# N721WN: 1981 Boeing 737-2T4, registration cancelled 2005-02-16 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: February 16, 2005 - Exported to: Chile - Status when cancelled: Triennial form not returned - Airframe: [Boeing 737-2T4](https://openairdocs.org/model/boeing-737-2t4) (registry code 1384492) - Engine: [Pratt & Whitney JT8D-9 series](https://openairdocs.org/engine/pratt-whitney-jt8d-9-series) (registry code 52048) - Data sheets: [TCDS E2EA](https://openairdocs.org/tcds/E2EA) (OpenAirDocs) - Serial number: 22697 - Year built: 1981 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: November 25, 1981 - Certificate issued: August 5, 1998 - Last registry action: August 17, 2004 - Mode S code: A9A944 - Owners when cancelled: [Trust N721wn And N722wn](https://openairdocs.org/faa-owner/TRUST%20N721WN%20AND%20N722WN), [C/O Wilmington Trust Co Attn Corp Trust Admin](https://openairdocs.org/faa-owner/C%2FO%20WILMINGTON%20TRUST%20CO%20ATTN%20CORP%20TRUST%20ADMIN) - 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 was based - The mark today: https://openairdocs.org/aircraft/N721WN - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=721WN - Page: https://openairdocs.org/deregistered/N721WN-2005-02-16 From the FAA registry file of November 3, 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 737-2T4: https://openairdocs.org/model/boeing-737-2t4.md ## Service difficulty reports (201, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR SWAA042762](https://openairdocs.org/sdr/SWAA042762), Sep 22, 2004: COVER. CRACKED. DURING SCHEDULED C1 CHECK, FOUND EEPLS COVERS AT ROWS 1 DEF TO 2 DEF AND 20 DEF, CRACKED. REMOVED AND REPLACED EEPLS COVERS PER MM. - [SDR SWAA042761](https://openairdocs.org/sdr/SWAA042761), Sep 22, 2004: COVER. LOOSE. DURING SCHEDULED C1 CHECK, FOUND 2 EACH EEPLS COVERS AT ROW 19 DEF AND ROW 10 DEF TO ROW 12 DEF, LOOSE. SECURED EEPLS COVERS PER MM. - [SDR SWAA042760](https://openairdocs.org/sdr/SWAA042760), Sep 22, 2004: SLIDE. OUT OF ADJUST. DURING SCHEDULED C1 CHECK, FOUND 2 EACH DOOR EVAC SLIDES OUT OF ADJUST AT THE L2 AND R2 DOORS. ADJUSTED BOTH L2 AND R2 DOOR EVAC SLIDES PER MM. - [SDR SWAA042699](https://openairdocs.org/sdr/SWAA042699), Sep 16, 2004: COVER. LOOSE. EEPLS COVER AT ROW 6 DEF, LOOSE. SECURED EEPLS COVER PER MM. - [SDR SWAA042564](https://openairdocs.org/sdr/SWAA042564), Sep 2, 2004: SLIDE. OUT OF ADJUST. DURING SCHEDULED PM CHECK, FOUND R2 DOOR EVAC SLIDE OUT OF ADJUST. ADJUSTED R2 DOOR EVAC SLIDE PER MM. - [SDR SWAA042557](https://openairdocs.org/sdr/SWAA042557), Sep 1, 2004: SKIN. CRACKED. DURING SCHEDULED SERVICE CHECK, FOUND FUSELAGE SKIN AT BS 937, STRINGER 25R, CRACKED. REPAIRED SIN PER SRM. (M) SWAA - [SDR SWAA042258](https://openairdocs.org/sdr/SWAA042258), Aug 8, 2004: LIGHT. INOPERATIVE. DURING SCHEDULED PM CHECK, FOUND RT AND LT OVERWING EMERGENCY EXIT LIGHTS INOP. REPAIRED WIRE SPLICE PER MM. - [SDR