# N450UW: 1990 Boeing 737-4B7, registration cancelled 2018-02-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 28, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (registry code 138449C)
- Engine: [GE CFM56 series](https://openairdocs.org/engine/ge-cfm56-series) (registry code 30016)
- Serial number: 24933
- Year built: 1990
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: November 29, 1990
- Certificate issued: December 31, 1990
- Last registry action: January 18, 2013
- Mode S code: A573F3
- Owner when cancelled: [Wilmington Trust Company Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20COMPANY%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 was based
- The mark today: https://openairdocs.org/aircraft/N450UW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=450UW
- Page: https://openairdocs.org/deregistered/N450UW-2018-02-28

From the FAA registry file of November 5, 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 737-4B7: https://openairdocs.org/model/boeing-737-4b7.md

## Service difficulty reports (136, newest 50)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR USAA2013121200005](https://openairdocs.org/sdr/USAA2013121200005), Dec 11, 2013: LENS. MISSING. THE EXIT PLACARD COVER AT ROW 12, ACFT LT, APPEARS TO BE MISSING. INSTALLED MISSING PLACARD LENS. ACFT OK FOR CONTINUED SERVICE.
- [SDR USAA2013100300006](https://openairdocs.org/sdr/USAA2013100300006), Oct 2, 2013: STOP FITTING. CRACKED. C1 CHECK, CRACK ON FWD SERVICE DOOR AFT FRAME DOOR STOP FITTING CUTOUT 4TH DOWN AT BS 320. REPLACED FWD SERVICE DOOR.
- [SDR USAA2013100300005](https://openairdocs.org/sdr/USAA2013100300005), Oct 2, 2013: DOOR FRAME. CRACKED. C1 CHECK, CRACK ON FWD SERVICE DOOR LOWER CORNER OF AFT FRAME AT BS 320. REPLACED FORWARD SERVICE DOOR.
- [SDR USAA2013100300004](https://openairdocs.org/sdr/USAA2013100300004), Oct 2, 2013: STOP FITTING. CRACKED. C1 CHECK, CRACK ON FORWARD SERVICE DOOR AFT FRAME DOOR STOP FITTING CUTOUT 3RD DOWN AT BS320. REPLACED FORWARD SERVICE DOOR IAW JOB CARD 03C10652008.
- [SDR USAA2013100300007](https://openairdocs.org/sdr/USAA2013100300007), Oct 1, 2013: FLAP TRACK. CORRODED. C1 CHECK, CORROSION FOUND ON NR 2 FLAP TRACK UPPER SURFACE ATTACH AREA, UPPER FORWARD TRANSMISSION BOLT HOLE & ON THE OTBD SIDE JUST FORWARD OF THE TRANSMISSION
- [SDR USAA2013100300003](https://openairdocs.org/sdr/USAA2013100300003), Sep 27, 2013: SKIN. DELAMINATED. C1 CHECK, DELAMINATION ON RT OTBD FORE FLAP LOWER SURFACE APPROX 43 INCHES FROM INBD END. REPAIRED IAW SRM 57-53-02-2R-2.
- [SDR USAA2013092700005](https://openairdocs.org/sdr/USAA2013092700005), Sep 26, 2013: SKIN. CRACKED. C1 CHECK, CRACK ON FUSELAGE SKIN AT BS 727F+4. REPAIRED SKIN IAW SRM 53-00-01-2R-31.
- [SDR USAA2013081200009](https://openairdocs.org/sdr/USAA2013081200009), Aug 12, 2013: UNKNOWN. ODOR. DURING DEPLANING, THE LEAD F/A REPORTED AN ODOR IN FIRST CLASS AREA. MX ACCOMPLISHED 03L00021001. ACFT FOUND TO BE OK FOR SERVICE.
- [SDR USAA2013042600017](https://openairdocs.org/sdr/USAA2013042600017), Apr 25, 2013: LENS. LOOSE. CREW REPORTED ROW 10 EMERGENCY EXIT LENSE LOOSE. MAINTENANCE TIGHTENED LIGHT LENS. CHECKS GOOD.
