SR00788DE
Installation of Bubble Windows on BFS CH-47D Chinook Rotorcraft for Left and Right sides of the Pilot and Co-Pilot doors respectively. Held by Billings Flying Service INC.. Last revised June 6, 2025. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Billings Flying Service Inc; Tandem Rotor LLC; Billings Flying Service Inc.; Billings Flying Service, Inc.
- Models
- CH-47D, CH-47D, CH-47D, CH-47D
- Type certificates
- R0011DE, R0014DE, R00115SE, R0015DE
- On this site
- Billings Flying Service Inc CH-47 6 registered
Tandem Rotor Llc CH47 5 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 20, 2026.