SA02959NY
Installation of 4-blade propeller MTV-16-1-E-C-F/CFL225-37a in accordance with EASA approved MT Propeller Installation Instruction Doc. No. E-1953, Original Issue, dated August 20, 2010. The following MT Propeller documents are required with this installation: EASA approved Airplane Flight Manual Supplement Doc. No. E-1952-2, Original Issue, dated August 20, 2010 and Instructions for Continued Airworthiness Doc. No. E-1954, Revised August 20, 2010. Held by Mt- Propeller Entwicklung GMBH (Germany), which holds 66 approved modifications in all. Last revised May 3, 2011. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.
- Models
- PA-31P
- Type certificate
- A8EA
- On this site
- Piper PA-31 Navajo and Chieftain 935 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 21, 2026.