL0
- [SDR SWAA2024100936298](https://openairdocs.org/sdr/SWAA2024100936298), Sep 10, 2024: SUPPORT ANGLE. CRACKED. CRACK SUPPORT ANGLE LOCATED BTW STA 380 TO STA 400 RBL 10 AT PASSENGER CABIN 2024-528894<[01] REPLACED SUPPORT ANGLE AND FASTENERS LOCATED BTW BS 380 TO BS 400 
- [SDR SWAA2024100936299](https://openairdocs.org/sdr/SWAA2024100936299), Sep 10, 2024: SUPPORT ANGLE. CRACKED. CRACK SUPPORT ANGLE LOCATED BTW STA 380 TO STA 400 RBL 41 AT PASSENGER CABIN 2024-528895<[01] REPLACED SUPPORT ANGLE AND FASTENERS LOCATED BTW BS 380 TO BS 400 
- [SDR SWAA2024100934986](https://openairdocs.org/sdr/SWAA2024100934986), Sep 6, 2024: SUPPORT ANGLE. CORRODED. CORROSION BILGE AREA SUPPORT ANGLE LOCATED AT BS 947.5 BTW STRG 25R AND STRG 25L AT AFT CARGO COMPARTMENT 2024-528883<[01] REPLACED SUPPORT ANGLE LOCATED AT BS 
- [SDR SWAA2024100934266](https://openairdocs.org/sdr/SWAA2024100934266), Sep 4, 2024: FLOOR SUPPORT. CRACKED. AAI REPORT: PASSENGER CABIN FLOOR STRUCTURE SUPPORT HAS CRACK STA 540 BL 0 TO RBL 24.75 2024-528872<[01] REPLACED PASSENGER CABIN FLOOR STRUCTURE SUPPORT AND FA
- [SDR SWAA2024100934267](https://openairdocs.org/sdr/SWAA2024100934267), Sep 4, 2024: FLOOR SUPPORT. CRACKED. AAI REPORT: PASSENGER CABIN FLOOR STRUCTURE SUPPORT HAS CRACK STA 540 BL 0 TO LBL 24.75 2024-528873<[01] REPLACED PASSENGER CABIN FLOOR STRUCTURE SUPPORT AND FA
- [SDR SWAA2024100933292](https://openairdocs.org/sdr/SWAA2024100933292), Sep 2, 2024: RIB. CRACKED. CRACK ON RIB 151.75 ACCESS PANEL 341B AT RT HORIZONTAL STABILIZER 2024-528854<[01] REPLACED RIB 151.75 ACCESS PANEL 341B AT RT HORIZONTAL STABILIZER I.A.W B737-
- [SDR SWAA2024100932829](https://openairdocs.org/sdr/SWAA2024100932829), Sep 1, 2024: BRACKET. ELONGATED. ELONGATED HOLE ON BRACKET ACCESS PANEL 651GB TRAILING EDGE AT RT WING 2024-528847<[01] REPLACED BRACKET LOCATED ON ACCESS PANEL 651GB TRAILING EDGE AT RT WING A
- [SDR SWAA2024100932832](https://openairdocs.org/sdr/SWAA2024100932832), Sep 1, 2024: ANGLE. CRACKED. CRACK ANGLE LOCATED STA 663.75 LBL54.21 AT AIR CONDITIONING BAY 2024-528851<[01] TOOLS USED: TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 142811020; DUE DA
- [SDR SWAA2024100944022](https://openairdocs.org/sdr/SWAA2024100944022), Aug 31, 2024: BRACKET. CORRODED. CORROSION ON BRACKET LOCATED BOOST PUMP TANK 1 TRAILING EDGE IRSS144 AT LT WING (2E/A) 2024-528820<[01] REPLACED BRACKET LOCATED BOOST PUMP TANK 1 TRAILING EDGE
- [SDR SWAA2024100932826](https://openairdocs.org/sdr/SWAA2024100932826), Aug 31, 2024: WEB. CRACKED. CRACK WEB BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16L AT FWD GALLEY AREA 2024-528790<[01] REPLACED WEB AND FASTENERS LOC. BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16
- [SDR SWAA2024100932519](https://openairdocs.org/sdr/SWAA2024100932519), Aug 30, 2024: STUB FRAME. BROKEN. BROKEN STUB FRAME LOWER AREA ON BS 294.5 AT LEVEL STR 17R AT FWD GALLEY AREA 2024-528710<[01] TOOL USED ON STEP 6 AND 7:EDDY CURRENT FLAW DETECTOR P/N:NORTEC 60
- [SDR SWAA2024100932517](https://openairdocs.org/sdr/SWAA2024100932517), Aug 30, 2024: SUPPORT ANGLE. BROKEN. BROKEN ANGLE - SUPPORT BTW BS 291.5 TO BS 294.5 AT LEVEL STR 17R AT FWD GALLEY AREA 2024-528709<[01] REMOVED AND DISCARDED ANGLE SUPPORT(CLIP) 141A8312-3 IAW B7
