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Aircraft record

N478WN2004 Boeing 737-7H4

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply289 service difficulty reports

Registration
Valid
expires May 31, 2028
Based in
Dallas, TX
owner city / state
Engine
CFM56 SERIES · 2200 hp
Cfm Intl.
Owners
1
since 2004
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
289
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Southwest Airlines Co
Owner type
Corporation
City, state
Dallas, TX
Certificate issued
Sep 21, 2004
Expires
May 31, 2028
Airworthiness
Standard · Transport
Airworthiness date
Aug 14, 2004

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Boeing
Model
737-7H4
Year
2004
Serial number
33989
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
143
Engines
2
Max takeoff weight
20,000 and over lb
Type certificate data sheet
A16WE
Mode S code
A5E0D3

Engine

Make and model
Cfm Intl. Cfm56 Series
Type
Turbo-fan
Power
2200 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2004 – nowSouthwest Airlines CoDallas, TX · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (21)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2019-14-02Hydraulic powerAug 27, 2019Airframe (737-7H4)
2002-20-07 R1Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-7H4)
2002-20-07Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-7H4)
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (737-7H4)Serial numbers per Boeing Service Bulletins 737-25-1371 Rev 2, 737-25-1407, 747-25-3196 Rev 1, 777-25-0111 Rev 1
2001-10-14Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJun 8, 2001Airframe (737-7H4)Serial numbers per Boeing Special Attention Service Bulletins 737-35-1076, 737-35-1077, 747-35-2111, 757-35-0021, 757-35-0022, 767-35-0043, 767-35-0044, 777-35-0008, all dated March 1, 2001. Only with: Equipped with chemical oxygen generators.
Show all 21 ADs
ADSubjectEffectiveApplies to
2001-08-24Boeing Model 737 Series AirplanesMay 10, 2001Airframe (737-7H4)
2000-22-02 R1Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-7H4)
2000-22-02Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-7H4)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (737-7H4)Certain serial numbers: 737 1–2984; 757 1–798; 767 1–682; 777 1–083. Only with: Ranges are line numbers; equipped with Puritan-Bennett passenger and flight attendant oxygen masks as listed in Boeing Service Bulletins 737-35-1049, 757-35-0014, 767-35-0033, or 777-35-0005.
99-11-05Boeing Model 737 Series AirplanesJun 28, 1999Airframe (737-7H4)
99-22-16Boeing Model 737 Series AirplanesDec 7, 1999Airframe (737-7H4)Serial numbers per Boeing Service Bulletin 737-52-1128, dated April 22, 1999, or Boeing Service Bulletin 737-52-1137, dated May 13, 1999
98-13-12 R1Boeing Model 737, 747, 757, 767, and 777 Series AirplanesDec 28, 1998Airframe (737-7H4)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368 Revision 2, 757-27A0128, 767-27A0156, 777-27A0029 Revision 1
98-22-10Boeing Model 737 Series AirplanesNov 12, 1998Airframe (737-7H4)Serial numbers per Boeing Service Bulletin 737-53A1108, Revision 5, dated October 26, 1989
98-18-20Boeing Model 727 and Model 737 Series Airplanes Equipped with J.C. Carter Company Fuel…Oct 21, 1998Airframe (737-7H4)Only with: Equipped with J.C. Carter Company fuel valve actuators P/N 40574-2 (Kearfott Models 3715-7 and -8) or 40574-5 (Kearfott Model 3715-9).
98-13-12Boeing Model 737, 747, 757, 767, and 777 Series AirplanesJul 6, 1998Airframe (737-7H4)Serial numbers per Boeing Alert Service Bulletins 737-27A1212, 747-27A2368, 757-27A0128, 767-27A0156, and 777-27A0029, dated March 26, 1998
98-03-10Boeing Model 737, 747, 757, and 767 Series AirplanesFeb 19, 1998Airframe (737-7H4)Certain serial numbers: 737 1–2836; 747 1–1104; 757 1–731; 767 1–642. Only with: Equipped with non-powered IPECO pilots' seats; ranges are line position numbers.
97-22-07Boeing Model 737 Series AirplanesNov 12, 1997Airframe (737-7H4)Certain serial numbers: 737 292–2565. Only with: Limited to airplanes with line numbers 292 through 2565 inclusive.
97-18-06Boeing Model 737 Series AirplanesNov 12, 1997Airframe (737-7H4)
97-05-10Boeing Model 737 Series AirplanesMar 19, 1997Airframe (737-7H4)Only with: Having a main rudder power control unit (PCU) identified in Boeing Service Letter 737-SL-27-112-B, dated February 6, 1997.
97-04-01Boeing Model 737 Series AirplanesMar 21, 1997Airframe (737-7H4)Serial numbers per Boeing Service Bulletin 737-27-1155, dated October 26, 1989, as revised by Notices of Status Change 737-27-1155NSC1, NSC2, and NSC3
95-23-10Boeing Model 737 Series AirplanesDec 13, 1995Airframe (737-7H4)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (289)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Fuselage · baffle · crackedJun 14, 2026

