# N420US: 1989 Boeing 737-401, registration cancelled 2023-06-27

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 27, 2023
- Status when cancelled: Valid registration
- 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: 23987
- Year built: 1989
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 5, 1989
- Certificate issued: August 9, 2022
- Last registry action: April 25, 2023
- Mode S code: A4FD72
- Owner when cancelled: [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE)
- Location: [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake)
- Owner type: Corporation
- Owner's area on the map: 40.8386° N, 111.9179° W: Placed by OpenAirDocs at the center of ZIP code 84054, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N420US
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=420US
- Page: https://openairdocs.org/deregistered/N420US-2023-06-27

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

## Service difficulty reports (206, newest 50)

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

- [SDR I5EA2021060300001](https://openairdocs.org/sdr/I5EA2021060300001), Jun 3, 2021: BATTERY PACK. NO TEST. EMERGENCY EXIT LIGHTS OUT ROW 12. REMOVED AND REPLACED BATTERY ASSY PACK IAW AMM B737-400 33-51-51, OPS CHECK GOOD.
- [SDR I5EA2021041700005](https://openairdocs.org/sdr/I5EA2021041700005), Apr 17, 2021: POWER SUPPLY. NO TEST. EMERGENCY LIGHTS ON L/H SIDE ISLE FROM ROW 20-24 INOP. PERFORMED T/S AND FOUND BAD POWER SUPPLY (M1197). REMOVED AND REPLACED THE POWER SUPPLY M1197 @STA 960L, 
- [SDR I5EA201910231001](https://openairdocs.org/sdr/I5EA201910231001), Oct 21, 2019: INDICATOR. MALFUNCTIONED. #1 ENGINE EGT SURGE TO 1300'C MULTIPLE TIMES (3 TIMES LESS THAN 1 MINUTE SECOND EACH)
- [SDR I5EA2019030100000](https://openairdocs.org/sdr/I5EA2019030100000), Mar 4, 2019: BATTERY. DISCHARGED. DISCREPANCY: PASSENGER CABIN - DURING EMERGENCY LIGHT TEST, BATTERY ASSY DID NOT SUPPLY ENOUGH POWER. CORRECTIVE ACTION: REMOVED AND REPLACED 1 EACH BATTERY FOR
- [SDR I5EA2018090600000](https://openairdocs.org/sdr/I5EA2018090600000), Sep 4, 2018: TORQUE LINK. BROKEN. DURING LANDING WHEN REVERSE WAS APPLIED THE AIRCRAFT STARTED SHAKING HARD. REMOVED AND REPLACED LT MLG UPPER TORSION LINK PIN, 69-72023-1, AND LOWER, P/N 65-676
- [SDR I5EA212N20180301](https://openairdocs.org/sdr/I5EA212N20180301), Mar 22, 2018: SMOKE DETECTOR. FAILED. AFTER TAKEOFF, CLIMBING THROUGH FL060, AFT CARGO FIRE WARNING ILLUMINATED WITH MASTER WARNING LIGHT. CHECKLIST COMPLIED WITH, BOTTLE DISCHARGED, LANDING ACCOMPL
- [SDR I5EA2018022001](https://openairdocs.org/sdr/I5EA2018022001), Feb 11, 2018: FIRE WARNING. FALSE ACTIVATION. CLIMBING THROUGH FL 230, THE AFT CARGO FIRE ALARM WENT OFF, COMPLETED THE CARGO FIRE PROCEDURE IAW QRH, PEFORMED AIR TURNBACK TO DEPARTURE. PERFORMED CARGO FIRE
- [SDR I5EA2018021500001](https://openairdocs.org/sdr/I5EA2018021500001), Feb 11, 2018: FIRE WARNING. ACTIVATED. CLIMBING THROUGH FL230, AFT CARGO FIRE ALARM WENT OFF, COMPLETED CARGO FIRE PROCEDURE PER QRH, RETURNED TO DEPARTURE AIRPORT.
- [SDR I5EA2017102503](https://openairdocs.org/sdr/I5EA2017102503), Oct 25, 2017: BATTERY PACK. DISCHARGED. LT ROW 6 THROUGH 9 EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY PACK AT STA. 634L, OPERATION TEST GOOD IAW AMM 33-51-51.
