# SDR UPS02439587

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2002
- Submitted: October 4, 2002
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- Aircraft time: 81,157 hours, 20,074 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- 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/UPS02439587

## Discrepancy

INSPECTION TYPE:C U/D- FLR SUPPORT ATT CURVE WEB FOUND HEAVY CORR AS MARKED. (BS 460, WL 307, RBL 24)     CORROSION REMOVED IAW SRM 51-10-01. CORROSION BLEND OUT 0.032" X 1" X 2" EXCEED SRM 53-10-01 LIMITS, WEB REPAIRED PER SRM 51-40-03 FIG 3

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