What was found
FWD PIT AFT BULKHEAD STA 500L LOWER SUPPORT IS CORRODED. GROUNDED - YES. REMOVED AND REPLACED LOWER BLEND SUPPORT ANGLE IAW SRM 51-40-02-0G-0 STEP 7.A. 1-4 W= 2.0" O= .080 R= .050 L= 3" D= .030.
- Difficulty date
- April 20, 2026
- Submitted
- May 21, 2026
- Operation
- Air carrier
- Aircraft
- N464AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40714
- Aircraft time
- 38,179 hours, 11,725 cycles
- System (JASC)
- 5312 · Fuselage Main, Bulkhead
- Part
- Bulkhead
- Part number
- 143A948535
- Condition
- Corroded
- Location
- Zone 100
- 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.