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Seaplane down off Miami Beach

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Seaplane down off Miami Beach

Old 19th Dec 2005, 19:20
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I'matightbastard
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Seaplane down off Miami Beach

Something on CNN at the moment but couldn't be sure if it was an amphib, floatplane or what. They got divers out checking. They said it happened about 15mins ago so not the 195 from Sunday.
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Old 19th Dec 2005, 19:25
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Dec 19 3:17 PM US/Eastern

MIAMI BEACH, Fla. - A propeller plane carrying at least 17 people crashed Monday off Miami Beach, and at least two people were killed, authorities said.

The plane went down shortly before 3 p.m.

"We're still trying to get people out of the water," said Javier Otero, Miami Beach Fire Department support services chief.

He said two people were confirmed dead.
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Old 19th Dec 2005, 19:27
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gotta link from the Miami Herald

Plane carrying 19 people crashes off Miami Beach; fatalitiesAssociated PressMIAMI BEACH, Fla. - A propeller plane carrying at 17 passengers and two crew members crashed Monday just off Miami Beach, and there were some fatalities, authorities said.
The Chalk's Ocean Airways plane crashed into the water shortly before 3 p.m., said Miami Beach Fire Department support services chief Javier Otero. He said there were two confirmed fatalities and some survivors.
"We're still trying to get people out of the water," Otero said.
Otero said the plane was one that regularly schedules flights to and from the Bahamas, but he did not know immediately whether the aircraft was incoming or outgoing.
Television helicopter footage showed a debis field in Government Cut, the channel that ships take into the Port of Miami past South Beach. Law enforcement boats and helicopters were in the area doing searches. The were joined by others in private boats, on Jet Skis and on surfboards.
Chalk's Ocean Airways was founded in 1919. Its floating planes take off in the water. Chalk's aircraft have been featured in TV shows like "Miami Vice."
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Old 19th Dec 2005, 19:58
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Chalk Airlines

They fly some old Gruman amphibs (Widgeon's?) as a shuttle to a casino in the Bahama's. They have being covered in several articles in Flying etc
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Old 19th Dec 2005, 20:04
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... Gruman amphibs (Widgeon's?)...

Grumman Mallards converted to turbine (PT6) power.
Witnesses (FWIW) report 'explosion' followed by wing failure.
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Old 19th Dec 2005, 20:36
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BBC: Seaplane crashes off Miami Beach

A plane carrying 16 people has crashed into water near Miami Beach in Florida, killing at least 12 people, US Coast Guard officials have said.

Fourteen passengers and two crew were on the seaplane, believed to fly regularly to and from the Bahamas.

The craft crashed into Miami's main shipping channel shortly before 1500 local time (2000 GMT).

Scuba divers, speedboats and helicopters are combing the crash site, trying to rescue any survivors.

Witnesses told local television that the airplane seemed to explode in the sky before it fell into Government Cut, the entry to the Port of Miami.

"There was a huge explosion in the sky, a big ball of smoke," eyewitness Frank Amadeo told local television, Reuters reports.

"It just sort of spiralled downward," he added.

The propeller-driven Chalk's Ocean Airways plane, equipped with pontoons for taking off and landing on water, crashed just off the southern tip of Miami Beach.
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Old 19th Dec 2005, 21:08
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cnn.com has the video of the rescue.
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Old 19th Dec 2005, 21:53
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http://www.airliners.net/open.file?id=955591&WxsIERv
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Old 19th Dec 2005, 22:04
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19 Said Killed in Plane Crash Off Miami
By LAURA WIDES-MUNOZ, Associated Press Writer 12 minutes ago

A propeller-driven seaplane carrying 20 people crashed off Miami Beach within sight of the city's high-rises Monday, killing at least 19 of those aboard, authorities said. Witnesses said the plane blew apart in the air, and the FBI joined in the investigation.

Scuba divers and rescuers in speedboats struggled to reach the victims but found no sign of survivors as evening fell.

The Chalk's Ocean Airways plane — a twin-engine Grumman G-73T Turbine Mallard — went down around 2:30 p.m. after taking off from Miami for the island of Bimini in the Bahamas, crashing in a narrow channel used by cruise ships, the Federal Aviation Administration said.

The Coast Guard said 19 bodies were found. The plane was carrying two crew members and 18 passengers, including three infants, authorities said.

