# SDR DALA2015032602387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2015
- Submitted: March 26, 2015
- Operation: Air carrier
- Aircraft: N966DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53115
- Aircraft time: 63,004 hours, 46,886 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Condition: Corroded
- Location: Lt Wing
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2015032602387

## Discrepancy

CORROSION ON BORE/INNER AND OUTER SURFACE OF RIBS FROM STA XIS=83,136 AND 186 AT SLAT PANEL LT NR 1.  CORROSION ON OUTER SURFACE OF RIBS WERE REMOVED IAW SRM 51-10-3.  RIBS WERE MESURED AS FOLLOWS ORIGINAL THICKNESS IS 0.320" REMAINING THICKNESS IS 0.277", THEREFORE IT'S WITHIN LIMITS IAW SRM 57-01, FIG 1.  REWORKED  AREA ON OUTER SURFACE WAS TREATED AND PAINTED IAW SRM 51-10-3.  DAMAGE ON BORE OF RIBS WERE REMOVED AND MEASURED; STA XOS=83 HOLES AFT AND FWD ID 1.063" AND FWD INBD ID 1.062", STA XOS=136 HOLES AFT 0.938" AND HOLES FWD 0.950", XOS=186, HOLES FWD 0.938" THEREFORE WITHIN LIMIT OF MAXIMUM REWORK HOLES DIAMETER IAW SRM 57-02, PAR 9.  BUSHING WERE FABRICATED AND   INSTALLED IAW SRM 57-02, PAR 9 C 1, 2.

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