Cessna 340 N4124Q

Summary

On 17 January 1985 at about 05:57 local time, a Cessna 340 registered N4124Q was involved in an accident near Johnson City, Tennessee, United States. 3 people were on board and 3 died. The aircraft was destroyed. No probable cause statement is available for this record.

Date

17 January 1985 at 05:57

Classification

Accident

Location

Johnson City, Tennessee, United States

Coordinates

36.4608, -82.4899

Aircraft

Cessna 340

Registration

N4124Q

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Cincinnati → Columbia

Aircraft damage

Destroyed

Weather

VMC

Light

Night/Dark

NTSB number

ATL85FA079

3 people died.

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

THE ACFT WAS IFR AT 17000 FT FLYING THRU WX SIGMET AREA FOR SEVERE ICING WHEN THE PLT REQUESTED A DESCENT DUE TO AIRFRAME ICE AND TURBULENCE. DURING THE DESCENT THE PLT REPORTED SHUTTING DOWN THE RIGHT ENG. ON FINAL APCH FOR AN OFF-ARPT LANDING ATTEMPT THE ACFT STALLED AND SPUN TO GROUND CONTACT. CHUNKS OF ICE WERE FOUND NEAR THE WRECKAGE. POST IMPACT EXAM OF THE RIGHT ENG REVEALED CRACKS IN THE #2, #5 AND #4 CYLINDERS. THE #4 CYLINDER HAD BURNED THRU AT THE EXHAUST PORT. THE RIGHT MAGNETO HAD UNACCEPTABLE OUTER CASE FRACTURES WHICH WERE FILLED WITH A RUBBER LIKE SEALANT. THE DISTRIBUTOR BLOCK HAD EVIDENCE OF SEVERE DESTRUCTIVE ARCING AND CROSSFIRING. NO DOCUMENTATION OF COMPLIANCE WITH BENDIX SERVICE BULLETIN NO. 612 DEALING WITH INSPECTION OF THE MAGNETOS WAS FOUND. THE RIGHT ENG PROP WAS NOT IN THE FEATHERED POSTITION.

Quoted verbatim from the NTSB record.