What was found
MAIN DECK, BS 740 FRAME TENSION TIE ATTACHMENT AREA 1 EA HOLE FOUND CRACKED AT AFT CHANNEL APPROX 0.040" RUNNING UPWARD. CHANNEL REPAIRED IAW EO 4453A301. STEP 5F AND SB 747-50A2502, REV 1, FIG 11.
- Difficulty date
- March 26, 2012
- Submitted
- April 19, 2012
- Operation
- Air carrier
- Aircraft
- N418MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 32840
- Aircraft time
- 40,888 hours, 6,095 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Channel
- Condition
- Cracked
- Location
- Bs 740
- 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.