Bombardier has issued SB 604-52-007 for Challenger CL-600-2B16 models to address corrosion in the "lower structural elements of the passenger door". Bombardier states that purpose of this Service Bulletin, which effects serial numbers 5301 to 5665, is to remove the epoxy ramp and repair corrosion. The epoxy ramp around the MED, which has been found to deteriorate over time, can allow for moisture to enter which can lead to corrosion damage. Additional modifications include adding draining holes to allow access to facilitate scheduled inspections. On this particular door, corrosion was identified on the MED hinge, the forward and aft lower corners, the lower center channel and hinge fairings.

The epoxy ramp was removed as per the instructions to further assess the state of the corrosion damage and begin repairs. The deterioration of this epoxy is likely the source of the trapped moisture which contributed to the spread of the corrosion. Corrosion thrives under humid environments where deterioration of metal can occur relatively quickly. One of the best ways to prevent corrosion damage is to ensure the area in question is protected from moisture as much as possible. Sealant was added in select areas to further protect the area from moisture.

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Permaswaging is a specialized technique that is used in the aviation industry that involves making permanent repairs to hydraulic, water and fuel lines. But what exactly is Permaswaging? Pronounced "swedge", Permaswaging is a cold-working technique that involves using specialized dies to form one piece of metal around another. In aviation, Permaswaging (sometimes referred to as swaging) is mostly used in fluid systems where a permanent joint with metal to metal sealing is required. Permaswaging results in a mechanical connection between the tubing and fitting that will act as a permanent container for fluid such as hydraulic fluid. Permaswaging aims to produce a uniform reduction of a tube to fitting connection to tolerances that would not require welding or other sealing.

Properly Permaswaging lines involves access to specialized tooling as well as years of practice to provide this service correctly. SEAL Aviation has invested in the required tool kits and has decades of aviation experience providing Permaswaging services for aircraft owners and operators. Combined with our mobile capabilities, this uniquely positions SEAL Aviation to be the best choice for relocating hydraulic or other Permaswaging needs. SEAL Aviation will come to your location, anywhere in the world, to perform this service on your aircraft.

For a great example of how this flexibility benefits our customers, SEAL Aviation was called out to the customer's location in to assist the customer with Bombardier Service Bulletin 600-0764. This Service Bulletin details relocating the hydraulic system which requires swaging of new hydraulic lines. Bombardier has issued this AD to "address the failure of one of the brake accumulator screw caps/end caps, which could result in impact damage causing loss of both hydraulic systems No. 2 and No. 3, and the consequent loss of both braking and nose wheel steering, the potential for a runway excursion, and damage to the airplane." Having the tooling on-hand combined with our mobile capabilities made SEAL Aviation the perfect fit to assist with fabricating new hydraulic lines and relocating the hydraulic system. SEAL Aviation was successfully able to assist this AOG customer over the course of one weekend.

SEAL Aviation is a Part 145 repair station that operates a mobile company which has the capability to provide heavy structural repairs, fuel leak repairs, and non-destructive testing for your aircraft, anywhere in the world. SEAL Aviation is an FAA, EASA, Mexico authorized repair station and SEAL Aviation NDT Techs are SNT-TC-1A, NAS410, EASA and Cessna/Citation Certified. Click the button below to visit our website and request pricing.

SEAL Aviation was called offsite to the customer's location to assist with the removal of a Citation 560 Ultra wing bolt for a Phase 14 inspection. Other maintenance companies tried to assist with the removal of this bolt and failed. The customer reached out to SEAL Aviation due to our reputation for taking on advanced tasks that other aircraft repair stations cannot accomplish. Naturally, the technicians in the SEAL Aviation Structural Team were up to taking on this difficult repair.

Once on-site, it was determined by SEAL Aviation Structural Repair Technicians that the stubborn wing attach bolts would need to be reamed with specialized tooling to be removed. This is accomplished by custom machining a fixture that can be fastened to the ribs of the airframe. Once this custom fixture is in place, the wing attach bolt could be reamed safely.

The wing attach bolt on this Citation was stubborn but after a few attempts, the bolt was free and the customer could continue with their Phase 41 inspection. SEAL Aviation once again proves that when the going gets tough, SEAL Aviation finds a solution and makes it a reality for our customers. Our 'can do' attitude combined with decades of practical experience makes SEAL Aviation the best choice for complex aircraft repairs. Our mobile capabilities allow us to bring our expert technicians and tooling to your aircraft, anywhere in the world.

SEAL Aviation is a Part 145 repair station that operates a mobile company which has the capability to provide heavy structural repairs, fuel leak repairs, and non-destructive testing for your aircraft, anywhere in the world. SEAL Aviation is an FAA, EASA, Mexico authorized repair station and SEAL Aviation NDT Techs are SNT-TC-1A, NAS410, EASA and Cessna/Citation Certified. Click the button below to visit our website and request pricing.

While Performing Lear 45 Airworthiness Directive 2021-23-08 and Service Bulletin 45-57-13-1 Center Wing Inspection, SEAL Aviation identified corrosion on the center wing splice plate. This is a common area to find corrosion past repairable limits, which requires replacement of the forward and aft splice plate. SEAL Aviation can perform these repairs onsite at your hangar!

Who has time to wait for parts? SEAL Aviation has direct access to a large inventory of aircraft spares for many makes and models of aircraft, including Learjet parts. SEAL Aviation has the splice plates and fasteners in stock so we can perform this repair quickly for our customers. This enables us to perform complex structural repairs on Lear aircraft faster than most repair stations.

Speaking of quick repairs, our AOG customers depend on SEAL Aviation to perform structural repairs as quickly as possible to avoid operational interruptions. The SEAL Aviation Structural Repair Team performed this repair in coordination with Bombardier engineering on a tight timeline. SEAL Aviation utilized our decades of aircraft repair experience alongside our access to skilled manpower to meet the demands of our customer.

SEAL Aviation utilizes the vast experience of our technicians to provide full service repairs for your aircraft. SEAL Aviation Structural Repair Technicians have the capability to cold work fastener holes and well as provide roto-peening services at your location. Combine this with our ability to provide onsite Non-destructive Testing, makes SEAL Aviation the best choice to assist with AOG situations, no matter where your aircraft is located.

SEAL Aviation is a part 145 repair station that operates a mobile company that can provide heavy structural repairs, fuel leak repairs, and non-destructive testing for your aircraft, anywhere in the world. Visit our website to learn more or request pricing.