McDonnell Douglas DC 10-10 N1845U

Summary

On 23 September 1992 at about 16:22 local time, a McDonnell Douglas DC 10-10 registered N1845U, operated by United Airlines, was involved in an incident near San Francisco, California, United States. 235 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.

Date

23 September 1992 at 16:22

Classification

Incident

Location

San Francisco, California, United States

Coordinates

37.6103, -122.3795

Aircraft

McDonnell Douglas DC 10-10

Registration

N1845U

Category

Airplane

Engines

3

Operator

United Airlines

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Unknown → Kona

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

LAX92IA397

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

A MCDONNELL DOUGLAS AIRCRAFT COMPANY DC 10 SERIES 10 AIRCRAFT EXPERIENCED AN UNCONTAINED FAILURE OF THE NUMBER 1 ENGINE WHILE IN THE CRUISE CLIMB. THE ENGINE HAD SUSTAINED AN UNCONTAINED FAILURE OF THE 14TH THROUGH 16TH STAGE COMPRESSOR SPOOL. ABOUT 11 YEARS BEFORE THE INCIDENT, THE SPOOL WAS DAMAGED BEYOND MAINTENANCE MANUAL LIMITS. THE DAMAGE CONSISTED OF A 360 DEGREE RUB ON THE AFT RIM SURFACE (SURFACE Q) OF THE 16TH STAGE COMPRESSOR. THE SPOOL WAS PLACED IN STORAGE FOR FIVE YEARS AND THEN RETURNED TO SERVICE AFTER BEING REPAIRED. FLIGHT PROFILE STRESSES WERE ANALYZED BY ENGINE MANUFACTURER. ACCORDING TO THE ENGINE MANUFACTURER, PEAK STRESSES IN THE AFT RIM REGION OR SURFACE Q OCCUR AT THE SAME TIME IN THE FLIGHT PROFILE AS THE UNCONTAINED FAILURE.

Quoted verbatim from the NTSB record.