What was found
DURING THE PRESENT C4 CHECK, NR 2 PYLON LT NAC STA 332 FRAME RIB WAS FOUND WITH A WEAR AROUND MOUNT BOLT HOLE, APPROX 0.035 INCH MATERIAL REMOVED. THE ORIGINAL THICKNESS OF THE RIB WAS REPORTED AT 0.080 INCH.
- Difficulty date
- August 31, 2011
- Submitted
- September 9, 2011
- Operation
- Air carrier
- Aircraft
- N523MC
- Make and model
- Boeing 7472D7B
- Aircraft serial
- 21782
- Aircraft time
- 104,519 hours, 21,333 cycles
- System (JASC)
- 5411 · Nacelle/Pylon, Frame/Spar/Rib
- Part
- Rib
- Condition
- Damaged
- Location
- Lt Nacelle
- 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.