# N452UW: 1991 Boeing 737-4B7, registration cancelled 2014-08-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 12, 2014
- Status when cancelled: Valid registration
- Airframe: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (registry code 138449C)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Serial number: 24979
- Year built: 1991
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 18, 1991
- Certificate issued: January 18, 1991
- Last registry action: May 1, 2013
- Mode S code: A57B61
- 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/N452UW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=452UW
- Page: https://openairdocs.org/deregistered/N452UW-2014-08-12

From the FAA registry file of November 4, 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 (102, newest 50)

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

- [SDR USAA2014051900009](https://openairdocs.org/sdr/USAA2014051900009), May 19, 2014: LENS. MISSING. REPORTED AISLE EMERGENCY LIGHT MISSING LENS COVER AT 12ABC. INSTALLED LENS COVER AS REQUIRED AT 12ABC.
- [SDR USAA2014051600014](https://openairdocs.org/sdr/USAA2014051600014), May 16, 2014: SIGN. UNSECURE. CREW REPORTED THE FLOOR EXIT SIGN AT 12C HANGING BY WIRES. REPLACED EMERGENCY EXIT SIGN AT 12C. OPERATIONS CHECKED GOOD IAW AMM 33-51-11-962-002.
- [SDR USAA2014022400026](https://openairdocs.org/sdr/USAA2014022400026), Feb 22, 2014: CIRCUIT BOARD. FAULTY. DURING CRUISE, CREW REPORTED A SYS A FLIGHT CONTROL MASTER CAUTION. FLIGHT ATTENDANTS HEARD A LOUD POP FROM CTR OF ACFT. CREW FOLLOWED QRH & RETURNED TO FIELD A
- [SDR USAA2014013100003](https://openairdocs.org/sdr/USAA2014013100003), Jan 27, 2014: LENS. BROKEN. MAINTENANCE REPORTED THE RT OVERWING AFT EXIT SIGN IS IN POOR CONDITION. MAINTENANCE REPLACED BROKEN LENS ON RT OVERWING EXIT SIGN PER AMM 33-51-22.
- [SDR USAA2014012700022](https://openairdocs.org/sdr/USAA2014012700022), Jan 26, 2014: BATTERY PACK. DISCHARGED. MAINTENANCE REPORTED THE EMERGENCY LIGHTS AT ROW 12LT SIDEWALL, LOWER LIGHT BY EMERGENCY AFT INOPERATIVE. EXTERIOR EMERGENCY LIGHT, FWD, ALSO INOPERATIVE. LT SI
- [SDR USAA2013120200004](https://openairdocs.org/sdr/USAA2013120200004), Nov 30, 2013: SUPPORT. CORRODED. C6 CHECK CORROSION FOUND ON U CHANNEL SUPPORT FOR NLG DOOR STOP AT APPROXIMATELY BS 219.8, RBL 4. REPLACED LOWER CHORD AT BS 219.8, RBL 4 IAW B737 SRM 53-10-08-
- [SDR USAA2013112200004](https://openairdocs.org/sdr/USAA2013112200004), Nov 21, 2013: ANGLE. CORRODED. C6 CHECK LEVEL 2 EXFOLIATION CORROSION CHORD ANGLE AT CTR WING BOX OF LT REAR SPAR AT BS 664 BETWEEN LBL 45.5 TO LBL 65. REPAIRED CHORD ANGLE AT CTR WING BOX OF
- [SDR USAA2013110400008](https://openairdocs.org/sdr/USAA2013110400008), Nov 1, 2013: UNKNOWN. SMOKE. AFT F/A REPORTED SMOKE WAS COMING FROM AROUND BULKHEAD AREAS. ACCOMPLISHED CABIN AIR QUALITY TROUBLESHOOTING WITH NO FAULTS NOTED. NO FURTHER OCCURENCES.
- [SDR USAA2013101000002](https://openairdocs.org/sdr/USAA2013101000002), Oct 9, 2013: PLACARD. MISSING. ROW ABC EMERGENCY PLACARD MISSING. INSTALLED EMERGENCY PLACARD AT ROW ABC.
