# SDR CA990219012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Piper PA-31T2
- Registry model: [Piper PA-31T2](https://openairdocs.org/model/piper-pa-31t2) (OpenAirDocs)
- Engine: Pwa PT6A135
- System (JASC): [3232 · Landing Gear Door Actuator](https://openairdocs.org/jasc/3232)
- Part: O-Ring
- Part number: 762550
- Condition: Failed
- Location: Mlg Door
- Stage of operation: AP
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990219012

## Discrepancy

(CAN) LEFT INBOARD GEAR DOOR ACTUATOR BOTTOM GT RING.  THE O-RING AND BACK-UP FAILED.  THIS CAUSED THE ALL HYDRAULIC FLUID LOSS.   EMERGENCY GEAR EXTENSION USED.  CAUSE OF O-RING FAILURE WAS A PAINT CHIP ON INSIDE OF THE O-RING AND BACK-UP RING.

---
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.