The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA497EA

Inflight Motion Pictures Provisions in accordance with Lockheed Report 3052, "Technical Drawing Index, Inflight Motion Pictures," dated October 14, 1966, revised December 29, 1966, or revised May 9, 1967, and Lockheed Report 3056, "Technical Drawing List, Inflight Motion Pictures Pallet Assembly 1R-3000 (Rev. A)," dated October 18, 1966. Held by United Airlines INC, which holds 520 approved modifications in all. Last revised November 30, 2011. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
The Boeing Company
Models
DC-8-61
Type certificate
4A25
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.