Cessna 170B N8339A

Summary

On 19 July 2009 at about 15:00 local time, a Cessna 170B registered N8339A, operated by Ganim Rose B, was involved in an accident near Mahwah, New Jersey, United States. One person was on board and one was seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

19 July 2009 at 15:00

Classification

Accident

Location

Mahwah, New Jersey, United States

Nearest airport

Greenwood Lake Airport (4N1)

Coordinates

41.1083, -74.1633

Aircraft

Cessna 170B

Registration

N8339A

Category

Airplane

Engines

1

Operator

Ganim Rose B

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Westfield → Mahwah

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ERA09LA409

1 person was seriously injured.

A loss of engine power due to the failure of the No. 1 cylinder thru bolt hold down nuts due to corrosion.

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

Read the full NTSB narrative

During a cross-country flight, the airplane’s engine began to vibrate heavily, lost all power, and the pilot executed an emergency landing in a field. During the landing roll, the airplane impacted a hill, and sustained substantial damage. On a previous flight, the pilot recalled a vague vibration while en route. A mechanic was unable to identify the source of the vibration, and a "no defects noted" statement was entered into the logbook after various component checks. Examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that the No.1 cylinder revealed that two thru bolt nuts were loose. Two of the other bolts were sheered off, and one was missing. The threads on the thru bolt, with the missing nut, were rusted.

Quoted verbatim from the NTSB record.