- [SDR USAA2013100900003](https://openairdocs.org/sdr/USAA2013100900003), Oct 8, 2013: LIGHT. LOOSE. EMERGENCY EXIT ROW LIGHT ON SEAT LOOSE. SECURED EMERGENCY EXIT ROW LIGHT. OPS CHECK GOOD.
- [SDR USAA2013092600006](https://openairdocs.org/sdr/USAA2013092600006), Sep 25, 2013: SLIDE. UNSECURE. CREW REPORTED AN ORANGE FLAG PROTRUDING FROM SLIDE COVER ON FWD ENTRY DOOR. MX INSPECTED L1 DOOR SLIDE AND RESECURED. ACFT OK FOR SERVICE.
- [SDR USAA2013092500010](https://openairdocs.org/sdr/USAA2013092500010), Sep 23, 2013: HINGE. BROKEN. DURING A CHECK, MX FOUND THE RT GROUND SPOILER INBD HINGE BROKEN. MX REPLACED RT GROUND SPOILER IAW AMM 27-62-12-004. OPS CHECK OK.
- [SDR USAA2013091900010](https://openairdocs.org/sdr/USAA2013091900010), Sep 18, 2013: TRANSMITTER. FAILED. DURING CRUISE AT FL300, ENROUTE, CREW REPORTED LOSS OF OIL PRESSURE ON NR 2 ENGINE. OIL PRESSURE WENT TO ZERO. SHUTDOWN NR 2 ENGINE IAW QRH, DECLARED AN EMERGEN
- [SDR USAA2013091300017](https://openairdocs.org/sdr/USAA2013091300017), Sep 13, 2013: LENS. MISSING. MX REPORTED THE UPPER EMERGENCY EXIT LIGHTING LENS AT 2 AC MISSING. MX INSTALLED LENS AT 2 AC IAW AMM 33-51-71-002-005.
- [SDR USAA2013072900041](https://openairdocs.org/sdr/USAA2013072900041), Jul 26, 2013: MODULE. DEFECTIVE. AFTER TAKEOFF, CREW REPORTED NOSE GEAR DID NOT RETRACT. RETURNED TO FIELD AND LANDED WITHOUT FURTHER INCIDENT. MX TROUBLESHOT NLG AND FOUND NLG MODULAR PACKAGE 
- [SDR USAA2013071800002](https://openairdocs.org/sdr/USAA2013071800002), Jul 15, 2013: CHARGER. INOPERATIVE. EMERGENCY LIGHTS INOPERATIVE IN 5 ROWS. MX REPLACED EMERGENCY LIGHTS BATTERY CHARGER.
- [SDR USAA2013062700005](https://openairdocs.org/sdr/USAA2013062700005), Jun 27, 2013: POWER SUPPLY. INOPERATIVE. MX REPORTED THE EMERGENCY LIGHTS ON LAST 2 ROWS OF AISLE SEAT INOP. MX REPLACED POWER SUPPLY IAW AMM 33-51-51-202, TASK 962-016. OPS CHECK GOOD.
- [SDR USAA2013062600007](https://openairdocs.org/sdr/USAA2013062600007), Jun 25, 2013: BATTERY PACK. DISCHARGED. MX REPORTED THE AFT RT EMERGENCY EXIT BATTERY PACK M1137 WILL NOT ILLUMINATE LIGHTS. MX REPLACED M1137 EMERGENCY BATTERY PACK IAW AMM 33-51-51-962-015.
- [SDR USAA2013050600017](https://openairdocs.org/sdr/USAA2013050600017), May 5, 2013: SIGN. MISSING. CREW REPORTED THE "EXIT" SIGN ON SEAT 11C IS MISSING. MAINTENANCE REPLACED "EXIT" SIGN ON EMERGENCY LIGHT ASSEMBLY AT SEAT 11C.