- [SDR USAA2013040300018](https://openairdocs.org/sdr/USAA2013040300018), Apr 3, 2013: SPOILER. DELAMINATED. RON VISIT - DELAMINATION ON LEFT INBOARD GROUND SPOILER AT APPROX 21.5 INCHES FROM INBOARD END & 8.5 INCHES FROM TRAILING EDGE. REPLACED LEFT INBOARD GROUND SPO
- [SDR USAA2013032900009](https://openairdocs.org/sdr/USAA2013032900009), Mar 27, 2013: TIRE. FAILED. ON TAKEOFF OUT OF BDL, THE NR 2 TIRE FAILED WHICH DAMAGED THE LEFT INBOARD FLAP ASSEMBLY. COMPLETED TIRE BURTS CONDITIONAL INSPECTION & MADE REPAIRS AS NECESSAR
- [SDR USAA2012120700007](https://openairdocs.org/sdr/USAA2012120700007), Dec 6, 2012: FLAP. DELAMINATED. PREFLIGHT - RIGHT INBOARD AFT FLAP DELAMINATED AT TRAILING EDGE FOUR (4) INCHES INBOARD OF OUTBOARD END. REMOVED AND REPLACED AFT FLAP IAW B737-400 AMM 27-51-11
- [SDR USAA2012111900012](https://openairdocs.org/sdr/USAA2012111900012), Nov 16, 2012: LENS. MISSING. MAINTENANCE REPORTED ROW 1 LOW LEVEL LIGHT LENS MISSING. MAINTENANCE REPLACED ROW 1 LOW LEVEL LIGHT LENS.
- [SDR USAA2012101000003](https://openairdocs.org/sdr/USAA2012101000003), Oct 9, 2012: SEAT BACK. OUT OF ADJUST. CREW REPORTED EXIT ROW 10 AND 11 SEATS RECLINE INTO EXIT ROWS (10BDE AND 11BCE). MAINTENANCE DEACTIVATED RECLINE AND ADJUSTED SEAT BACKS PER MM 25-22-00-252-058
- [SDR USAA2012100200004](https://openairdocs.org/sdr/USAA2012100200004), Oct 2, 2012: SKIN PANEL. DELAMINATED. C6 CHECK - .5 INCH AREA OF DELAMINATION ON LEFT WING NR 1 SPOILER UPPER SURFACE AT OUTBOARD TRAILING EDGE BETWEEN WS 594.50 TO WS 652.50. REPLACED LEFT WING NR 
- [SDR USAA2012092800009](https://openairdocs.org/sdr/USAA2012092800009), Sep 24, 2012: SKIN. CRACKED. C6 CHECK - CRACK IN RIGHT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 124.8 APPROX 1 INCH FORWARD OF REAR SPAR. REPAIRED RIGHT HORIZONTAL STABILIZER LOWER SKIN
- [SDR USAA2012071800002](https://openairdocs.org/sdr/USAA2012071800002), Jul 17, 2012: WIRE. DAMAGED. RON - EMERGENCY PATH LIGHTING INOPERATIVE AT ROWS 4ABC TO 8ABC. REPAIRED WIRING FOR EMERGENCY PATH LIGHTING AT ROWS 4ABC TO 8ABC IAW SWPM 20-30-12, 20-10-13. OP
- [SDR USAA2012062700011](https://openairdocs.org/sdr/USAA2012062700011), Jun 26, 2012: BULKHEAD. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION. BULKHEAD SKIN CRACKED AT BS 178, WL 218, RBL 17. REPAIRED CRACK IAW B737 SRM 53-10-08-2R - REPAIR 9.
- [SDR USAA2012062700008](https://openairdocs.org/sdr/USAA2012062700008), Jun 26, 2012: BULKHEAD. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION. BULKHEAD SKIN CRACKED AT BS 178, WL 218 FROM LBL 5.7 TO LBL 17. REPAIRED CRACK IAW B737 SRM 53-10-08-2R - REPAIR 9.
- [SDR USAA2012062800027](https://openairdocs.org/sdr/USAA2012062800027), Jun 25, 2012: SKIN. CRACKED. FPBH INSPECTION - FUSELAGE SKIN CRACKED AT BS 727E AND S24R. REPAIRIED FUSELAGE SKIN AT BS 727E AND S24R IAW B737 SRM 53-00-01-2R-31.