- [SDR I5EA2017070500001](https://openairdocs.org/sdr/I5EA2017070500001), Aug 2, 2017: BATTERY. DISCHARGED. EMERGENCY LIGHT WOULD NOT TEST AT ROWS 20 THRU 24. REMOVED AND REPLACED BATTERY AND SYSTEM CHECKS GOOD.
- [SDR I5EA2016033000035](https://openairdocs.org/sdr/I5EA2016033000035), Dec 20, 2015: DISPLAY. BURNED. DURING CLIMBOUT, RADAR WAS MAKING POPING NOISE AND CRACKLING NOISES. SMELLED ELECTRICAL, PULLED BOTH RADAR CB'S ON P6 PANEL. REMOVED WEATHER RADAR INDICATING US
- [SDR I5EA2016040100001](https://openairdocs.org/sdr/I5EA2016040100001), Nov 4, 2015: ADC. MALFUNCTIONED. AT 110 KNOTS CAPTAIN SIDE MACH KNOTS AND ALTIMETER INDICATORS FLAGGED. REFERENCED AND ADHERED TO QRH. BRAKE COOLING SCHEDULE FOR 107K LBS AT 110 KIAS. PERFORMED
- [SDR USAA2013092300022](https://openairdocs.org/sdr/USAA2013092300022), Sep 20, 2013: SKIN. CRACKED. C3 CHECK, FOUND CRACK ON FUSELAGE SKIN AT BS 951, WL 251.77. REPAIRED SKIN IAW SRM 53-60-01-2R-5, FIG 201.
- [SDR USAA2013062500005](https://openairdocs.org/sdr/USAA2013062500005), Jun 24, 2013: WINDOW. CRACKED. CRACK OBSERVED BY CREW ON OUTSIDE PANE OF PORTHOLE WINDOW IN FWD SERVICE DOOR. PRESSURIZATION IS NORMAL AT FL330. MX REMOVED DOOR MOUNTED WINDOW ON FWD SERVICE 
- [SDR USAA2013062400015](https://openairdocs.org/sdr/USAA2013062400015), Jun 23, 2013: LENS. MISSING. MX REPORTED SEAT EMERGENCY EXIT LIGHT 4L, 8L, AND 11L LENS MISSING. MX INSTALLED SEAT EMERGENCY EXIT LIGHT LENS AT 4L, 8L AND 11L.
- [SDR USAA2013040400002](https://openairdocs.org/sdr/USAA2013040400002), Apr 3, 2013: SLIDING WINDOW. MALFUNCTIONED. CAPTAIN'S NR 2 WINDOW HAS DELAMINATION IN UPPER RIGHT CORNER AND APPEARS TO HAVE HAD ARCING IN THE BOTTOM LEFT CORNER. MAINTENANCE REMOVED AND REPLACED CAPTAIN'
- [SDR USAA2013030400018](https://openairdocs.org/sdr/USAA2013030400018), Mar 3, 2013: LIGHT. UNSECURE. CREW REPORTED THE SEAT MOUNTED EMERGENCY LIGHT AT ROW 5 NEEDS TO BE RE-SECURED. MAINTENANCE SECURED EMERGENCY LIGHT AT ROW 5. OPS CHECK GOOD.
- [SDR USAA2013010900006](https://openairdocs.org/sdr/USAA2013010900006), Jan 9, 2013: FACEPLATE. MISSING. MAINTENANCE REPORTED SEAT 12C EMERGENCY EXIT FACE PLATE MISSING AT FLOOR LEVEL. MAINTENANCE REPLACED 12C EMERGENCY EXIT SIGN - "EXITS" AT FLOOR LEVEL.
- [SDR USAA2013010200016](https://openairdocs.org/sdr/USAA2013010200016), Jan 1, 2013: SNUBBER. INOPERATIVE. MAINTENANCE REPORTED THE MAIN ENTRY DOOR SNUBBER INOPERATIVE. MAINTENANCE REMOVED AND REPLACED SNUBBER ASSEMBLY PER AMM 52-11-71. OPS NORMAL.