- [SDR SWAA2024100932518](https://openairdocs.org/sdr/SWAA2024100932518), Aug 30, 2024: TIE CLIP. CRACKED. CRACK TIE CLIP ON BS 270 AT STR 10R AT PASSENGER CABIN 2024-528708 CRACK TIE CLIP ON BS 277 AT STR 10R AT PASSENGER CABIN<[01] REPLACED TIE CLIP AND FASTENERS L
- [SDR SWAA2024100932520](https://openairdocs.org/sdr/SWAA2024100932520), Aug 30, 2024: FRAME. CRACKED. CRACK FRAME ON BS 312 BTW STR 5L TO STR 6L AT FWD GALLEY AREA 2024-528711<[01] PERFORMED TRIM OUT ON FRAME LOCATED AT BS 312 BTW STR 5L TO STR 6L AT FWD GALLEY 
- [SDR SWAA2024100932808](https://openairdocs.org/sdr/SWAA2024100932808), Aug 30, 2024: TEE ANGLE. CRACKED. CRACK T-ANGLE TRAILING EDGE LOCATED AT LEVEL ORSS279 AT RT WING 2024-528751<[01] REPLACED T-ANGLE TRAILING EDGE LOCATED AT LEVEL ORSS279 AT RT WING IAW B737-700
- [SDR SWAA2024100932809](https://openairdocs.org/sdr/SWAA2024100932809), Aug 30, 2024: ANGLE. CRACKED. CRACK T-ANGLE LOCATED ON TRAILING EDGE AT LEVEL IRSS211 AT RT WING 2024-528756<[01] REPLACED ANGLE LOCATED ON TRAILING EDGE AT LEVEL IRSS211 AT RT WING IAW B737
- [SDR SWAA2024100932806](https://openairdocs.org/sdr/SWAA2024100932806), Aug 30, 2024: ANGLE. CRACKED. CRACK ANGLE TRAILING EDGE LOCATED AT LEVEL ORSS287 AT RT WING 2024-528748<[01] REPLACED ANGLE TRAILING EDGE AND FASTENERS LOCATED AT LEVEL ORSS287 AT RT WING IA
- [SDR SWAA2024100932801](https://openairdocs.org/sdr/SWAA2024100932801), Aug 30, 2024: BRACKET. CRACKED. CRACK SUPPORT BRACKET LOCATE BS540 AND RBL7 AT CENTER WING BOX 2024-528723<[01] OK TO INSTALL NEW BRACKET AND FASTENERS LOCATED BS 540 AND RBL 7 CENTER WING BOX
- [SDR SWAA2024100932802](https://openairdocs.org/sdr/SWAA2024100932802), Aug 30, 2024: BRACKET. CRACKED. CRACK SUPPORT BRACKET LOCATED BS540 AND LBL7 AT CENTER WING BOX 2024-528725<[01] OK TO INSTALL NEW BRACKET AND FASTENERS BS 540 AND LBL 7 CENTER WING BOX;[02] C
- [SDR SWAA2024100932158](https://openairdocs.org/sdr/SWAA2024100932158), Aug 29, 2024: FLOORBEAM. CORRODED. CORROSION FLOOR BEAM ON BS 277 AT LEVEL STR 17L AND LBL 13 AT FWD GALLEY AREA 2024-528652 CORROSION FLOOR BEAM ON BS 277 AT LEVEL STR 17L AND LBL 13 AT FWD GALL
- [SDR SWAA2024100931978](https://openairdocs.org/sdr/SWAA2024100931978), Aug 29, 2024: WEB. CRACKED. CRACK WEB BTW BS 312 TO BS 328 AT RBL 31 AT FWD GALLEY AREA 2024-528618<[01] REPLACED WEB AND FASTENERS BTW BS 312 TO BS 328 AT RBL 31 AT FWD GALLEY AREA I.A.W 
- [SDR SWAA2024100931981](https://openairdocs.org/sdr/SWAA2024100931981), Aug 29, 2024: WEB. CRACKED. CRACK WEB BTW BS 270 TO BS 294.5 AT BL 0 AT FWD GALLEY AREA 2024-528620<[01] REPLACED WEB AND FASTENERS BTW BS 270 TO BS 294.5 AT BL 0 AT FWD GALLEY AREA I.A.W 
- [SDR SWAA2024100931980](https://openairdocs.org/sdr/SWAA2024100931980), Aug 29, 2024: FLOOR SUPPORT. CORRODED. CORROSION FLOOR STRUCTURE STIFFENER LOCATED BTW BS 294.5 TO BS 312 AT LEVEL STR 17L AND LBL 13 AT FWD GALLEY AREA 2024-528619<[01] REPLACED FLOOR STRUCTURE INTE
- [SDR SWAA2024100932156](https://openairdocs.org/sdr/SWAA2024100932156), Aug 29, 2024: WEB. CRACKED. CRACK WEB BTW BS 344 TO BS 360 AT BL 0 AT FWD GALLEY AREA 2024-528623<[01] REPLACED WEB AND FASTENERS BTW BS 344 TO BS 360 AT BL 0 AT FWD GALLEY AREA I.A.W B737
