@aviationrepair.bsky.social
This is a hex chrome plated valve housing. Once fully assembled, it is part of the A320 high pressure bleed air system. Modern aircraft (except B787) use bleed air for cabin pressure and temperature control. Imagine that, your comfort, and ability to absorb oxygen are enabled by hex chrome plating.
February 3, 2026 at 12:50 AM
This is a hex chrome plated valve housing. Once fully assembled, it is part of the A320 high pressure bleed air system. Modern aircraft (except B787) use bleed air for cabin pressure and temperature control. Imagine that, your comfort, and ability to absorb oxygen are enabled by hex chrome plating.
Hard chrome plated ducting sleeves used on 757s & 767s require +/- 0.001" precision. That is 1/4 the thickness of paper. Chrome is the only repair technology available. Repair is much more efficient than replacement and it enables huge carbon (Climate!) benefits in addition to the financial savings.
January 28, 2026 at 5:00 PM
Hard chrome plated ducting sleeves used on 757s & 767s require +/- 0.001" precision. That is 1/4 the thickness of paper. Chrome is the only repair technology available. Repair is much more efficient than replacement and it enables huge carbon (Climate!) benefits in addition to the financial savings.
Another flight critical thrust reverser part chrome plated in California. This from the A319, A320, A321 family. Every major narrow-body aircraft type in the world requires chrome plating. With no technological alternative, CARB has banned repair of this part. California is 2nd in US tourism $$.
January 23, 2026 at 8:24 PM
Another flight critical thrust reverser part chrome plated in California. This from the A319, A320, A321 family. Every major narrow-body aircraft type in the world requires chrome plating. With no technological alternative, CARB has banned repair of this part. California is 2nd in US tourism $$.
Another flight critical thrust reverser part chrome plated in California. This from the A319, A320, A321 family. Every major narrow-body aircraft type in the world requires chrome plating. With no technological alternative, CARB has banned repair of this part. California is 2nd in US for tourism $.
January 23, 2026 at 8:08 PM
Another flight critical thrust reverser part chrome plated in California. This from the A319, A320, A321 family. Every major narrow-body aircraft type in the world requires chrome plating. With no technological alternative, CARB has banned repair of this part. California is 2nd in US for tourism $.
Previous posts showed the importance of chrome plating to thrust reversers and turboprop systems. Chrome plating also enables safety in the landing system. Here is an axle sleeve used on Airbus A330 and A340s. Chromium is the hardest metal on the periodic table. Engineers use it for a reason.
January 20, 2026 at 7:33 PM
Previous posts showed the importance of chrome plating to thrust reversers and turboprop systems. Chrome plating also enables safety in the landing system. Here is an axle sleeve used on Airbus A330 and A340s. Chromium is the hardest metal on the periodic table. Engineers use it for a reason.
Chrome plating is used to repair this propeller dome. As part of the propellor pitch actuation system this is a flight critical part - especially in demanding use cases such as aviation fire-fighting. It is installed on the CL-415 Super Scooper used by CalFire and the ATR 72 and DeHavilland Dash 8.
January 14, 2026 at 7:50 PM
Chrome plating is used to repair this propeller dome. As part of the propellor pitch actuation system this is a flight critical part - especially in demanding use cases such as aviation fire-fighting. It is installed on the CL-415 Super Scooper used by CalFire and the ATR 72 and DeHavilland Dash 8.
Chrome plating and grinding are necessary to manufacture and repair this piston. What does it do? It is the core of the Boeing 737 thrust reverser system used to safely land. It includes a lock area to keep the system from deploying in flight. 315A1842. It enables safe flights to visit relatives.
January 7, 2026 at 3:46 PM
Chrome plating and grinding are necessary to manufacture and repair this piston. What does it do? It is the core of the Boeing 737 thrust reverser system used to safely land. It includes a lock area to keep the system from deploying in flight. 315A1842. It enables safe flights to visit relatives.