SP1964SO
Installation of replacement electrothermal type de-icing boots. Held by Thermodyne, INC. Last revised January 7, 1992. System: propeller.
What it applies to
- Kind of product
- Propeller
- Design holder
- Hamilton Standard Division; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; Hartzell Propeller Inc.; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems; TRW Hartzell Propeller; TRW Hartzell Propeller; TRW Hartzell Propeller; TRW Hartzell Propeller
- Models
- 33LF, HC-83X, HC-B3Z, HC-A2X, HC-A3X, BHC-C2Y, HC-C2Y, HC-B3T, HC-A2V, ( )HC-C3Y Series, HC-B3P, HC-E3Y, PHC-J3Y, BHC-J2Y, HC-B4T, HC-B5M, HC-A3V, HC-E2Y, 2A36, 3A32C, D3A32C, 3AF32C, E2A34C, D3A34C(4, 1A103, 3AF32C(5-), D2AF34C, 3GFR34C7( ), HC-83V, HC-B3R, HC-B3W, HC-F3Y
- Type certificates
- P20EA, P-884, P-907, P-908, P-913, P-920, P-920, P15EA, P24EA, P25EA, P29EA, P33EA, P36EA, P37EA, P40EA, P44GL, P6EA, P9EA, P-880, P21EA, P21EA, P22EA, P3EA, P47GL, P50GL, P57GL, P5EA, P60GL, P14EA, P28EA, P2EA, P31EA
- 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 7, 2026.