SWAA042257](https://openairdocs.org/sdr/SWAA042257), Aug 8, 2004: LIGHT. INOPERATIVE. DURING SCHEDULED PM CHECK, FOUND AFT CABIN EEPLS INOP. REMOVED AND REPLACED AFT EEPLS ASSEMBLY PER MM. - [SDR SWAA042188](https://openairdocs.org/sdr/SWAA042188), Jul 31, 2004: BATTERY. INOPERATIVE. DURING SCHEDULED SERVICE CHECK, FOUND AFT CENTER EMERGENCY EXIT LIGHTS INOP. REMOVED AND REPLACED AFT LIGHT BATTERY PER MM. - [SDR SWAA042101](https://openairdocs.org/sdr/SWAA042101), Jul 24, 2004: LIGHT. INOPERATIVE. DURING SCHEDULED SERVICE CHECK, FOUND LEFT OVERWING EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED OVERWING EMERGENCY EXIT LIGHT ASSEMBLY PER MM. - [SDR SWAA042072](https://openairdocs.org/sdr/SWAA042072), Jul 21, 2004: SLIDE. OUT OF ADJUST. DURING SCHEDULED C4 CHECK, FOUND R2 DOOR EVAC SLIDE OUT OF ADJUST. ADJUSTED R2 DOOR EVAC SLIDE PER MM. - [SDR SWAA042025](https://openairdocs.org/sdr/SWAA042025), Jul 18, 2004: SKIN. CRACKED. RIGHT WING OUTBOARD T/E FLAP CRACKED. REPAIRED RIGHT OUTBOARD T/E FLAP PER EA. - [SDR SWAA041926](https://openairdocs.org/sdr/SWAA041926), Jul 8, 2004: BATTERY. INOPERATIVE. DURING SCHEDULED SERVICE CHECK, FOUND LT AND RT OVERWING EMERGENCY EXIT LIGHTS INOP. REMOVED AND REPLACED OVERWING BATTERY PER MM. - [SDR SWAA041857](https://openairdocs.org/sdr/SWAA041857), Jul 1, 2004: BATTERY. INOPERATIVE. DURING SCHEDULED SERVICE CHECK, FOUND EMERGENCY EXIT LIGHTS AT RT AND LT OVERWING EXITS INOP. REMOVED AND REPLACED BATTERY PACK PER MM. - [SDR SWAA041516](https://openairdocs.org/sdr/SWAA041516), May 30, 2004: BATTERY. DISCHARGED. DURING SCHEDULED PM CHECK, FOUND FWD ENTRY AND FWD SERVICE DOORS OVERHEAD EMERGENCY EXIT LIGHTS, INOP. REMOVED AND REPLACED BATTERY PER MM. - [SDR SWAA041515](https://openairdocs.org/sdr/SWAA041515), May 30, 2004: BATTERY. DISCHARGED. DURING SCHEDULED PM CHECK, FOUND EEPLS AT OVERWING EXITS INOP. REMOVED AND REPLACED EEPLS BATTERY PER MM. - [SDR SWAA041488](https://openairdocs.org/sdr/SWAA041488), May 25, 2004: WIRE. BROKEN. EEPLS WIRES BROKEN AND EEPLS COVERS LOOSE AT OVERWING EXIT. REPAIRED EEPLS WIRES AND SECURED COVERS PER MM. - [SDR SWAA041449](https://openairdocs.org/sdr/SWAA041449), May 21, 2004: LAMP. INOPERATIVE. RT RED OVERWING EMERGENCY EXIT LIGHT INOP. RELAMPED EXIT LIGHT PER MM. - [SDR SWAA041381](https://openairdocs.org/sdr/SWAA041381), May 14, 2004: CABLE. MISROUTED. DURING SCHEDULED C3 CHECK, FOUND L2 DOOR EVAC SLIDE CABLE MISROUTED. REROUTED L2 DOOR EVAC SLIDE CABLE PER MM. - [SDR SWAA041377](https://openairdocs.org/sdr/SWAA041377), May 14, 2004: LAMP. INOPERATIVE. DURING SCHEDULED C3 CHECK, FOUND LAST LIGHT ON RT EEPLS INOP. RELAMPED EEPLS PER MM. - [SDR SWAA041136](https://openairdocs.org/sdr/SWAA041136), Apr 22, 2004: SLIDE. OUT OF ADJUST. DURING SCHEDULED A1 CHECK, FOUND R2 DOOR EVAC SLIDE OUT OF ADJUST. ADJUSTED R2 DOOR EVAC SLIDE PER MM. - [SDR SWAA041135](https://openairdocs.org/sdr/SWAA041135), Apr 22, 2004: