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Aircraft record

N409YK1993 Boeing 737-436

Registration validUnclaimedSource: FAA, updated Oct 17, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply4 service difficulty reports

Registration
Valid
expires Apr 30, 2031
Based in
Lake Mary, FL
owner city / state
Engine
CFM56-3C1 · 23,515 lb thrust
Cfm Intl
Owners
1
since 2024
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
4
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Registered owner
Aircraft 25859 LLC
Owner type
LLC
City, state
Lake Mary, FL
Certificate issued
Apr 10, 2024
Expires
Apr 30, 2031
Airworthiness
Standard · Transport
Airworthiness date
Dec 18, 2024

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
737-436
Year
1993
Serial number
25859
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
149
Engines
2
Max takeoff weight
20,000 and over lb
Mode S code
A4D040

Engine

Make and model
Cfm Intl Cfm56-3c1
Type
Turbo-fan
Power
23,515 lb thrust

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

Ownership history

Ownership history from FAA records
  1. 2024 – nowAircraft 25859 LLCLake Mary, FL · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 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 (737-436)
2002-20-07 R1Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-436)
2002-20-07Boeing Model 737 Series AirplanesNov 12, 2002Airframe (737-436)
2001-11-11Boeing Model 737, 747, and 777 Series AirplanesJul 16, 2001Airframe (737-436)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 (737-436)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 (737-436)
2000-22-02 R1Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-436)
2000-22-02Boeing Model 737 Series AirplanesNov 13, 2000Airframe (737-436)
2000-15-16Boeing Model 737, 757, 767, and 777 Series AirplanesSep 12, 2000Airframe (737-436)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 (737-436)
99-22-16Boeing Model 737 Series AirplanesDec 7, 1999Airframe (737-436)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 (737-436)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 (737-436)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 (737-436)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 (737-436)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 (737-436)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 (737-436)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 (737-436)
97-05-10Boeing Model 737 Series AirplanesMar 19, 1997Airframe (737-436)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 (737-436)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 (737-436)

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

Service Difficulty Reports (4)

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.

  • Air conditioning and pressurization · outflow valve · failedJun 22, 2026

    CABIN ALT WARNING IN CRUISE. UNCONTROLLABLE IN AUTO OR STANDBY. WAS CONTROLLABLE IN MANUAL MODE. CR FLT 320 FOR ABOUT 30 MINS. REMOVED AND REPLACED CABIN PRESS OUTFLOW VALVE, OPS CHECK GOOD REF B737-400 AMM 21-31-11

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Equipment and furnishings · slide · unwanted deployMay 4, 2026

    L1 DOOR SLIDE DEPLOYED (INADVERTENT, HUMAN ERROR). REMOVED AND REPLACED L1 DOOR SLIDE ASSY REF AMM 25-61-35-402-003

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Wings · bracket · crackedMay 25, 2025

    LH FIXED TRAILING EDGE UPPER INBD PANEL ANGLE BRACKET CRACKED. STOP DRILLED END OF CRACK. FABRICATED CBER 15-5 050 FOR HEAT TREAT - ROCKWELL TEST @33. PRIMED AND INSTALLED REF B737-400 SRM 51-51-90 AND EO 737-00003

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 4 reports
  • Wings · bracket · crackedMay 25, 2025

    RH FIXED TRAILING EDGE UPPER INBOARD PANEL ANGLE BRACKET CRACKED. STOP DRILLED CRACK. FAB DBLR 15-5 .050 HEAT TREATED ROCKWELL @33. PRIMED INSTALLED ANGLES REF B737 SRM 57-51-90 AND EO 737-53-00003

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

Related aircraft

Show all 8 related aircraft
All 6 registered Boeing 737-436 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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