Most Critical Injury:

Investigated By:

Local Time Time Zone

ries

r Medical Transport Flight:

ty:

Type of Aircraft

Aircraft Registration Number:

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178 N6688D 

/02/2002 Fatal 

cident NTSB 

1100 EDT 

2

Airplane 

No

port of this investigation or conducted a

y travel, and used data obtained from various

**

ime, a Beechcraft 58P, N6688D, was destroyed during

of engine power near Swanzey, New Hampshire. The

fatally injured. Visual meteorological conditions

ght plan was filed for the flight that departed

ampshire, destined for the Yeager Airport (CRW),
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 at 42 degrees, 52.00 minutes north longitude, 72

on of 606 feet msl.

lane single and multi-engine land, and instrument

viation Administration (FAA) third class medical

accumulated about 1,284 hours of total flight

airplanes.

ting Handbook and FAA Approved Airplane Flight

 was "Five (5) passengers and one (1) pilot."

 reveal any abnormalities with the engines or the

mpleted on February 4, 2002, at a total aircraft

t for the number 5 cylinder from the right engine,

hanged on August 6, 2002. The old oil filter was

178 

/02/2002 

cident 
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et prior to the main fuselage. A 32-inch section

rom the first tree strike. About 15 feet from the

ight wing was located, suspended in a tree. A

s found lying on the ground about 6 feet past the

 of the fallen tree was a 54-inch section of the

the left elevator, right wing aileron, a 60-inch

tank, and a 32-inch section of the outer right

ear assembly. About 50 feet beyond the nose gear

eet beyond the left engine propeller assembly was

 wing, vertical stabilizer, rudder, and a 40-inch

 attached to the fuselage. All flight control

ontal stabilizer had a 12-inch deep "u"-shaped dent

ard edge. Tree bark was observed in the dent

m their respective wing attachments, and sustained

examined. The top spark plugs on all six cylinders

t gray in color. The left and right magnetos were

 heat damage. The engine was rotated 1/2 turn, and

ection. No fuel was observed in the fuel manifold

ured about 3/4 inch from the bottom of the upper

was observed inside the fracture. The throttle

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/02/2002 

cident 
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t was aligned with the 10 degrees nose left

cal Examiner, Concord, New Hampshire, performed an

, Oklahoma City, Oklahoma conducted toxicological

right engine was forwarded to the Safety Board

rther examination.

port, the cylinder assembly consisted of a

lled on an ECI remanufactured barrel, which was

ors, Inc.

itiated in the root radius of the cylinder head

nder barrel. Indentations and displaced material

threads matched with the locations of protruding

The protruding material was located on the

nt with the folding over of a machining burr into

 defined as a lap.

f material defects, which may have contributed to

178 

/02/2002 

cident 
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dbook, or the FAA Approved Airplane Flight Manual,

nded and the inoperative propeller windmilling.

83-3), Transition to a Multiengine Airplanes,

erformance is not halved, but is reduced by

ower, but the drag increases considerably because

 carries the full burden alone. This leaves very

er to the propeller to produce thrust, but instead

ssion of the engine, the drag of the windmilling

 yaw toward the failed engine."

was 6,240 pounds.

cord, accomplished on March 13, 2001, was 4,406.83

t flight were calculated during the investigation.

data and assumptions:

rchased on the day of the accident. The

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/02/2002 

cident 
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0.1 pounds, and the airplane was beyond the forward

ne revealed a document detailing weight and balance

weights for seven occupants.

s in an airworthy condition. The pilot in command

whether that aircraft is in condition for safe

flight when unairworthy mechanical, electrical, or

rcraft must occupy an approved seat or berth with a

operly secured about him or her during movement on

e airplane owner's insurance company on September

178 

/02/2002 

cident 
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cturer: Model/Series:

es

ax Gross Wt. LBS Number of Engines:

Serial Number

rport Elevation

Ft. MSL

Runway Used Runway Length Runway Width

Rated Power:

178 

/02/2002 

cident 

488 NA 

TJ-242

6240 2

il TSIO20 32HP 
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City

Certificate Number:

State Date of Birth Age

Date of Last Medical Exam:

Glider Lighter

Than Air

Rotorcraft

Instrument

Actual Simulated

Night

178 

/02/2002 

cident 

On File On File On File 45 

ess On File 

aivers/lim. 07/2001 

243 1
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OF Distance From Accident Site

NM

Ft. AGL Condition of Light:

Direction From Accident Site

Deg. Mag.

Visibility: SM Altimeter: "Hg

Conditions at Accident Site:

Wind Gusts:

Aircraft Explosion

178 

/02/2002 

cident 

2 320 Day 

10 30.21 

Visual Conditions 

Ground 
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178 

02/2002 

cident