- Difficulty date
- April 18, 2021
- Submitted
- May 10, 2021
- Operation
- Air carrier
- Make and model
- Boeing 73779P
- Aircraft serial
- 29361
- Aircraft time
- 47,642 hours, 31,176 cycles
- Part
- Intercostal
- Part number
- 7530561
- Condition
- Corroded
- Location
- Bs 794 Rbl 19
- Stage of operation
- IN
- How discovered
- 9
- 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
CORROSION ON AFT CARGO DOORWAY INTERCOSTAL WEB UPPER FLANGE; BELOW LWR SUB THRESHOLD IB CHORD; BS 794 + 1.5; RBL 19; WL 156; MARKED / REMOVED AND INSTALLED NEW INTERCOSTAL WEB P/N 7530561 AND P/O. 821015. IAW SRM 51-40-02 AND DWG 146A8120. 92861U 23APR21.