Service difficulty report · Stiffener · Boeing 74747UF

Difficulty date
February 16, 2011
Submitted
February 18, 2011
Operation
Air carrier
Aircraft
N415MC
Make and model
Boeing 74747UF
Aircraft serial
32837
Aircraft time
37,953 hours, 6,033 cycles
Part
Stiffener
Condition
Damaged
Location
Bs 260
Stage of operation
IN
How discovered
V
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 LOADING OPERATIONS AT ACC THROUGH THE NOSE CARGO DOOR, LOADER DROPPED CAUSING DAMAGE TO BS260, WL195.8 - CANTED BULKHEAD STIFFENERS (2 EA), CONSISTING IN EDGE CRACKS MEASURING 1.5 INCHES LONG (REF FIG 1). DAMAGE TO THE STIFFENERS EXCEEDS THE SRM 53-10-08-1A-2 ALLOWABLE DAMAGE LIMITS. (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS, INITIATE REPETITIVE DVIS AT EVERY 1000 FH (FLIGHT HOURS) AND PERMANENT REPAIR PRIOR TO, OR AT THE NEXT C-CHECK AFTER PART 1 IAW THE SRM 53-00-50, REPAIR 1)

More about the Boeing 747-47UF