# N257WN: 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: 32515
- Year built: 2006
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: September 23, 2006
- Certificate issued: October 25, 2006
- Expires: August 31, 2028
- Mode S code: A27380
- 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=257WN
- Page: https://openairdocs.org/aircraft/N257WN

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

None matched to N257WN.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20100929050279I](https://openairdocs.org/incident/20100929050279I), Sep 29, 2010: Boeing 737-7H4 (N257WN), Los Angeles, CA, No damage. Aircraft entered unpredicted turbulence during descent for landing lax. An A320 Airbus did cross below and at an angle to the southwest aircraft's flight path.…

## Service difficulty reports (305, 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 SWAA2026072026224](https://openairdocs.org/sdr/SWAA2026072026224), Jun 24, 2026: CROSSBEAM. CRACKED. PANEL BRAKE AT BS 540 RBL 1 TO RBL 25 WL 208 IS CRACK. REMOVED AND REPLACED THE BREAK PANEL AT BS 540 RBL 1 TO RBL 25 WL IAW SRM 51-40--02-0G-0, AND DWG 143A006
- [SDR SWAA2026071943097](https://openairdocs.org/sdr/SWAA2026071943097), Jun 22, 2026: ISOLATOR. DAMAGED. LEFT EMERGENCY EXIT UPPER LINER ATTACH ISOLATOR IS DAMAGED. R & R LT EMERGENCY EXIT UPPER LINER ATTACH ISOLATOR IAW SRM 51-40-02.
- [SDR SWAA2026072063670](https://openairdocs.org/sdr/SWAA2026072063670), Jun 15, 2026: CROSSBEAM. CRACKED. CRACKED PANEL BRAKE AT LBL 1 BS 540 WL 208. REMOVED AND REPLACED BREAK PANEL AT LBL 1 BS 540 WL 208 IAW SRM 51-40-02-OG-0 AND DWG 143A0060 SHEET:46 REV-.
- [SDR SWAA2026072077412](https://openairdocs.org/sdr/SWAA2026072077412), Jun 12, 2026: BULKHEAD. CRACKED. CRACKED LOWER RT COMPOSITE BULKHEAD, BS 663, RBL 33, WL 164. CRACK AT LOWER R/H COMPOSITE BULKHEAD AT BS663 RBL33 WL164 WAS FOUND TO BE WITHIN ALLOWABLE DAMAGE 
- [SDR SWAA2026072003003](https://openairdocs.org/sdr/SWAA2026072003003), Jun 12, 2026: SEAT TRACK. CORRODED. CORROSION ON PASSENGER CABIN SEAT TRACK AT BS 846 - 850 ON CROWN AND WELL, BS 858 ON CROWN AND WELL, BS 887 ON CROWN LBL45 WL208. REMOVED CORROSION ON PASSENGER
- [SDR SWAA2026072060924](https://openairdocs.org/sdr/SWAA2026072060924), Jun 12, 2026: SEAT TRACK. CORRODED. CORROSION ON PASSENGER CABIN SEAT TRACK AT BS 500C+8 ON CROWN, BS 500B+9 ON CROWN, BS 561 ON CROWN, BS 581 ON CROWN & WELL, BS 611 ON CROWN, BS 632 ON CROWN, BS
- [SDR SWAA2026072012087](https://openairdocs.org/sdr/SWAA2026072012087), Jun 12, 2026: SEAT TRACK. CORRODED. CORROSION ON PASSENGER CABIN SEAT TRACK AT BS 400-404 ON CROWN AND BS 432-434 ON CROWN LBL25 WL208. REMOVED CORROSION ON PASSENGER CABIN SEAT TRACK AT BS 400-40
- [SDR SWAA2026072093568](https://openairdocs.org/sdr/SWAA2026072093568), Jun 11, 2026: SKIN. BULGED. RIGHT HORIZONTAL STAB UPPER SKIN BULGING AT OTBD T/E PANEL. REPAIRED IAW EA 26-155-01648 WITH AN INSPECTION THRESHOLD DEFINED IN 26-155-01648-DTI..