- [SDR USAA2013031400005](https://openairdocs.org/sdr/USAA2013031400005), Mar 11, 2013: ENGINE. CONTAMINATED. ON THE START ARRIVAL TO FLL, CREW REPORTED A COMPLETE ENGINE FAILURE OF ENGINE NR 1 WITH APPARENT SEVERE DAMAGE. FLIGHT DIVERTED TO KMCO AFTER DECLARING AN EMER
- [SDR USAA2013031100022](https://openairdocs.org/sdr/USAA2013031100022), Mar 11, 2013: SIGN. INOPERATIVE. MAINTENANCE REPORTED SEAT 12 LEFT "EXIT" SIGN INOP. MAINTENANCE REMOVED AND REPLACED EXIT SIGN ASSEMBLY PER AMM 33-50-00. OPS CHECK GOOD.
- [SDR USAA2013010900004](https://openairdocs.org/sdr/USAA2013010900004), Jan 8, 2013: COVER. BROKEN. CREW REPORTED THE PLASTIC LENS COVER ON SEAT AT EXIT ROW BROKEN. MAINTENANCE REPLACED EMERGENCY LIGHT ASSEMBLY AS REQUIRED AT EXIT ROW 11C. OPS CHECK NORMAL.
- [SDR USAA2013010800008](https://openairdocs.org/sdr/USAA2013010800008), Jan 7, 2013: SIGN. BROKEN. MAINTENANCE REPORTED THE LIGHTED "EXIT" SIGN AT SEAT 11C BROKEN (NEAR EXIT PATH LIGHTING). MAINTENANCE REPLACED EMERGENCY EXIT ROW PLACARD/SIGN.
- [SDR USAA2012122100004](https://openairdocs.org/sdr/USAA2012122100004), Dec 19, 2012: CONTROLLER. FAILED. DURING APPROACH IN AUTO MODE, CREW REPORTED THE CABIN DID NOT DESCEND AND THEN DEPRESSURIZED AT 2,000 FEET WENT TO STANDBY AND DID NOT PRESSURIZE. MAINTENANCE R
- [SDR USAA2012102200005](https://openairdocs.org/sdr/USAA2012102200005), Oct 20, 2012: LENS. MISSING. RON - COVER LENS MISSING FROM EMERGENCY LIGHT AT SEAT 12D. REPLACED LENS ON EMERGENCY LIGHT AT SEAT 12D AS REQUIRED.
- [SDR USAA2012071700005](https://openairdocs.org/sdr/USAA2012071700005), Jul 16, 2012: LENS. MISSING. SEAT 11C EMERGENCY EXIT LIGHT LENS MISSING. REPLACED MISSING EMERGENCY LIGHT LENS AT SEAT 11C.
- [SDR USAA2012052900004](https://openairdocs.org/sdr/USAA2012052900004), May 27, 2012: LENS. UNSECURE. F/A ADVISED EMERGENCY EXIT LIGHT COVER AT SEAT 11A-C NEEDS SECURING. SECURED COVER ON EMERGENCY LIGHT AT SEAT 11ABC, OPERATED LIGHTS. OK FOR SERVICE.
- [SDR USAA2012052100002](https://openairdocs.org/sdr/USAA2012052100002), May 20, 2012: COVER. BROKEN. CREW REPORTED THE COVER FOR EMERGENCY EXIT LIGHT AT SEAT 11C IS BROKEN. MAINTENANCE REPAIRED EXIT LIGHT AT SEAT 11C. CHECKS GOOD PER AMM 33-50-00.
- [SDR USAA2012031600014](https://openairdocs.org/sdr/USAA2012031600014), Mar 15, 2012: LIGHT. DAMAGED. EXIT ROW LIGHTS NEED REPAIRED. MAINTENANCE REPAIRED EXIT ROW LIGHTS AS REQUIRED.
- [SDR USAA2012022900006](https://openairdocs.org/sdr/USAA2012022900006), Feb 28, 2012: FUSE. BLOWN. C4 CHECK - RIGHT OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. REPLACED POWER SUPPLY FUSE FOR RIGHT OVERWING EMERGENCY EXIT LIGHT OPERATION CHECKED GOOD, IAW B737-
- [SDR USAA2012022800017](https://openairdocs.org/sdr/USAA2012022800017), Feb 27, 2012: SLIDE. DAMAGED. C6 CHECK - L2 DOOR ESCAPE SLIDE GIRT BAR CENTERING TUBE DAMAGED & LOOSE FROM GIRT. REPLACED L2 DOOR ESCAPE SLIDE ASSEMBLY IAW JOB CARD 03T10025002.
