PPRuNe Forums - View Single Post - Boeing 737 TAT indications

21st November 2003 | 15:53

#2 (permalink)

BOAC

Per Ardua ad Astraeus

Joined: Mar 2000

Posts: 18,575

Likes: 4

From: UK

FWW - the TAT probe is aspirated by the a/c system, which is off for engine start. Therefore on any aspirated 737 system the reading is totally unreliable until packs have been running for a while and on the 200, until airborne.