- [SDR SWAA2026072024604](https://openairdocs.org/sdr/SWAA2026072024604), Jun 11, 2026: RIB. CRACKED. RIGHT HORIZONTAL STAB, CRACKED AT INSPAR RIB 4 , STAB STA 120.30, STIFFENER 4 LOWER AREA. REMOVED, REPAIR, AND REINSTALLED RT STAB 4 RIB SS 120.30 IAW SRM 51-40
- [SDR SWAA2026072093453](https://openairdocs.org/sdr/SWAA2026072093453), Jun 11, 2026: WEDGE. DEBONDED. LEFT INBD MID FLAP OTBD T/E WEDGE TRAILING EDGE, DISBONDED. REMOVED AND REPLACED LEFT, INBD MID FLAP OTBD T/E EDGE WEDGE IAW SRM 51-40-02-0G-0, CMM 20-50-11-910
- [SDR SWAA2026072024158](https://openairdocs.org/sdr/SWAA2026072024158), Jun 11, 2026: FLOOR PANEL. DELAMINATED. PASSENGER CABIN FLOOR PANEL 232SF HAS AREA OF DELAMINATION. FABRICATION OF NEW 232SF PANEL REPLACEMENT HAS BEEN ACCOMPLISHED IAW SRM 53-00-50-2R-0.
- [SDR SWAA2026072080575](https://openairdocs.org/sdr/SWAA2026072080575), Jun 10, 2026: SHIELD. CORRODED. CORROSION AFT CARGO BAY SHIELD FWD OF CARGO DOOR AROUND MULTIPLE NUT PLATE HOLES BS 767+3 - 794, RBL 22, WL 156. CORROSION ON AFT CARGO BAY SHIELD FWD OF CARGO 
- [SDR SWAA2026072028123](https://openairdocs.org/sdr/SWAA2026072028123), Jun 10, 2026: SIDEWALL SUPPORT. CORRODED. CORROSION AFT CARGO BAY LT FLOOR TO SIDEWALL SUPPORT PLATE MULTIPLE AREAS AROUND NUT PLATE HOLES BS 727B - 767, LBL 22, WL 156. REMOVED AND REPLACED FLOOR TO SI
- [SDR SWAA2026072062760](https://openairdocs.org/sdr/SWAA2026072062760), Jun 10, 2026: SIDEWALL SUPPORT. CORRODED. CORROSION AFT CARGO BAY RT FLOOR TO SIDEWALL SUPPORT PLATE HAS MULTIPLE AREAS AROUND NUT PLATE HOLES BS 727B - 767, RBL 22, WL 156. REMOVED AND REPLACED AFT CAR
- [SDR SWAA2026072081615](https://openairdocs.org/sdr/SWAA2026072081615), Jun 10, 2026: PRESSURE DECK. CRACKED. CRACK ON HORIZONTAL PRESSURE DECK IN MID PASSENGER CABIN AT BS 663, RBL 41. REPAIRED THE HORIZONTAL PRESSURE DECK BS 663 - 675, RBL 40 AND RBL 60. APPLIED CUP S
- [SDR SWAA2026072018354](https://openairdocs.org/sdr/SWAA2026072018354), Jun 10, 2026: THRESHOLD WEB. CORRODED. CORROSION FWD CARGO BAY SUB THRESHOLD WEB MULTIPLE AREAS AROUND NUT PLATE HOLES BS 440+5' - 490, RBL 26, WL156. CORROSION ON FWD CARGO BAY SUB THRESHOLD WEB FOU
- [SDR SWAA2026072001893](https://openairdocs.org/sdr/SWAA2026072001893), Jun 9, 2026: SCUFF PLATE. CRACKED. FWD SERVICE DOOR SCUFFPLATE AFT CORNER IS CRACKED. WELDED FWD SERVICE DOOR SCUFFPLATE AFT CORNER PER SRM 53-10-15-2R-2.
- [SDR SWAA2026060207248](https://openairdocs.org/sdr/SWAA2026060207248), May 29, 2026: ISOLATOR. CRACKED. AFT ENTRY DOOR FWD UPPER SLIDE ISOLATOR CRACKED. R&R AFT ENTRY DOOR FWD UPPER SLIDE ISOLATOR IAW SRM 51-40-02.
- [SDR SWAA2025090510629](https://openairdocs.org/sdr/SWAA2025090510629), Sep 3, 2025: GLOWSTRIP. UNSECURE. PASSENGER CABIN SEAT ROW 24ABC PHOTOLUMINESCENT STRIP DISBONDED FROM FLOOR. SECURED LOOSE PHOTOLUMINESCENCE STRIP PER AMM 33-51-15.
