Cessna 172N N4829E

Summary

On 11 June 1993 at about 01:20 local time, a Cessna 172N registered N4829E, operated by Northern Colorado Air Charter, was involved in an accident near Livermore, Colorado, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

11 June 1993 at 01:20

Classification

Accident

Location

Livermore, Colorado, United States

Coordinates

40.8698, -105.3697

Aircraft

Cessna 172N

Registration

N4829E

Category

Airplane

Engines

1

Operator

Northern Colorado Air Charter

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Ft.collins → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Dusk

NTSB number

DEN93LA068

Nobody was injured.

A PARTIAL POWER LOSS WHEN THE ROCKER BOX FOR ONE CYLINDER DISENGAGED. A FACTOR WAS: UNSUITABLE TERRAIN FOR A FORCED LANDING.

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

Read the full NTSB narrative

WHILE ON A LOCAL AREA PERSONAL FLIGHT, THE ENGINE RPM DROPPED FROM 2,300 TO 1,400 RPM FOLLOWED BY ENGINE VIBRATION. THE PILOT ELECTED TO LAND ON THE ONLY ROAD IN THE AREA WHICH CONTAINED A 40 DEGREE RIGHT TURN ALONG THE LANDING ROLL PATH. AS THE AIRCRAFT NEGOTIATED THE TURN, THE RIGHT WING STRUCK A FENCE POST AND THE AIRCRAFT SPUN INTO A DITCH. EXAMINATION REVEALED A FAILURE OF THE RIGHT FORWARD CYLINDER VALVE ROCKER BOX EXHAUST STUD WHICH BACKED OUT AND PREVENTED THE INTAKE VALVE FROM WORKING PROPERLY.

Quoted verbatim from the NTSB record.