- Difficulty date
- June 19, 2025
- Submitted
- July 15, 2025
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 64,757 hours, 19,600 cycles
- Part
- Doubler
- Part number
- 146A32396
- 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.
What was found
BELLY DRAIN DOUBLER BS.737.37 BL.0 SHOWS SIGNS OF CORROSION. GROUNDED - YES. REMOVED CORROSION ON BELLY DRAIN DOUBLER AT STA.737.37 BL.0 ORIGINAL MAT .063" IAW BAC DWG #146A3239 REV:C, LOST .008", REMAINING .055" OF MATERIAL FOUND BEYOND LIMITS IAW B737-800 SRM 53-00-01-1A-5, REMOVED AND REPLACED DOUBLER P/N 146A3239Y6 PO#1125778.1 IAW B737-800 SRM 51-40-02 AND BAC DWG #146A3230 REV:B.