# SDR 4AER2016050600214

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2016
- Submitted: May 6, 2016
- Operation: General aviation
- Aircraft: [N304AS](https://openairdocs.org/aircraft/N304AS), registered now
- Make and model: Boeing 737-400
- Registry model: [Boeing 737-400](https://openairdocs.org/model/boeing-737-400) (OpenAirDocs)
- Aircraft serial: 25430
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Bs 500f
- Part time: 58,642 hours
- 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/4AER2016050600214

## Discrepancy

DURING PERFORMANCE OF A HEAVY MAINTENANCE CHECK, CONDUCT3ED REPETITIVE INSPECTION FOR CRACKING OF THE 1.04" NOM DIAMETER POWER CABLE FEED THROUGH HOLE ON FRAME AT FS 500F LEFT IAW AD 2011-23-05, SB 737-53A1279, REV 2.  INSPECTION IDENTIFIED A CRACK AT THIS LOCATION.  REMOVED FASTENERS, FABRICATED REPAIR DOUBLERS IAW WITH REPAIR SKETCH ESI-ESI-16-0008-07C.  REMOVED DAMAGE ADN ACCOMPLISHED HFEC OF CUTOUT WITH NO FURTHER CRACKS FOUND.L  PREPARED AREAS AND REPAIR PARTS AND INSTALLED ANGLES AND DOUBLERS IAW SKETCH ESI-ESI-16-0008-07C.

---
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.