# Incident 20121225028449I: Boeing 747-451, Anchorage, AK, December 25, 2012

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 25, 2012, 16:15 local time
- Place: Anchorage, AK
- Airport: Ted Stevens Anchorage International
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air carrier (Part 121)
- Operator: DALA
- Location: 61.1741° N, 149.9981° W: Placed by OpenAirDocs at TED STEVENS ANCHORAGE INTL (ANC), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.1741&lon=-149.9981&mi=10
- Aircraft: N663US, a cancelled registration (https://openairdocs.org/deregistered/N663US-2018-05-22) (OpenAirDocs)
- Registry model: Boeing 747-451 (registry code 1384940, https://openairdocs.org/model/boeing-747-451) (OpenAirDocs)
- Registry engine: Pratt & Whitney PW4000 series (registry code 52119, https://openairdocs.org/engine/pratt-whitney-pw4000-series) (OpenAirDocs)
- Reported make and model: BOEING 747-451
- Reported engine: P&W PW4000 SER
- People aboard: 394
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20121225028449I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

FROM THE STATEMENT PROVIDED FROM THE CREW, THE PIC WAS PILOTING THE AIRCRAFT DURING TAKE-OFF FROM ATL ENROUTE TO NRT.  THE SIC REPORTED HEARING A ?THUMP? WHEN HE RAISED THE GEAR.  ONCE THEY RAISED THE FLAPS, A SLIGHT VIBRATION WAS OBSERVED AND MEMBERS OF THE CREW WENT DOWN TO INVESTIGATE.  THE CREW CONTACTED THEIR OCC AND ALSO SPOKE WITH THEIR MAINTENANCE CONTROL.  AFTER RUNNING THROUGH THE AIRCRAFT SYSTEMS, THE DECISION WAS MADE TO CONTINUE WITH THE FLIGHT.  APPROXIMATELY 5-6 HOURS INTO THE FLIGHT DURING A CREW REST EXCHANGE, THE CREW WENT BACK DOWN TO INVESTIGATE THE VIBRATION SINCE ONE OF THE CABIN CREW HAD COMMENTED THAT THE VIBRATION WAS ?TICKLING THEIR FEET?.  DURING THIS RE-LOOK INTO THEIR SITUATION IT WAS DISCOVERED THAT THE VIBRATION HAD GOTTEN WORSE AND THE DECISION TO MAKE AN EMERGENCY LANDING AT ANC.  DURING THE FLIGHT THERE WERE NO COCKPIT INDICATIONS OR FAULTS OF THE AIRCRAFT SYSTEMS.

## Other reports on N663US (3)

Matched to the same aircraft by N-number and date.

- [Incident 20080214832909I](https://openairdocs.org/incident/20080214832909I), Feb 14, 2008: Boeing 747451 (N663US), Narita, JA, Minor damage. (-23) Flight 1, a B-747-400 operating from Narita, japan to hong kong had a minor fire in the overhead during passenger boarding. After being placed in the…
- [Incident 19930320011689I](https://openairdocs.org/incident/19930320011689I), Mar 20, 1993: Boeing 747451 (N663US), Detroit, MI, Minor damage. Struck runway lights on final approach. Found hole in NR4 engine inlet cowl and fan blade damage.
- [Incident 19910919041729I](https://openairdocs.org/incident/19910919041729I), Sep 19, 1991: Boeing 747451 (N663US), Narita, JA, Minor damage. Cabin pressure and fire warning on climb out declared emergency. Returned.fire NR2 engine area electic cables arcing

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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