SP00524SE
Installation of SMR Technologies electrothermal propeller deicer P/N SMR2822 as a replacement for McCauley electrothermal propeller deicer P/N B-40183-07 or Safeway electrothermal deicer P/N 6717SW on propellers 4HFR34C652-L106LA, 4HFR34C653/L106FA, 4HFR34C660/L90GA, 4HFR34C662/L108FA, and 4HFR34C663/L106KA. Held by Smr Technologies, which holds 34 approved modifications in all. Last revised March 15, 2002. System: propeller.
What it applies to
- Kind of product
- Propeller
- Design holder
- McCauley Propeller Systems; McCauley Propeller Systems; McCauley Propeller Systems
- Models
- 4JFR34C7( ), 4HFR34C6( ), 4HFR34C7( )
- Type certificates
- P3NE, P3NE, P3NE
- 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.