# SDR CA131004007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft time: 4,474 hours
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Bolt
- Part number: AN4H20
- Condition: Sheared
- Location: Acm
- 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/CA131004007

## Discrepancy

(CAN) 25HR AIR CONDITIONING INSPECTION C/O, LT CONDENSOR BLOWER MOTOR ATTACHMENT BOLT, 1 OF 3, WAS FOUND SHEARED AT MOTOR CASE.  THIS IS THE THIRD OCCURRENCE OF THE ATTACHMENT BOLT FAILURE IN THE FLEET.  ALL 3 BOLTS REPLACED WITH NEW.

---
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.