FADECFAULT From United States of America, joined Nov 2007, 79 posts, RR: 0 Posted (7 years 2 weeks 8 hours ago) and read 3560 times:
I was wondering if you guys at other carriers have problems with 737ng main inboard tire shoulder wear. Seems like the outboard shoulders on 2 & 3 wear very fast compared to all the other tires and something should be done about it. Is this a known problem?
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Boeing767mech From United States of America, joined Dec 2000, 1037 posts, RR: 2
Reply 1, posted (7 years 2 weeks 7 hours ago) and read 3538 times:
Quoting FADECFAULT (Thread starter): Seems like the outboard shoulders on 2 & 3 wear very fast compared to all the other tires and something should be done about it. Is this a known problem?
It's partly due to the fact the MLG on the 737 does not sit complete parallel to the ground. The outboard side of the axle is higher. So you will get slight wearing on the 2 and 3 tires. I seem to remember Boeing had a service letter explaining this, or maybe it was a company service letter from my employer.
RoseFlyer From United States of America, joined Feb 2004, 10922 posts, RR: 52
Reply 5, posted (7 years 1 week 6 days 20 hours ago) and read 3352 times:
When the 737 gear extends, the gear is straight down. However when the weight is on the wheels, the wings do flex and there is an outward tilt on each main gear. The result is a gear that is not even loading on the tires. The braking though, which is the most important factor is not affected though.
If you have never designed an airplane part before, let the real designers do the work!