What was found
AFT WET STA 947 FLOORBEAM CORRODED AT RBL-25. GROUNDED - YES. BLENDED CORROSION, FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-70-51-1A-1. REPAIRED FLOORBEAM IAW ASA EA # 900ER-53EA-26612.W= 2.0 O= .180 R= .135 L= 2.5 D= .045.
- Difficulty date
- January 31, 2024
- Submitted
- March 27, 2024
- Operation
- Air carrier
- Aircraft
- N408AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41732
- Aircraft time
- 41,130 hours, 12,961 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Part number
- 147A550423
- Condition
- Corroded
- Location
- Bs 947 Rbl 25
- 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.