Service difficulty report · Fitting · Boeing 747271C

Difficulty date
August 16, 2003
Submitted
July 8, 2004
Operation
Air carrier
Aircraft
N537MC
Make and model
Boeing 747271C
Aircraft serial
22403
Part
Fitting
Part number
69B941204
Condition
Cracked
Location
Nr 1 Pylon
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 C-CHECK, AT AMS NR 1 PYLON OUTBOARD SPRING BEAM SHEAR TRANSFER FITTINGS FOUND CRACKED DUE TO CONTACT WITH SPRING BEAM. CONTRACT RESULTED FROM MIS-LOCATION OF FITTINGS. SUBJECT FITTING WERE TRIMMED TO REMOVE CRACK & DAMAGE, NDT INSPECTED, & RESTORED PER DRAWING. FITTINGS. CRACK FOUND ON FITTING .47 INCH LONG. ACCOMPLISH A VISUAL INSP NR 4 PYLON. PROBLEM DID NOT OCCUR AT PYLON NR 4. DAMAGE FOUND ON FITTING 69B94120-3. DAMAGED AREA WAS TRIMMED. THE REPAIRS ARE STRUCTURALLY ACCEPTABLE AND SUFFICIENT CLEARANCE IS PROVIDED. CONDUCT A DETAIL VISUAL INSPECTION OF THE FITTING & INSTALLATION EVERY 6 MONTHS TO CONFORM NO FURTHER CRACKING OR DAMAGE TO THE FITTINGS. REPLACE THE FITTING WITHIN 18 MONTHS. (M)