- [SDR SWAA2025041423519](https://openairdocs.org/sdr/SWAA2025041423519), Apr 11, 2025: GIRT BAR. OUT OF ADJUST. AFT GALLEY SERVICE DOOR GIRT HANGING TOO LOW.<[01] RE-PACKED AFT GALLEY SERVICE DOOR GIRT REF AMM 25-66-01.
- [SDR SWAA2025041423518](https://openairdocs.org/sdr/SWAA2025041423518), Apr 11, 2025: LIGHT. INOPERATIVE. PASSENGER CABIN; EMERGENCY LIGHT ABOVE SEAT 9ABC INOP.<[01] R&R PASSENGER CABIN AREA EMERGENCY LIGHT ABOVE SEAT 9ABC IAW AMM 33-51-03.
- [SDR SWAA2025041423528](https://openairdocs.org/sdr/SWAA2025041423528), Apr 11, 2025: HANDLE. LOOSE. R2 DOOR INTERIOR OPEN/CLOSE HANDLE LOOSE.<[01] RE-SECURED CAM ASSEMBLY NUT ON R2 DOOR INTERIOR HANDLE REF AMM 20-50-11.
- [SDR SWAA2025032609546](https://openairdocs.org/sdr/SWAA2025032609546), Mar 26, 2025: GIRT BAR. OUT OF ADJUST. PERFORM PERMANENT REPAIR OF L1 GIRT BAR RETAINING CLIP MISSING FASTNER. REFERENCE M-23-125-01839-TLD (SWA - REPAIR - NG DOOR SLIDE COVER GIRT BAR RETAINER CLIP 
- [SDR SWAA2025032408538](https://openairdocs.org/sdr/SWAA2025032408538), Mar 23, 2025: HOOK. LOOSE. L1 DOOR ESCAPE SLIDE GIRT BAR J HOOK IS LOOSE<[01] REPAIRED PER EA M-23-125-01839. REF AMM 26-66-00
- [SDR SWAA2025012790033](https://openairdocs.org/sdr/SWAA2025012790033), Jan 27, 2025: HANDLE. BROKEN. FWD ENTRY DOOR ASSIST HANDLE BROKEN<[01] SWAPPED AFT LAV ASSIST HANDLE TO THE FWD ENTRY DOOR POSITION. AFT LAV ASSIST HANDLE IS OK TO CONTINUE PER MEL 25-10-01 
- [SDR SWAA2024112561328](https://openairdocs.org/sdr/SWAA2024112561328), Nov 19, 2024: HANDLE. BROKEN. FWD ENTRY DOOR UPPER ASSIT HANDLE BROKEN<[01] REMOVED AND REPLACED FWD ENTRY DOOR UPPER ASSIST HANDLE PER AMM 52-11-31.
- [SDR SWAA2024112161334](https://openairdocs.org/sdr/SWAA2024112161334), Nov 19, 2024: ISOLATOR. CRACKED. FWD SERVICE DOOR LOWER AFT SLIDE ISOLATOR IS CRACKED<[01] R&R FWD SERVICE DOOR LOWER AFT SLIDE ISOLATOR PER SRM 51-40-02
- [SDR SWAA2024111157562](https://openairdocs.org/sdr/SWAA2024111157562), Nov 7, 2024: FLAP SYSTEM. LOCKED. NO FLAP RESPONSE WHEN FLAP HANDLE SET TO 5. ALTERNATE EXTENSION WORKED PROPERLY. FLAPS 15 LANDING.<[01] CHECKED FSEU FOR LOGGED FAULTS. NONE FOUND. OPERATED FLA
- [SDR SWAA2024101446415](https://openairdocs.org/sdr/SWAA2024101446415), Oct 8, 2024: LENS. MISSING. EMERGENCY EXIT LIGHT AT RH EMERGENCY EXIT FLOOR LEVEL LENS MISSING<[01] R&R?D LIGHT ASSAY PER AMM 33-51-01
- [SDR SWAA2024100444000](https://openairdocs.org/sdr/SWAA2024100444000), Oct 1, 2024: SLIDE. OUT OF POSITION. FWD SERVICE DOOR SLIDE OUT OF POSITION<[01] REPOSITIONED FWD SERVICE DOOR SLIDE IAW MT725-611-06.;[02] REPOSITIONED FWD SERVICE DOOR SLIDE IAW MT725-61-06. CORR
- [SDR SWAA2024092741366](https://openairdocs.org/sdr/SWAA2024092741366), Sep 25, 2024: FLASHLIGHT. INOPERATIVE. AFT GALLEY FLASHLIGHT NOT CHARGING. R&R FLASHLIGHT ASSY REF AMM 25-64-00. CKS GOOD.
