# N424US: Boeing 737-401, registration cancelled 2022-02-11

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 11, 2022
- Exported to: Ecuador
- Status when cancelled: Sale reported
- Airframe: [Boeing 737-401](https://openairdocs.org/model/boeing-737-401) (registry code 138449B)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (OpenAirDocs)
- Serial number: 23991
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 18, 1989
- Last registry action: February 11, 2022
- Mode S code: A50C4E
- Location: [Xxx, OK](https://openairdocs.org/faa-place/OK/Xxx)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N424US
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=424US
- Page: https://openairdocs.org/deregistered/N424US-2022-02-11

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 737-401: https://openairdocs.org/model/boeing-737-401.md

## Service difficulty reports (179, newest 50)

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

- [SDR USAA2013041900005](https://openairdocs.org/sdr/USAA2013041900005), Apr 18, 2013: BATTERY PACK. DISCHARGED. SHORT TERM STORAGE. EMERGENCY EXIT LIGHT OVER L-2 DOOR INOPERATIVE. REMOVED AND REPLACED BATTERY PACK IAW B737 AMM REF 33-51-51. EMERGENCY EXIT LIGHT OVER L2 DO
- [SDR USAA2013041800006](https://openairdocs.org/sdr/USAA2013041800006), Apr 17, 2013: BATTERY PACK. DISCHARGED. SHORT TERM STORAGE. AFT GALLEY EMERGENCY EXIT LIGHT INOP (CTR). REMOVED AND REPLACED BATTERY PACK M1197 FOR AFT GALLEY LIGHT (CTR) IAW B737 AMM 33-51-51. OPS CH
- [SDR USAA2013041800005](https://openairdocs.org/sdr/USAA2013041800005), Apr 17, 2013: BATTERY PACK. DISCHARGED. SHORT TERM STORAGE. RIGHT AFT GALLEY DOOR EMERGENCY LIGHT INOP. REMOVED AND REPLACED BATTERY PACK M1197 FOR RIGHT AFT GALLEY DOOR EMERGENCY EXIT LIGHT IAW B737 
- [SDR USAA2013041800004](https://openairdocs.org/sdr/USAA2013041800004), Apr 17, 2013: BATTERY PACK. DISCHARGED. SHORT TERM STORAGE. LEFT AFT GALLEY DOOR EMERGENCY EXIT LIGHT INOP. REMOVED AND REPLACED BATTERY PACK M1137 LEFT AFT GALLEY DOOR EMERGENCY LIGHT IAW B-737 AMM 3
- [SDR USAA2013012800029](https://openairdocs.org/sdr/USAA2013012800029), Jan 23, 2013: SUPPORT FITTING. CRACKED. C2 CHECK - CRACK ON RIGHT MAIN LANDING GEAR SUPPORT FITTING IN THE NR 2 HOLE AT WL 160. REPLACED RIGHT MAIN LANDING GEAR SUPPORT FITTING IAW EO 5702V054.
- [SDR USAA2012101200017](https://openairdocs.org/sdr/USAA2012101200017), Oct 12, 2012: LIGHT. UNSECURE. CREW REPORTED THE EMERGENCY LIGHT AT ROW 4ABC HANGING DOWN. MAINTENANCE REPLACED THE EMERGENCY LIGHT ASSEMBLY AT ROW 4ABC. LIGHT OPS CHECK GOOD.
- [SDR USAA2012082800009](https://openairdocs.org/sdr/USAA2012082800009), Aug 27, 2012: WIRE. BROKEN. MAINTENANCE REPORTED SEAT 13C AND 24C EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE FOUND BROKEN WIRES AT SEAT 13C AND 24C. REPAIRED WITH SPLICE AND OPS CHECK OK.
- [SDR USAA2012072500005](https://openairdocs.org/sdr/USAA2012072500005), Jul 24, 2012: COVER. UNSECURE. CREW REPORTED THE EMERGENCY EXIT LIGHT COVER ON SEAT 12C CAME OFF. MAINTENANCE RE-INSTALLED EMERGENCY EXIT LIGHT AT SEAT 12C. OPS CHECK GOOD. AIRCRAFT OK FOR SE
- [SDR USAA2012072500004](https://openairdocs.org/sdr/USAA2012072500004), Jul 24, 2012: SIGN. UNSECURE. CREW REPORTED THE EXIT SIGN OVER SEAT 12ABC NEEDS RE-ATTATCHED. MAINTENANCE RE-INSTALLED EMERGENCY EXIT SIGN AS REQUIRED. AIRCRAFT OK FOR SERVICE.
