#BAT91
A United States Air Force E-9A Dash 8 (callsign BAT91) is observed conducting maritime surveillance over the Atlantic east of Trinidad and Tobago.
December 20, 2025 at 5:36 PM
Excuse me again as BAT91 is NOT a dornier. Its a Dassault. Apologies
January 2, 2026 at 9:23 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-28 08:46:23 EDT
Min Alt: 4150 ft
Squawk: #0612
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September 28, 2026 at 12:48 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-29 08:52:38 EDT
Min Alt: 2875 ft
Squawk: #0620
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September 29, 2026 at 12:58 PM
Well, excuuuuse me. Its gone over the gulf of mexico and heading further south. Possibly to Panama to join with other Dorniers such as BAT91?
January 2, 2026 at 5:00 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-27 10:15:15 EDT
Min Alt: 5075 ft
Squawk: #0676
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September 27, 2026 at 2:17 PM
A pair of USAF AFSOC P-9A (DHC Dash-8-200) operating out of Curacao

N986HA #ADC21E as #BAT86
N991HA #ADD70A as #BAT91

This variant is normally for special missions, often used for Intelligence, Surveillance, and Reconnaissance (ISR), associated with 645 Aeronautical Systems Group (AESG)
December 10, 2025 at 7:30 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-26 10:19:12 EDT
Min Alt: 12100 ft
Squawk: #0672
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September 26, 2026 at 2:23 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-25 10:13:09 EDT
Min Alt: 4600 ft
Squawk: #0647
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September 25, 2026 at 2:33 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-24 10:06:08 EDT
Min Alt: 2150 ft

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September 24, 2026 at 2:11 PM
I doubt it. Probably high above the gulf doing its thing.

I'll periodically check back for it.

Also, watch out around Venezuela and the Caribbean for US military flights with callsign BAT91 or other numbers after BAT.

Theyre most likely used as intel gathering for strikes.
December 23, 2025 at 4:21 AM
#BAT91 out of Panama could be a possibility.
DE HAVILLAND DHC-8-200 Dash 8 operated by
645 AERONAUTICAL SYSTEMS GROUP (AESG)
January 14, 2026 at 7:21 PM
His partner is to the east working in the Gulf. BAT56 and BAT91 are used extensively in the anti drug role. They've been a fixture for a while, guessing they're tied in with the rest of the military presence right now.
December 29, 2025 at 1:48 AM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-23 07:05:38 EDT
Min Alt: 5075 ft
Squawk: #0624
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September 23, 2026 at 11:06 AM
Seems BAT91 was already out and about and coming back in 😒 i hate this and knowing what they do
December 24, 2025 at 6:15 PM
BAT91 (N991HA), BAT97 (N997MG), DH8B aircraft. US military contractors? Out of Panama City? Previously idemtified as monitoring illicit trafficking in the Caribbean and Central America. At 2130z Saturday.

@osinttechnical.bsky.social @sentdefender.extwitter.link @borrowed7time.bsky.social
October 25, 2025 at 9:37 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-05-24 15:19:28 EDT
Min Alt: 4425 ft
Squawk: #1164
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May 24, 2026 at 7:21 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-21 07:10:58 EDT
Min Alt: 7850 ft
Squawk: #0673
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September 21, 2026 at 11:18 AM
JUST took this screenshot. This has used the callsign BAT91 previously.

I think these are only used for intel gathering and recon over the ocean?
December 29, 2025 at 1:38 AM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-20 11:55:34 EDT
Min Alt: 5025 ft
Squawk: #0667
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September 20, 2026 at 4:16 PM
Oh yes, I am very aware! I looked at the flight data during the two near-midairs earlier this month and wasn’t able to determine anything.

There are regular USM surveillance planes that go dark in the area (BAT91/92 out of Panama, RAWHYD51/52 out San Juan), but those are too small in these cases.
December 29, 2025 at 11:07 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-19 08:54:21 EDT
Min Alt: 3275 ft
Squawk: #0657
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September 19, 2026 at 12:56 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-16 14:30:22 EDT
Min Alt: 12125 ft
Squawk: #5471
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September 16, 2026 at 6:43 PM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-11 06:44:56 EDT
Min Alt: 775 ft
Squawk: #1410
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September 11, 2026 at 10:49 AM
#PlaneAlert ICAO: #ADD70A
Owner: #PREMIAIR
Flt: #BAT91 #N991HA #DH8B
Time: 2026-09-07 07:46:05 EDT
Min Alt: 9525 ft
Squawk: #1414
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September 7, 2026 at 11:48 AM