# SDR SWAA2022060902026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2022
- Submitted: June 9, 2022
- Operation: Air carrier
- Aircraft: [N477WN](https://openairdocs.org/aircraft/N477WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33988
- Aircraft time: 60,414 hours, 35,826 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Shield
- Condition: Corroded
- Location: Aft Cargo
- 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/SWAA2022060902026

## Discrepancy

CORROSION ON AFT CARGO BAY FWD DOOR SHIELD AT RBL 22 BS 767+4; BS 767+8; BS 767+12. / [01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS AND NOT FOUND ON SRM; MUST BE REPLACED IAW SRM 51-10-02 PARAGRAPH 9; IDENTIFICATION IAW SRM 53-60-15-0I-1 IDENTIFICATION 1;[02] UPDATE STEP #1 : NO ALLOWABLE DAMAGE LIMITS FOUND IN SRM FOR SHIELD; MUST BE REPLACED IAW SRM 51-10-02-0G-0- PARAGRAPH 9; IDENTIFICATION IAW SRM 53-60-15-0I-1 IDENTIFICATION 1;[03] CERTIFIED CORRECTIVE ACTIONS 1-2.;[04] VERIFIED CORRECTIVE ACTIONS #1 AND #2<BR>VERIFIED MEASUREMENT TABLE;[05] LOCATED; DRILLED AND COUNTERSINK NEW PART P/N:146A8127-12 PO.NUMBER:863320/1 IAW SRM 51-40-05 AND SRM 51-40-08;[06] LOCATED; DRILLED AND COUNTERSINK NEW PART P/N:146A8127-12 PO.NUMBER:863320/1 IAW SRM 51-40-05 ;SRM 51-40-08 AND DWG 146A0081 REV.-A;[07] PART REQUIREMENT;[08] VERIFIED CORRECTIVE ACTION #6

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