# SDR SWAA2020122834184

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2020
- Submitted: December 28, 2020
- Operation: Air carrier
- Aircraft: [N7713A](https://openairdocs.org/aircraft/N7713A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33919
- Aircraft time: 51,736 hours, 26,642 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Condition: Cracked
- Location: Fuselage
- 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/SWAA2020122834184

## Discrepancy

CRACK STRINGER 23L BETWEEN BS 520 TO BS 540 FWD CARGO COMPARTMENT.  REPAIRED STRINGER 23L BETWEEN BS 500D TO BS 540 FWD CARGO COMPARTMENT, IAW B737-700 SRM 53-00-03-2R -1 REPAIR 1 FIG 206.  REPAIR PARTS ARE REPLACEMENT STR CONDITION MATERIAL 7075/T6 0.036 -2 CHANNEL AND -3 ANGLE (2 EA) CONDITION MATERIAL 7075T6/0.040'.  PERFORMED HEAT TREATMENT, IAW BAC5602 AND APPLIED PROTECTIVE TRATMENT, IAW SRM 51-20-01 B737-700.

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