Service difficulty report · Rib · Boeing 737724

Difficulty date
March 9, 2006
Submitted
March 10, 2006
Operation
Air carrier
Aircraft
N54711
Make and model
Boeing 737724
Aircraft serial
28782
Aircraft time
25,276 hours, 8,121 cycles
Part
Rib
Part number
175A12056
Condition
Cracked
Location
Vertical 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

INSPECTION FOUND A 1 INCH CRACK IN VERTICAL STABILIZER FRAME (T/E HINGE RIB) WHERE RUDDER RIG PIN R-5 GOES THROUGH FEEL AND CENTERING FRAME, FIN STA 142-150. A REPAIR DOUBLER WAS INSTALLED IAW ECRA 5530-01445. A DIP WAS ISSUED TO PERFORM AT PERMANENT REPAIR AT THE EARLIER OF 500 HOURS OR THE NEXT MAINTENANCE CHECK WHERE THE USE OF THE RIG PIN IS REQUIRED, NOT TO EXCEED 12 MONTHS.