Sunday, July 22, 2012

Yamokoski Glastar, N4970Y: Accident occurred July 22, 2012 in Chicago, Illinoios

http://registry.faa.gov/N4970Y

http://www.airport-data.com/aircraft/photo

NTSB Identification: CEN12LA470
 14 CFR Part 91: General Aviation
Accident occurred Sunday, July 22, 2012 in Chicago, IL
Probable Cause Approval Date: 12/19/2012
Aircraft: YAMOKOSKI WILLIAM GLASTAR, registration: N4970Y
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot was on a cross-country flight in an experimental airplane when the engine began to “race.” The pilot tried to reduce power by adjusting the throttle, but the engine and propeller were unresponsive. He then made a forced landing to a soft field, and the airplane nosed over. Examination of the automotive engine revealed that the spline-shaft and adapter gears in the reduction gearbox were worn, which resulted in the gearbox's failure. According to the pilot, the gearbox was not a regularly inspected item for this particular engine/gearbox combination. At the time it failed, the gearbox had accrued 247 total hours since new.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

Failure of the automotive engine's reduction gearbox while in cruise flight.

On June 22, 2012, at 1330 central daylight time, an experimental-amateur built Yamokoski Glastar was substantially damaged after it made a forced landing to a field in Chicago, Illinois. The private pilot/owner/builder sustained minor injuries. No flight plan was filed for the flight that departed Wittman Regional Airport (OSH), Osh Kosh, Wisconsin, around 1200 and was destined for Southwest Michigan Regional Airport (BEH), Benton Harbor, Michigan. Visual meteorological conditions prevailed for the personal flight conducted under 14 Code of Federal Regulations Part 91.

The pilot said he was following the shoreline back to Michigan when he heard and felt two "thumps" from the engine compartment. Approximately 10 seconds later, the pilot heard another thump and the engine RPM began to race. The pilot tried to reduce power by adjusting the throttle, but the engine and propeller were unresponsive. The pilot made a forced landing to a soft field and the airplane nosed-over damaging the right wing strut and the vertical stabilizer.

Examination of the automotive engine revealed that the spline-shaft and adapter gears in the reduction gearbox were worn, which caused the gearbox to fail. The pilot reported that the gearbox was not a regularly inspected item for this particular engine/gearbox combination. The gearbox was installed new and had only accrued 247 hours at the time of the accident.


 NTSB Identification: CEN12LA470 
 14 CFR Part 91: General Aviation
Accident occurred Sunday, July 22, 2012 in Chicago, IL
Aircraft: YAMOKOSKI WILLIAM GLASTAR, registration: N4970Y
Injuries: 1 Minor.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed.


On June 22, 2012, at 1330 central daylight time, an experimental-amateur built Yamokoski Glastar was substantially damaged after it made a forced landing to a field in Chicago, Illinois. The private pilot/owner/builder sustained minor injuries. No flight plan was filed for the flight that departed Wittman Regional Airport (OSH), Osh Kosh, Wisconsin, at an undetermined time and was destined for Southwest Michigan Regional Airport (BEH), Benton Harbor, Michigan. Visual meteorological conditions prevailed for the personal flight conducted under 14 Code of Federal Regulations part 91.

The pilot said that he was following the shoreline back to Michigan, when the engine began to run rough. He made a forced landing to a soft field and flipped over. Examination of photographs taken by emergency personnel revealed that the right wing strut was bent and the vertical stabilizer was crushed. The pilot reported that there was approximately 14 gallons of fuel on board at the time of the power loss.

The airplane and engine were retained for further examination.

 
FAA IDENTIFICATION
  Regis#: 4970Y        Make/Model: EXP       Description: EXP- GLASTAR
  Date: 07/21/2012     Time: 1935

  Event Type: Incident   Highest Injury: None     Mid Air: N    Missing: N
  Damage: Unknown

LOCATION
  City: CHICAGO   State: IL   Country: US

DESCRIPTION
  AIRCRAFT LOST POWER AND CRASHED IN A FIELD FLIPPING UPSIDE DOWN. CHICAGO, IL

INJURY DATA      Total Fatal:   0
                 # Crew:   0     Fat:   0     Ser:   0     Min:   0     Unk:   1
                 # Pass:   0     Fat:   0     Ser:   0     Min:   0     Unk:    
                 # Grnd:         Fat:   0     Ser:   0     Min:   0     Unk:    


OTHER DATA
  Activity: Unknown      Phase: Landing      Operation: OTHER


  FAA FSDO: LINCOLN, NE  (CE09)                   Entry date: 07/23/2012 


The pilot of a plane was on his feet and able to talk to emergency crews after a lakefront crash on the city's southeast side Sunday afternoon. The kit built plane went down around 1:30 a.m. The pilot suffered head injuries and was taken to the hospital in fair condition. He was flying from Oshkosh, Wisconsin to Benton Harbor, near his home in St. Joseph, Michigan. 

A plane flipped over when the pilot tried to land on a marshy area on the lakefront at 93rd Street on July 22, 2012.
 (Credit: Chicago Fire Department)



The pilot of a small, experimental plane was injured Sunday afternoon when the plane he landed in a marshy area on the lakefront on the South Side flipped over as its nose stuck into the mud.

