# SDR Y2PA2020090220015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2020
- Submitted: September 2, 2020
- Operation: Air carrier
- Aircraft: N327US
- Make and model: Doug DC-9-33F
- Registry model: [Doug DC-9-33F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-33f) (OpenAirDocs)
- Aircraft serial: 47414
- Aircraft time: 57,348 hours, 56,315 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: Beam
- Condition: Corroded
- Location: Bs 579
- Part time: 57,348 hours, 56,315 cycles
- Stage of operation: IN
- How discovered: W
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Y2PA2020090220015

## Discrepancy

DISCREPANCY:  DURING C-CHECK AT KDHN, CORROSION WAS FOUND ON THE FORWARD CARGO LOWER FUSELAGE BEAM AT STATION 579R – 579L ON THE FORWARD AND AFT ENDS.  CORRECTIVE ACTION:  COMMERCIAL JET CUT OUT THE DAMAGED SECTION OF THE FLOOR BEAM AT STATION 579 RBL 38.0 TO RBL 41.2, FABRICATED, LOCATED, DRILLED, DEBURRED, TREATED, PRIMED AND INSTALLED -1 REPAIR ANGLE, -2 REPAIR ANGLE, -3 FILLER AND -4 FILLER IAW ED20161 REV A AND DC9 SRM 51-10-4, 51-10-3 AND 51-60-0. FAA APPROVED PER 8110-3 ROBERT MANASHI DERT-710167-SW STRUCTURES DATED 5/22/2020.

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