Service difficulty report · Frame · Boeing 747200

Difficulty date
February 6, 2006
Submitted
March 3, 2006
Operation
Air carrier
Aircraft
N522UP
Make and model
Boeing 747200
Aircraft serial
21936
Aircraft time
72,217 hours, 16,929 cycles
Part
Frame
Part number
65B01711
Condition
Cracked
Location
Bs 360
Stage of operation
IN
How discovered
9
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

COCKPIT BS 360 STR8-9R FRAME O/B FLANGE FOUND CRACK, CRACK LENGTH 0.19" TO 1 1/4". COCKPIT BS 360 STR8-9R FRAME O/B FLANGE REPAIRED AS PER RS R53-12-35433 CONTINUED INSPECTIONS REQUIRE WHILE PERFORMED SB 747-53A2265 INSPECTIONS AND REPLACEMENT WITH SB747-2272 MOD AT OR BEFORE 20000 FLIGHT CYCLES.

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