    FWD CARGO BAY, APPROX BS 460 - 480, S26L-S27L BAFFLE CRACKED IN UPPER RADIUS AT NUTPLATE. REMOVED AND REPLACED THE BAFFLE IAW SRM 51-40-02, AND DWG 143A7505, REV -.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Stabilizers · rib · crackedJun 11, 2026

    UPON INSTALL OF DORSAL FIN; FOUND FORWARD MOUNT POINT(S) BRACKET CRACKED. APPLIED ALODINE IAW SRM 51-20-01. REMOVED CRACKED RIB IAW SRM 51-40-02 FABRICATED A NEW -1 RIB IAW DWG 174A1108 REV -, LOCATED AND DRILLED RIB IAW DWG 174A1008, REV B AND SRM 51-40-10. ALODINED AND PRIMED IAW SRM 51 -20-01.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · battery pack · inoperativeJun 10, 2026

    EMERGENCY BATTERY PACK M1670 LIGHTS DID NOT TURN ON. REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-06. REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-06.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Fuselage · stringer · crackedJun 8, 2026

    STRINGER 26L FOUND CRACKED AT BS 460. ACCOMPLISHED STRINGER REPAIR IAW SRM 53-00-03-2R-1.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · scuff plate · crackedMay 28, 2026

    FWD CARGO DOOR CENTER SCUFF PLATE CRACKED. REPAIRED FWD CARGO DOOR CENTER SCUFF PLATE IS CRACKED IAW SRM 53-30-15-2R-1.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · scuff plate · crackedMay 28, 2026

    FWD CARGO DOOR AFT SCUFF PLATE CRACKED. REPAIRED FWD CARGO DOOR AFT SCUFF PLATE IAW SRM 53-30-15-2R-1.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · scuff plate · crackedMay 28, 2026

    AFT CARGO DOOR FWD SCUFF PLATE CRACKED. REPAIRED AFT CARGO DOOR FWD SCUFF PLATE IAW SRM 53-30-15-2R-1.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · bracket · crackedMay 26, 2026

    RIGHT WING T/E LOCATED INBD OF DEFLECTION CONTROL RIB, OVERHANG PANEL SUPPORT BULKHEAD ATTACH BULB SEAL RETAINER CRACKED. REMOVED AND REPLACED DEFLECTOR PANEL SEAL; RETAINER; AND BRACKET IAW SRM 51-40-02, REF AIPC 57-50-00-25. REINSTALLED DEFLECTOR PANEL IAW SRM 51-40-02, REF AIPC 57-50-00-25.…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · bracket · crackedMay 26, 2026

    LEFT WING T/E LOCATED INBD OF DEFLECTION CONTROL RIB, OVERHANG PANEL SUPPORT BULKHEAD ATTACH BULB SEAL RETAINER CRACKED. REMOVED AND REPLACED SEAL REAINER AND BRACKET IAW SRM 51-40-02, REF AIPC AIPC 57-50-00-25 & REINSTALLED PANEL IAW SRM 51-40-02, REF AIPC AIPC 57-50-00-25. REMOVED AND REPLACED…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Flight controls · actuator · failedFeb 14, 2026

    SPEED BRAKES FAILED TO DEPLOY ON LANDING SPEED BRAKES FAILED TO DEPLOY ON LANDING. NH30. R & R AUTO SPEED BRAKE ACTUATOR IAW AMM 27-62-31 AND AUTO SPEED BRAKE MODULE REF. AMM 27-62-35. OPS CHECK GOOD AT THIS TIME. THIS CLEARS MEL.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Showing the 10 most recent of 289 reports.

Related aircraft

Show all 8 related aircraft
All 232 registered Boeing 737-7H4 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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