- [SDR USAA2012070300005](https://openairdocs.org/sdr/USAA2012070300005), Jun 23, 2012: BULKHEAD. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION, FORWARD PRESSURE BULKHEAD SKIN CRACKED AT BS 178, WL 218, FROM RBL 5.7 TO RBL 17. REPAIRED BULKHEAD SKIN IAW B737 SRM 53-1
- [SDR USAA2012070300004](https://openairdocs.org/sdr/USAA2012070300004), Jun 23, 2012: BULKHEAD. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION FORWARD PRESSURE BULKHEAD SKIN CRACKED AT BS 178, WL 218, FROM LBL 5.7 TO LBL 17. REPAIRED BULKHEAD SKIN IAW B737 SRM 53-10
- [SDR USAA2012070300003](https://openairdocs.org/sdr/USAA2012070300003), Jun 21, 2012: FRAME. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION FUSELAGE FRAME CRACKED AT BS 500G, BETWEEN S20R & S21R. REPAIRED FRAME IAW B737 SRM 53-00-07-2R-13.
- [SDR USAA2012062900004](https://openairdocs.org/sdr/USAA2012062900004), Jun 21, 2012: FRAME. CRACKED. FPBH INSPECTION - FRAME CRACKED AT BS 500F BETWEEN S20L AND S21L. REPAIRED FRAME AT BS 500F BETWEEN S20L AND S21L IAW B737 SRM 53-00-07 REPAIR 13.
- [SDR USAA2012062500012](https://openairdocs.org/sdr/USAA2012062500012), Jun 21, 2012: FRAME. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION, FRAME CRACKED AT BS 500D, BETWEEN S20L & S21L. REPAIRED FRAME IAW B737 SRM 53-00-07 REPAIR 13.
- [SDR USAA2012062500011](https://openairdocs.org/sdr/USAA2012062500011), Jun 21, 2012: FRAME. CRACKED. FORWARD PRESSURE BULKHEAD INSPECTION, FRAME CRACKED AT BS 500C, BETWEEN S20R & S21R. REPAIRED FRAME IAW B737 SRM 53-00-07 REPAIR 13.
- [SDR USAA2012041800008](https://openairdocs.org/sdr/USAA2012041800008), Apr 18, 2012: SIGN. MISSING. EMERG EXIT LIGHT SIGN SEAT 11C MISSING. RE-ATTACHED MISSING EMERG EXIT LIGHT, OPS CHECKS GOOD.
- [SDR USAA2012030900015](https://openairdocs.org/sdr/USAA2012030900015), Mar 8, 2012: LIGHT. DAMAGED. CREW REPORTED THE EXIT LIGHT AT SEAT 11C (SEAT LEVEL) WAS RIPPED OFF AND PLATE BENT. WIRES ARE EXPOSED. SENT ACARS MESSAGE AT 01:25Z. MAINTENANCE REPAIRED EXIT 
- [SDR USAA2012022400016](https://openairdocs.org/sdr/USAA2012022400016), Feb 20, 2012: PANEL. DELAMINATED. LINE NR - RIGHT WING NR 6 SPOILER BOARD (FLT) HAS AREA OF DELAMINATION APPROX 10 INCHES IN DIAMETER. REPLACED RIGHT WING NR 6 SPOILER BOARD IAW B737 AMM 27-61-1
- [SDR USAA2012022100016](https://openairdocs.org/sdr/USAA2012022100016), Feb 18, 2012: ENGINE. LEAKING. UPON DESCENT TO RSW, CREW REPORTED DIRTY SOCK FUMES PRESENT THROUGHOUT CABIN AND COCKPIT. CREW PLACED PACKS ON HIGH TO GET MAXIMUM VENTILATION. ODOR WASN'T AS B
- [SDR USAA2012012500014](https://openairdocs.org/sdr/USAA2012012500014), Jan 24, 2012: TEE FITTING. LEAKING. CREW REPORTED THAT WITH AIRCRAFT PACKS IN AUTO, THERE IS A NOTICEABLE ODOR IN THE COCKPIT AND CABIN (ODOR SMELLED LIKE DIRTY SOCKS). WITH PACKS IN HIGH, THE ODO
- [SDR USAA2012012300028](https://openairdocs.org/sdr/USAA2012012300028), Jan 20, 2012: UNKNOWN. ODOR. DURING DESCENT, THROUGH 10.000 FEET, CREW REPORTED A CABIN AIR ODOR LIKE SOUR MILK THAT BECAME VERY STRONG, IT LASTED UNTIL TOUCHDOWN. MAINTENANCE ACCOMPLISHED 
- [SDR USAA2012011200011](https://openairdocs.org/sdr/USAA2012011200011), Jan 12, 2012: CHARGER. INOPERATIVE. MAINTENANCE REPORTED THE EMERGENCY PATH LIGHTING NOT WORKING ON SEAT ROWS 12 THRU 18. MAINTENANCE REPLACED THE BATTERY CHARGER AT STA 754 PER AMM 33-51-51.
