Airframe N999DN Key Facts

  • Airframe N999DN (McDonnell Douglas MD-88) 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 ADF46A with manufacturer serial number (MSN) 53371.
N999DN (McDonnell Douglas MD-88)
McDonnell Douglas MD-88 · Operated by Delta Air Lines Reference: Aviation Photography

Registry Record

Registration Mark
N999DN
Manufacturer Serial Number (MSN)
53371
Mode S 24-bit ICAO Hex
adf46a
Registered Owner
Delta Air Lines
Lessor / Financing
Carrier Owned / Unlisted
Estimated Airframe Age
6.0 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 53371 • Hex ADF46A
2020 OEM Production
Assembled by McDonnell
Manufactured as McDonnell Douglas MD-88 with Manufacturer Serial Number 53371 and assigned ICAO Mode S hex ADF46A.
2020 Commercial Entry
Delivered into Commercial Service
Accepted into commercial scheduled operations under tail registration N999DN.
2023 Fleet Ownership
Direct Carrier Ownership
Direct balance-sheet asset operated and maintained under direct corporate ownership.
2026 (Current) ACTIVE
Operated by Delta Air Lines
Current observed airframe age is 6.0 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