- [SDR SWAA2024100931979](https://openairdocs.org/sdr/SWAA2024100931979), Aug 29, 2024: STIFFENER. CORRODED. CORROSION FLOOR STRUCTURE STIFFENER LOCATED BTW BS 263 TO BS 270 AT LEVEL STR 17L AND LBL 12 AT FWD GALLEY AREA 2024-528621<[01] REPLACED STIFFENER LOCATED BETW
- [SDR SWAA2024100932157](https://openairdocs.org/sdr/SWAA2024100932157), Aug 29, 2024: SUPPORT ANGLE. CORRODED. CORROSION FLOOR STRUCTURE Z ANGLE BTW BS 312 TO BS 344 AT LEVEL STR 17L AND LBL 60 AT FWD GALLEY AREA 2024-528649<[01] REPLACED Z ANGLE AND FASTENERS LOCATED FL
- [SDR SWAA2024100932155](https://openairdocs.org/sdr/SWAA2024100932155), Aug 29, 2024: STIFFENER. CORRODED. CORROSION FLOOR STRUCTURE STIFFENER BTW BS 312 TO BS 328 AT LEVEL STR 17L AND LBL 12 AT FWD GALLEY AREA 2024-528622<[01] REPLACED STRUCTURE STIFFENER AND FASTEN
- [SDR SWAA2024100931734](https://openairdocs.org/sdr/SWAA2024100931734), Aug 28, 2024: FLOORBEAM. CORRODED. CORROSION FLOOR BEAM LOCATED BS986.5 LBL42 WL208.1 AT AFT GALLEY AREA 2024-528596<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 220272512;
- [SDR SWAA2024100931740](https://openairdocs.org/sdr/SWAA2024100931740), Aug 28, 2024: FLOORBEAM. CRACKED. CRACK FLOOR BEAM LOCATED BS328 RBL20 AT FWD GALLEY AREA 2024-528603<[01] STEP 7. EDDY CURRENT EQUIPMENT USED P/N: NORTE 600D; S/N: 220272712 AND DUE DATE: 28-NO
- [SDR SWAA2024100931739](https://openairdocs.org/sdr/SWAA2024100931739), Aug 28, 2024: FLOORBEAM. CORRODED. CORROSION FLOOR BEAM LOCATED BS294.5 BL0 WL208.1 AT FWD GALLEY AREA 2024-528605<[01] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE
- [SDR SWAA2024100931741](https://openairdocs.org/sdr/SWAA2024100931741), Aug 28, 2024: FLOORBEAM. CRACKED. CRACK FLOOR BEAM LOCATED BS294.5 RBL53 AT FWD GALLEY AREA 2024-528602<[01] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE: 23-JAN-2
- [SDR SWAA2024100931737](https://openairdocs.org/sdr/SWAA2024100931737), Aug 28, 2024: FLOORBEAM. CORRODED. CORROSION FLOOR BEAM LOCATED BS986.5 BTW RBL35 TO RBL44 WL208.1 AT AFT GALLEY AREA 2024-528597<[01] TOOL USED ON STEPS 8; 9 AND 10 ET EQUIPMENT: P/N: NORTEC 600
- [SDR SWAA2024100931738](https://openairdocs.org/sdr/SWAA2024100931738), Aug 28, 2024: RIB. CRACKED. CRACK INSPAR RIB 120.30 LOCATED AT 28.5 INCHES OF FRONT SPAR AT LT HORIZONTAL STABILIZER 2024-528600<[01] STEPS 3 AND 4 TOOL USED EDDY CURRENT EQUIPMENT P/N: NO
- [SDR SWAA2024100931736](https://openairdocs.org/sdr/SWAA2024100931736), Aug 28, 2024: RIB. CRACKED. CRACK INSPAR RIB 120.30 LOCATED AT 36 INCHES OF FRONT SPAR AT LT HORIZONTAL STABILIZER 2024-528601<[01] STEPS 3 AND 4 TOOL USED EDDY CURRENT EQUIPMENT P/N: NORT
- [SDR SWAA2024100931359](https://openairdocs.org/sdr/SWAA2024100931359), Aug 27, 2024: WEB. CORRODED. CORROSION WEB - INTERCOSTAL LOCATED BTW BS747 TO BS767 RBL21 WL156 AT AFT CARGO COMPARTMENT 2024-528552<[01] REPLACED WEB LOCATED BTW BS747 TO BS767 RBL 21 WL 1
- [SDR SWAA2024100931356](https://openairdocs.org/sdr/SWAA2024100931356), Aug 27, 2024: CARGO TRACK. CRACKED. CRACK TRACK RBBL 13.84 LOCATED BS767 AFT CARGO COMPARTMENT 2024-528547<[01] STEP 5 TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N: 220273012;CAL DUE DAT
