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Boeing 737-400 (737-401) · N804TJ · Swift Air

Boeing 737-400 (737-401) illustration in Swift Air livery Illustrative image; it may differ from the actual aircraft.

Boeing 737-400 (737-401)

B737-23988Active
RegistrationUSN804TJ
Verified aircraft dataagainst the official civil aviation registerWhat does this badge mean?We checked that this aircraft’s registration, serial number and model match the official civil aviation register: FAA (United States), data as of Oct 8, 2026.That makes its identity more reliable. The verification expires after 12 months: if the register stops confirming it, the badge disappears.How we verify
OperatorSwift Air
5operators
3incidents
0accidents
0logbook years
0photos

Boeing 737-400 (737-401) built in 1989 in Renton. Operates for Swift Air. Previously flew for Piedmont Airlines, USAir, US Airways and Eastern Air Express.

NewNearly newYoungMatureAgingOld
Old · 37 years · ≈ 122,100 flight hours (approx.)
Vuelopedia is a work in progress: it currently holds about 30% of the information we expect to have by the third quarter of 2027. Although we use only official, highly reliable sources, some aircraft data and history may still contain errors or inaccuracies. We work hard to clear every anomaly from the records using specialized verification tools.

Recent flights

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Technical data

ManufacturerBoeing
Engines2× CFM INTL. CFM56 SERIES
PropulsionJet
First flight1989
Built inRenton, Washington (EE. UU.)
Country of registrationEstados Unidos
OwnerSwift Air Llc
MSN23988
Hex / ICAO 24-bitAAF26B
VerificationIdentity verified against the official register of FAA (United States) · Oct 8, 2026

The model · Boeing 737

Figures for the 737-800 variant, the most representative of the family

Length39.5 m129 ft
Wingspan35.8 m117 ft
Height12.6 m41 ft
Range5,436 km2,935 NMWith a typical passenger load
Cruise speed834 km/h450 ktMach 0.79
Service ceiling12,500 m41,011 ftIt flies above Everest (1.4 times its height)
Maximum take-off weight79,016 kg174,200 lb
Maximum payload37,603 kg82,900 lbIts 162 passengers with baggage would weigh about 16.2 t; the rest is fuel and cargo
Typical capacity162 passengersUp to 189 in a high-density layout
Endurance6 h 31 minAt cruise speed, non-stop

With its 5,436 km range, from Dallas-Fort Worth it could fly non-stop as far as:

LIMLima5,424 kmBOGBogota3,933 kmPTYTocumen3,210 kmSEASeattle2,668 kmJFKNew York2,235 km
Beyond its rangeLHRLondon7,627 km

The type first flew in 1967 (59 years ago) · About 10,200 units built · Production ended in 2019

Figures for the type, not for this particular aircraft: each variant and each configuration changes something. They are shown in both systems used in aviation.

The full story of the Boeing 737 Compare this aircraft

Airports

Airports of the airlines that have operated it

1997–2013US Airways network of its single-aisle aircraft
Base
DFWDallas-Fort WorthMIAMiamiCLTCharlotte
Main destinations
PHXPhoenixPHLPhiladelphiaORDChicagoLAXLos AngelesJFKNew YorkDCAWashingtonLISLisbonBOSBostonMCOOrlando

Flight logbook

Under research

Aircraft chronology

1989
Built
Assembled by Boeing in Renton, Washington (USA).
May 11, 1989
Delivered to Piedmont Airlines
Delivered to Piedmont Airlines as N421US.
Aug 5, 1989
Transferred to USAir
Transferred to USAir.
Feb 27, 1997
Transferred to US Airways
Transferred to US Airways.
Nov 1, 2013
Transferred to Swift Air LLC
Transferred to Swift Air LLC.
Jun 18, 2015
Re-registered
Changed from N421US to N804TJ (still with Swift Air LLC).
Nov 20, 2019
Incident at Miami
On November 20, 2019, the Boeing 737-401 aircraft (registration N804TJ), operated by Swift, was involved in an incident at Miami. Source: Swift.
Source: Swift
Apr 22, 2024
Transferred to Eastern Air Express
Transferred to Eastern Air Express.
May 1, 2024
Transferred to Eastern 737 Asset Holdings
Transferred to Eastern 737 Asset Holdings.
Oct 18, 2025
Incident at Ft. Myers
On October 18, 2025, the Boeing 737-401 aircraft (registration N804TJ), operated by Eastern Express, was involved in an incident at Ft. Myers. Source: the FAA (United States).
Source: FAA
Dec 29, 2025
Incident at Miami
On December 29, 2025, the Boeing 737-401 aircraft (registration N804TJ), operated by Eastern Express, was involved in an incident at Miami. Source: the FAA (United States).
Source: FAA

Operators

1989-05-11
Piedmont Airlines
Registration N421US
1989-08-05
USAir
Registration N421US
1997-02-27
US Airways
Registration N421US · Lessor: BCI Aircraft Leasing
2013-11-01
Swift Air LLC
Registration N421US · Lessor: BCI Aircraft Leasing
2015-06-18
Swift Air LLC
Registration N804TJ
2024-04-22
Eastern Air Express
Registration N804TJ
2024-05-01
Eastern 737 Asset Holdings
Registration N804TJ · Lessor: Eastern 737 Asset Holdings

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Current position of the aircraft

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Real-time position via adsb.lol (ODbL license). There is a signal only while the aircraft is airborne and within coverage.

Cite

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This page was last updated on October 15, 2026

APA

Vuelopedia. (2026, October 15). Boeing 737-400 (737-401) · N804TJ · Swift Air. Retrieved October 18, 2026, from https://vuelopedia.org/en/aircraft/B737-23988

MLA

“Boeing 737-400 (737-401) · N804TJ · Swift Air.” Vuelopedia, Fundación Poderia, 15 Oct. 2026, vuelopedia.org/en/aircraft/B737-23988. Accessed 18 Oct. 2026.

Chicago

Vuelopedia. “Boeing 737-400 (737-401) · N804TJ · Swift Air.” Fundación Poderia. Last modified October 15, 2026. https://vuelopedia.org/en/aircraft/B737-23988.

Harvard

Vuelopedia (2026) Boeing 737-400 (737-401) · N804TJ · Swift Air. Available at: https://vuelopedia.org/en/aircraft/B737-23988 (Accessed: 18 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_b737_23988,
  author       = {{Vuelopedia}},
  title        = {{Boeing 737-400 (737-401) · N804TJ · Swift Air}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-15},
  url          = {https://vuelopedia.org/en/aircraft/B737-23988},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/B737-23988}},
  urldate      = {2026-10-18},
  note         = {Accessed 2026-10-18}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/B737-23988 |title=Boeing 737-400 (737-401) · N804TJ · Swift Air |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-15 |access-date=2026-10-18 |language=en}}