# SDR 96ZZZX5577

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N465AT
- Make and model: Boeing 737-2L9
- Registry model: [Boeing 737-2L9](https://openairdocs.org/model/boeing-737-2l9) (OpenAirDocs)
- Aircraft serial: 21528
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Bs 460
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX5577

## Discrepancy

DURING SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FL, FOUND FRAME AT BS 460.0 BETWEEN STR 20L - STR 21L, AREA HAS TWO EACH CRACKS EMANATING FROM RIVET HOLES AT INNER CORD.  FABRICATED FORMED SECTION REPAIR FROM 7075-0 .063 INCH IAW SRM 51-40-3.  HEAT TREATED TO T-6 IAW BAC 5602.  STOP DRILLED CRACKS.  NDT VERIFIED CRACK TERMINATED IAW SRM 51-10-1.  INSTALLED FORMED SECTION REPAIR IAW SRM'S 51-40-3, 51-30-2, AND 51-10-2.  REF:  N/R 060-N1-0467/50795.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.