# N312SW: 1986 Boeing 737-3H4, registration cancelled 2011-10-31 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: October 31, 2011 - Status when cancelled: Valid registration - Airframe: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (registry code 138447K) - Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802) - Serial number: 23334 - Year built: 1986 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: March 14, 1986 - Certificate issued: March 24, 1986 - Last registry action: December 7, 2010 - Mode S code: A34FE4 - Owner when cancelled: [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 was based - The mark today: https://openairdocs.org/aircraft/N312SW - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=312SW - Page: https://openairdocs.org/deregistered/N312SW-2011-10-31 From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Boeing 737-3H4: https://openairdocs.org/model/boeing-737-3h4.md ## Service difficulty reports (320, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR SWAA111038](https://openairdocs.org/sdr/SWAA111038), Feb 17, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 742E, STR 1. REPAIRED SKIN PER SRM. - [SDR SWAA111037](https://openairdocs.org/sdr/SWAA111037), Feb 17, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 485, STR 11L. REPAIRED SKIN PER SRM. - [SDR SWAA111036](https://openairdocs.org/sdr/SWAA111036), Feb 17, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 494, STR 11L. REPAIRED SKIN PER SRM. - [SDR SWAA111035](https://openairdocs.org/sdr/SWAA111035), Feb 17, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 414, STR 12R. REPAIRED SKIN PER SRM. - [SDR SWAA110689](https://openairdocs.org/sdr/SWAA110689), Feb 6, 2011: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 727E+15, STR 1. REPAIRED SKIN PER SRM. - [SDR SWAA110759](https://openairdocs.org/sdr/SWAA110759), Jan 27, 2011: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 505, STR 15L. REPAIRED SKIN PER SRM. - [SDR SWAA110542](https://openairdocs.org/sdr/SWAA110542), Jan 26, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 489, STR 11L. REPAIRED SKIN PER SRM. - [SDR SWAA110541](https://openairdocs.org/sdr/SWAA110541), Jan 26, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 727E+15, STR 1. REPAIRED SKIN PER SRM. - [SDR SWAA110538](https://openairdocs.org/sdr/SWAA110538), Jan 26, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 494, STR 11L. REPAIRED SKIN PER SRM. - [SDR SWAA110537](https://openairdocs.org/sdr/SWAA110537), Jan 26, 2011: SKIN. CRACKED. DURING SCHEDULED HC2 CHECK, FOUND SKIN CRACKED AT BS 414, STR 12R. REPAIRED SKIN PER SRM. - [SDR SWAA110249](https://openairdocs.org/sdr/SWAA110249), Jan 17, 2011: LIGHT. INOPERATIVE. DURING SCHEDULED SPV CHECK, FOUND R1 DOOR EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED BULB PER MM. - [SDR SWAA110248](https://openairdocs.org/sdr/SWAA110248), Jan 17, 2011: LIGHT. INOPERATIVE. DURING SCHEDULED SPV CHECK, FOUND R2 DOOR EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED LIGHT PER MM. - [SDR SWAA110247](https://openairdocs.org/sdr/SWAA110247), Jan 17, 2011: LIGHT. INOPERATIVE. DURING SCHEDULED SPV CHECK, FOUND RT OVERHEAD EMERGENCY EXIT BULLNOSE LIGHTS INOP AT ROW 5. RELAMPED PER MM. - [SDR SWAA110246](https://openairdocs.org/sdr/SWAA110246), Jan 17, 2011: LIGHT. INOPERATIVE. DURING SCHEDULED SPV CHECK, FOUND LT OVERHEAD EMERGENCY EXIT BULLNOSE LIGHTS INOP AT ROW 2. RELAMPED PER MM. - [SDR SWAA105437](https://openairdocs.org/sdr/SWAA105437), Sep 11, 2010: SLIDE. LOW PRESSURE. DURING