- [SDR SWAA2024100931358](https://openairdocs.org/sdr/SWAA2024100931358), Aug 27, 2024: INTERCOSTAL. CORRODED. CORROSION WEB - INTERCOSTAL LOCATED BTW BS767 TO BS787 RBL7 WL156 AT AFT CARGO COMPARTMENT 2024-528553<[01] REPLACED WEB-INTERCOSTAL AND FASTENERS LOCATED BETWE
- [SDR SWAA2024100931357](https://openairdocs.org/sdr/SWAA2024100931357), Aug 27, 2024: WEB. CORRODED. CORROSION WEB LOCATED BTW BS767 TO BS794.3 RBL 21 WL156 AT AFT CARGO COMPARTMENT 2024-528554<[01] REPLACED WEB LOCATED BTW BS767 TO BS794.3 RBL 21 WL156 AT AFT 
- [SDR SWAA2024100931128](https://openairdocs.org/sdr/SWAA2024100931128), Aug 27, 2024: ANGLE. CRACKED. CRACK ANGLE - CLIP LOCATED BS 400 LBL24 FWD CARGO COMPARTMENT 2024-528526<[01] REPLACED ANGLE - CLIP LOCATED BS 400 LBL24 FWD CARGO COMPARTMENT IAW B737-700 SRM
- [SDR SWAA2024100931131](https://openairdocs.org/sdr/SWAA2024100931131), Aug 27, 2024: ANGLE. CRACKED. CRACK ANGLE - CLIP LOCATED BS500C LBL 24 FWD CARGO COMPARTMENT 2024-528533<[01] ANGLE-CLIP AND FASTENERS LOCATED BS500C LBL 24 FWD CARGO COMPARTMENT IAW B737-70

All 263: https://openairdocs.org/aircraft/N256WN/reports.md

## STCs that may be installed (OpenAirDocs) (32)

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 airframe (Boeing 737-7H4)

- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC SA4842SW](https://openairdocs.org/stc/SA4842SW): Modification of air to air heat exchanger (P/N 182820-2 Series 2). Honeywell International Inc. Lists 737 Series
- [STC SA270NW](https://openairdocs.org/stc/SA270NW): Installation of modified seat. Aviation Technical Services. Lists 737 Series
- [STC ST01162NY](https://openairdocs.org/stc/ST01162NY): Installation of Literature Pockets. Magee Plastics Company. Lists 737 Series
- [STC SA2607SO](https://openairdocs.org/stc/SA2607SO): Installation of coffee maker P/N 416-1001-29. B/E Aerospace Inc. Lists 737 Series
- [STC SA2608SO](https://openairdocs.org/stc/SA2608SO): Installation of rail assembly, P/N 416-0201-15. B/E Aerospace Inc. Lists 737 Series
- [STC SA3058SO](https://openairdocs.org/stc/SA3058SO): Installation of coffee maker 416-0001-23 and rail assembly 416-0201-5. B/E Aerospace Inc. Lists 737 Series
- [STC ST01476AT](https://openairdocs.org/stc/ST01476AT): Installation of coffee maker. B/E Aerospace Inc. Lists 737 Series
- [STC ST01778AT](https://openairdocs.org/stc/ST01778AT): Installation of espresso maker p/n 3510-0066-01. B/E Aerospace Inc. Lists 737 Series
- [STC SA629GL](https://openairdocs.org/stc/SA629GL): Installation of Grimes galley, Model 1545LW unit 2 and unit 4. B/E Aerospace. Lists 737 Series
- [STC ST01332AT](https://openairdocs.org/stc/ST01332AT): Installation of Galley Service Carts. Champ International, Inc. Lists 737 Series
- [STC ST09870SC](https://openairdocs.org/stc/ST09870SC): Installation of Mechanical Window Shades. Lou Martin & Associates. Lists 737 Series
- [STC ST00033AT](https://openairdocs.org/stc/ST00033AT): Installation of a single Mode S system and provisions for a TCAS II system. General Aerospace, Inc. Lists 737 Series