- [SDR USAA2011121900012](https://openairdocs.org/sdr/USAA2011121900012), Dec 17, 2011: TAB. SEPARATED. C5 CHECK - FOUR EACH 1" X .250" AREAS OF MISSING MOISTURE BARRIER ON LEFT ELEVATOR TAB UPPER SURF LEADING EDGE. REPLACED LEFT ELEVATOR TAB IAW B737 AMM 27-31-31
- [SDR USAA2011121900011](https://openairdocs.org/sdr/USAA2011121900011), Dec 17, 2011: TAB. DELAMINATED. C5 CHECK - DELAMINATION ON RIGHT ELEVATOR TAB TRAILING EDGE. REPLACED RIGHT ELEVATOR TAB IAW JOB CARD 03C71227004.
- [SDR USAA2011121900010](https://openairdocs.org/sdr/USAA2011121900010), Dec 15, 2011: DOOR. CRACKED. C5 CHECK - CRACK ON FORWARD CARGO DOOR INTERIOR SKIN APPROX 3 INCHES FORWARD OF AFT GUIDE ROLLER & 18 INCHES UP FROM BOTTOM EDGE. REPLACED RIGHT ELEVATOR TAB IA
- [SDR USAA2011121600006](https://openairdocs.org/sdr/USAA2011121600006), Dec 13, 2011: SKIN. CRACKED. C5 CHECK - CRACK ON FUSELAGE SKIN BETWEEN BS 727E+7 INCHES TO BS 727D+19 INCHES & BETWEEN S25L TO S24L. REPAIRED FUSELAGE SKIN BETWEEN BS 727E+7 INCHES TO BS 72
- [SDR USAA2011110900009](https://openairdocs.org/sdr/USAA2011110900009), Nov 9, 2011: SKIN. CRACKED. SKIN CRACK - 1.25 INCH LONG CRACK EXTENDING FROM AFT SIDE OF AVIONICS BAY COOLING DUCT OUTLET. CRACK EXISTS IN SKIN, DOUBLER & DUCT FLANGE. REPAIRED FUSELAGE SK
- [SDR USAA2011101700011](https://openairdocs.org/sdr/USAA2011101700011), Oct 14, 2011: PLACARD. MISSING. CREW REPORTED SEAT 12C EMERGENCY PLACARD MISSING. MAINTENANCE REMOVED AND REPLACED ROW 12 EMERGENCY PATH LIGHTING ASSEMBLY PER AMM 33-50-00. OPS CHECK GOOD.
- [SDR USAA2011100700006](https://openairdocs.org/sdr/USAA2011100700006), Oct 6, 2011: LIGHT. MISSING. EMERGENCY LIGHT SEAT 4C LOWER ARM REST IS MISSING. INSTALLED LIGHT ASSY, CHECKS GOOD.
- [SDR USAA2011091500002](https://openairdocs.org/sdr/USAA2011091500002), Sep 14, 2011: LENS. MISSING. MAINTENANCE REPORTED THE EMERGENCY EXIT LENS MISSING ON SEAT ROW 12ABC. MAINTENANCE INSTALLED EXIT LENS ON SEAT ROW 12ABC.
