# SDR UPS02439551

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2002
- Submitted: October 2, 2002
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- Aircraft time: 81,157 hours, 20,074 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Corroded
- Location: Rt Mlg Ww
- 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/UPS02439551

## Discrepancy

C CHECK,  RT WLG W/W OVERWING LONGERON I/B CHORD O/B SIDE CORROSION REVEALED AT STA 1250-1265 RBL 120.     CORROSION REMOVED IAW SRM 51-10-01, CORROSION BLEND OUT 0.080 X 1 X 5 INCHES EXCEED SRM 53-10-01 LIMITS. CHORD REPAIRED PER FIG 51-40-04  FIG 3.

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