Because of witness reports of an explosion before the plane went down, the FBI sent agents to assist in the investigation, but there was no immediate indication of terrorism or sabotage, said Judy Orihuela, spokeswoman for the FBI's Miami field office.

"It's too soon to say whether we are going to get involved," Orihuela said. "We're just going to check it out."

Sandy Rodriguez, 14, said he saw the plane flying low with white smoke trailing from it and flames coming from the bottom. The right wing then fell off as the plane went down behind a condominium tower on Biscayne Bay in Miami Beach, he said.

"It exploded in the air and one of the wings flew out of there. The other part of the plane was on fire and it just went straight down," said Maurice D'Giovianni, 42, a surfer who was in the water at the time.

Coast Guard spokesman Dana Warr also saw the crash from the Coast Guard office on Government Cut. "Everything looked normal, I saw the aircraft take off like it does every other times. I didn't think anything of it when I saw the black smoke from the pier, until I then heard the Coast Guard alarms go off," he said.

The National Transportation Safety Board sent a team to investigate.

The plane went down in Government Cut, a channel that cruise ships and freighters take past South Beach into the Port of Miami. The channel is up to 30 feet deep near the crash site, but parts of the plane could be seen in shallower areas.

The skies were cloudy, but there was no rain or lightning in the area at the time of the crash.

Coast Guardsmen and emergency workers wearing protective suits hauled bodies up from rescue boats, rushing to find victims before darkness fell. Law enforcement speedboats, divers and helicopters took part in the search and were joined by others in private boats, on personal watercraft and on surfboards.

Chalk's Ocean Airways flies between Miami and the Bahamas, using planes that take off and land on the water. Chalk's aircraft have been featured in TV shows such as "Miami Vice." Its seaplanes take off in view of the port and the multimillion-dollar homes that dot islands in the bay.

Founded by Arthur "Pappy" Chalk in 1919, the airline thrived during Prohibition, taking bootleggers, their customers and customs agents to Bimini. According to the airline, its most famous regular passenger was Ernest Hemingway, who flew to Bimini to go big-game fishing.

One of its planes was hijacked to Cuba in 1974 and the company has since had a policy of not carrying enough fuel to get to Havana.

Two years later, the airline was sold to Resorts International, which owned properties on Paradise Island. Donald Trump bought it in 1988 and sold it a few months later to Merv Griffin. The owner as of 1995 was Seth Atwood of United Capital Corporation of Illinois/Atwood Enterprises.

According to its Web site, Chalk's operates 17-passenger Turbine Mallards.

According to FlightSafe Consultants' Airline Safety Web site, Chalk's has had no known fatal accidents. Similarly, the NTSB database shows no fatal accidents for Chalk's since 1982, when the database started.

The airline had no comment after the crash.
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Old 19th Dec 2005, 23:45
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There´s a pic of the aircraft just before it crashes, seem pretty badly on fire, see http://edition.cnn.com/2005/US/12/20...ash/index.html
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Old 20th Dec 2005, 02:02
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Christ, it looks like it was shot down, it wasn’t of course, but the early video I saw showed a wing on the breakwater and it showed definite smoke and fire damage.

How horribly sad.
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Old 20th Dec 2005, 03:17
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First thoughts on the Chalk Mallard accident is that those PT6 turboprops wouldn't take kindly to the maritime operating environment. Think sulfidation of turbine blades. You wouldn't need a large drink of water down an intake, just the relentless attack of salt to eventually weaken a blade or its fir-tree root. It's like rust.
I'll mount a photo of a sulfidated blade if I can find one. The only protection is to run a rinse-rack using very clean water. P-3 Orions and S-3 Vikings do that all the time at NAS rinse-racks (aka birdbaths). If a PT6 high-revving turbine wheel let go, or even just spat a blade and achieved a nasty imbalance, it could probably take the whole wing with it. That scenario accords with what's been reported thus far (smoky engine + explosion + wing separation).
Sulfidation, if not addressed continually, can create real havoc with a turbine engine, particularly if it's got a reverse pitch capability to help induce and ingest the salty marine air.

