# SDR BLUA20210825001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2020
- Submitted: August 25, 2021
- Operation: Air carrier
- Aircraft: [N560ML](https://openairdocs.org/aircraft/N560ML), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5027
- Aircraft time: 4,452 hours, 3,725 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Part number: 66120634
- Part serial: NSN
- Condition: Damaged
- Location: Tailcone
- Part time: 4,452 hours, 3,725 cycles
- 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/BLUA20210825001

## Discrepancy

DURING COMPLIANCE WITH DOCUMENT 4 REV 44, DAMAGE WAS FOUND ON AFT SIDE OF AFT TAILCONE BULKHEAD AT 5:30 CLOCK POSITION.  DAMAGE APPEARS TO BE CONSISTENT WITH THE TAIL OF A LONG SCREW CONTACTING THE BULKHEAD.  A TOO-LONG SCREW WAS NOT REMOVED FROM THAT LOCATION AT THIS TIME.  REPAIR INCLUDED FABRICATION OF A DOUBLER FROM STAINLESS STEEL AND AN ALUMINUM ANGLE AND INSTALLATION IAW AQRD ERO-967383 DATED 11/18/20 WITH APPROVAL FROM TEXTRON ENGINEERING ON FAA FORM 8110-3 DATED 11/20/20.

---
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.