SDR UIEA01072

Service difficulty report · Fitting · Boeing 747243B

Difficulty date
July 11, 2001
Submitted
July 31, 2001
Operation
Air carrier
Aircraft
N518MC
Make and model
Boeing 747243B
Aircraft serial
23476
Part
Fitting
Part number
65B941383
Condition
Cracked
Location
Nr 1 Pylon
Stage of operation
IN
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING INSPECTION, FOUND THE NR 1 PYLON STRUT TO DIAGONAL BRACE FITTING CRACKED IN THE COMMON RADIUS OF THE HORIZONTAL TO VERTICAL SUPPORT FLANGE ALONG WITH ONE SHEARED FASTENER. REMOVED PYLON, REMOVED FITTING, FOUND RADIUS FILLER NOT INSTALLED. PERFORMED HFEC OPEN HOLE INSPECTION FOR ADDITIONAL CRACKING. NO CRACKS FOUND. INSTALLED NEW FITTING AND SEAL BACK UP PLATE IAW SB747-54A2208 AND 747-54A2196. REINSTALLED PYLON. (M)