Service difficulty report · Tire · Boeing 777222

Difficulty date
December 29, 2002
Submitted
January 21, 2003
Operation
Air carrier
Aircraft
N221UA
Make and model
Boeing 777222
Aircraft serial
30552
Aircraft time
5,949 hours, 856 cycles
Engine
Pwa PW4090
System (JASC)
3242 · Brake
Part
Tire
Part number
M12301IND02
Part serial
UNKNOWN
Condition
Failed
Location
Nr 9
Part time
262 hours, 33 cycles
Stage of operation
LD
How discovered
O
Nature of condition
S
Precautionary procedure
K

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

What was found

DURING LANDING NR 9 TIRE, BURST, CAUSING DAMAGE TO THE AFT FLAP. DAMAGE AREA APPROXIMATELY 13 X 10 INCHES. HOLE IS APPROX 6 X 5.5 INCHES. SUPPLEMENTAL DATA UPDATE UPON LANDING NR 9 TIRE THREW TREAD WHICH CONTACTED AND DAMAGED THE LH INBD TE FLAP ASSEMBLY. DAMAGED AND ADJACENT TIRE WAS REPLACED. PRELIMINARY INSPECTION OF THE DAMAGED TIRE SHOWS EVIDENCE OF FOREIGN OBJECT DAMAGE WHICH MAY HAVE STARTED DELAMINATION AND LOSS OF TIRE TREAD.