Cessna 340A N60E

Summary

On 25 June 2018 at about 12:15 local time, a Cessna 340A registered N60E, operated by Little Dreams Aviation LLC, was involved in an accident near Orlando, Florida, United States. 4 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

25 June 2018 at 12:15

Classification

Accident

Location

Orlando, Florida, United States

Nearest airport

Orlando Executive (ORL)

Coordinates

28.5456, -81.3331

Aircraft

Cessna 340A

Registration

N60E

Category

Airplane

Year built

1979

Engines

2

Operator

Little Dreams Aviation LLC

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Orlando → Winston Salem

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR18LA179

Nobody was injured.

The pilot's delayed decision to discontinue the takeoff when confronted with abnormal acceleration and airspeed indication; the reason for the abnormal acceleration could not be determined based on the available information.

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

Read the full NTSB narrative

The pilot reported that engine start, run-up, and taxi were all normal in preparation for the personal flight. The pilot began the takeoff roll using the full length of the dry, paved 6,000-ft runway, but shortly thereafter he felt a "sudden lag." The maximum speed he observed on the airspeed indicator was 43 knots, and the airspeed indicator needle "seemed to be fluttering." He confirmed that the engine controls were properly set and then decided to discontinue the takeoff about halfway down the runway by reducing power and applying the brakes and spoilers to decelerate the airplane. The airplane did not appear likely to stop before overrunning the end of the runway, so the pilot steered the airplane to the right as it ran off the runway end. The airplane impacted and stopped in a culvert about 500 ft beyond the runway and sustained substantial damage to the fuselage nose. Postaccident examination of the airplane, airspeed indication system, and engines did not reveal any preimpact mechanical malfunctions or failures that would have precluded normal operation. Several months after the accident, the airplane was repaired, and engine test runs revealed two minor but unrelated turbocharger problems. One problem affected the left engine, and the other affected the right engine, but they did not manifest themselves concurrently. In each case, the affected engine did not develop full rpm, but the other engine did develop full rpm. The investigation was unable to determine whether these problems existed at the time of the accident takeoff. If they did exist, unless they occurred simultaneously, they would have manifested as a significant asymmetric thrust between the two engines, which would have been obvious to the pilot. The pilot did not report any shortcomings in engine rpm or such thrust asymmetry. The airplane was subsequently ferried to its destination, and both engines operated normally for that flight. Accident site review revealed that the airplane traversed a total distance of about 6,500 ft during its takeoff roll and stop. Calculations performed postaccident indicate that, with a normal acceleration to 43 knots, had the airplane continued at that speed, it would have taken 35 seconds to reach the halfway point of the runway, at which point the pilot would have had 3,000 ft remaining to stop from 43 knots, which should have been sufficient. The investigation was unable to determine the reason for the airplane not accelerating above 43 knots. However, the pilot's delay in aborting the takeoff when the airplane did not accelerate above 43 knots resulted in the runway overrun.

Quoted verbatim from the NTSB record.