Registered owner
United Airlines Inc
Location
Chicago, IL
Owner type
Corporation
Serial number
67579
Year built
2023
Type
Fixed wing multi engine
Engine
Turbo-fan
Airworthiness
Standard, transport
Airworthiness date
March 29, 2023
Certificate issued
April 4, 2023
Expires
April 30, 2030
Mode S code
A44984

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every CFM International LEAP-1B28 model are included below.

On this page

Airworthiness directives that may apply · 48

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

2018In forceSuperseded2026
ADs by the year they took effect: 58 ADs
20185
20194
20207
202110
20224
20239
20246
20255
20268
See all 58 ADs

Information bulletins that may apply · 4

Advisory, not mandatory.

NTSB investigations

No NTSB investigations matched to N37556Matched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Boeing 737-9 aircraft

FAA incident reports

No FAA accident or incident reports matched to N37556Matched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Boeing 737-9 aircraft

Service difficulty reports · 5

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

SDR CALA2026021613770Hydraulic System · overservicedPACK LIGHT COMES ON DURING FLT, LT PACK LIGHT CLB THRU FL200 BURN ODOR FOLLOWED BY PACK LIGHT ON. QRH TRIP R ESET UNSUCCESSFUL. FAULT HISTORY SHOWS MAINTENANCE MESS. 21-55100 (LT PACK OVERHEAT SHUTDOWN IN FLT ) FIM 21-51 TASK 819 ALSO MAINTENANCE MESGE. 21-30Jan 29, 2026 · N37556 · Boeing 7379 · Hydraulic System, MainSDR CALA2025103010722Bracket · out of adjustFA REPORTS GIRT BAR BRACKET AT 1R NEEDS ADJUSTMENT VERIFIED GIRT BAR BRACKETS OPERATIONAL PER AMM 25-66-01, NO FAULTS FOUND. OK TO CONT.Oct 28, 2025 · N37556 · Boeing 7379 · Emergency EquipmentSDR CALA2025092409191Unknown · odorOBVIOUS AND OVERWHELMING SMELL OF CIGARETTE SMOKE IN PACK 1 SYSTEM. STRONG IN FLIGHT DECK. RAN PACKS, NO SMELL COMING FROM VENTS. TESTED SMOKE DETECTOR AS A PRECAUTION. CHECKED OK. INSPECTED IN ALL CABINETS AND BEHIND LAV SHROUD. INSPECTED LT PACK BAY. NO DEFESep 22, 2025 · N37556 · Boeing 7379 · Air Distribution SystemSDR CALA2025061805673Landing Light · malfunctionedRIGHT LANDING LIGHT FLASHED ON/OFF UNCOMMANDED AFTER LANDING PERFORM LTRTL MAIN ARRAY - OPERATIONAL TEST PER 33-42-21-710-801, TEST PASSED, NO FLASHING NOTEDJun 15, 2025 · N37556 · Boeing 7379 · Exterior LightingSDR CALA2025030702633Girt Bar · wornR1 DOOR SLIDE GIRT MATERIAL IS WORN REMOVED AND REPLACED R 1 SERVICE DOOR SLIDE I.A.W. MM 25-66-01-400-802 OPS CKS GOOD PARTS USED: 1950660,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1950660 SN OFF 0665 SLIDE, FWD/AFT OFF 29-2566-9-0006 0665 ON 29-25Mar 5, 2025 · N37556 · Boeing 7379 · Emergency Equipment

STCs that may be installed · 105

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.

See all 105 STCs

Earlier aircraft with this N-number · 1

This aircraft carried N37556 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.