# N931WN: 2009 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 CFM56-7B24/3 series](https://openairdocs.org/engine/cfm-international-cfm56-7b24-3-series) (registry code 13074) - Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs) - Serial number: 36637 - Year built: 2009 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: February 5, 2009 - Certificate issued: April 18, 2022 - Expires: April 30, 2029 - Mode S code: ACEB61 - Registered owner: [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE) - Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington) - Owner type: Corporation - Owner's area on the map: 39.7357° N, 75.5321° W: Placed by OpenAirDocs: center of Wilmington, DE, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=931WN - Page: https://openairdocs.org/aircraft/N931WN 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 CFM56-7B24/3 model are included. ## ADs that may apply (OpenAirDocs): 10 in force ### Matched by airframe (Boeing 737-7H4) None in force. ### Matched by engine (CFM International CFM56-7B24/3 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 N931WN. ## FAA accident and incident reports None matched to N931WN. ## Service difficulty reports (254, 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 SWAA2026091083912](https://openairdocs.org/sdr/SWAA2026091083912), Sep 2, 2026: LAMP. INOPERATIVE. AFT ENTRY DOOR SLIDE LIGHT INOPERATIVE. REPLACED THE LAMPS AFT ENTRY DOOR SLIDE LIGHT AND PERFORMED GOOD INSTALLATION TEST IAW AMM 33-51-04-960-801. - [SDR SWAA2026091003021](https://openairdocs.org/sdr/SWAA2026091003021), Sep 2, 2026: LENS. DAMAGED. EMERGENCY EXIT LOCATOR ON FWD FACE OF LAV B HAS DAMAGED LENS REPLACED LAV B EMERGENCY EXIT LOCATOR AND PERFORMED GOOD INSTALLATION TEST IAW AMM 33-51-01-960-802 - [SDR SWAA2026091098562](https://openairdocs.org/sdr/SWAA2026091098562), Sep 2, 2026: BULB. INOPERATIVE. RIGHT OWE AFT EMERGENCY EXIT LOCATOR HAS INOPERATIVE BULBS, REPLACED THE BULBS RT OWE AFT EMERGENCY EXIT LOCATOR AND PERFORMED GOOD INSTALLATION TEST IAW AMM 33 - [SDR SWAA2026091056834](https://openairdocs.org/sdr/SWAA2026091056834), Sep 2, 2026: LENS. DAMAGED. R/H OWE FWD EMERGENCY EXIT LOCATOR LENS RETAINER DAMAGED REPLACED RT OWE FWD EMERGENCY EXIT LOCATOR LIGHT ASSEMBLY AND PERFORMED GOOD INSTALLATION TEST IAW AMM - [SDR SWAA2026091077621](https://openairdocs.org/sdr/SWAA2026091077621), Aug 24, 2026: INTERCOSTAL. CRACKED. MAIN CABIN FWD WET AREA, LT SIDE, STRUCTURE INTERCOSTAL HAS A CRACK BETWEEN BS 294.5 AND 303.9, STR 16L. REQUIRES RII BUYBACK MAIN CABIN FWD WET AREA LT SIDE, S - [SDR SWAA2026091091817](https://openairdocs.org/sdr/SWAA2026091091817), Aug 19, 2026: BEAM. CRACKED. #8 CANOE FAIRING PANEL 644BB BEAM ASSY. HAS CRACKED FLANGE BUSHING REPLACED BEAM ASSY IAW AMM 27-51-28-400-802 STEP 5. G. (1) (B). CAL TOOL ID: ATS2632 CAL TOOL - [SDR SWAA2026091070928](https://openairdocs.org/sdr/SWAA2026091070928), Aug 12, 2026: PANEL. DEBONDED. DISBOND ON OUTER SURFACE OF PANEL 193AR 04 - REPAIRED PER SRM 51-70-05-2R-1-A00732, REPAIR 1. REPAIR OF DAMAGE TO ONE SKIN OF A HONEYCOMB PANEL, AIRFRAME PERMAN - [SDR SWAA2026091028072](https://openairdocs.org/sdr/SWAA2026091028072), Aug 11, 2026: FAIRING. CRACKED. NR 1 ENGINE AFT FAIRING TRAILING EDGE IS CRACKED. REMOVED AND REPLACED #1 ENGINE AFT FAIRING TRAILING EDGE IAW SRM 51-40-02-0G-0 SRM 51-40-05-0G-0 DWG 313A2400 - [SDR SWAA2026091039814](https://openairdocs.org/sdr/SWAA2026091039814), Aug 11, 2026: INTERCOSTAL. CRACKED. MAIN CABIN FWD WET AREA, LH SIDE: STRUCTURE INTERCOSTAL HAS A CRACK BETWEEN STA 294.5 AND 303.9, STR 16L. MAIN CABIN FWD WET AREA LH SIDE: STRUCTURE INTERCOSTAL - [SDR SWAA2026091002390](https://openairdocs.org/sdr/SWAA2026091002390), Aug 11, 2026: BAFFLE. CRACKED. FWD CARGO BAY BAFFLE BS440 TO BS460 WL156 LBL25 IS CRACKED CRACKED ON FWD CARGO BAY L/H BAFFLE FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM. - [SDR SWAA2026091010521](https://openairdocs.org/sdr/SWAA2026091010521), Aug 10, 2026: SCUFF PLATE. CRACKED. FSD SCUFF PLATE IS CRACKED AT FWD AND AFT CORNERS. WELDED THE DAMAGED AREA OF SCUFF PLATE IAW SRM 53-10-15-2R-2 REPAIR 2. - [SDR SWAA2026091085052](https://openairdocs.org/sdr/SWAA2026091085052), Aug 7, 2026: GIRT BAR. CORRODED. CORROSION ON FED FWD GRIT BAR FITTING ATTACH PLATE AT BS 312, LBL 54, WL 208 NO ALLOWABLE LIMITS FOUND FED FWD GIRT BAR FITTING ATTACH PLATE REMOVED IAW SRM 51- - [SDR SWAA2026091004197](https://openairdocs.org/sdr/SWAA2026091004197), Aug 7, 2026: FLOOR PANEL. PULLED. FWD FLOOR PANEL 222AF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER [SRM 53-00-50-2R-1-A00939 (REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPO - [SDR SWAA2026091003156](https://openairdocs.org/sdr/SWAA2026091003156), Aug 7, 2026: FLOOR PANEL. PULLED. FLOOR PANEL 241UF UPPER SKIN HAS AREAS OF PULLED STRANDS. DUE TO THE EXTENT OF DAMAGE REPLACED FLOOR PANEL 241UF WITH NEW PANEL IAW SRM 51-10-02-0G-0 PARA 9 AND - [SDR SWAA2026091044245](https://openairdocs.org/sdr/SWAA2026091044245), Aug 7, 2026: FLOOR PANEL. PULLED. FWD FLOOR PANEL 221BF UPPER SKIN HAS AREAS OF PULLED STRANDS. FWD FLOOR PANEL 221BF UPPER SKIN WITH AREAS OF PULLED STRANDS WAS REPLACED WITH A SERVICEABLE FLOO - [SDR SWAA2026091097696](https://openairdocs.org/sdr/SWAA2026091097696), Aug 7, 2026: FLOOR SUPPORT. CRAZED. CRACKED FLOOR SUPPORT AT BS 354, LBL 14, WL 208. REMOVED AND REPLACED THE FLOOR SUPPORT BS 344 - 360, LBL 14, WL 208-WL 202, IAW SRM 51-10-02-0G-0 SRM 51-40-02- - [SDR SWAA2026091088018](https://openairdocs.org/sdr/SWAA2026091088018), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 241ABF UPPER SKIN HAS AREAS OF PULLED STRANDS. REPAIRED IAW SRM 53-00-50-2R-1-A00939, REPAIR 1. REPAIR OF DAMAGE TO ONE FACESHEET IN COMPOSITE F - [SDR SWAA2026091001033](https://openairdocs.org/sdr/SWAA2026091001033), Aug 7, 2026: FRAME. CORRODED. CORROSION ON FRAME AT BS 303 LBL55 WL210. REWORKED PER EA 26-153-02140 WITH AN INSPECTION THRESHOLD DEFINED IN 26-153-02140-DTI. - [SDR SWAA2026091033249](https://openairdocs.org/sdr/SWAA2026091033249), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 242TF UPPER SKIN HAS AREAS OF PULLED STRANDS. AFT FLOOR PANEL 242TF WITH UPPER SKIN HAS AREAS OF PULLED STRANDS WAS REPAIRED IAW SRM 53-00-50-2R - [SDR SWAA2026091054736](https://openairdocs.org/sdr/SWAA2026091054736), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 241AAF UPPER SKIN HAS AREAS OF PULLED STRANDS. REPAIRED BY FABRICATING NEW PANEL PER SRM 53-00-50-2R-0-A00938. - [SDR SWAA2026091048402](https://openairdocs.org/sdr/SWAA2026091048402), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 241ADF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER SRM 53-00-50-2R-1-A00939 REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPOS - [SDR SWAA2026091089137](https://openairdocs.org/sdr/SWAA2026091089137), Aug 7, 2026: FRAME. CRACKED. CRACKED FRAME AT BS 312 WL 284 BETWEEN STR 6L AND STR 5L TASK COMPLETED I.A.W EA M-22-153-01244. BS 312 FRAME UPPER CHORD CRACK DAMAGE AT LBL 33 BETWEEN S-5L AN - [SDR SWAA2026091008361](https://openairdocs.org/sdr/SWAA2026091008361), Aug 7, 2026: FLOOR PANEL. PULLED. FWD FLOOR PANEL 221FF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER [SRM 53-00-50-2R-1-A00939 (REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPO - [SDR SWAA2026091002609](https://openairdocs.org/sdr/SWAA2026091002609), Aug 7, 2026: STRAP. CORRODED. CORROSION ON STRAP AT BS 1006-1010 RBL 3 WL208. REMOVED AND REPLACED TENSION STRAP BS1006-BS1026 RBL3 WL208 I.A.W SRM 51-40-02-0G-0 AND SRM 147A5730 REV: - [SDR SWAA2026091001782](https://openairdocs.org/sdr/SWAA2026091001782), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 241ZF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED IAW SRM 53-00-50-2R-1-A00939 (REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPOS - [SDR SWAA2026091009377](https://openairdocs.org/sdr/SWAA2026091009377), Aug 7, 2026: SEAT TRACK. CORRODED. CORROSION ON PASSENGER CABIN SEAT TRACK AT LBL 45 WL 208 BS 370 ON CROWN AND WELL, BS 383 ON CROWN, BS 462-465 ON CROWN CORROSION ON PASSENGER CABIN SEAT TRACK - [SDR SWAA2026091045788](https://openairdocs.org/sdr/SWAA2026091045788), Aug 7, 2026: STIFFENER. CRACKED. STIFFENER CRACKED BS639-BS663 RBL63 WL203 LOCATED AND DRILLED NEW STIFFENER AT BS 639- BS663 RBL 69.5 WL 204 IAW SRM 51-40-05-0G-0 BOEING DWGS 144A7312 REV A 14 - [SDR SWAA2026091086934](https://openairdocs.org/sdr/SWAA2026091086934), Aug 7, 2026: FLOOR SUPPORT. CRACKED. FLOOR SUPPORT CRACKED AT BS 317 RBL31 WL208 REMOVED AND REPLACED FWD WET AREA INTERCOSTAL BS-317 RBL-31 WL-208 IAW SRM 51-40-02-0G-0 AND DWG#141A5400 SHEET 39 R - [SDR SWAA2026091042954](https://openairdocs.org/sdr/SWAA2026091042954), Aug 7, 2026: FLOOR PANEL. PULLED. FWD FLOOR PANEL 222BF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER SRM 53-00-50-2R-1-A00939 (REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPOS - [SDR SWAA2026091020838](https://openairdocs.org/sdr/SWAA2026091020838), Aug 7, 2026: FLOOR PANEL. PULLED. FWD FLOOR PANEL 222DF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER SRM 53-00-50-2R-1-A00939 - [SDR SWAA2026091060691](https://openairdocs.org/sdr/SWAA2026091060691), Aug 7, 2026: FLOOR PANEL. PULLED. AFT FLOOR PANEL 241XF UPPER SKIN HAS AREAS OF PULLED STRANDS. 04 - REPAIRED PER [SRM 53-00-50-2R-1-A00939 (REPAIR 1 - REPAIR OF DAMAGE TO ONE FACESHEET IN COMPO - [SDR SWAA2026091083716](https://openairdocs.org/sdr/SWAA2026091083716), Aug 6, 2026: FLOOR PANEL. PULLED. PASSENGER CABIN FLOOR PANEL 231XF HAS UPPER SURFACE DAMAGE PASSENGER CABIN FLOOR PANEL 231XF WITH UPPER SURFACE PULLED STRANDS WAS REPLACED WITH A SERVICEABLE F - [SDR SWAA2026091004636](https://openairdocs.org/sdr/SWAA2026091004636), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT LBL 2 BS 986 WL 208 {MARKED} {PICTURES UPLOADED} EVALUATED CORROSION ON BS986 LBL2 WL208 FL - [SDR SWAA2026091043548](https://openairdocs.org/sdr/SWAA2026091043548), Aug 6, 2026: FLOOR SUPPORT. CORRODED. CORROSION FOUND IN (MULTIPLE SPOTS) ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 54 BS 947 - BS 995 WL 208 (MOP-SEAL) CORROSION ON AED INNER CHORD EVALUATED AND - [SDR SWAA2026091059678](https://openairdocs.org/sdr/SWAA2026091059678), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 49 BS 986 WL 208 . REPAIRED FUSELAGE FLOORBEAM UPPER CHORD REPAIR AT BS 986.5 BETWEEN L - [SDR SWAA2026091015537](https://openairdocs.org/sdr/SWAA2026091015537), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT LBL 12 BS 986 WL 208. EVALUATED CORROSION ON BS986 LBL12 WL208 FLOOR BEAM UPPER FLANGE ORIGINAL M - [SDR SWAA2026091035474](https://openairdocs.org/sdr/SWAA2026091035474), Aug 6, 2026: WEB. CORRODED. CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 38 BS 1006 WL 208 . REMOVE AND REPLACE L/H SHEAR WEB FROM BS986-BS1016 LBL34-LBL42 WL 208 RECORD ON - [SDR SWAA2026091013321](https://openairdocs.org/sdr/SWAA2026091013321), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 8 BS 986 WL 208. EVALUATED CORROSION ON BS986 RBL8 WL208 FLOOR BEAM UPPER FLANGE ORIGIN - [SDR SWAA2026091033325](https://openairdocs.org/sdr/SWAA2026091033325), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 41 BS 986 WL 208. EVALUATED CORROSION ON BS986 RBL41 WL208 FLOORBEAM UPPER FLANGE ORIGI - [SDR SWAA2026091030945](https://openairdocs.org/sdr/SWAA2026091030945), Aug 6, 2026: INTERCOSTAL. CORRODED. CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 32 BS 996 WL 208. EVALUATED CORROSION ON BS986-BS1006 LBL34 WL208 INTERCOSTAL AT BS 996 LBL32 WL208 - [SDR SWAA2026091088181](https://openairdocs.org/sdr/SWAA2026091088181), Aug 6, 2026: STRAP. CORRODED. CORROSION FOUND IN (MULTIPLE SPOTS) ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 3 BS 1006 - BS 1010 WL 208. REMOVED AND REPLACED TENSION STRAP BS 1006-1024 LBL - [SDR SWAA2026091009965](https://openairdocs.org/sdr/SWAA2026091009965), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 35 BS 986 WL 208 {MARKED} {PICTURES UPLOADED} EVALUATED CORROSION ON BS986 RBL35 WL208 - [SDR SWAA2026091073115](https://openairdocs.org/sdr/SWAA2026091073115), Aug 6, 2026: FLOOR PANEL. PULLED. PASSENGER CABIN FLOOR PANEL 241DF HAS UPPER SURFACE DAMAGE PASSENGER CABIN FLOOR PANEL 241DF WITH UPPER SURFACE PULLED STRANDS WAS REPLACED WITH A SERVICEABLE F - [SDR SWAA2026091070938](https://openairdocs.org/sdr/SWAA2026091070938), Aug 6, 2026: STRAP. CORRODED. CORROSION FOUND IN (MULTIPLE SPOTS) ON TOP AFT (WET AREA) FLOOR STRUCTURE AT RBL 18 BS 1006 - BS 1014 WL 208. REMOVED AND REPLACED TENSION STRAP BS 1016 - 1028, - [SDR SWAA2026091043360](https://openairdocs.org/sdr/SWAA2026091043360), Aug 6, 2026: SILL DRAIN. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 57 BS 947 - BS 990 (MOP-SILL) CORROSION ON ASD INNER CHORD EVALUATED AND FOUND TO BE OU - [SDR SWAA2026091099550](https://openairdocs.org/sdr/SWAA2026091099550), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 42 BS 986 WL 208. EVALUATED CORROSION ON BS986 LBL42 WL208 FLOORBEAM UPPER FLANGE ORIGINAL MATERIAL - [SDR SWAA2026091087532](https://openairdocs.org/sdr/SWAA2026091087532), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 45 BS 986 WL 208, EVALUATED CORROSION ON BS986 LBL45 WL208 FLOORBEAM UPPER FLANGE ORIGINAL MATERIAL - [SDR SWAA2026091004217](https://openairdocs.org/sdr/SWAA2026091004217), Aug 6, 2026: SHEAR WEB. CORRODED. CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 36 BS 1002 WL 208. REMOVED AND REPLACED L/H SHEAR WEB FROM BS986-BS1016 LBL34-LBL42 WL 208 RECORD O - [SDR SWAA2026091049172](https://openairdocs.org/sdr/SWAA2026091049172), Aug 6, 2026: FLOORBEAM. CORRODED. CORROSION FOUND ON TOP & UNDERSIDE AFT (WET AREA) FLOOR STRUCTURE AT RBL 45 BS 986 WL 208. EVALUATED CORROSION ON BS986 RBL45 WL208 FLOOR BEAM UPPER FLANGE ORIG - [SDR SWAA2026091015597](https://openairdocs.org/sdr/SWAA2026091015597), Aug 6, 2026: STRUCTURE. CORRODED. CORROSION FOUND IN (MULTIPLE SPOTS) ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 36 BS 989 - BS 995 WL 208 {MARKED} {PICTURES UPLOADED} REMOVED AND REPLACED L/H All 254: https://openairdocs.org/aircraft/N931WN/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 CFM56-7B24/3 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 737-7H4 aircraft: https://openairdocs.org/model/boeing-737-7h4/aircraft.md - The CFM International CFM56-7B24/3 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b24-3-series.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.