- [SDR USAA2012121700010](https://openairdocs.org/sdr/USAA2012121700010), Dec 15, 2012: COVER. MISSING. CREW REPORTED SEAT 11C MISSING EMERGENCY LIGHT COVER. MAINTENANCE REPLACED COVER.
- [SDR USAA2012111400022](https://openairdocs.org/sdr/USAA2012111400022), Nov 14, 2012: WIRE. BROKEN. MAINTENANCE REPORTED THE EMERGENCY EXIT LIGHTS INOP AT SEAT ROWS 6 THRU 9. MAINTENANCE REPAIRED WIRING AT ROW 9. OPS CHECKS GOOD.
- [SDR USAA2012111400021](https://openairdocs.org/sdr/USAA2012111400021), Nov 14, 2012: PLACARD. MISSING. MAINTENANCE REPORTED THE PLACARD MISSING AT EMERGENCY EXIT SEAT SIGN 12ABC. MAINTENANCE INSTALLED REQUIRED PLACARD. CHECKS GOOD.
- [SDR USAA2012110900013](https://openairdocs.org/sdr/USAA2012110900013), Nov 8, 2012: SKIN PANEL. CRACKED. TRIPLE GEAR CHANGE. FUSELAGE SKIN CRACKED AT BS 540 AND S10L. REPAIRED SKIN IAW EA 203643.
- [SDR USAA2012110900012](https://openairdocs.org/sdr/USAA2012110900012), Nov 8, 2012: SKIN PANEL. CRACKED. TRIPLE GEAR CHANGE. FUSELAGE SKIN CRACKED AT BS 907 AND S4L. REPAIRED SKIN IAW EA 203644.
- [SDR USAA2012110800006](https://openairdocs.org/sdr/USAA2012110800006), Nov 8, 2012: SEAT TRACK. CRACKED. TRIPLE GEAR CHANGE. LEFT INBOARD SEAT TRACK WEB CRACKED JUST AFT OF FLOORBEAM 727B. REPAIRED WEB IAW B737-400 SRM 53-00-52-2R-4.
- [SDR USAA2012110800005](https://openairdocs.org/sdr/USAA2012110800005), Nov 8, 2012: SEAT TRACK. CRACKED. TRIPLE GEAR CHANGE. RIGHT INBOARD SEAT TRACK WEB CRACKED JUST AFT OF FLOORBEAM 727B. REPAIRED WEB IAW B737-400 SRM 53-00-52-2R-4.
- [SDR USAA2012110500006](https://openairdocs.org/sdr/USAA2012110500006), Nov 3, 2012: SEAT TRACK. CRACKED. GEAR CHANGE - CRACK IN SEAT TRACK FLANGE AT BS 727B, WL 208.1, RBL 44. REPAIRED SEAT TRACK FLANGE AT BS 727B, WL 208.1, RBL 44 IAW B737 SRM 53-00-52-2R-4.
- [SDR USAA2012092600001](https://openairdocs.org/sdr/USAA2012092600001), Sep 25, 2012: COVER. MISSING. CREW REPORTED THE EXIT ROW LIGHT COVER MISSING ON EMERGENCY EXIT LIGHT. MAINTENANCE REPLACED EMERGENCY EXIT LIGHT COVER. AIRCRAFT OK FOR SERVICE.
- [SDR USAA2012070300002](https://openairdocs.org/sdr/USAA2012070300002), Jul 2, 2012: SKIN. CRACKED. C2 CHECK - FUSELAGE SKIN CRACKED AT BS 727E + 4 IN, S23R. REPAIRED SKIN IAW B737 SRM 53-00-01-2R-31 DETAIL XL.
- [SDR USAA2012070600004](https://openairdocs.org/sdr/USAA2012070600004), Jul 1, 2012: SKIN. CRACKED. C2 CHECK - FUSELAGE SKIN CRACKED AT BS 727G + 4 IN, S24L. REPAIRED SKIN IAW EA 104088.
