What was found
0.7" CRACK HAS EXTENDED FROM THE STOP HOLE OF THE PREVIOUS CRACK AT R/H STABILIZER UPPER LOBE DOUBLER. REPAIR COMPLETED PER :CASTLE ID: 202603060065: BOEING 8100-9 ISSUED DATED 04/21/2026. REF ID 202603060065-0011
- Difficulty date
- March 9, 2026
- Submitted
- April 25, 2026
- Operation
- Air carrier
- Aircraft
- N952CA
- Make and model
- Boeing 747428
- Aircraft serial
- 25238
- Aircraft time
- 118,511 hours, 18,018 cycles
- System (JASC)
- 5512 · Horizontal Stabilizer, Plate/Skin
- Part
- Doubler
- Part number
- 65B01870
- Condition
- Cracked
- Location
- Zone 300
- Part time
- 118,511 hours, 18,018 cycles
- Stage of operation
- IN
- How discovered
- E
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.