Service difficulty report · Tire · Boeing 747422

Difficulty date
September 28, 2009
Submitted
September 28, 2009
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
75,450 hours, 8,547 cycles
Engine
Pwa PW4056
System (JASC)
3244 · Tire
Part
Tire
Condition
Failed
Location
Nlg
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT NLG TIRE SHREDDED, ABORTED TAKEOFF AT 120 KNOTS. NLG TIRE SEPARATED/TREAD DEPARTED CAUSING ENGINE AND FUSELAGE DAMAGE. SEVERAL DENTS IN BOTTOM OF FUSELAGE JUST BEHIND THE E&E COMPARTMENT DOOR DUE TO LT NOSE TIRE TREAD SEPARATION. RE-CONTOURED 2 EACH DENTS. CUT OUT DAMAGED AREA NEAR E&E DOOR AND INSTALLED DOUBLER. UA-EVA-73003 B REPAIR. NR 1 AFT AND NR 2 AFT BRAKES AND WHEELS WERE REMOVED FOR AXLE INSP. RE-INSTALLED NR 1A BRAKE AND REPLACED NR 2A BRAKE. BOTH NR 1 AND NR 2 AFT TIRES HAVE BEEN REPLACED.