- [SDR SWAA2024081322544](https://openairdocs.org/sdr/SWAA2024081322544), Aug 5, 2024: BULB. INOPERATIVE. L/H OWE AFT EMERGENCY EXIT WINDOW BULB INOP<[01] RELAMPED L/H OWE AFT EMERGENCY EXIT WINDOW LIGHT BULB IAW AMM 33-21-00-960-801 AND PERFORMED GOOD INSTALLATION 
- [SDR SWAA2024081322545](https://openairdocs.org/sdr/SWAA2024081322545), Aug 5, 2024: BATTERY PACK. INOPERATIVE. EMERGENCY EXIT LIGHTS ASSOCIATED TO BATTERY PACK M1674 INOP<[01] VERIFIED STEPS 1-3;[02] VERIFIED STEP 3.;[03] UPDATED PARTS INFO;[04] REMOVED AND REPLACED BATT
- [SDR SWAA2024081322546](https://openairdocs.org/sdr/SWAA2024081322546), Aug 5, 2024: BULB. INOPERATIVE. R/H OWE AFT LOCATOR HAS MULTIPLE BULBS INOP 3 TOTAL INOP<[01] RELAMPED R/H EMERGENCY OWE AFT LOCATOR AND PERFORMED GOOD TEST PER AMM 33-51-01-960-801.;[02] VERI
- [SDR SWAA2024081321931](https://openairdocs.org/sdr/SWAA2024081321931), Aug 3, 2024: SCUFF PLATE. CRACKED. ACB DOOR AFT CORNER SCUFF PLATE CRACKED<[01] REMOVED; REPAIRED AND REINSTALLED SCUFF PLATE IAW SRM 53-60-15 AND AMM 53-11-02<BR>LEAK CHECK ACCOMPLISHED ON TTG8Q
- [SDR SWAA2024081321424](https://openairdocs.org/sdr/SWAA2024081321424), Aug 1, 2024: BRACKET. CORRODED. CORROSION ON FWD ENTRY GIRT BAR FITTING SUPPORT BRACKET AT STA 312; LBL 55; WL 208.5<[01] FWD ENTRY GIRT BAR FITTING SUPPORT BRACKET AT STA 312; LBL 55; WL 208.
- [SDR SWAA2024081320827](https://openairdocs.org/sdr/SWAA2024081320827), Aug 1, 2024: WIRE. DAMAGED. WIRE W2214-0021-20 FOUND DAMAGED ABOVE L1 DOOR (MARKED).<[01] SPLICED WIRE W2214-0021-20 AND SECURED PER SWPM 20-30-12 AND 20-10-13. AND PERFORMED GOOD CONTINUI
- [SDR SWAA2024081316718](https://openairdocs.org/sdr/SWAA2024081316718), Jul 25, 2024: STRAP. CORRODED. AFT CARGO BAY FLOOR PNL T-STRAP HAS CORROSION BS 727D+5 LBL 20 - RBL 20<[01] RECIVED 'T' STRAP 146A9401-8ATSMRO; GOING TO BE INSTALL ON W/C TTG8Q00U29VL;[02] VE
- [SDR SWAA2024081315972](https://openairdocs.org/sdr/SWAA2024081315972), Jul 24, 2024: INTERCOSTAL. CRACKED. FOUND INTERCOSTAL COMMON TO FLOOR TO SIDEWALL SUPPORT AT ACB CRACK AT BS747-767; BETWEEN STR25-STR26 RBL21-23.<[01] REMOVED AND REMPLACED INTERCOSTAL AT ACB BET
- [SDR SWAA2024081314768](https://openairdocs.org/sdr/SWAA2024081314768), Jul 21, 2024: FAIRING. DELAMINATED. #3 FLAP MOVEABLE FAIRING; FORWARD INBOARD EDGE DELAMINATED 542BB<[01] VERIFIED THE REPAIR AT THE FORWARD EDGE OF FAIRING 542BB IS COMPLETE IAW EA 24-157-02035;[
- [SDR SWAA2024081314296](https://openairdocs.org/sdr/SWAA2024081314296), Jul 19, 2024: STUB FRAME. CRACKED. R1 DOOR FWD CUTOUT HAS CRACKED FRAME AND DEPRESSOR<[01] REMOVED AND REPLACED R1 DOOR FWD CUTOUT STUB FRAME AND DEPRESSOR ER SRM 51-40-02-0G-0 AND BOEING DWG 141
- [SDR SWAA2024081313771](https://openairdocs.org/sdr/SWAA2024081313771), Jul 17, 2024: INTERCOSTAL. CRACKED. AFT MOISTURE SEAL INTERCOSTAL CRACKED BS 1021 RBL 37 WL 209<[01] REMOVED AND REPLACED INTERCOSTAL FROM RBL 26 TO RBL 44 BS 1021 WL 209 PER SRM 51-40-02-0G-0 AND
- [SDR SWAA2024081312036](https://openairdocs.org/sdr/SWAA2024081312036), Jul 12, 2024: SKIN. CORRODED. LWR FUSELAGE SKIN - FWD ANTENNA COVER PLATE AND SKIN HAVE EVIDENCE OF CORROSION AT STA 410; STR 27L.<[01] PARTIAL UPDATED STEPS 1 AND 2.;[02] JOB COMPLETE.
