# SDR CA101013005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2010
- Submitted: January 4, 2011
- Operation: Air carrier
- Make and model: Cessna 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Aircraft time: 2,563 hours
- Engine: Lyc O360A4M
- Propeller: Mcauly 1A200DFA
- System (JASC): [3246 · Wheel/Ski/Float](https://openairdocs.org/jasc/3246)
- Part: Roll Pin
- Part number: 74322
- Condition: Cracked
- Location: Float
- Component: Float
- Component part number: BF2550A
- 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/CA101013005

## Discrepancy

DURING ANNUAL INSP, IT WAS NOTED THAT THE TIP OF A LANDING GEAR DOWN-STOP ROLL PIN HAD BEEN SHEARED OFF.  UPON CLOSER INSP OF ALL REMAINING ROLL PINS IN THE UP AND DOWN STOP LATCH BLOCKS, IT WAS NOTED THAT ALL WERE CRACKED. REMOVAL OF THE PINS REVEALED MOST TO BE CRACKED ALONG THE ENTIRE LENGTH, AND IN SOME CASES, BROKEN IN PIECES.

---
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.