Cessna 310J N3005L

Summary

On 5 June 1993 at about 13:45 local time, a Cessna 310J registered N3005L was involved in an accident near Broomfield, Colorado, United States. 2 people were on board and one had minor injuries. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

5 June 1993 at 13:45

Classification

Accident

Location

Broomfield, Colorado, United States

Nearest airport

Jeffco (BJC)

Coordinates

39.9401, -105.0602

Aircraft

Cessna 310J

Registration

N3005L

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

DEN93FA066

1 person had minor injuries.

FRICTION OF ESCAPING OXYGEN UNDER HIGH PRESSURE IGNITING A LUBRICANT IN THE NOSEWHEEL WELL AREA, AND IMPROPER AIRCRAFT SERVICING BY MAINTENANCE PERSONNEL.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

THE PILOT-IN-COMMAND AND INSTRUCTOR-TRAINEE WERE SITTING IN THE COCKPIT DISCUSSING THE LESSON PLAN. THEY SAW FIRE AROUND THE GLARESHIELD AND WINDSHIELD. POST-ACCIDENT INVESTIGATION TRACED THE FIRE PATTERN BACK TO THE NOSEWHEEL WELL AND THE OXYGEN SYSTEM BOTTLE. IT WAS LEARNED THAT THE REGULATOR HAD BEEN LEAKING AND THE ON-OFF CONTROL CABLE WAS BINDING. THE LEAK WAS THOUGHT TO HAVE BEEN FIXED. A MECHANIC SAID HE LUBRICATED THE COCKPIT END OF THE REGULATOR CONTROL. THE AIRCRAFT OWNER SAID THE MECHANIC USED AN AEROSOL CAN TO LUBRICATE SOMETHING IN THE NOSEWHEEL WELL. ACCORDING TO THE FIRE DEPARTMENT'S ARSON SQUAD, THE CAUSE OF THE FIRE WAS 'FRICTION OF ESCAPING OXYGEN IGNITING LUBRICANT ON CABLE.'

Quoted verbatim from the NTSB record.