When 844AA first arrived in Luanda from the USA it was grounded by the local Fed's because it didn't have an HF radio. An HF radio taken from a Cessna 206 (or close to it) including the long coaxial antenna was installed on 844AA. It may be possible to identify the aircraft by inspecting the belly and identifying the holes drilled aft of the EEC door along the center line of the belly where the antenna from the 206 was installed. The first hole would be roughly 3/8 diameter directly aft and close to the EEC access door and then approximately 8 more 1/8" holes drilled approx. 4' apart running aft along the belly. Attached to these holes were brackets that the antenna was attached to. So it is possible that on inspection from an experienced 727 mechanic or flight crew member and if these holes were not filled in,they may be able to identify these non conforming holes in the belly thus confirming that the aircraft is 844AA. By the way, after this bizarre installation of the HF antenna designed for a Cessna was installed on 844AA, the local Fed's signed it off.