- [SDR USAA2012062600026](https://openairdocs.org/sdr/USAA2012062600026), Jun 25, 2012: MEGAPHONE. INOPERATIVE. MAINTENANCE REPORTED THE AFT MEGAPHONE INOPERATIVE. MAINTENANCE REPLACED THE AFT MEGAPHONE PER AMM 25-64-04.
- [SDR USAA2012061300001](https://openairdocs.org/sdr/USAA2012061300001), Jun 12, 2012: PLACARD. MISSING. MAINTENANCE REPORTED THE EXIT PLACARD AT ROW 12L MISSING. MAINTENANCE INSTALLED PLACARD. AIRCRAFT OK FOR SERVICE.
- [SDR USAA2012060500001](https://openairdocs.org/sdr/USAA2012060500001), Jun 1, 2012: HOOK. OUT OF ADJUST. CREW REPORTED THE FORWARD ENTRY DOOR GIRT BAR ON LEFT SIDE OF SLIDE PACK WILL NOT HOLD THE BAR. MAINTENANCE ADJUSTED THE GIRT BAR STOWAGE HOOK. OPS CHECK GOOD.
- [SDR USAA2012053000005](https://openairdocs.org/sdr/USAA2012053000005), May 29, 2012: SIGN. UNSECURE. EXIT SIGN ON SEAT 11F A/C LEFT CAME OFF. SECURED EXIT SIGN SEAT 11F, OPS CHECK OK.
- [SDR USAA2012041900002](https://openairdocs.org/sdr/USAA2012041900002), Apr 17, 2012: BEAM. CRACKED. VERTICAL WEB AT RBL 17 HAS 2 CRACKS IN BEAM WEB BELOW WL 234 AT BS 179.25. CUT OUT DOUBLER AND REPLACED DOUBLER AT BS179.25, RBL17 IAW SRM 53-10-08-2R
- [SDR USAA2011120500017](https://openairdocs.org/sdr/USAA2011120500017), Dec 2, 2011: HANDLE. MISSING. MAINTENANCE REPORTED THE EMERGENCY EXIT WINDOW HANDLE MISSING - NR 2 RIGHT SIDE. MAINTENANCE INSTALLED NEW EMERGENCY EXIT WINDOW HANDLE ON NR 2 RIGHT SIDE. OPS 
- [SDR USAA2011110700010](https://openairdocs.org/sdr/USAA2011110700010), Nov 5, 2011: PLACARD. MISSING. MAINTENANCE REPORTED THE EXIT PLACARD AT ROW 11 MISSING. MAINTENANCE INSTALLED PLACARD. OK FOR SERVICE.
- [SDR USAA2011081500035](https://openairdocs.org/sdr/USAA2011081500035), Aug 13, 2011: LENS. BROKEN. CREW REPORTED ROW 11C EMERGENCY EXIT SIGN BROKEN. MAINTENANCE REPLACED EMERGENCY LIGHT LENS. AIRCRAFT OK FOR SERVICE.
- [SDR USAA2011080800013](https://openairdocs.org/sdr/USAA2011080800013), Aug 6, 2011: SPLICE. DAMAGED. EMERGENCY LIGHTS FOR THE LAST TWO SEAT ROWS WERE FOUND INOPERATIVE. MAINTENANCE REPAIRED BAD SPLICE. ALSO, REPLACED THE BATTERY PACK. OPS CHECK GOOD.
- [SDR USAA2011070600019](https://openairdocs.org/sdr/USAA2011070600019), Jun 29, 2011: FLAP. WORN. Q6 - LOOSE BUSHINGS INBOARD END ON CARRIAGE ATTACH POINT TRAILING EDGE OF LEFT OUTBOARD FOREFLAP. REPLACED LEFT OUTBOARD FOREFLAP IAW JOB CARD 03C30727030.
