SDR TWRA97203

Service difficulty report · Structure · Boeing 747121

Difficulty date
December 2, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N617FF
Make and model
Boeing 747121
Aircraft serial
19650
Part
Structure
Condition
Cracked
Location
Nr 3 Pylon
Stage of operation
IN
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

ON A2 SVC, FOUND SEVERAL CRACKS IN NR 3 PYLON, NAC STATION 219 STRINGER ABOVE PANEL 473CL, APPROX 1 INCH CRACK IN STRINGER HORIZ FLANGE. RIGHT FRAME AT NAC 269 1 INCH CRACK OUT OF BRACKED RIVET HOLE APPROX 20 INCHES FROM BOTTOM OF PYLON. INBOARD SIDE, SIDE EXTERNAL 5.5 INCH CRACK AT NAC STATION 217, LT SIDE. A 5.5 INCH SKIN CRACK EXTENDING OUT OF DOUBLER. RIGHT FRAME AT NAC STATION 269 6 INCHE BELOW LONGERON. RT FRAME AT NAC STATION 252 IS CRACKED 6 INCHES BELOW LONGERON. LEFT PYLON SKIN REPAIR WAS ACCOMPLISHED AS PER EA 54-095. (M)