# SDR CALA2020021640416

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2020
- Submitted: February 16, 2020
- Operation: Air carrier
- Aircraft: [N27246](https://openairdocs.org/aircraft/N27246), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28956
- Aircraft time: 62,352 hours, 23,183 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 146A3233
- Condition: Corroded
- Location: Aft Cargo
- 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/CALA2020021640416

## Discrepancy

(B737-53-3-0725) AFT CARGO, BILGE STRINGER HAS EXFOLIATED CORROSION, DAMAGE APPROX. 6 INCHES, STR. 26L(STA.807). REF BY PEMCO NR 2675N690 REMOVED & EVALUATED CORROSION FROM BILGE STRINGER AT AFT CARGO C OMPT. STR 26L STA 807-847 ORIG MAT ..090'' MAT LOSS. %100 FOUD TO BE OUT OF LIMITS. PERFORMED REPAIR FROM STR 26L SECTION STA 797 TO STA 887. IAW B-737-800 SRM 53-00-03 ALLOWABLE DAMAGE AND SRM 53-00-03 REPAIR 1 FIG 202.  EVALUATED CORROSION FROM BILGE STRINGER AT AFT CARGO OMPT. STR 26L STA 807-847 ORIG MAT ..090'' MAT LOSS. %100 FOUD T BE OUT OF LIMITS. PERFORMED REPAIR FROM STR 26L SECTION STA 79 TO STA 887. IAW B-737-800 SRM 53-00-03 ALLOWABLE DAMAGE AND SR

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