# SDR 96ZZZX2470

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N83032](https://openairdocs.org/aircraft/N83032), registered now
- Make and model: Bbavia 7AC
- Aircraft serial: 7AC1688
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 5142
- Condition: Cracked
- Location: Lt/Rt Nr 2-3 Inb
- Part time: 3,721 hours
- 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/96ZZZX2470

## Discrepancy

DISMANTLED BOTH LT AND RT WINGS FOR THE PURPOSE OF RECOVERING.  IN THE PROCESS OF REMOVING OLD COVER, DETERMINED THAT ALL THE SCREWS THAT SECURE THE FABRIC TO THE RIBS FOR THE NR 2 AND NR 3 INBOARD RIBS OF EACH WING, HAD ELONGATED THE HOLES IN THE RIBS AND WAS NOT SERVING THE INTENDED PURPOSE OF SECURING THE FABRIC.  THE SCREW HOLES WERE ELONGATED THE ENTIRE WIDTH OF THE RIB CAP FLANGE AND HAD SEVERAL WITH CRACKS EMITTING FROM THEM.  THE NR 3 INBOARD RIB ON LEFT WING WAS CRACKED COMPLETELY THROUGH THE LIGHTENING HOLE WHICH ORIGINATED FROM THE SCREW HOLE.  SUBMITTER RECOMMENDS WHEN RECOVERING, THAT SCREW HOLES ARE OF PROPER SIZE.

---
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.