The U.S. aircraft register, updated daily
Accidents · NTSB DCA12WA029 · Preliminary: the investigation is not finished

Boeing 747 incident near London, Gb, January 17, 2012

On January 17, 2012 at about 4:30 pm local time, a Boeing 747, registered HL7601, was involved in an incident during enroute (cruise) near London. It was flown under non-U.S. commercial rules. The NTSB record does not give the injuries.

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this incident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
January 17, 2012 · about 4:30 pm local time
Place
London, United Kingdom
Type
Incident
Injuries
The NTSB record does not give the injuries.
Weather
not recorded
Aircraft
Boeing 747 · all 747s on the register
Registration
HL7601 · no longer on the register
Damage
Not recorded
Flight
Flight · non-U.S. commercial rules

The NTSB's narrative preliminary · quoted from the NTSB record

The UK Air Accidents Investigation Branch (AAIB) has notified the NTSB of an incident involving a Boeing 747 that occurred on January 17, 2012. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB investigation under the provisions of ICAO Annex 13 as the State of Manufacturer and Design of the airplane. All investigative information will be released by the AAIB.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Sys/Comp malf/fail (non-power) during enroute (cruise) defining event

The aircraft

  • Landing gear: retractable
  • Operator: Korean Air

The flight

  • A second pilot was aboard

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.