Know-How: What you should know about… Recovery

Aircraft recovery – a highly underestimated risk

News report: “Authorities confirmed that following an off runway incident that occurred at 10:20 local, the airport will be closed until the aircraft can be recovered.“

The pressure is on, a runway is closed and incoming aircraft are being diverted. A solution is needed straight away. These kind of situations can happen at any airport around the world. A good preparation and planning are required to reduce the impact and to resume safe operations as soon as possible.

An average of two to three aircraft cause runway interruptions around the globe on a weekly basis. Some of these runway incidents have kept the affected airport’s operations closed for almost a week. These numbers are reason enough to investigate how an aircraft recovery plan can turn a major incident into a minor headache for you.

Only when the aircraft is removed and the runway is reopened for incoming and departing flights, the runway once again generates profits for the airport.

Investigations established that the duration of a runway closure is determined by three parameters: A working recovery plan and trained personnel are needed in addition to adequate and sufficient recovery equipment.

The cost resulting from a single instance of having to recover a demobilized aircraft are astronomical and are, contrary to the aircraft, non-recoverable. Even seemingly minor incidents create major challenges and could cause airport operations to come to a halt. Regardless of the complexity of the situation, losses for the airports and airlines can quickly run into the millions, making the safe and speedy removal of the demobilized aircraft essential.

The special task force - IATA ARTF

This group of professionals meets periodically each year and take on a variety of specific issues relating to effective aircraft recovery operations. In 2008 ARTF, the Aircraft Recovery Tasks Force, completed a number of milestones by delivering an analysis and recommendations for equipment packages for the A-380.

The ARTF comprises experts from airports, airlines, aircraft manufacturers, recovery specialists, and tooling manufacturers. The ARTF provides guidance concerning aircraft recovery. They form collaborations with OEMs to develop practical and safe aircraft recovery procedures that minimize both secondary damage to the aircraft structure as well as exposure to health and safety risks. The ARTF also cooperates with equipment manufacturers and makes recommendations for the development of new recovery tools.

Access to shared recovery equipment: The International Airlines Technical Pool (IATP)

The leading airlines maintain aircraft recovery kits and personnel to deal with demobilized aircraft recovery incidents. Many other airlines have access to recovery equipment through their membership in the International Airlines Technical Pool (IATP). It is however frequently the case that once an incident has occurred, it is extremely difficult to arrange the timely deployment of this equipment to the affected airport. IATP members currently have 12 of these recovery kits available at strategic locations around the world. These stand ready to be airlifted to the scene of an accident. A recent addition has been Qatar Airways, with a brand new kit capable of handling the Airbus A380.

Worldwide recovery kit locations

Airline Kit Location Coverage Area
Air France Paris - Orly Europe 1 & 2
Air India Mumbai Middle East & Indian subcontinent
American Airlines Chicago O‘Hare
Los Angeles
North America central
North America western
British Airways London - Heathrow Europe 1 & 2
Delta New York JFK North America eastern
Japan Airlines Tokyo - Narita Asia eastern
Qantas Sydney Australia
Qatar Doha Middle East & Indian subcontinent
South African Airways Johannesburg Africa
TAM Sao Paulo South America
United Airlines Honolulu North Pacific

source: IATP

Who should be prepared? Only the airlines?

Luckily, most airports never have to participate in the recovery of a large commercial airplane that has run off the runway, is buried in mud with broken landing gear, or even worse. At most airports around the world, recovery operations are the responsibility of the operator of the affected aircraft. It is however in the airport’s best interest to assist in a speedy recovery and resume normal flight operations as soon as possible.

The increasing occurrence of recovery incidents and the awareness of great financial losses cause a growing number of airport operators to realize the potential financial ramifications of a demobilised aircraft incident. The need to develop their own ‘organic’ recovery capability and to support the airlines in their recovery efforts is becoming apparent. An increasing number of airports is now in the process of setting up their own Airport Recovery Teams as well as equipment.

What is the role of OEMs?

Quick and decisive action is crucial for the effective recovery of demobilized aircraft. Boeing for example provides comprehensive, integrated local assistance in the recovery of a demobilized or damaged Boeing airplane wherever in the world it is located. Requests for assistance are directed to Boeing Field Service representatives. The recovery support includes diagnosis, repairs, logistics, parts procurement, certification issues, and other services as required for the specific recovery situation at hand. Boeing’s goal is to assist the airline operator in returning the aircraft to service with as little disruption to the airline’s schedules as possible.

Planning for aircraft recovery missions: HYDRO recovery equipment

Our objective is to enable the recovery of aircraft without causing any secondary damage and to clear runways and taxiways in order to keep ongoing flight operations on schedule. Airlines and airports are recommended to be prepared and have the necessary equipment ready for deployment:

Recovery axle jacks:

The HYDRO RL-series jacks are mainly used for lifting in recovery situations. The biggest RL-axle jack, the cantilever type, has a lifting capacity of 100 t and is suitable for the A380. Axle jacks of the RL-series are frequently used for recovery missions, when an aircraft is on bare rims and the jacking point of the landing gear isn’t accessible for regular axle jacks.

Recovery tripod jacks:

The HYDRO RJ-series tripod jacks are used for the recovery of aircraft. The biggest model can be used for A380 recovery, with a lifting capacity of 165 metric tons. The closed height is 1.77m, while the maximum height of the recovery jack in extended position is 6.36 m.

Debogging kits:

Debogging kits are used to pull an aircraft back on the runway. They are usually mounted at the main landing gears. It is recommended to use the debogging kit in combination with a load limiter. This mechanical load disconnection is resettable, with no need to replace destroyed parts after max. traction power. It is only available from HYDRO.

Recovery dolly:

The U15 recovery dolly can be used for aircraft with flat tyres or damaged undercarriage. It allows for the rapid recovery of aircraft types up to 15 metric tons wheel load that have become stuck on runways or taxiways. The recovery dolly is used to recover a demobilized aircraft quickly and carefully while minimizing any potential damage to the aircraft. It can be operated by a single person, which saves time and money.

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