- [SDR USAA2012070200033](https://openairdocs.org/sdr/USAA2012070200033), Jul 1, 2012: DOOR FRAME. CRACKED. Q4 CHECK - FORWARD SERVICE DOOR FRAME CRACKED FROM LOWER HOLE AT BS 328. REMOVED AND REPLACED DOOR.
- [SDR USAA2012070200032](https://openairdocs.org/sdr/USAA2012070200032), Jun 30, 2012: SKIN. DELAMINATED. Q4 CHECK - NR 2 SLAT TRAILING EDGE WEDGE UPPER SKIN DELAMINATED AT INBOARD END (7 IN X 5 IN AREA). REPAIRED SKIN IAW B737 SRM 51-70-10.
- [SDR USAA2012070200031](https://openairdocs.org/sdr/USAA2012070200031), Jun 30, 2012: SKIN. DELAMINATED. Q4 CHECK - NR 3 SLAT TRAILING EDGE UPPER SKIN DELAMINATED AT INBOARD END (3 IN X 3 IN AREA). REPAIRED SKIN IAW B737 SRM 51-70-10.
- [SDR USAA2012070200030](https://openairdocs.org/sdr/USAA2012070200030), Jun 30, 2012: FRAME. CORRODED. Q4 CHECK - RUDDER RIGHT SIDE CONDUCTIVE FRAME CORRODED AT RUDDER STA 234.89. REMOVED FRAME, FABRICATED AND INSTALLED NEW FRAME IAW BOEING DRAWING 65C31496 AND E
- [SDR USAA2012070200029](https://openairdocs.org/sdr/USAA2012070200029), Jun 30, 2012: STRINGER CLIP. CRACKED. Q4 CHECK - STRINGER TIE CLIP CRACKED AT BS F294, S23L. REMOVED CLIP, FABRICATED AND INSTALLED NEW CLIP IAW BOEING 737 SRM 51-20-01 AND BOEING DRAWING BAC 69-372
- [SDR USAA2012061900010](https://openairdocs.org/sdr/USAA2012061900010), Jun 17, 2012: ANGLE. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON LEFT AFT CARGO FLOOR TRACK TRANSITION ANGLE BETWEEN BS 797 TO BS 840, LBL 21.8. REPLACED TRANSITION ANGLE BETWEEN BS
- [SDR USAA2012061900011](https://openairdocs.org/sdr/USAA2012061900011), Jun 17, 2012: ANGLE. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON LEFT AFT CARGO TRANSITION ANGLE AT BS 727D+10 INCHES, LBL 21. REPLACED LEFT AFT CARGO TRANSITION ANGLE AT BS 727D+10
- [SDR USAA2012070200028](https://openairdocs.org/sdr/USAA2012070200028), Jun 16, 2012: SUPPORT BEAM. CRACKED. Q4 CHECK - NOSE LANDING GEAR WHEEL WELL SUPPORT BEAM WEB CRACKED AT BS 237, BL 0, WL 188. REPAIRED WEB IAW B737 SRM 51-70-13 AND EA 104046.
- [SDR USAA2012061900013](https://openairdocs.org/sdr/USAA2012061900013), Jun 15, 2012: SKIN. DELAMINATED. Q4 CHECK - DELAMINATION ON UPPER SURFACE NR 4 SLAT TRAILING EDGE WEDGE 2 INCHES OUTBOARD OF INBOARD END. REPAIRED NR 4 SLAT TRAILING EDGE WEDGE IAW B737-400 SRM
- [SDR USAA2012061900012](https://openairdocs.org/sdr/USAA2012061900012), Jun 15, 2012: SKIN. CORRODED. Q4 CHECK - DELAMINATION ON UPPER AND LOWER TRAILING EDGE SURFACES, OUTBOUND AFT CORNER OF NR 2 SLAT TRAILING EDGE WEDGE. REPAIRED NR 2 SLAT TRAILING EDGE WEDGE 
- [SDR USAA2012061500005](https://openairdocs.org/sdr/USAA2012061500005), Jun 14, 2012: WEB. CRACKED. Q4 CHECK - CRACKED FLOOR WEB AT BS 297, RBL 58. REPAIRED FLOOR WEB AT BS 297, RBL 58 IAW EA 104000.