SCHEDULED MV2 CHECK, FOUND R2 DOOR EMERGENCY EVAC SLIDE PRESSURE INDICATOR LOW. REMOVED AND REPLACED SLIDE PER MM AND MT. - [SDR SWAA103900](https://openairdocs.org/sdr/SWAA103900), Jun 30, 2010: STRINGER CLIP. CRACKED. DURING SCHEDULED HC1 CHECK, FOUND STRINGER CLIP CRACKED AT BS 500D, STR 8R. REMOVED AND REPLACED CLIP PER SRM. - [SDR SWAA103899](https://openairdocs.org/sdr/SWAA103899), Jun 30, 2010: SKIN. CRACKED. DURING SCHEDULED HC1 CHECK, FOUND SKIN CRACKED AT BS 504D, STR 8R. REPAIRED SKIN PER SRM. - [SDR SWAA103898](https://openairdocs.org/sdr/SWAA103898), Jun 30, 2010: LIGHT. LOOSE. DURING SCHEDULED HC1 CHECK, FOUND LT EEPLS LOOSE AT ROW 8. SECURED EEPLS PER MM. - [SDR SWAA103897](https://openairdocs.org/sdr/SWAA103897), Jun 30, 2010: LIGHT. LOOSE. DURING SCHEDULED HC1 CHECK, FOUND RT L2 DOOR EEPLS LOOSE BETWEEN ROW 4 TO ROW 16. SECURED EEPLS PER MM. - [SDR SWAA103896](https://openairdocs.org/sdr/SWAA103896), Jun 30, 2010: LENS. LOOSE. DURING SCHEDULED HC1 CHECK, FOUND L2 DOOR EMERGENCY EXIT LIGHT LENS LOOSE. REMOVED AND REPLACED LENS PER MM. - [SDR SWAA103895](https://openairdocs.org/sdr/SWAA103895), Jun 30, 2010: SLIDE. OUT OF POSITION. DURING SCHEDULED HC1 CHECK, FOUND L2 DOOR EMERGENCY EVAC SLIDE OUT OF POSITION. REPOSITIONED SLIDE PER MM. - [SDR SWAA103519](https://openairdocs.org/sdr/SWAA103519), Jun 15, 2010: SLIDE. OUT OF ADJUST. L2 DOOR EMERGENCY EVAC SLIDE OUT OF ADJUST. RE-ADJUSTED SLIDE PER MT. - [SDR SWAA102817](https://openairdocs.org/sdr/SWAA102817), May 17, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 972, STR 21L. REPAIRED SKIN PER ER. - [SDR SWAA102816](https://openairdocs.org/sdr/SWAA102816), May 17, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 516, STR 16R. REPAIRED SKIN PER ER. - [SDR SWAA102714](https://openairdocs.org/sdr/SWAA102714), May 13, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 516, STR 16R. REPAIRED SKIN PER ER. - [SDR SWAA102321](https://openairdocs.org/sdr/SWAA102321), Apr 26, 2010: PRIORITY VALVE. FAULTY. AIR TURNBACK, RIGHT MLG FAILED TO RETRACT AFTER TAKEOFF. REMOVED AND REPLACED RIGHT MLG LOCK PRIORITY MODULAR VALVE PER MM. - [SDR SWAA101999](https://openairdocs.org/sdr/SWAA101999), Apr 8, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 550D, BETWEEN STR 20L TO STR 21L. REPAIRED FRAME PER ER. - [SDR SWAA101998](https://openairdocs.org/sdr/SWAA101998), Apr 8, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 550B, BETWEEN STR 20L TO STR 21L. REPAIRED FRAME PER ER. - [SDR SWAA101997](https://openairdocs.org/sdr/SWAA101997), Apr 8, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 550D, BETWEEN STR 20R TO STR 21R. REPAIRED FRAME PER ER. - [SDR SWAA101996](https://openairdocs.org/sdr/SWAA101996), Apr 8, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 550C, BETWEEN STR 20R TO STR 21R. REPAIRED FRAME PER ER. - [SDR SWAA101995](https://openairdocs.org/sdr/SWAA101995), Apr 8, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 550B, BETWEEN STR 20R TO STR 21R. REPAIRED FRAME PER ER. - [SDR SWAA101895](https://openairdocs.org/sdr/SWAA101895), Apr 6, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 699, STR 10R. REPAIRED SKIN PER ER. - [SDR SWAA101894](https://openairdocs.org/sdr/SWAA101894), Apr 6, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 383, STR 15R. REPAIRED SKIN PER ER. - [SDR SWAA101864](https://openairdocs.org/sdr/SWAA101864), Apr 5, 2010: SHEAR TIE. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SHEAR TIE CRACKED AT BS 400, BETWEEN STR 15R TO STR 16R. REMOVED AND REPLACED SHEAR TIE PER ER. - [SDR SWAA101863](https://openairdocs.org/sdr/SWAA101863), Apr 5, 2010: SHEAR TIE. