So it does appear that they added US flight numbers 64 and 65 to this as a codeshare, which is indeed AA 64/65, operated with the 767-300ER, which only exists in the legacy AA fleet:
[KVS Availability Tool 7.3.4/Diamond - Operational Info: US 64/26 Nov 2014]
Code:
Planned Flight Info
Segment Departure Arrival Duration
------- --------- --------- --------
DFW-JFK 10:00/Wed 14:40/Wed 03:40
JFK-ZRH 18:00/Wed 07:55/Thu 07:55
Segment Flight Note
------- -----------------------------------------
DFW-JFK COMMERCIAL DUPLICATE - OPERATED BY
AMERICAN AIRLINES
JFK-ZRH COMMERCIAL DUPLICATE - OPERATED BY
AMERICAN AIRLINES
DFW-JFK AIRCRAFT OWNER AMERICAN AIRLINES
JFK-ZRH AIRCRAFT OWNER AMERICAN AIRLINES
DFW-JFK OPERATIONAL LEG AA 0064
JFK-ZRH OPERATIONAL LEG AA 0064
JFK-ZRH DEPARTS TERMINAL 8
DFW-JFK ARRIVES TERMINAL 8
DFW-JFK MCT FLIGHT TRACKING D/D
DFW-ZRH MCT FLIGHT TRACKING D/I
JFK-ZRH MCT FLIGHT TRACKING I/I
ENTIRE FLT- CHECK-IN /AMERICAN AIRLINES
DFW-JFK ON-TIME PERF NDEC13
DFW-JFK 4/ AUDIO PROGRAMMING
DFW-JFK 10/ SHORT FEATURE VIDEO
JFK-ZRH 7/ DUTY FREE SALES
ENTIRE FLT- 12/ IN-SEAT POWER SOURCE
ENTIRE FLT- SECURED FLIGHT
ENTIRE FLT- ET/ ELECTRONIC TKT CANDIDATE
DFW-JFK NNN/NNN/N/NNN/ DEC13
I really hope they don't get in the habit of doing that for all flights, even though they probably think they're doing most folks a favor. We'll need to be extra vigilant on equipment type and seat maps to determine whose aircraft we are actually on when both fleet types are operated by the legacy carriers (e.g., A319 and A321). The web site should show it correct, but who knows whether travel agency sites will.
In the KVS Tool, it shows as:
[KVS Availability Tool 7.3.4/Diamond - Availability/FS/US]
Code:
JFK New York John F Kennedy Intl NY US [KJFK]
ZRH Zurich CH [LSZH]
WED 26 Nov 2014
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- -------- ---- -------- --- -- --------------------------------------------------------
US/AA 64 JFK 18:00 ZRH 07:55 763 D4 Z4 Y4 B4 M4 H4 Q4 N4 V4 W4 L4 S4 T4 G4 K4 U4 E4 R4 C4
Perhaps since it shows US/AA rather than AA/US, it's printing US 64 by default. That sounds like unintended IT behavior.