Service difficulty report · Floorbeam · Boeing 777222

Difficulty date
October 16, 2001
Submitted
November 7, 2001
Operation
Air carrier
Aircraft
N769UA
Make and model
Boeing 777222
Aircraft serial
26921
Aircraft time
26,034 hours, 5,180 cycles
Engine
Pwa PW4077
Part
Floorbeam
Part number
141W851817
Condition
Cracked
Location
Fuselage
Part time
26,034 hours, 5,180 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

STA 246 WEB CRACKED AT RBL 26.06 JUST OUTBOARD OF UPPER FASTENER COMMON TO MID-CHORD. MAJOR REPAIR: DAMAGE REMOVED AND DOUBLER INSTALLED. NOTED CRACKING OF THE 141W8518-17 WEB IS DUE TO THERMAL CONTRACTION THAT RESULTS IN HIGHER THAN EXPECTED IN-SERVICE LOADING OF THE DOUBLE DEPTH STATION 246 FLOORBEAM. PART IS BEING REPAIRED.