N37528
Type: Boeing 737 MAX 9 (B39M) Mode S Hex: A4491D Operator: United Airlines Status: ACTIVE
Airframe N37528 Key Facts
- Airframe N37528 (Boeing 737 MAX 9) 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 A4491D with manufacturer serial number (MSN) 64502.
Registry Record
Observation & Telemetry State
Airframe Lifecycle & Genealogy History
MSN 64502 • Hex A4491DAssembled by Boeing
Manufactured as Boeing 737 MAX 9 with Manufacturer Serial Number 64502 and assigned ICAO Mode S hex
A4491D.
Delivered into Commercial Service
Accepted into commercial scheduled operations under tail registration N37528.
Financed by AerCap
Placed under operating lease portfolio with long-term placement agreement and institutional asset management.
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