LENS. LOOSE. DURING SCHEDULED A1 CHECK, FOUND EMERGENCY EXIT BULLNOSE LIGHT LENS LOOSE AT ROW 3 DEF. SECURED LIGHT LENS PER MM. - [SDR SWAA041133](https://openairdocs.org/sdr/SWAA041133), Apr 22, 2004: BATTERY. INOPERATIVE. EEPLS AT ROW 10 DEF AND EMERGENCY EXIT LIGHTS INOP. REMOVED AND REPLACED BATTERY PER MM. - [SDR SWAA041055](https://openairdocs.org/sdr/SWAA041055), Apr 14, 2004: CAP. MISSING. EEPLS MISSING END CAP. INSTALLED END CAP PER MM. - [SDR SWAA040611](https://openairdocs.org/sdr/SWAA040611), Feb 26, 2004: SLIDE. OUT OF ADJUST. DURING SCHEDULED C2 CHECK, FOUND R2 DOOR EVAC SLIDE OUT OF ADJUST. ADJUSTED R2 DOOR EVAC SLIDE PER MM. - [SDR SWAA040524](https://openairdocs.org/sdr/SWAA040524), Feb 19, 2004: BATTERY. DISCHARGED. DURING SCHEDULED A1 CHECK, FOUND AFT SERVICE DOOR OVERHEAD EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED BATTERY PER MM. - [SDR SWAA040357](https://openairdocs.org/sdr/SWAA040357), Feb 4, 2004: SPLICE. CRACKED. DURING SCHEDULED PM CHECK, FOUND STRINGER SPLICE CRACKED AT BS 360, STRINGER 4L. REMOVED AND REPLACED STRINGER SPLICE PER SRM. - [SDR SWAA032669](https://openairdocs.org/sdr/SWAA032669), Dec 6, 2003: SLIDE. OUT OF ADJUST. R2 DOOR EVACUATION SLIDE OUT OF ADJUST. ADJUSTED SLIDE ASY PER MM. - [SDR SWAA032658](https://openairdocs.org/sdr/SWAA032658), Dec 3, 2003: LIGHT. INOPERATIVE. DURING SCHEDULED C1 CHECK, FOUND AISLE OVERHEAD EMERGENCY LIGHT INOP AT ROW 3. RELAMPED PER MM. - [SDR SWAA032657](https://openairdocs.org/sdr/SWAA032657), Dec 2, 2003: LAMP. INOPERATIVE. DURING SCHEDULED C1 CHECK, FOUND EEPLS INOP AT ROW 16. RELAMPED PER MM. - [SDR SWAA032578](https://openairdocs.org/sdr/SWAA032578), Nov 22, 2003: LIGHT. INOPERATIVE. EEPLS INOP AT FWD AND MID CABIN AREAS. RELAMPED EEPLS PER MM. - [SDR SWAA032501](https://openairdocs.org/sdr/SWAA032501), Nov 12, 2003: LIGHT. INOPERATIVE. DURING SCHEDULED A2 CHECK, FOUND EEPLS INOP AT ROW 3. REPAIRED EEPLS WIRE PER MM. - [SDR SWAA032359](https://openairdocs.org/sdr/SWAA032359), Oct 26, 2003: BULB. INOPERATIVE. EEPLS INOP AND COVER LOOSE AT ROW 15. RELAMPED AND INSTALLED LENS COVER PER MM. - [SDR SWAA032344](https://openairdocs.org/sdr/SWAA032344), Oct 24, 2003: INDICATOR. OUT OF LIMITS. DURING SCHEDULED PM CHECK, FOUND L2 DOOR EVACUATION SLIDE PRESS IND OUT OF VIEW. REPOSTIONED SLIDE ASSY PER MM. - [SDR SWAA032281](https://openairdocs.org/sdr/SWAA032281), Oct 16, 2003: ENGINE. FAILED. IN FLIGHT SHUT DOWN, DECLARED EMERGENCY, AIR TURN BACK, NR 1 ENGINE FAILED. REMOVED AND REPLACED NR 1 ENGINE PER MM. - [SDR SWAA032232](https://openairdocs.org/sdr/SWAA032232), Oct 10, 2003: LIGHT. MISSING. EEPLS SECTION MISSING AT ROW 15. INSTALLED EEPLS SECTION PER MM. - [SDR SWAA032026](https://openairdocs.org/sdr/SWAA032026), Sep 11, 2003: LAMP. INOPERATIVE. DURING SCHEDULED PM CHECK, FOUND SEVERAL EEPLS LIGHTS INOP AND SEVERAL EEPLS LENS MISSING IN CABIN. RELAMPER LIGHTS AND INSTALLED LENSES PER