Beechcraft 35-B33 N9591Y

Summary

On 21 May 2000 at about 01:49 local time, a Beechcraft 35-B33 registered N9591Y, operated by Glendale Aviation, was involved in an accident near Boulder City, Nevada, United States. 3 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

21 May 2000 at 01:49

Classification

Accident

Location

Boulder City, Nevada, United States

Coordinates

35.9891, -114.8103

Aircraft

Beechcraft 35-B33

Registration

N9591Y

Category

Airplane

Engines

1

Operator

Glendale Aviation

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Glendale → Las Vegas

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX00LA202

Nobody was injured.

The fracture and separation of the oil pressure line fitting, which resulted in a loss of oil and an oil starvation failure of the engine.

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

Read the full NTSB narrative

The airplane collided with a berm during a forced landing following a catastrophic engine failure as the airplane descended toward the destination airport. The pilot reported that the flight was uneventful until they were preparing to start a descent over Lake Mead. Suddenly a loud 'pop or clunk' noise came from the engine compartment and the engine began to vibrate and run roughly, then quit altogether. This was accompanied by a large amount of smoke. The pilot setup for a landing on a paved model airplane field and landed successfully; however, he could not stop the airplane prior to colliding with a berm and collapsing the landing gear. Following recovery of the aircraft, the engine was examined by an FAA airworthiness inspector. A large hole was observed in the upper left rear engine case in the area of the Nos. 1 and 2 connecting rods. The No. 2 connecting rod had separated from the crankshaft with the journal end severely peened and damaged. The rod end was protruding from the hole in the case. The No. 2 bearing insert was destroyed, with heat discoloration noted on the journal saddle. The corresponding portion of the crankshaft was also heat discolored and scored. The inspector observed that the oil pressure line from the engine to the Hobbs meter pressure switch was broken at the switch's fitting. Oil was noted covering the engine compartment area around the broken fitting.

Quoted verbatim from the NTSB record.