- [SDR USAA2012061500008](https://openairdocs.org/sdr/USAA2012061500008), Jun 13, 2012: STRAP. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON FLOOR STRAP AT BS 727F + 6 INCHES, BETWEEN LBL 20 TO RBL 20. REPAIRED FLOOR STRAP AT BS 727F + 6 INCHES, BETWEEN LBL
- [SDR USAA2012061400010](https://openairdocs.org/sdr/USAA2012061400010), Jun 13, 2012: ATTACH ANGLE. CORRODED. Q4 CHECK - LEVEL 2 INTERGRANULAR CORROSION ON TRANSITION ANGLE BETWEEN BS 727E + 6 INCHES TO BS 767, RBL 21. REPLACED TRANSITION ANGLE BETWEEN BS 727E + 6 INCHE
- [SDR USAA2012061400009](https://openairdocs.org/sdr/USAA2012061400009), Jun 6, 2012: TEE FITTING. CORRODED. Q4 CHECK - LEVEL 2 INTERGRANULAR CORROSION ON TEE CHORD AT BS 203.8, BL 0. REPAIRED TEE CHORD AT BS 203.8, BL 0 IAW EA 10411.
- [SDR USAA2012061100007](https://openairdocs.org/sdr/USAA2012061100007), Jun 6, 2012: TIE CLIP. CRACKED. Q4 CHECK - CRACK ON TIE CLIP AT BS 277, S15R. REPAIRED TIE CLIP AT BS 277, S15R IAW B737-400 SRM 51-40-02.
- [SDR USAA2012062500010](https://openairdocs.org/sdr/USAA2012062500010), Jun 3, 2012: FLOORBEAM. CORRODED. Q4 CHECK - FLOORBEAM WEB HAS MULTIPLE SCREW HOLES WITH CORROSION AROUND THEM (7" X 0.75" X .020" AREA) AT BS 630, LBL 40.875. REPAIRED IAW EA 103997.
- [SDR USAA2012061900015](https://openairdocs.org/sdr/USAA2012061900015), Jun 3, 2012: STIFFENER. CORRODED. Q4 CHECK - CORROSION ON STIFFENER AT BS 1120, S15R. REPLACED STIFFENER AT BS 1120, S15R IAW B737-400 DRAWING 65-46579.
- [SDR USAA2012061900014](https://openairdocs.org/sdr/USAA2012061900014), Jun 3, 2012: STRINGER. CORRODED. Q4 CHECK - CORROSION ON STRINGER AT BS 1120, S14R. REPLACED STRINGER AT BS 1120, S14R IAW B737-400 DRAWING 65-46579.
- [SDR USAA2012061500007](https://openairdocs.org/sdr/USAA2012061500007), Jun 3, 2012: BEAM. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION ON LOWER BEAM WEB AT BS 630, LBL 40.875. REPAIRED LOWER BEAM WEB AT BS 630, LBL 40.875 IAW EA 103995.
- [SDR USAA2012061500003](https://openairdocs.org/sdr/USAA2012061500003), Jun 2, 2012: TIE CLIP. CRACKED. Q4 CHECK - CRACK ON STRINGER TIE CLIP AT BS 380, S22L. REPAIRED STRINGER TIE CLIP AT BS 380, S22L IAW B737-400 SRM 51-10-02.
- [SDR USAA2012061100010](https://openairdocs.org/sdr/USAA2012061100010), Jun 2, 2012: BEAM. CRACKED. Q4 CHECK - CRACK ON STUB BEAM AT BS 578, LBL 64. REPAIRED STUB BEAM AT BS 578, LBL 64 IAW B737-400 SRM 51-40-02, AND DRAWING 65C52755.
