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Aircraft record

N477WN2004 Boeing 737-7H4

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply314 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
314
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Southwest Airlines Co
Owner type
Corporation
City, state
Dallas, TX
Certificate issued
Sep 9, 2004
Expires
May 31, 2028
Airworthiness
Standard · Transport
Airworthiness date
Aug 10, 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
33988
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
A5DD1C

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 (314)

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.

  • Fire protection · switch · inoperativeSep 12, 2026

    CAPTAIN MASTER FIRE WARNING LIGHT DOES NOT SILENCE BELL. OK TO CONT. PER MEL 26-10-02 SP1 AUTH# 339621. REMOVED AND REPLACED CAPT FIRE WARNING LIGHT SWITCH IAW AMM 33-11-00. OPS CHECK GOOD . THIS CLEARS MEL 26-10-02

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Lights · lamp · inoperativeAug 6, 2026

    OVERWING EXIT DOOR LIGHT RT SIDE, INOPERATIVE. OK TO CONTINUE IAW MEL 33-2-03. SP1B, MDDR 333138. REPLACED THE LAMPS IN THE RT OVERWING EXIT DOOR WINDOW LIGHT IAW AMM 33-21-00. OPS CHKD GOOD.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · cover · missingJul 24, 2026

    PASSENGER CABIN AFT SERVICE DOOR SLIDE COVER END CAP MISSING. INSTALLED PASSENGER CABIN AFT SERVICE DOOR SLIDE COVER END CAP IAW AMM 25-66-01.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Doors · door · crackedJul 24, 2026

    LEFT MLG CENTER DOOR CRACKED. REMOVED LT CTR & INNER MLG GEAR DOOR IAW AMM 32-13-11, OK FOR CONTINUED SERVICE IAW CDL 32-10-3XC. REINSTALLED L/H MLG CENTER DOOR IAW AMM 32-13-11 REINSTALLED L/H MLG WING DOOR IAW AMM 32-13-21.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · strap · not reportedMay 12, 2026

    STA 328 FRAME STRAP FROM STR 22R TO STR 20R DOES NOT MATCH WITH CONFIGURATION TASK 5311-I-17336-NG FIGURE 15. AS PER EA 26-153-01284; THE CONFIGURATION IS ACCEPTABLE.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · fitting · crackedMay 10, 2026

    REMOVE AND REPLACE SLAT NR 8 DUE TO CRACKED ACTUATOR FITTING. REPLACED LEADING EDGE SLAT 8 AT RT WING IAW AMM 27-81-21-401. TESTED OK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · plate · crackedMay 10, 2026

    CRACK CORRUGATED PLATE TRAILING EDGE IRSS 199 PLUS 16 INCH AT LT WING. REPLACED CORRUGATED PLATE TRAILING EDGE IRSS 199 PLUS 16 INCH AT LT WING IAW SRM 51-40-02-0G-0 AND DWG 115A2001; SHEET 30; REV.A.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · support bracket · crackedMay 10, 2026

    CRACK SUPPORT BRACKET TRAILING EDGE ORSS 261 PLUS 10 INCH AT LT WING. REPLACED SUPPORT BRACKET AND FASTENERS ON TRAILING EDGE ORSS 261 PLUS 10 INCH AT LT WING I.A.W B737-700 SRM 51-10-02 ITEM 9 AND SRM 51-40-02.<BR>MEASURE OF CRACK IS: 0.650 INCHES.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · angle · crackedMay 10, 2026

    CRACK ANGLE TRAILING EDGE ORSS 261 PLU 18 INCH LT WING. REPLACED ANGLE AND FASTENERS TRAILING EDGE ORSS 261 PLU 18 INCH LT WING IAW SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 15A6200 SHEET 10 REV. -.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · angle · crackedMay 10, 2026

    CRACK ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH LT WING. REPLACED ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH LT WING IAW SRM 51-40-02 AND DWG 115A2930 SHEET 7 REV. - DUE TO NOT FOUND ALOWABLE DAMAGE ON SRM 57-51-02R.

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

Showing the 10 most recent of 314 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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