Re: [SystemSafety] Chicago controller halts Delta jet's near-miss....

From: Bernd Sieker < >
Date: Tue, 30 Jun 2015 13:22:20 +0200

Hash: SHA512

On 29.06.2015 09:15, Klaus wrote:
> Dear all,

Thank you for the long explanations.

> Then, ICAO manual 9432 specifies: An aircraft shall not
> change its type of call sign during flight except when there is a
> likelihood that confusion may occur because of similar call signs;
> in such cases, an aircraft may be instructed by an air traffic
> control unit to change the type of its call sign temporarily.

Note that it does not say "change the callsign", but "change the *type* of callsign". Types are (a) registration, (b) operator + registration and (c) operator + flight number.

Since (c) is the norm for scheduled line flights, it could then be instructed to use type (a) or (b) instead.

> Best, Klaus Sievers

Comment: GPGTools -

iQEcBAEBCgAGBQJVknvsAAoJEPCgtsw5k0hSz3EIAKUp13IcKYAcLL/Awsc7CXEg oge2ZbKuoTnyHOQj4VcSBU6yqpAkb8qRUP1IOGExP2la9L/1DTHU+TZToDbpa0rQ RhpVKAegKYKbVh0yRdCV/wGmFHN2W/KBPz7RKOkO2LQAqiwnoVU3wP/sTF6Smgdx 5ktbLwNkHC5VfrlyvTTgodMdhPsho2oQm5IKmGXZPL+TLaV42rc7UTNX88nyJVjm Femv3e7ZduHMTzW6X6v1thts9rDoxs1aNBNGLP1m488Efrr46KvhJX6y28nLW/dy L8gctbBpEjQoWCl95YuYOAHcJFuYJWFsh7BpI5hZn/us0ByisXWiP105o3DdsHI= =IhJy

The System Safety Mailing List
systemsafety_at_xxxxxx Received on Tue Jun 30 2015 - 13:22:27 CEST

This archive was generated by hypermail 2.3.0 : Tue Jun 04 2019 - 21:17:07 CEST