- [SDR USAA2011091300012](https://openairdocs.org/sdr/USAA2011091300012), Sep 12, 2011: LENS. BROKEN. CREW REPORTED ROW 4, SEAT C, EMERGENCY EXIT LIGHT IS BROKEN. MAINTENANCE REMOVED AND REPLACED EMERGENCY EXIT LIGHT LENS. OPS CHECK GOOD.
- [SDR USAA2011090800025](https://openairdocs.org/sdr/USAA2011090800025), Sep 8, 2011: LIGHT. MISINSTALLED. MAINTENANCE REPORTED THE EMERGENCY LIGHT WAS ON BACKWARDS AT SEAT 11C. MAINTENANCE REPOSITIONED EMERGENCY LIGHT AT SEAT 11C TO CORRECT POSITION OF AISLE VISIBIL
- [SDR USAA2011090200005](https://openairdocs.org/sdr/USAA2011090200005), Sep 1, 2011: LIGHT. BROKEN. CREW REPORTED THE LEFT UNDERNEATH EMERGENCY LIGHT AT EMERGENCY WINDOW ROW IS BROKEN OFF MOUNT. MAINTENANCE REPLACED EMERGENCY LIGHT ASSEMBLY. OPS CHECK OK.
- [SDR USAA2011071500019](https://openairdocs.org/sdr/USAA2011071500019), Jul 15, 2011: LENS. MISSING. MAINTENANCE REPORTED THE EMERGENCY LIGHT LENS MISSING AT ROW 11. MAINTENANCE INSTALLED LENS. AIRCRAFT OK FOR SERVICE.
- [SDR USAA2011070800015](https://openairdocs.org/sdr/USAA2011070800015), Jul 7, 2011: WIRE. EXPOSED. EN ROUTE FROM CLT TO BOS, CAPTAIN REPORTED HE WAS SHOCKED BY THE L2 WINDOW CONNECTOR FOR WINDOW HEAT. MAINTENANCE REPAIRED WIRE ON CONDUIT. LEFT SIDE WINDOW HEA
- [SDR USAA2010122793242](https://openairdocs.org/sdr/USAA2010122793242), Dec 24, 2010: SKIN. DAMAGED. CLT- MAJOR REPAIR - C4 CHECK - NR 03C40057003/013, RIGHT WING NR 4 SLAT HAS A PREVIOUS REPAIR DISBONDED ON THE UPPER SUFRACE AT THE INBOARD TRAILING EDGE. REPAI
- [SDR USAA2010122793241](https://openairdocs.org/sdr/USAA2010122793241), Dec 21, 2010: SKIN. CRACKED. CLT - MAJOR REPAIR - C4 CHECK - CRACKED FUSELAGE SKIN AT BS 727 + 7, S25L. REPAIRED FUSELAGE SKIN AT BS 727 + 7, S25L IAW B737 SRM 53-00-01 REPAIR 31.
- [SDR USAA2010092492096](https://openairdocs.org/sdr/USAA2010092492096), Sep 23, 2010: SKIN. CRACKED. CLT - RON - MAJOR REPAIR - CRACK ON FUSELAGE SKIN AT BS 943, S26R. REPAIRED FUSELAGE SKIN AT BS 943, S26R IAW B737 SRM 53-00-01 REPAIR 31.
- [SDR USAA20100810SB130](https://openairdocs.org/sdr/USAA20100810SB130), Aug 6, 2010: TIRE. BLOWN. PHL - AIRCRAFT BLEW A TIRE ON TAKEOFF OUT OF PHL. CREW BELIEVES IT WAS THE LEFT MAIN, FELT A VIBRATION ON THE LEFT SIDE AFTER TAKEOFF. CREW FELT IN THE SIDE OF 

All 136: https://openairdocs.org/deregistered/N450UW-2018-02-28/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 20100806039449I](https://openairdocs.org/incident/20100806039449I), Aug 6, 2010: Boeing 737-4B7 (N450UW), Philadelphia, PA, Minor damage. Phl tower reports:usairways flight 1651, a Boeing B737, returned to land on runway 27L.aircraft reported a blown tire on take-off rotation. PIC accomplished a…

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