McDonnell Douglas DC-8-54 N8048U

Summary

On 26 June 1984 at about 07:35 local time, a McDonnell Douglas DC-8-54 registered N8048U was involved in an incident near Chicago, Illinois, United States. 3 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.

Date

26 June 1984 at 07:35

Classification

Incident

Location

Chicago, Illinois, United States

Nearest airport

O'hare (ORD)

Coordinates

Not recorded

Aircraft

McDonnell Douglas DC-8-54

Registration

N8048U

Category

Airplane

Engines

4

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Newark → Chicago

Aircraft damage

Minor

Weather

VMC

Light

Night/Dark

NTSB number

CHI84IA264

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

DURING THE LANDING ROLL, THE LEFT MAIN GEAR SWIVEL LINK PIN FAILED ALLOWING THE REAR SET OF TIRES TO BECOME DETACHED FROM THE MAIN STRUT AND DRAG ALONG THE RWY. THE LEFT MAIN GEAR BOGIE WAS LAST OVERHAULED IN 1981. AT THE TIME OF FAILURE, IT HAD 4459 HOURS SINCE OVERHAUL. METALLURGICAL STUDY OF THE SWIVEL PIN REVEALED, 1) INTERGRANULAR CRACKING THRU 40% OF PIN CROSS-SECTION, 2) EVIDENCE OF STRESS CORROSION FROM OVERTORQUING THE NUT ON THREADED END OF PIN, 3) TRACES OF COPPER, SOMETIMES USED BEFORE CHROMIUM PLATING DURING OVERHAUL, FOUND IN CRACK, 4) NO OVERLOAD EVIDENCE IN PREEXISTANT CRACK, AND 5) INDICATIONS THAT FINAL FRACTURE WAS DUE TO OVERLOAD.

Quoted verbatim from the NTSB record.