Service difficulty report · Hinge Fitting · Boeing 747451

Difficulty date
September 7, 2007
Submitted
October 11, 2007
Operation
Air carrier
Aircraft
N661US
Make and model
Boeing 747451
Aircraft serial
23719
Aircraft time
76,942 hours, 10,317 cycles
Part
Hinge Fitting
Condition
Cracked
Location
Horizontal Stab
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

DURING "M" CHECK WHILE ACCOMPLISHING SB 747-55A2050, FOUND CRACKED FASTENER HOLE 29 ON LT HORIZONTAL STABILIZER CENTER LT HINGE FITTING. REPAIRED PER EA 63-210684 SECTION I. SECTION II OF EA REQUIRES DVI INSPECTION OF REPAIRED AREA AT "L" CHECK INTERVALS. SECTION III REQUIRES A HFEC INSPECTION ON ALL HORIZONTAL STABILIZER FITTING HOLES TO ENSURE A CRACK FREE CONDITION.