Agatha Christie's Poirot DVD cover.

TV Series (1989-2013)

Starring:
David Suchet (Hercule Poirot)
Hugh Fraser (Arthur Hastings)
Philip Jackson (James Japp)
Pauline Moran (Felicity Lemon)

The cases of an eccentrically refined Belgian detective.

Season 2

De Havilland DH.89A Dragon Rapide

Ep. 2.01 Peril at End House
Registration G-ACZE, c/n 6264 built in 1934.

Reg.G-ACZE De Havilland DH.89A Dragon Rapide of Chewton Glen Ltd.

Caudron C.270 Luciole

Ep. 2.01 Peril at End House
Caudron C.270 Luciole C/N 6607/32 with a Salmson engine. Probably G-BDFM (now F-AZVO).

Beechcraft C-45H Expeditor

Ep. 2.09 The Adventure of the Western Star
Registration G-BKGL, c/n 1164 built in 1952.
At Shoreham Airport (ESH/EGKA).

Season 3

Stampe SV.4C

Ep. 3.09 The Theft of the Royal Ruby
False registration G-AAVX.

Season 4

Ep. 4.02 Death in the Clouds
Registration G-AMRA, c/n 26735/15290 built in 1944. Made for movie airline Empire Airways.
Same aircraft seen in other movies - IMPDb: Frequently Seen Aircraft.
The Douglas DC-3 first flew in December 1935 and the novel is set in June 1935. So the aircraft is slightly anachronistic instead of the Handley Page H.P.42 as described in the novel (keep in mind that the last one was destroyed in 1941).
The flight is departing from Aéroport de Paris-Le Bourget / Paris-Le Bourget Airport (LBG/LFPB). Please read he discussion tab.

Reg.G-AMRA Douglas C-47B Dakota 4 of DAK Holdings Ltd.

Robinson Redwing 2

Ep. 4.02 Death in the Clouds
Reg. G-ABNX Robinson Redwing 2 c/n 9 seen once in Croydon.
This aircraft is the last survivor of a batch of twelve built in the 1930's (first flight : May 1930).