- [SDR USAA2012061100009](https://openairdocs.org/sdr/USAA2012061100009), Jun 2, 2012: WEDGE. DELAMINATED. Q4 CHECK - DELAMINATION ON LEFT WING INBOARD AFT FLAP TRAILING EDGE WEDGE 29 INCHES FROM OUTBOARD END ON THE UPPER SURFACE. REPAIRED AFT FLAP TRAILING EDGE WEDG
- [SDR USAA2012061400011](https://openairdocs.org/sdr/USAA2012061400011), Jun 1, 2012: FRAME. CORRODED. Q4 CHECK - LEVEL 2 CORROSION ON APU INLET OPENING FRAME AT BS 1112, BETWEEN S5R TO S12R. REPAIRED APU INLET OPENING FRAME AT BS 1112, BETWEEN S5R TO S12R IAW EA
- [SDR USAA2012070200027](https://openairdocs.org/sdr/USAA2012070200027), May 31, 2012: SKIN. CORRODED. Q4 CHECK - RIGHT OUTBOARD TRAILING EDGE MID-FLAP HAS MULTIPLE (3) AREAS OF CORROSION; 1"X1"X.002"; 1.5"X1"X.005"; 1.5"X1.5"X.006" ON UPPER LEADING EDGE SURFACE 
- [SDR USAA2012061500004](https://openairdocs.org/sdr/USAA2012061500004), May 31, 2012: STIFFENER. CORRODED. 2S CHECK - LEVEL 2 EXFOLIATION CORROSION ON STIFFENER AT BS 1126, BETWEEN S5R TO S12R. REPAIRED STIFFENER AT BS 1126, BETWEEN S5R TO S12R IAW BOEING DRAWING 65-
- [SDR USAA2012061100006](https://openairdocs.org/sdr/USAA2012061100006), May 30, 2012: WEDGE. DELAMINATED. Q4 CHECK - DELAMINATION ON RIGHT WING NR 4 SLAT TRAILING EDGE WEDGE. REPAIRED RIGHT WING NR 4 SLAT TRAILING EDGE WEDGE IAW B737-400 SRM51-70-10 REPAIR 4 AND TYP
- [SDR USAA2012061100008](https://openairdocs.org/sdr/USAA2012061100008), May 29, 2012: FLOORBEAM. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON FLOORBEAM T-CAP AT BS 328, BETWEEN LBL 30 TO RBL 64. REPAIRED FLOORBEAM T-CAP AT BS 328, BETWEEN LBL 30 TO RBL 64 IA
- [SDR USAA2012061100004](https://openairdocs.org/sdr/USAA2012061100004), May 29, 2012: ANGLE. CORRODED. Q4 CHECK - LEVEL 2 EXFOLIATION CORROSION ON Z-ANGLE BETWEEN BS 947 TO BS 986.5, LBL 50. REPLACED Z-ANGLE IAW B737-400 SRM 51-40-02 AND DRAWING 65-52878.
- [SDR USAA2012052500012](https://openairdocs.org/sdr/USAA2012052500012), May 22, 2012: FRAME. CRACKED. Q4 CHECK - CRACK ON FUSELAGE FRAME AT BS 787, S9R. REPAIRED FUSELAGE FRAME AT BS 787, S9R IAW TYPICAL REPAIR TR737-5310-10-287.
- [SDR USAA2012042300012](https://openairdocs.org/sdr/USAA2012042300012), Apr 22, 2012: PLACARD. MISSING. MAINTENANCE REPORTED ROW 12 EXIT PLACARD MISSING. MAINTENANCE INSTALLED PLACARD. OK FOR SERVICE.
- [SDR USAA2012022100002](https://openairdocs.org/sdr/USAA2012022100002), Feb 21, 2012: SKIN. CRACKED. RON CHECK, CRACK IN FUSELAGE SKIN AT BS 947, S25R. REPAIRED SKIN IAW SRM 53-00-01-2R-31 DETAIL XIX.