- [SDR USAA2012022700018](https://openairdocs.org/sdr/USAA2012022700018), Feb 23, 2012: SKIN. CORRODED. C4 CHECK - NR 2 SPOILER HAS CORRODED & SPINNING INSERTS FOR SEAL 8 INCHES FROM TRAILING EDGE BETWEEN WBL 342.53 TO WBL 395.0. REPLACED NR 2 SPOILER PANEL IAW AM
- [SDR USAA2012022900009](https://openairdocs.org/sdr/USAA2012022900009), Feb 22, 2012: SKIN. CRACKED. C4 CHECK - 1.5 INCH LONG CRACK IN FUSELAGE SKIN AT BS 727D+3 INCHES, S23L. REPAIRED FUSELAGE SKIN AT BS 727D+3 INCHES, S23L IAW SRM 53-00-01-2R-31, FIG 201 DETA
- [SDR USAA2012030100003](https://openairdocs.org/sdr/USAA2012030100003), Feb 21, 2012: SKIN. CRACKED. C4 CHECK - .50 INCH LONG CRACK IN FUSELAGE SKIN AT L2 DOOR LOWER SKIN CUTOUT AT BS 947, S14L. REPAIRED FUSELAGE SKIN AT BS 947, S14L IAW EA 130811.
- [SDR USAA2012022700021](https://openairdocs.org/sdr/USAA2012022700021), Feb 21, 2012: SKIN. CRACKED. C4 CHECK - 1.25 INCH LONG CRACK IN FUSELAGE SKIN AT BS 727E, S24R. REPAIRED FUSELAGE SKIN AT BS 727E, S24R IAW SRM 53-00-01-2R-31 PROCEDURE V, FIG 201, DETAIL X
- [SDR USAA2012022700020](https://openairdocs.org/sdr/USAA2012022700020), Feb 21, 2012: SKIN. CRACKED. C4 CHECK - 1 INCH LONG CRACK IN FUSELAGE SKIN AT BS 727F, S25R. REPAIRED FUSELAGE SKIN AT BS 727F, S25R IAW SRM 53-00-01-2R-31 FIG 201, DETAIL XIX PROCEDURE V.
- [SDR USAA2012022700019](https://openairdocs.org/sdr/USAA2012022700019), Feb 21, 2012: SKIN. CRACKED. C4 CHECK - 1.25 INCH LONG CRACK IN FUSELAGE SKIN AT BS 727F+3 INCHES, S22R. REPAIRED FUSELAGE SKIN AT BS 727F+3 INCHES, S22R IAW SRM 53-00-01-2R-31, PROCEDURE V
- [SDR USAA2012022900008](https://openairdocs.org/sdr/USAA2012022900008), Feb 19, 2012: SKIN PANEL. CRACKED. C4 CHECK - .250 INCH CRACK IN RIGHT PYLON ACCESS DOOR 5828R FRAME WORK FLANGE AT NAC STA 213.0 APPROX 1.25 INCHES FROM OUTBOARD EDGE. REPAIRED RIGHT PYLON ACCES
- [SDR USAA2012013000023](https://openairdocs.org/sdr/USAA2012013000023), Jan 28, 2012: LENS. MISSING. MAINTENANCE REPORTED THE EMERGENCY LIGHT LENS MISSING AT SEAT 8C. MAINTENANCE INSTALLED MISSING LENS PER 25-40-61.
