What was found
During MCK in ATL, the upper cap of the closing rib was found cracked at YN 146. The crack was stop drilled at 2 ends and a repair angle was installed. Repaired per EA 98-188393.
- Difficulty date
- March 3, 2002
- Submitted
- March 19, 2002
- Operation
- Air carrier
- Aircraft
- N774NC
- Make and model
- Doug DC951
- Aircraft serial
- 47776
- Aircraft time
- 55,317 hours, 51,742 cycles
- System (JASC)
- 5410 · Nacelle/Pylon, Main Frame
- Part
- Rib
- Condition
- Cracked
- 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.