What was found
INTERCOSTAL AT BS 500K 500L RBL 23 HAS CORROSION UNDER UPPER FLANGE AT AFT MOST NUT PLATE HOLE. NO DAMAGE LIMITS FOUND IN SRM. FABRICATED AND INSTALLED NEW INTERCOSTAL.
- Difficulty date
- June 8, 2009
- Submitted
- June 8, 2009
- Operation
- Air carrier
- Aircraft
- N309AS
- Make and model
- Boeing 737990
- Aircraft serial
- 30857
- Aircraft time
- 29,538 hours, 11,530 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Part number
- 143A750532
- Condition
- Corroded
- Location
- Fuselage
- 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.