The unexpected landing about 1:30 p.m. at 93rd Street and the lakefront, according to Fire Media Affairs Chief Joe Roccasalva.

The plane was headed from Oshkosh, Wisconsin to Benton Harbor, Michigan, when the pilot attempted to land in the marshy area, Roccasalva said.

Roccasalva described the spot where the plane landed as a "dried-up marshy area."

As the plane landed its "front nose dug into the dirt, and it flipped," Roccasalva said. The plane was upside down, an FAA spokesman said.

The pilot was taken in fair to serious condition to Northwestern Memorial Hospital, Roccasalva said. He suffered "minor injuries," according to the FAA spokesman. No one else was onboard the plane at the time.

The fixed wing, single-engine plane, considered an "experimental" aircraft, was manufactured in 2002, according to the FAA. It is registered to William Yamokoski, of St. Joseph, Michigan, according to FAA records.

Following the emergency landing of a small experimental plane near Peru, Illinois last weekend, an FAA official noted that "this time of year you're going to see" more experimental aircraft across northern Illinois, because of the Experimental Aircraft Association's annual Fly-In Convention, held in Oshkosh, Wisconsin July 23-29.  


Story and photo:   http://www.myfoxchicago.com

http://dms.ntsb.gov/aviation/AccidentReports/ku3znaqycm1xrm55fym22z451/W07222012120000.pdf

 Previous accident report: 
NTSB Identification: CHI05CA236.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Sunday, August 21, 2005 in Marcellus, MI
Probable Cause Approval Date: 06/28/2006
Aircraft: Yamokoski Glastar, registration: N4970Y
Injuries: 1 Uninjured.

The experimental amateur-built airplane sustained substantial damage when the airplane nosed over on impact with high vegetation and terrain during a forced landing following an in-flight loss of engine power. The pilot stated, "At first sign of [decreased] power, turned in direction of nearest airport. Altitude was about [2,800 feet]. Ran fuel selector through all positions; no improvement noted. Determined nearest airport unreachable. Found empty field and directed airplane toward it. Landed short in field [with] tall corn. Aircraft slowed, nose dug in, flipped forward onto its back." An examination of the wreckage did not reveal any pre-impact anomalies.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

The in-flight loss of engine power during cruise for undetermined reasons and the unsuitable terrain the pilot encountered during the forced landing. A factor was the tall corn he encountered.


 CHICAGO (STMW) – A pilot was injured Sunday afternoon when the plane he landed in a marshy area on the lakefront on the South Side flipped over as the plane’s nose stuck into the mud.  The incident happened about 1:30 p.m. at 93rd Street and the lakefront, according to Fire Media Affairs Chief Joe Roccasalva.

The plane was headed from Oshkosh, Wisconsin to Benton Harbor, Michigan, when the pilot attempted to land in the marshy area, Roccasalva said.

Roccasalva described the spot where the plane landed as a “dried-up marshy area.”

As the plane landed its “front nose dug into the dirt, and it flipped,” Roccasalva said.

The pilot was taken in fair to serious condition to Northwestern Memorial Hospital.

Story and photo:   http://chicago.cbslocal.com


 A pilot was injured Sunday afternoon when the plane he landed in a marshy area on the lakefront on the South Side flipped over as the plane’s nose stuck into the mud.  

 The incident happened about 1:30 p.m. at 93rd Street and the lakefront, according to Fire Media Affairs Chief Joe Roccasalva.

The plane was headed from Oshkosh, Wisconsin to Benton Harbor, Michigan, when the pilot attempted to land in the marshy area, Roccasalva said.

Roccasalva described the spot where the plane landed as a “dried-up marshy area.”

As the plane landed its “front nose dug into the dirt, and it flipped,” Roccasalva said.

The pilot was taken in fair to serious condition to Northwestern Memorial Hospital.


Story:    http://www.suntimes.com

The pilot of a small plane was able to stand and talk to emergency crews after crashing a single-engine Cessna near the lakefront on the Southeast Side, police said. 

Calls started coming in about 1:37 p.m. about the crash of what's believed to be a single-engine plane near 9500 S. Crilly Drive, near a Chicago Police heliport, said Chicago Police Department News Affairs Officer John Mirabelli said.

The pilot appeared to be a man in his mid 40s or 50 who was standing outside the plane when emergency crews got there, according to Chicago Fire Department spokesman Joe Roccasalva.

“He was standing and talking,’’ Roccasalva said.

The victim suffered head injuries and paramedics were still examining him on the scene as of 2:05 p.m., but he is expected to be taken to Northwestern Memorial Hospital in fair condition, Roccasalva said.

No one else was inside the aircraft, a single-engine Cessna, which was in one piece, lying upside down in a marsh.

The man had taken off from Oshkosh, Wisconsin and was headed to Benton Harbor, Michigan when the crash occurred, Roccasalva said.

An aircraft crashed on land near Calumet Park, according to U.S. Coast GuardPetty Officer Michael Cope.

“It’s not in the water,’’ Cope said of the plane. 


Story:    http://www.chicagotribune.com

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