AFAIK all the Allison explosions were similar sudden events.... and wholly uncontained. The last one on my last squadron was anyway.
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Old 20th Dec 2005, 03:30
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PT6's are probably the most reliable turbine out there with a MTBF allowing Commercial IFR SE flight, please don't hijack. Don't know the frequency, but compressor washes and borescopes are mandatory. BTW there was a Beech 99 in AK that lost a blade. tore the engine off the mounts. The chances of a Grumman product losing a wing without fire or other ancillary cause is quite slim
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Old 20th Dec 2005, 03:33
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Sulfidation Rotting of turbine blades

Photo 1.
Sulfidation of number 1 GP turbine

During the examination of the engine, it was installed in an approved engine test facility where a full test was attempted; however, the engine vibrated excessively and the test was aborted. Some smoke was evident during the spool down of the engine. The engine was then disassembled for inspection. Of the 38 blades on the number 1 gas producer (GP) turbine, 29 were damaged significantly. One was broken off close to its root, and most of the others were missing pieces. Examination of the remaining fracture surface of the blade that broke close to its root showed indications of a progressive failure (fatigue crack). The other fracture surfaces showed failure by overload. More detailed examination of the GP turbine blades showed extensive sulfidation corrosion1 (see Photo 1). The blade surfaces were flaking and there were fatigue cracks in many of the blades. The turbine first-stage nozzle labyrinth seal was damaged and the outer fibreglass packing was partially missing. There was soot at the joint between the turbine nozzle and number 1 GP turbine and thick, black, wet soot around the labyrinth seal and on the turbine coupling.

On 10 February 2000, Rolls-Royce Allison issued a Commercial Service Letter, Hot Corrosion-Sulfidation, describing hot corrosion (sulfidation) and suggesting that operators look for it. However, no periodic maintenance inspection was directed by Transport Canada (TC) and none was implemented by the operator with regard to sulfidation corrosion.

Engine compressor washing is recommended in corrosive and dirty environments. It is also prescribed when engine performance has depreciated, as noted from power assurance checks. However, there has been concern that some tap water can in itself be corrosive. Operators rarely do compressor washes when their helicopters are operating away from a salt environment. They will wash compressors when they can see dirt building up at the air intake, or when an engine is performing below specifications. It is not clear if compressor washing effectively cleans the GP turbine wheel.
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Old 20th Dec 2005, 04:16
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OVERTALK: You mentioned catastrophic failures of Allison engines.

A C-130B of the AFRES Squadron at Colorado Springs, CO, lost a plane and crew in the 90s. An engine lost a turbine blade, which might have sliced straight into the left wing, and into a fuel tank.

There was too little time to get to a low enough altitude and airport before the wing exploded. At least there seem to have been no passengers onboard.

Last edited by Ignition Override; 21st Dec 2005 at 03:34.
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Old 20th Dec 2005, 04:28
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Not sure that the PT6 and sulfidation of the blades is an issue here...there are several companies, most notably Harbour Air and West Coast Air, based in the harbour in CYVR that use DHC-3t and DHC-6 products on a daily basis, and have done so for many (20+) years. The engines go through a compressor wash every day. I'm sure if they had a problem with turbine wheels letting go, then Transport Canada wouldn't be letting them fly single-engined (DHC-3t) over what amounts to open water...nor would the companies expose themselves to that kind of liability. 'Course, Chalk's might not wash evey day?
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Old 20th Dec 2005, 04:41
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One of the Chalks pilots told me a few months ago that the company had had a few engine failures in the last year! Adequately maintained PT6 turboprops have proved reliable in the maritime environment. Given that, and his comments, it will be interesting what final conclusions are drawn.

We don't wish these things on anyone, and yet we may wish someone else was flying....
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Old 20th Dec 2005, 11:56
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Video of the plane crashing into the sea with the trailing burning wing can be seen on
http://www.cnn.com/2005/US/12/20<br ...ash/index.html

Look for the link to a 1:56 minute clip titled "Witnesses Recount Plane's Final Plunge".
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Old 20th Dec 2005, 12:04
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One would have to speculate pretty far on ones imagination, to suggest that a turbine blade failure could tear off a wing.

The historical data simply does not support it and neither does rumors nor hearsay.
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Old 20th Dec 2005, 12:27
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Jet engine corrosion

I flew Folland Gnats in the 60s at a seaside location in North Wales. I recall a procedure called a LIX wash whereby some anti corrosion fluid was sprayed down the engine, while it was running, about once a week. I don't recall any corrosion induced engine failures; this was the Bristol Orpheus engine.
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