- [SDR USAA2012011800020](https://openairdocs.org/sdr/USAA2012011800020), Jan 16, 2012: ATTACH BRACKET. BROKEN. CREW REPORTED THE NR 4 GROUND SPOILER DID NOT DEPLOY AND FLUTTERED UPON LANDING. UPON EVALUATION, MAINTENANCE FOUND THE NR 4 GROUND SPOILER ATTACH BRACKETS TO B
- [SDR USAA2011112500005](https://openairdocs.org/sdr/USAA2011112500005), Nov 23, 2011: LIGHT. SHORTED. CREW REPORTED THE FIRST OFFICER'S KIT LIGHT SHORTED, FLASHED BLUE FIRE AND TRIPPED CIRCUIT BREAKER FOR MAP AND KIT. MAINTENANCE REMOVED AND REPLACED FIRST OFFIC
- [SDR USAA2011111500010](https://openairdocs.org/sdr/USAA2011111500010), Nov 14, 2011: FILTER. DIRTY. CREW SMELLED A KEROSENE ODOR IN THE CABIN AFTER TURNING ON THE APU BLEED AND RIGHT PACK ON HIGH. MAINTENANCE ACCOMPLISHED JOB CARD 03L00021001, "737 TROUBLESHOO
- [SDR USAA2011072100006](https://openairdocs.org/sdr/USAA2011072100006), Jul 18, 2011: ENGINE. FAILED. EN ROUTE FROM CLT TO IAH, AT FL320, CREW REPORTED THE NR 1 ENGINE LOW OIL PRESSURE LIGHT ILLUMINATED. OIL PRESSURE READ ZERO, OIL QUANTITY WAS NORMAL, N1 AND N2
- [SDR USAA2011030390942](https://openairdocs.org/sdr/USAA2011030390942), Feb 28, 2011: BEAM. CRACKED. CLT - C1 - MAJOR REPAIR - CRACK ON FORWARD SERVICE DOOR LOWER PAN (BEAM 1) TRAILING EDGE CORNER. REPLACED FORWARD SERVICE DOOR IAW JOB CARD 03C10652008.
- [SDR USAA2011030390941](https://openairdocs.org/sdr/USAA2011030390941), Feb 28, 2011: SKIN. CRACKED. CLT - C1 - MAJOR REPAIR - CRACK ON FUSELAGE SKIN AT BS 958, S10R AT AFT SERVICE DOOR UPPER HINGE CUTOUT. REPAIRED FUSELAGE SKIN AT BS 958, S10R AT AFT SERVICE D
- [SDR USAA20110201SB023](https://openairdocs.org/sdr/USAA20110201SB023), Feb 1, 2011: DOOR. DETACHED. CLT - CREW REPORTED THE OVERHEAD BIN DOOR AT ROW 6ABC CAME OFF DURING TAKEOFF AND STRUCK A PASSENGER SEATED BELOW. PASSENGER WAS NOT INJURED. APPEARS THE BIN DO
- [SDR USAA20100813SB131](https://openairdocs.org/sdr/USAA20100813SB131), Aug 13, 2010: CHARGER. INOPERATIVE. CLT - THE L1 DOOR EMERGENCY LIGHTS WERE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK AND CHARGER. OPERATIONALLY CHECKS GOOD.
- [SDR USAA20100311SB033](https://openairdocs.org/sdr/USAA20100311SB033), Mar 10, 2010: CHARGER. INOPERATIVE. BDL - MAINTENANCE REPORTED ALL EMERGENCY LIGHTS ASSOCIATED WITH BATTERY CHARGER M1137 (AFT RIGHT) WOULD NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE AFT
- [SDR USAA2010022390431](https://openairdocs.org/sdr/USAA2010022390431), Feb 22, 2010: SKIN. CRACKED. CLT - Q1 - MAJOR REPAIR - CRACK IN SKIN AT BS 178 BULKHEAD, WL 234, LBL 10. REPAIRED SKIN AT BS 178 BULKHEAD, WL 234, LBL 10 IAW B737 SRM 53-10-08.
- [SDR USAA2010030190462](https://openairdocs.org/sdr/USAA2010030190462), Feb 21, 2010: SKIN. CRACKED. CLT - Q1 - MAJOR REPAIR - CRACK INDICATIONS ON FUSELAGE AT LOWER HINGE OF MAIN ENTRY DOOR CUTOUT BS 304.5, WL 237.7. REPAIRED FUSELAGE AT LOWER HINGE OF MAIN EN

All 102: https://openairdocs.org/deregistered/N452UW-2014-08-12/reports.md

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