# SDR 200200193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2002
- Submitted: April 2, 2002
- Operation: Air carrier
- Filed by: [Marana Aerospace Solutions Inc, repair station ERKR675D](https://openairdocs.org/faa-repair-station/ERKR675D/marana-aerospace-solutions-inc.md) (OpenAirDocs)
- Aircraft: N479EV
- Make and model: Boeing 747132
- Aircraft serial: 19898
- Aircraft time: 94,071 hours, 25,344 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/200200193

## Discrepancy

CORROSION AND SHORT EDGE MARGINS IN BS 340, 360 & 380 FRAME.  CORROSION WAS FOUND IN THE HOLES COMMON TO THE FRAMES AND THE UPPER DECK FLOORBEAM UPPER CHORDS AT BS 340 & 360, LT & RT AND BS 360 RIGHT.  THE HOLES WERE OVERSIZED TO REMOVE CORROSION CAUSING A SHORT EDGE MARGIN BS 360 LEFT.

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