LIVE DATA
Telemetry Active
Today 2026-09-17
Data refreshed 00:00 UTC
Refresh in 04:59

N78866

Type: Boeing 757-300 (B753) Mode S Hex: AAB187 Operator: United Airlines Status: ACTIVE

Airframe N78866 Key Facts

  • Airframe N78866 (Boeing 757-300) was last observed on 2026-09-17 at monitored terminal (Global Airspace).
  • Current operational status is classified as ACTIVE with 0 consecutive days unobserved.
  • Registered Mode S 24-bit transponder address is AAB187 with manufacturer serial number (MSN) 32591.
N78866 (Boeing 757-300)
Boeing 757-300 · Operated by United Airlines Reference: File Upload Bot (Magnus Manske)
Aviation Spotter Galleries for Tail N78866:
Planespotters.net → JetPhotos → FlightRadar24 Telemetry →

Registry Record

Registration Mark
N78866
Manufacturer Serial Number (MSN)
32591
Mode S 24-bit ICAO Hex
aab187
Registered Owner
Wells Fargo Trust Co Na Trustee
Lessor / Financing
Carrier Owned / Unlisted
Estimated Airframe Age
5.2 years
Resolution Confidence
HIGH

Observation & Telemetry State

Current Status
ACTIVE
First Observed Date
2020-01-01
Last Observed Date
2026-09-17
Last Observed Airport
Unassigned Airspace
Days Without Observed Flight
0 days

Airframe Lifecycle & Genealogy History

MSN 32591 • Hex AAB187
2021 OEM Production
Assembled by Boeing
Manufactured as Boeing 757-300 with Manufacturer Serial Number 32591 and assigned ICAO Mode S hex AAB187.
2021 Commercial Entry
Delivered into Commercial Service
Accepted into commercial scheduled operations under tail registration N78866.
2024 Fleet Ownership
Direct Carrier Ownership
Direct balance-sheet asset operated and maintained under direct corporate ownership.
2026 (Current) ACTIVE
Operated by United Airlines
Current observed airframe age is 5.2 years. Telemetry active across global ADS-B tracking corridors.

90-Day Observed Activity Strip

Daily flight activity observations over the previous 90-day window.

Observed ADS-B Signal Unobserved / On Ground

Observed Flight Corridor History

CYYZ-KATLKATL-KLAXKLAX-KJFK