Waco RNF N11270

Summary

On 6 October 1990 at about 16:05 local time, a Waco RNF registered N11270, operated by McCluney, Cliff A., was involved in an accident near Lampasas, Texas, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

6 October 1990 at 16:05

Classification

Accident

Location

Lampasas, Texas, United States

Nearest airport

Lampasas Muni. (T28)

Coordinates

31.0600, -98.1807

Aircraft

Waco RNF

Registration

N11270

Category

Airplane

Engines

1

Operator

McCluney, Cliff A.

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

FTW91LA004

2 people had minor injuries.

THE FAILURE OF A CYLINDER INTAKE VALVE SPRING.

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

Read the full NTSB narrative

THE ENGINE LOST PARTIAL POWER AS THE PILOT TURNED CROSSWIND AFTER TAKEOFF, FOLLOWED B A COMPLETE POWER LOSS DURING THE TURN TO DOWNWIND. THE PILOT SET UP FOR A FORCED LANDING TO THE BEST AVAILABLE FIELD WHICH WAS COVERED WITH BRUSH AND TREES. JUST PRIOR TO TOUCHDOWN, THE ENGINE HAD A MOMENTARY SURGE OF POWER AND THEN QUIT AGAIN. DURING THE LANDING ROLL, THE LEFT MAIN LANDING GEAR COLLAPSED AND THE AIRPLANE NOSED OVER. INVESTIGATION REVEALED THAT THE NO. 6 CYLINDER INTAKE VALVE SPRING WAS BROKEN AND THE CYLINDER WAS RUNNING COLD. ADDITIONALLY, PARTICULATE CONTAMINATION WAS FOUND IN THE FUEL SYSTEM.

Quoted verbatim from the NTSB record.