- [SDR USAA2012020600027](https://openairdocs.org/sdr/USAA2012020600027), Feb 3, 2012: CONTROL MODULE. FAULTY. AT CRUISE, ON AUTO PILOT, CREW REPORTED THE LEFT FLIGHT CONTROL SURFACE DEPLOYED. AIRCRAFT WAS DIFFICULT TO CONTROL, CREW DECLARED AN EMERGENCY AND DIVERTED TO 
- [SDR USAA2011120200010](https://openairdocs.org/sdr/USAA2011120200010), Dec 1, 2011: SIGN. DETACHED. EMERGENCY SIGN OVER LEFT WING EXITS FELL OFF. RE-SECURED SIGN.
- [SDR USAA2011082600011](https://openairdocs.org/sdr/USAA2011082600011), Aug 24, 2011: SKIN. CRACKED. UFRSI CHECK - CRACK IN FUSELAGE SKIN AT L1 DOOR LOWER HINGE CUTOUT AT BS 303, S15L. REPAIRED FUSELAGE SKIN AT L1 DOOR LOWER HINGE CUTOUT IAW B737 SRM 53-10-01 F
- [SDR USAA2011082600010](https://openairdocs.org/sdr/USAA2011082600010), Aug 24, 2011: SKIN. CRACKED. UFRSI CHECK - CRACK IN FUSELAGE SKIN AT L1 DOOR UPPER HINGE CUTOUT AT BS 303, S10L. REPAIRED FUSELAGE SKIN AT L1 DOOR UPPER HINGE CUTOUT IAW EA 130664.
- [SDR USAA2011082600016](https://openairdocs.org/sdr/USAA2011082600016), Aug 21, 2011: TIE CLIP. CRACKED. UFRSI CHECK - CRACK IN TIE CLIP AT BS 294.5, S11L. REPLACED TIE CLIP AT BS 294.5, S11L IAW B737 SRM 51-40-02.
- [SDR USAA2011082600014](https://openairdocs.org/sdr/USAA2011082600014), Aug 20, 2011: INTERCOSTAL. CRACKED. UFRSI CHECK - CRACK IN AUXILIARY INTERCOSTAL (ATTACH ANGLE) AT BS 301.5, S10L. REPLACED AUXILIARY INTERCOSTAL AT AT BS 301.5, S10L IAW B737 SRM 51-40-02.
- [SDR USAA2011082600015](https://openairdocs.org/sdr/USAA2011082600015), Aug 13, 2011: INTERCOSTAL. CRACKED. UFRSI CHECK - CRACK IN INTERCOSTAL BETWEEN BS 294.5 TO BS 303.9, S8L. REPLACED INTERCOSTAL BETWEEN BS 294.5 TO BS 303.9, S8L IAW B737 SRM 51-40-02.
- [SDR USAA2011082600013](https://openairdocs.org/sdr/USAA2011082600013), Aug 10, 2011: FRAME. CRACKED. UFRSI CHECK - CRACK IN FUSELAGE FRAME AT BS 500G BETWEEN S13L TO S14L. REPAIRED FUSELAGE FRAME AT BS 500G BETWEEN S13L TO S14L IAW TYPICAL REPAIR TR737-5310-10-
- [SDR USAA2011082600012](https://openairdocs.org/sdr/USAA2011082600012), Aug 10, 2011: FRAME. CRACKED. UFRSI CHECK - CRACK IN FUSELAGE FRAME AT BS 500E BETWEEN S20L TO S21L. REPAIRED FUSELAGE FRAME AT BS 500E BETWEEN S20L TO S21L IAW B737 SRM 53-00-07 REPAIR 13.
- [SDR USAA2011082600009](https://openairdocs.org/sdr/USAA2011082600009), Aug 10, 2011: SKIN. CRACKED. UFRSI CHECK - 2 CRACKS IN FUSELAGE SKIN AT BS 727E+8 APPROX 1.5 INCHES & AT BS 727D+18 INCHES APPROX 2 INCHES IN LENGTH AT S24R. REPAIRED FUSELAGE SKIN AT BS 72

All 179: https://openairdocs.org/deregistered/N424US-2022-02-11/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 19960320009809I](https://openairdocs.org/incident/19960320009809I), Mar 20, 1996: Boeing 737401 (N424US), Philadelphia, PA, Minor damage. Narrative: on 03-20-96 usaa flt 164 was reported to have made two passes before safely landing on runway 27L (due to no right landing gear indication or…

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