N631US (Dji S900/A2) — routes, history & safety record

FlightFinder has no observed route profile for this registration. The documented safety events below are available independently of live flight tracking.

Scheduled US airline service

Reported in scheduled US passenger service from March 1995 to April 2003 — 61 flights. Last reported flight: April 1, 2003, Northwest Airlines, SEA → MSP.

Not reported in scheduled US service since April 2003 (data through July 2026).

Carrier	First	Last	Flights
Northwest Airlines NW	March 1995	April 2003	61

Source: BTS Reporting Carrier On-Time Performance (public domain; US reporting carriers, scheduled domestic flights).

US fleet inventory (BTS B-43)

Filed in BTS’s annual carrier fleet inventory from 2006 to 2009, most recently reported as owned.

Carrier	First filed	Last filed
Northwest Airlines NW	2006	2009

Source: BTS Form 41 Schedule B-43 (Annual Inventory of Airframe and Aircraft Engines) (open data; large certificated US carriers, annual filing).

Safety history

November 2, 1994Accident
inattentive maintenance service of the airplane by the mechanic who failed to disengage the constant speed drive (CSD) after the engine runup had been completed. A factor in this incident was the lead mechanic not performing maintenance record keeping after being informed that the CSD had been recoupled.
Boeing 747-251B
inattentive maintenance service of the airplane by the mechanic who failed to disengage the constant speed drive (CSD) after the engine runup had been completed. A factor in this incident was the lead mechanic not performing maintenance record keeping after being informed that the CSD had been recoupled. Full accident record