- [STC SA4532NM](https://openairdocs.org/stc/SA4532NM): Installation of Coltech, CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST4532NM](https://openairdocs.org/stc/ST4532NM): Installation of Coltech CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST00774NY](https://openairdocs.org/stc/ST00774NY): Installation of a passenger cabin Liquor/beverage service cart P/N E500170. (757-222) (767-222) (727-222) (737 SERIES 222, 291, 322, 522) (747-100 SERIES 238B). Driessen Aircraft Interior Systems USA, Inc. Lists 737 Series
- [STC ST02052AT](https://openairdocs.org/stc/ST02052AT): Installation of a single Collins GNLU910A flight management system, along with global navigation satellite system sensor. General Aerospace, Inc. Lists 737 Series
- [STC SA02034AT](https://openairdocs.org/stc/SA02034AT): Manufacture of tray carrier, P/N 2282-506. BFE Services. Lists 737 Series
- [STC ST01968AT](https://openairdocs.org/stc/ST01968AT): Manufacture of inserts for galley stowage. JK Aerospace, Inc. Lists 737 Series
- [STC SA01916AT](https://openairdocs.org/stc/SA01916AT): Manufacture of Tray Carrier P/N 1839-501. BFE Services. Lists 737 Series
- [STC SA2534SO](https://openairdocs.org/stc/SA2534SO): Installation of window shades, acoustic panes and reveals. Magee Plastics Company. Lists 737 Series
- [STC ST179CH](https://openairdocs.org/stc/ST179CH): Installation of cargo container curtain. Plastic Composites Corp. Lists 737 Series
- [STC SA00056LA](https://openairdocs.org/stc/SA00056LA): Installation of Weber Coffeemaker, P/N 870130-415. Monogram Systems. Lists 737 Series
- [STC SA6090NM](https://openairdocs.org/stc/SA6090NM): Installation of emergency vision assurance system (EVAS). VisionSafe Corporation. Lists 737 Series
- [STC SA370NW](https://openairdocs.org/stc/SA370NW): Removal of passenger interior, installation of cargo compartment liners and cargo tie down equipment. Western Metal Products. Lists 737 Series
- [STC SA2589CE](https://openairdocs.org/stc/SA2589CE): Install Bennetts Seat Converter Stowage Compartment on passenger seat(s). John's Aircraft and Upholstery. Lists 737 Series
- [STC SA1029NW](https://openairdocs.org/stc/SA1029NW): Installation of a cargo system. Western Metal Products. Lists 737 Series
- [STC SA1258EA](https://openairdocs.org/stc/SA1258EA): Installation of Cosco model78-( ) child restraint system. (172M S/N 17263459 - 17267584). Miller Stuart R. Lists 737 Series
- [STC SA1052SO](https://openairdocs.org/stc/SA1052SO): Installation of GE battery P/N43B022RB36 in place of Marathon P/N CA-727-7, CA-727-20, or CA-27-20 batteries or SAFT P/N23180 batteries; or installation of GE battery P/N 43B020RB10 replacing Marathon P/N CA-727-7, CA-727-20 or CA-27-20 or SAFT P/N 23186 or 23180 batteries. General Electric Company. Lists 737 Series
- [STC SA1082NW](https://openairdocs.org/stc/SA1082NW) (historical): Installation of auxiliary fuel tanks in the aft cargo compartment. (737 series -2K9A). Rogerson ATS. Lists 737 Series

### Approved for the engine (CFM International CFM56-7B24 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 737-7H4 aircraft: https://openairdocs.org/model/boeing-737-7h4/aircraft.md
- The CFM International CFM56-7B24 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b24-series.md

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