The latest brouhaha in the aviation set is that the safety directive on Rolls Royce Engines–which are liable to ice up–does not ground the planes for repair, but instead has a repair date of 2011. The engines are in Boeing 777s, and have been acknowledged to be responsible for engines shutting down while in flight.

Two questionable parts do not require replacement until 2011.

Read the directive below:

SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Under certain ambient conditions, ice can accumulate on the walls of the fuel pipes within the aircraft fuel system, which can then be released downstream when fuel flow demand is increased. This released ice can then collect on the fuel-to-oil heat exchanger (FOHE) front face and limit fuel flow through the FOHE.

We are issuing this AD to prevent ice from blocking the FOHE, which could result in an unacceptable engine power loss, and loss of control of the airplane.

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NTSB Advisory : NTSB INVESTIGATING LOSS OF ENGINE POWER ON DELTA AIR LINES BOEING 777

NTSB Advisory
National Transportation Safety Board
Washington, DC 20594
December 18, 2008

NTSB INVESTIGATING LOSS OF ENGINE POWER ON DELTA AIR LINES BOEING 777

The National Transportation Safety Board is investigating an incident in which a Delta Air Lines Boeing 777 experienced an uncommanded engine rollback in the cruise phase of an intercontinental flight.

On November 26, 2008, at about 12:30 pm MST, in the vicinity of Great Falls, Montana, a 777-200ER (N862DA), operated by Delta Air Lines as Flight 18, en route from Shanghai to Atlanta, experienced an uncommanded rollback of the right (number 2) Rolls-Royce Trent 895 engine while at 39,000 feet in the cruise phase of flight. The crew executed applicable flight manual procedures and descended to 31,000 feet. The engine recovered and responded normally thereafter. The flight continued to Atlanta where it landed without further incident. None of the crew of 15 or 232 passengers was injured.

Flight data recorders and other applicable data and components were retrieved from the airplane for testing and evaluation. Both of the pilots have been interviewed. This event is preceded by another airline’s 777 equipped with Rolls-Royce Trent 895 engines, which experienced an uncommanded dual engine rollback while on final approach to London’s Heathrow International Airport on January 17, 2008, crashing short of the runway on airport property. The United Kingdom’s Air Accidents Investigation Branch (AAIB) is investigating that accident.

NTSB Senior Air Safety Investigator Bill English, who is serving as the U.S. Accredited Representative in the Heathrow accident investigation, is the Investigator in Charge of the Delta incident.

The AAIB, which has assigned an Accredited Representative to the Delta incident, is working closely with the NTSB to determine if there are issues common to both events. Parties to the investigation are: the Federal Aviation Administration, Boeing Commercial Airplanes, Eaton-Argotech, Delta Air Lines, and the Air Line Pilots Association.

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NTSB Media Contact: Peter Knudson (202) 314-6100 peter.knudson@ntsb.gov

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Ryanair Flight Returns to Warsaw Modlin Airport, Poland

Ryanair flight FR-4060 had to return and make an emergency landing at Warsaw Modlin Airport, Poland, on February 7th.

The Boeing 737-800 plane took off for Malaga, Spain, but had to return shortly afterwards after the crew suspected a tailstrike.

The plane landed back safely. All passengers and crew members remained safe.

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Malindo Air Flight Returns to Dhaka with Cracked Windshield

Malindo Air flight OD-163 had to return and make an emergency landing in Dhaka, Bangladesh, on June 27th.

The Boeing 737-800 plane took off for Kuala Lumpur, Malaysia, but had to turn back after the crew noticed a cracked windshield.

The plane landed safely. Everyone aboard remained unharmed.

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Yakutia Airlines Plane Rejects Takeoff After Tail Strike

Yakutia Airlines flight R3-4441 had to reject takeoff from Neryungri, Russia, on December 11th.

The Boeing 737-800 plane was accelerating to takeoff for Krasnoyarsk, Russia, when the crew rejected takeoff due to a tail strike.

The plane safely returned to the apron. All one hundred and two passengers and six crew members remained unharmed.

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Amsterdam-Bound KLM Flight Hits Turbulence; 4 Injured

KLM flight KL-622 encountered severe turbulence on the way to Amsterdam, Netherlands, on April 1st.

The Boeing 777-200 plane was flying from Atlanta, Georgia, when it hit turbulence that injured two passengers and two crew members.

The crew continued the flight to Amsterdam and requested medical assistance at the airport.

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Pakistan International Airlines Plane Makes Emergency Landing in Saudi Arabia

piaPakistan International Airlines flight PK-760 had to divert and make an emergency landing in Riyadh, Saudi Arabia, on November 11th.

The Boeing 777-200 plane heading from Jeddah, Saudi Arabia, to Lahore, Pakistan, was diverted after it lost cabin pressure.

The plane landed uneventfully. All passengers and crew members remained safe.

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