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SHEAR TIE CRACKED AT BS 400, BETWEEN STR 13R TO STR 14R. REMOVED AND REPLACED SHEAR TIE PER ER. - [SDR SWAA101862](https://openairdocs.org/sdr/SWAA101862), Apr 5, 2010: FRAME. CRACKED. DURING SCHEDULED OTS CHECK, FOUND FRAME CRACKED AT BS 500D, BETWEEN STR 20L TO STR 21L. REPAIRED FRAME PER SRM. - [SDR SWAA101890](https://openairdocs.org/sdr/SWAA101890), Apr 4, 2010: SKIN. CRACKED. DURING SCHEDULED OTS CHECK, FOUND SKIN CRACKED AT BS 977.8, STR 5R. REPAIRED SKIN PER SRM. - [SDR SWAA101801](https://openairdocs.org/sdr/SWAA101801), Mar 29, 2010: SKIN. CRACKED. DURING SCHEDULED CV CHECK, FOUND FUSELAGE SKIN CRACKED AT BS 977.8, STR 5R. REPAIRED SKIN PER SRM & MT. - [SDR SWAA100066](https://openairdocs.org/sdr/SWAA100066), Jan 5, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 270, STR 16R. REPAIRED SKIN PER SRM. - [SDR SWAA100065](https://openairdocs.org/sdr/SWAA100065), Jan 5, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 500A, STR 26L. REPAIRED SKIN PER SRM. - [SDR SWAA100064](https://openairdocs.org/sdr/SWAA100064), Jan 5, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 727E, STR 5L. REPAIRED SKIN PER ER. - [SDR SWAA100063](https://openairdocs.org/sdr/SWAA100063), Jan 5, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 500B, STR 15L. REPAIRED SKIN PER ER. - [SDR SWAA100018](https://openairdocs.org/sdr/SWAA100018), Jan 3, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 727E, STR 5L. REPAIRED SKIN PER ER. - [SDR SWAA100017](https://openairdocs.org/sdr/SWAA100017), Jan 3, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 270, STR 16R. REPAIRED SKIN PER ER. - [SDR SWAA100016](https://openairdocs.org/sdr/SWAA100016), Jan 3, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 500A, STR 26L. REPAIRED SKIN PER ER. - [SDR SWAA100015](https://openairdocs.org/sdr/SWAA100015), Jan 3, 2010: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 500B, STR 15L. REPAIRED SKIN PER ER. - [SDR SWAA098034](https://openairdocs.org/sdr/SWAA098034), Dec 22, 2009: FLAP. DELAMINATED. DURING SCHEDULED 2HC2 CHECK, FOUND LT WING I/B AFT FLAP DELAMINATED. REMOVED AND REPLACED AFT FLAP PER MM. - [SDR SWAA097517](https://openairdocs.org/sdr/SWAA097517), Nov 28, 2009: LENS. BROKEN. L1 DOOR LOWER EMERGENCY EXIT LIGHT LENS BROKEN. REMOVED AND REPLACED LENS PER MM. - [SDR SWAA096074](https://openairdocs.org/sdr/SWAA096074), Sep 22, 2009: LIGHT. INOPERATIVE. DURING SCHEDULED CV CHECK, FOUND L2 DOOR EXTERIOR EMERGENCY EXIT LIGHT INOP. RELAMPED LIGHT PER MM. - [SDR SWAA095730](https://openairdocs.org/sdr/SWAA095730), Sep 8, 2009: SKIN. CRACKED. DURING SCHEDULED SPV CHECK, FOUND SKIN CRACKED AT BS 516A, STR 20R. REPAIRED SKIN PER SRM. All 320: https://openairdocs.org/deregistered/N312SW-2011-10-31/reports.md ## 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 19890919060609I](https://openairdocs.org/incident/19890919060609I), Sep 19, 1989: Boeing 7373H4 (N312SW), Dallas, TX. Flaps would not move to selected degree on final. Landed safely. Replaced flap transmitter. ## Other aircraft with N312SW - [Cancelled 2026-10-05](https://openairdocs.org/deregistered/N312SW-2026-10-05): Skyways Air Transportation V2, S/N 13. Exported to Germany. Owner: [Skyways Air Transportation Inc](https://openairdocs.org/faa-owner/SKYWAYS%20AIR%20TRANSPORTATION%20INC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin) --- 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.