- [SDR USAA2011070100032](https://openairdocs.org/sdr/USAA2011070100032), Jun 22, 2011: SUPPORT TUBE. CORRODED. CLT - Q6 CHECK - CORROSION ON RIGHT WING INBOARD FLAP OUTBOARD CARRIAGE SUPPORT TUBE. REPLACED RIGHT WING INBOARD FLAP OUTBOARD CARRIAGE SUPPORT TUBE IAW TASK C
- [SDR USAA2011062300001](https://openairdocs.org/sdr/USAA2011062300001), Jun 22, 2011: SLIDE. UNSERVICEABLE. BFM - C3 - AFT ENTRY DOOR EVACUATION SLIDE NEEDS REPLACED DUE TO INFLATION TUBE KINKED. REPLACED AFT ENTRY DOOR EVACUATION SLIDE IAW JOB CARD 03C11052007.
- [SDR USAA2011070600017](https://openairdocs.org/sdr/USAA2011070600017), Jun 21, 2011: SKIN. CRACKED. Q6 CHECK - CRACK ON NR 2 PYLON SKIN AT PANEL 5828R, BETWEEN NAC STA 220 TO NAC STA 226, RBL 12. REPAIRED NR 2 PYLON SKIN AT PANEL 5828R, BETWEEN NAC STA 220 TO 
- [SDR USAA2011070100028](https://openairdocs.org/sdr/USAA2011070100028), Jun 18, 2011: SKIN. CRACKED. CLT - Q6 CHECK - TWO CRACKS IN UPPER HINGE CUTOUT OF FORWARD ENTRY DOOR SKIN AT BS 312, STR 15L. REPAIRED UPPER HINGE CUTOUT OF FORWARD ENTRY DOOR SKIN BS 312, 
- [SDR USAA2011070600021](https://openairdocs.org/sdr/USAA2011070600021), Jun 16, 2011: SKIN. CRACKED. Q6 - CRACK ON FUSELAGE SKIN AT BS 303.9, WL 259.88. REPAIRED FUSELAGE SKIN AT BS 303.9, WL 259.88 IAW EA EA 1030022.
- [SDR USAA2011070100031](https://openairdocs.org/sdr/USAA2011070100031), Jun 16, 2011: FRAME. CRACKED. CLT - Q6 - 3/16 INCH CRACK ON FRAME AT WIRE PENETRATION HOLE, BS 500B, BETWEEN STR 20L TO STR 21L. REPAIRED FRAME AT WIRE PENETRATION HOLE, BS 500B, BETWEEN STR
- [SDR USAA2011062900015](https://openairdocs.org/sdr/USAA2011062900015), Jun 15, 2011: FRAME. CRACKED. CLT - Q6 CHECK - CRACK ON FRAME WEB AT BS 303.9, STR 16L. REPLACED FRAME WEB AT BS 303.9, STR 16L IAW EO 5311-01025.
- [SDR USAA2011062900017](https://openairdocs.org/sdr/USAA2011062900017), Jun 15, 2011: TIE CLIP. CRACKED. CLT - Q6 CHECK - CRACK ON TIE CLIP AT BS 727E, STR 23R. REPLACED TIE CLIP AT BS 727E, STR 23R IAW B737-400 SRM 51-40-02.
- [SDR USAA2011062900016](https://openairdocs.org/sdr/USAA2011062900016), Jun 15, 2011: DOOR FRAME. CRACKED. CLT - Q6 CHECK - CRACK ON FORWARD ENTRY DOOR AFT FRAME AT NR 6 STOP PIN. REPAIRED FORWARD ENTRY DOOR AFT FRAME AT NR 6 STOP PIN IAW EA 103086.
- [SDR USAA2011070600020](https://openairdocs.org/sdr/USAA2011070600020), Jun 14, 2011: SKIN. CRACKED. Q6 - CRACK ON FORWARD UPPER CORNER OF PYLON ACCESS (5724L) CUTOUT. REPAIRED FORWARD UPPER CORNER OF PYLON ACCESS (5724L) CUTOUT IAW EA 103051.

All 206: https://openairdocs.org/deregistered/N420US-2023-06-27/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 20180211012029I](https://openairdocs.org/incident/20180211012029I), Feb 11, 2018: Boeing 737-401 (N420US), Miami, FL, Minor damage. Miami, FL (mia): SWQ6431, B734, mia-svmc, returned to mia with a cargo fire warning light illuminated. Aircraft blew a tire on the right main gear on landing .…

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