Boeing B-737-222 N9015U

Summary

On 9 July 1984 at about 21:15 local time, a Boeing B-737-222 registered N9015U was involved in an incident near Portland, Oregon, United States. 71 people were on board and nobody was injured. No probable cause statement is available for this record.

Date

9 July 1984 at 21:15

Classification

Incident

Location

Portland, Oregon, United States

Coordinates

45.5794, -122.9092

Aircraft

Boeing B-737-222

Registration

N9015U

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Portland → San Diego

Aircraft damage

Not recorded

Weather

VMC

Light

Day

NTSB number

SEA84IA168

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

AFTER TAKEOFF, THE ACFT WAS CLIMBING THRU ABOUT 4000 FT WHEN THE APU FIRE WARNING LIGHT ILLUMINATED. THE FLT CREW DISCHARGED THE FIRE EXTINGUISHING UNITS & REQUESTED AN EMERGENCY LANDING. A TEARDOWN OF THE APU REVEALED EVIDENCE THAT A HARD OBJECT WAS INJESTED INTO THE 1ST STAGE COMPRESSOR IMPELLER, BENDING 2 OF THE BLADES. THE OBJECT CONTINUED THRU THE ENG & IMPACTED THE EXDUCER BLADE. THE BLADE FAILED AT A CRACK & PENETRATED THE EXHAUST PIPE ASSEMBLY. HOT GASES THEN VENTED INTO THE COOLING AIR PASSAGE & OVERHEATED THE TAIL CONE & AFT PORTION OF THE APU.

Quoted verbatim from the NTSB record.