# Incident 19960105007659I: Boeing 747251B, Los Angeles, CA, January 5, 1996 - Type: FAA incident report (Accident/Incident Data System), as reported - Date: January 5, 1996, 12:30 local time - Place: Los Angeles, CA - Airport: Los Angeles International - Damage: Minor damage - Phase of flight: Forced/Precautionary Landing - Operating rules: Air carrier (Part 121) - Operator: NWAA - Location: 33.9510° N, 118.4009° W: From the FAA, an estimate near the named town, within about 3 miles - Nearby events: https://openairdocs.org/map.md?lat=33.9510&lon=-118.4009&mi=10 - Aircraft: N628US, a cancelled registration (https://openairdocs.org/deregistered/N628US-2007-09-26) (OpenAirDocs) - Registry model: Boeing 747-251B (registry code 1384892, https://openairdocs.org/model/boeing-747-251b) (OpenAirDocs) - Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs) - Reported make and model: BOEING 747251B - Reported engine: PWA JT9D7Q - People aboard: 385 - Fatal injuries: 0 - NTSB investigation: [NTSB LAX96IA087](https://openairdocs.org/ntsb/LAX96IA087) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/19960105007659I ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. NARRATIVE: ON JANUARY 5, 1996, ABOUT 1230 PACIFIC STANDARD TIME, A BOEING 747-251B, N628US, SUSTAINED AN UNCONTAINED FAILURE OF THE NUMBER 2 ENGINE TURBINE SECTION DURING THE ENROUTE CLIMB PHASE OF FLIGHT NEAR LOS ANGELES, CALIFORNIA. THE AIRCRAFT WAS OPERATED BY NORTHWEST AIRLINES, INC., AS THEIR FLIGHT NUMBER 1, A REGULARLY SCHEDULED NON-STOP INTERNATIONAL PASSENGER FLIGHT FROM LOS ANGELES TO NARITA AIRPORT, TOKYO, JAPAN. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME AND AN IFR FLIGHT PLAN WAS FILED FOR THE FLIGHT. THE AIRCRAFT SUSTAINED MINOR DAMAGE TO THE NUMBERS 1 AND 2 ENGINE COWLS, AND THE FAN STAGE OF THE NUMBER 1 ENGINE. NONE OF THE 366 PASSENGERS AND 19 CREW ON-BOARD WERE INJURED. THE FLIGHT ORIGINATED FROM LOS ANGELES INTERNATIONAL AIRPORT ABOUT 1200 ON THE MORNING OF THE INCIDENT. IN A VERBAL REPORT TO NORTHWEST AIRLINES, THE FLIGHT CREW SAID THAT THE NUMBER 2 ENGINE FIRE WARNING ILLUMINATED DURING CLIMB ABOUT 20 MINUTES AFTER TAKEOFF. THE CREW DISCHARGED A FIRE BOTTLE TO THE AFFECTED ENGINE AND SECURED IT. THE CREW DUMPED 147,000 POUNDS OF FUEL AND RETURNED TO LOS ANGELES, WHERE AN UNEVENTFUL LANDING WAS MADE AT 1300. POST ACCIDENT INSPECTION OF THE AIRCRAFT REVEALED A 2-FOOT HOLE IN THE ENGINE COWL TURBINE AREA AT THE 9 O'CLOCK POSITION. NO EVIDENCE OF FIRE WAS OBSERVED. MINOR DENTS WERE NOTED ON THE NUMBER 1 ENGINE COWL AND SEVERAL FAN BLADES WERE FOUND WITH NICKS AND LEADING EDGE DAMAGE. THIS INCIDENT IS CLOSED. ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB LAX96IA087](https://openairdocs.org/ntsb/LAX96IA087), Jan 5, 1996: Boeing 747-251B (N628US), Los Angeles, CA, incident, minor damage. Probable cause: The fatigue fracture of the number 4 bearing oil pressure tube due to an improper maintenance cleaning procedure by company maintenance personnel. ## Other reports on N628US (5) Matched to the same aircraft by N-number and date. - [Incident 19951117041179I](https://openairdocs.org/incident/19951117041179I), Nov 17, 1995: Boeing 747251B (N628US), San Francisco, CA. Narrative: F28/16 nov. #2 engine has significant vibration during climb. Nacelle temporally indicates 4.5 all other indications normal. In cruise vibration… - [Incident 19850506021279I](https://openairdocs.org/incident/19850506021279I), May 6, 1985: Boeing 747251B (N628US), Chicago, IL. Shutdown nr 1 engine during climb due to high EGT and vibration. Safe landing. Metal found in tail pipe. - [Incident 19830915067249I](https://openairdocs.org/incident/19830915067249I), Sep 15, 1983: Boeing 747* (N628US), New York, NY, Minor damage. On push back from gate aircraft hit another aircraft taxiing to gate. Tug driver did not see signal to stop. - [Incident 19820707040529I](https://openairdocs.org/incident/19820707040529I), Jul 7, 1982: Boeing 747251B (N628US), Narita, JA. On rotation at takeoff, aircraft had a fire warning on engine. Engine shut down. Fuel dumped. Fuel nozzle coking. - [Incident 19820702049249I](https://openairdocs.org/incident/19820702049249I), Jul 2, 1982: Boeing 747* (N628US), Tokyo, JA, Minor damage. An aborted takeoff at departure created enough heat to release tire pressure. Landed with several deflated tires. 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.