Service difficulty report · Bulkhead · Boeing 74747UF

Difficulty date
April 12, 2012
Submitted
April 17, 2012
Operation
Air carrier
Aircraft
N475MC
Make and model
Boeing 74747UF
Aircraft serial
29252
Aircraft time
57,368 hours, 10,347 cycles
Part
Bulkhead
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 VBS THROUGH THE NOSE CARGO DOOR, LOADER DROPPED CAUSING DAMAGE TO BS 260, WL195.8 - CANTED BULKHEAD STIFFENER, CONSISTING IN EDGE CRACK MEASURING 0.750 IN. 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 1,000 (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