MM. - [SDR SWAA031932](https://openairdocs.org/sdr/SWAA031932), Aug 28, 2003: TRACK. LOOSE. DURING SCHEDULED C4 CHECK, FOUND SEVERAL EELPS TRACKS LOOSE. SECURED EEPLS TRACKS PER MM. - [SDR SWAA031837](https://openairdocs.org/sdr/SWAA031837), Aug 15, 2003: COVER. MISSING. DURING SCHEDULED SERVICE CHECK, FOUND EEPLS COVERS MISSING AT ROW'S NR 7, NR 8 AND NR 21. INSTALLED COVERS PER MM. - [SDR SWAA031306](https://openairdocs.org/sdr/SWAA031306), Jun 10, 2003: BATTERY. DISCHARGED. DURING SCHEDULED C3 CHECK, FOUND FWD OVERHEAD EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED BATTERY PER MM. - [SDR SWAA031098](https://openairdocs.org/sdr/SWAA031098), May 15, 2003: BEARING. WORN. DURING SCHEDULED A2 CHECK, FOUND AILERONS DIFFICULT TO MOVE OUT OF CENTER DETENT. REMOVED AND REPLACED 4 EA BEARINGS ON AILERON CONTROL DRUM PER MM. - [SDR SWAA031072](https://openairdocs.org/sdr/SWAA031072), May 10, 2003: SKIN. CRACKED. DURING SCHEDULED SERVICE CHECK, FOUND A 3 INCH LONG FUSELAGE SKIN CRACK, BS 520, STRINGER 16R. REPAIRED SKIN PER SRM. - [SDR SWAA031071](https://openairdocs.org/sdr/SWAA031071), May 10, 2003: BEARING. WORN. DURING SCHEDULED SERVICE CHECK, FOUND AILERON CONTROL WHEEL SLOW WHEN RETURNING FROM LEFT TURN. REMOVED AND REPLACED AILERON CONTROL UPPER SHAFT BEARING PER MM. - [SDR SWAA030905](https://openairdocs.org/sdr/SWAA030905), Apr 23, 2003: LIGHT. MISSING. EEPLS SECTION MISSING AT ROW 21. INSTALLED EEPLS PER MM. - [SDR SWAA030890](https://openairdocs.org/sdr/SWAA030890), Apr 19, 2003: PRESSURE SWITCH. FAILED. NR 2 ENGINE OIL FILTER BY-PASS LIGHT ILLUMINATED. R&R NR 2 ENG OIL FILTER & OIL FILTER BY-PASS PRESS SW PER MM. - [SDR SWAA030700](https://openairdocs.org/sdr/SWAA030700), Mar 28, 2003: BATTERY. DISCHARGED. DURING SCHEDULED PM CHECK, FOUND RT EXTERIOR EMERGENCY EXIT LIGHTS INOP AT OVERWING EXIT AND FWD OF AFT CARGO DOOR. REMOVED AND REPLACED BATTERY PER MM. - [SDR SWAA030682](https://openairdocs.org/sdr/SWAA030682), Mar 25, 2003: HYDRAULIC LINE. LEAKING. AIR TURNBACK, DURING TAKEOFF, A-SYSTEM HYDRAULICS FAILED, LOW QUANTITY AND PRESSURE INDICATED. FOUND HYD LINE ON LT MLG ACTUATOR FAILED. REMOVED AND REPLACED HY - [SDR SWAA030634](https://openairdocs.org/sdr/SWAA030634), Mar 20, 2003: SKIN. CRACKED. DURING SCHEDULED 1/2D CHECK, FOUND AFT CARGO DOOR SKIN CRACKED AT AFT SIDE OF HANDLE CUTOUT. REPAIRED SKIN PER SWA EA. - [SDR SWAA030633](https://openairdocs.org/sdr/SWAA030633), Mar 18, 2003: SKIN. CRACKED. DURING SCHEDULED 1/2D CHECK, FOUND FUSELAGE SKIN CRACKED (2 EA) AT LOWER AFT CORNER OF AIRSTAIR CUTOUT, BS 350 BELOW STR 20L. REPAIRED SKIN PER SWA EA. - [SDR SWAA030615](https://openairdocs.org/sdr/SWAA030615), Mar 18, 2003: BELTFRAME. CRACKED. DURING SCHEDULED 1/2D CHECK, FOUND BELTFRAME CRACKED AT BS 639, RBL 64. R&R BELTFRAME PER SRM. All 201: https://openairdocs.org/deregistered/N721WN-2005-02-16/reports.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.