- [SDR SWAA2024080912038](https://openairdocs.org/sdr/SWAA2024080912038), Jul 12, 2024: INTERCOSTAL. CRACKED. PASSENGER CABIN; L-1 DOOR; FWD SIDE; STRUCTURAL INTERCOSTAL HAS CRACK BTW STA 294.5 & 303.9; STR 16L. MARKED.<[01] INSTALLED NEW INTERCOSTAL AT L1 DOOR FWD SIDE
- [SDR SWAA2024080910332](https://openairdocs.org/sdr/SWAA2024080910332), Jul 8, 2024: DOOR. OUT OF ADJUST. ADJUST FED AS REQUIRED<[01] PERFORMED FED ADJUSTMENT AS REQUIRED IAW AMM 52-11-00-820-801;[02] VERIFIED CORRECTIVE ACTION COMPLETE.
- [SDR SWAA2024081309762](https://openairdocs.org/sdr/SWAA2024081309762), Jul 6, 2024: SUPPORT. CORRODED. CORROSION AFT CARGO BAY RH FLOOR TO SIDEWALL SUPPORT SECTION 2 BS 767-727D-10; RBL 21; WL 156 MULTIPLE CORROSION AFT CARGO BAY RH FLOOR TO SIDEWALL SUPPORT SECT
- [SDR SWAA2024081309767](https://openairdocs.org/sdr/SWAA2024081309767), Jul 6, 2024: SUPPORT. CORRODED. MULTIPLE CORROSION ON AFT CARGO BAY LH FLOOR TO SIDEWALL SUPPORT SECTION 4;767+5 TO 767-3; RBL 21; WL 156<[01] THIS TASK ACCOMPLISHED ON TTG8Q00UDXCA;[02] VERIF
- [SDR SWAA2024081309930](https://openairdocs.org/sdr/SWAA2024081309930), Jul 6, 2024: STRAP. CORRODED. MULTIPLE AREAS OF CORROSION ON AFT CARGO BAY T-STRAP BS 767+5; RBL 17.70 TO LBL 3; WL 156<[01] T-STRAP WILL BE INSTALL ON CUSTOMER CARD NR: TTG8Q00U29VL;[02] EV
- [SDR SWAA2024081309756](https://openairdocs.org/sdr/SWAA2024081309756), Jul 6, 2024: WEB. CORRODED. CORROSION AFT CARGO BAY THRESHOLD BS 787-10 TO 794; RBL 27; WL 156.<[01] UPDATED STATUS STEP 5 AND 6 TO PARTIAL.;[02] REMOVED AND REPLACED ACB THRESHOLD WEB BET
- [SDR SWAA2024081309933](https://openairdocs.org/sdr/SWAA2024081309933), Jul 6, 2024: SHIELD. CORRODED. CORROSION FWD CARGO DOOR AFT SHIELD BS 500A-6 TO 500A -10; RBL 21; WL 156.<[01] REMOVED AND REPLACED SHIELD AT FCB BETWEEN BS 480+12' TO BS 500A ; RBL 21; WL 15

All 305: https://openairdocs.org/aircraft/N257WN/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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