Piper PA-22-108 N4505Z

Summary

On 4 January 2014 at about 01:49 local time, a Piper PA-22-108 registered N4505Z was involved in an accident near Forsyth, Missouri, 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

4 January 2014 at 01:49

Classification

Accident

Location

Forsyth, Missouri, United States

Coordinates

36.6825, -93.1044

Aircraft

Piper PA-22-108

Registration

N4505Z

Category

Airplane

Year built

1960

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Sullivan → Branson

Aircraft damage

Substantial

Weather

VMC

Light

Night

NTSB number

CEN14LA112

Nobody was injured.

The pilot's improper flight planning, which resulted in a total loss of engine power due to fuel exhaustion.

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

Read the full NTSB narrative

The pilot reported that, while in cruise flight, the airplane experienced a total loss of engine power about 8 miles from the intended destination. The pilot was unable to restart the engine, and he subsequently ditched the airplane in a lake. A postaccident examination of the engine did not reveal any mechanical anomalies that would have prevented normal operation. No fuel was found in the fuel system during the postaccident examination; however, the airplane had been submerged for nearly 1 week before it was recovered from the lake. Postaccident performance calculations indicated that it is likely that the engine lost power due to fuel exhaustion during the accident flight. Although the pilot reported that he had completed preflight planning calculations (the actual paperwork was lost during the accident), the investigation determined that the wind aloft values that the pilot likely used in his preflight planning calculations were significantly different from the actual wind aloft values. As a result, the airplane's actual ground speed was significantly less than what the pilot would have anticipated. The pilot also reported that he completed the accident flight at less than 65-percent engine power, which would have increased the length of the flight and the amount of fuel used during it when compared to higher engine power settings; the available cruise performance charts lacked true airspeed and engine speed data for operating below 65-percent engine power. Therefore, the pilot could not have estimated the total flight time and fuel required for the accident flight with a high level of accuracy. Additionally, the pilot reported that the mixture control cable had fractured during a previous flight and, to continue his cross-country trip, he safety-wired the carburetor mixture control arm in the full-rich position. As a result, the pilot was unable to properly lean the fuel mixture during the accident flight; however, it is unknown to what extent the pilot planned for this condition. Further, the pilot made an unplanned stop at an airport located along his planned route of flight. The additional fuel consumed during this unplanned stop (taxi, engine run-up, takeoff, and climb to cruise altitude) would have further reduced the amount of fuel available to complete the accident flight.

Quoted verbatim from the NTSB record.